diff options
Diffstat (limited to 'tests/run-make/coverage')
53 files changed, 0 insertions, 2543 deletions
diff --git a/tests/run-make/coverage/WARNING_KEEP_NAMES_SHORT.txt b/tests/run-make/coverage/WARNING_KEEP_NAMES_SHORT.txt deleted file mode 100644 index 6a1403b8a..000000000 --- a/tests/run-make/coverage/WARNING_KEEP_NAMES_SHORT.txt +++ /dev/null @@ -1,10 +0,0 @@ -IMPORTANT: The Rust test programs in this directory generate various output -files in the `../coverage*` directories (`expected` and `actual` files). - -Microsoft Windows has a relatively short limit on file paths (not individual -path components, but the entire path). The files generated by these -`../coverage*` tests typically have file paths that include the program -source file name plus function and type names (depending on the program). - -Keep the test file names short, and keep function names and other symbols -short as well, to avoid hitting the Windows limits. diff --git a/tests/run-make/coverage/abort.rs b/tests/run-make/coverage/abort.rs deleted file mode 100644 index 98264bdc1..000000000 --- a/tests/run-make/coverage/abort.rs +++ /dev/null @@ -1,66 +0,0 @@ -#![feature(c_unwind)] -#![allow(unused_assignments)] - -extern "C" fn might_abort(should_abort: bool) { - if should_abort { - println!("aborting..."); - panic!("panics and aborts"); - } else { - println!("Don't Panic"); - } -} - -fn main() -> Result<(), u8> { - let mut countdown = 10; - while countdown > 0 { - if countdown < 5 { - might_abort(false); - } - // See discussion (below the `Notes` section) on coverage results for the closing brace. - if countdown < 5 { might_abort(false); } // Counts for different regions on one line. - // For the following example, the closing brace is the last character on the line. - // This shows the character after the closing brace is highlighted, even if that next - // character is a newline. - if countdown < 5 { might_abort(false); } - countdown -= 1; - } - Ok(()) -} - -// Notes: -// 1. Compare this program and its coverage results to those of the similar tests -// `panic_unwind.rs` and `try_error_result.rs`. -// 2. This test confirms the coverage generated when a program includes `UnwindAction::Terminate`. -// 3. The test does not invoke the abort. By executing to a successful completion, the coverage -// results show where the program did and did not execute. -// 4. If the program actually aborted, the coverage counters would not be saved (which "works as -// intended"). Coverage results would show no executed coverage regions. -// 6. If `should_abort` is `true` and the program aborts, the program exits with a `132` status -// (on Linux at least). - -/* - -Expect the following coverage results: - -```text - 16| 11| while countdown > 0 { - 17| 10| if countdown < 5 { - 18| 4| might_abort(false); - 19| 6| } -``` - -This is actually correct. - -The condition `countdown < 5` executed 10 times (10 loop iterations). - -It evaluated to `true` 4 times, and executed the `might_abort()` call. - -It skipped the body of the `might_abort()` call 6 times. If an `if` does not include an explicit -`else`, the coverage implementation injects a counter, at the character immediately after the `if`s -closing brace, to count the "implicit" `else`. This is the only way to capture the coverage of the -non-true condition. - -As another example of why this is important, say the condition was `countdown < 50`, which is always -`true`. In that case, we wouldn't have a test for what happens if `might_abort()` is not called. -The closing brace would have a count of `0`, highlighting the missed coverage. -*/ diff --git a/tests/run-make/coverage/assert.rs b/tests/run-make/coverage/assert.rs deleted file mode 100644 index c85f2748e..000000000 --- a/tests/run-make/coverage/assert.rs +++ /dev/null @@ -1,32 +0,0 @@ -#![allow(unused_assignments)] -// expect-exit-status-101 - -fn might_fail_assert(one_plus_one: u32) { - println!("does 1 + 1 = {}?", one_plus_one); - assert_eq!(1 + 1, one_plus_one, "the argument was wrong"); -} - -fn main() -> Result<(),u8> { - let mut countdown = 10; - while countdown > 0 { - if countdown == 1 { - might_fail_assert(3); - } else if countdown < 5 { - might_fail_assert(2); - } - countdown -= 1; - } - Ok(()) -} - -// Notes: -// 1. Compare this program and its coverage results to those of the very similar test -// `panic_unwind.rs`, and similar tests `abort.rs` and `try_error_result.rs`. -// 2. This test confirms the coverage generated when a program passes or fails an `assert!()` or -// related `assert_*!()` macro. -// 3. Notably, the `assert` macros *do not* generate `TerminatorKind::Assert`. The macros produce -// conditional expressions, `TerminatorKind::SwitchInt` branches, and a possible call to -// `begin_panic_fmt()` (that begins a panic unwind, if the assertion test fails). -// 4. `TerminatoKind::Assert` is, however, also present in the MIR generated for this test -// (and in many other coverage tests). The `Assert` terminator is typically generated by the -// Rust compiler to check for runtime failures, such as numeric overflows. diff --git a/tests/run-make/coverage/async.rs b/tests/run-make/coverage/async.rs deleted file mode 100644 index efd9e62d6..000000000 --- a/tests/run-make/coverage/async.rs +++ /dev/null @@ -1,128 +0,0 @@ -#![allow(unused_assignments, dead_code)] - -// compile-flags: --edition=2018 -C opt-level=1 - -async fn c(x: u8) -> u8 { - if x == 8 { - 1 - } else { - 0 - } -} - -async fn d() -> u8 { 1 } - -async fn e() -> u8 { 1 } // unused function; executor does not block on `g()` - -async fn f() -> u8 { 1 } - -async fn foo() -> [bool; 10] { [false; 10] } // unused function; executor does not block on `h()` - -pub async fn g(x: u8) { - match x { - y if e().await == y => (), - y if f().await == y => (), - _ => (), - } -} - -async fn h(x: usize) { // The function signature is counted when called, but the body is not - // executed (not awaited) so the open brace has a `0` count (at least when - // displayed with `llvm-cov show` in color-mode). - match x { - y if foo().await[y] => (), - _ => (), - } -} - -async fn i(x: u8) { // line coverage is 1, but there are 2 regions: - // (a) the function signature, counted when the function is called; and - // (b) the open brace for the function body, counted once when the body is - // executed asynchronously. - match x { - y if c(x).await == y + 1 => { d().await; } - y if f().await == y + 1 => (), - _ => (), - } -} - -fn j(x: u8) { - // non-async versions of `c()`, `d()`, and `f()` to make it similar to async `i()`. - fn c(x: u8) -> u8 { - if x == 8 { - 1 // This line appears covered, but the 1-character expression span covering the `1` - // is not executed. (`llvm-cov show` displays a `^0` below the `1` ). This is because - // `fn j()` executes the open brace for the function body, followed by the function's - // first executable statement, `match x`. Inner function declarations are not - // "visible" to the MIR for `j()`, so the code region counts all lines between the - // open brace and the first statement as executed, which is, in a sense, true. - // `llvm-cov show` overcomes this kind of situation by showing the actual counts - // of the enclosed coverages, (that is, the `1` expression was not executed, and - // accurately displays a `0`). - } else { - 0 - } - } - fn d() -> u8 { 1 } // inner function is defined in-line, but the function is not executed - fn f() -> u8 { 1 } - match x { - y if c(x) == y + 1 => { d(); } - y if f() == y + 1 => (), - _ => (), - } -} - -fn k(x: u8) { // unused function - match x { - 1 => (), - 2 => (), - _ => (), - } -} - -fn l(x: u8) { - match x { - 1 => (), - 2 => (), - _ => (), - } -} - -async fn m(x: u8) -> u8 { x - 1 } - -fn main() { - let _ = g(10); - let _ = h(9); - let mut future = Box::pin(i(8)); - j(7); - l(6); - let _ = m(5); - executor::block_on(future.as_mut()); -} - -mod executor { - use core::{ - future::Future, - pin::Pin, - task::{Context, Poll, RawWaker, RawWakerVTable, Waker}, - }; - - pub fn block_on<F: Future>(mut future: F) -> F::Output { - let mut future = unsafe { Pin::new_unchecked(&mut future) }; - use std::hint::unreachable_unchecked; - static VTABLE: RawWakerVTable = RawWakerVTable::new( - |_| unsafe { unreachable_unchecked() }, // clone - |_| unsafe { unreachable_unchecked() }, // wake - |_| unsafe { unreachable_unchecked() }, // wake_by_ref - |_| (), - ); - let waker = unsafe { Waker::from_raw(RawWaker::new(core::ptr::null(), &VTABLE)) }; - let mut context = Context::from_waker(&waker); - - loop { - if let Poll::Ready(val) = future.as_mut().poll(&mut context) { - break val; - } - } - } -} diff --git a/tests/run-make/coverage/async2.rs b/tests/run-make/coverage/async2.rs deleted file mode 100644 index 959d48ce9..000000000 --- a/tests/run-make/coverage/async2.rs +++ /dev/null @@ -1,69 +0,0 @@ -// compile-flags: --edition=2018 - -use core::{ - future::Future, - marker::Send, - pin::Pin, -}; - -fn non_async_func() { - println!("non_async_func was covered"); - let b = true; - if b { - println!("non_async_func println in block"); - } -} - - - - -async fn async_func() { - println!("async_func was covered"); - let b = true; - if b { - println!("async_func println in block"); - } -} - - - - -async fn async_func_just_println() { - println!("async_func_just_println was covered"); -} - -fn main() { - println!("codecovsample::main"); - - non_async_func(); - - executor::block_on(async_func()); - executor::block_on(async_func_just_println()); -} - -mod executor { - use core::{ - future::Future, - pin::Pin, - task::{Context, Poll, RawWaker, RawWakerVTable, Waker}, - }; - - pub fn block_on<F: Future>(mut future: F) -> F::Output { - let mut future = unsafe { Pin::new_unchecked(&mut future) }; - use std::hint::unreachable_unchecked; - static VTABLE: RawWakerVTable = RawWakerVTable::new( - |_| unsafe { unreachable_unchecked() }, // clone - |_| unsafe { unreachable_unchecked() }, // wake - |_| unsafe { unreachable_unchecked() }, // wake_by_ref - |_| (), - ); - let waker = unsafe { Waker::from_raw(RawWaker::new(core::ptr::null(), &VTABLE)) }; - let mut context = Context::from_waker(&waker); - - loop { - if let Poll::Ready(val) = future.as_mut().poll(&mut context) { - break val; - } - } - } -} diff --git a/tests/run-make/coverage/closure.rs b/tests/run-make/coverage/closure.rs deleted file mode 100644 index 32ec0bcdf..000000000 --- a/tests/run-make/coverage/closure.rs +++ /dev/null @@ -1,215 +0,0 @@ -#![allow(unused_assignments, unused_variables)] -// compile-flags: -C opt-level=2 # fix described in rustc_middle/mir/mono.rs -fn main() { - // Initialize test constants in a way that cannot be determined at compile time, to ensure - // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from - // dependent conditions. - let is_true = std::env::args().len() == 1; - let is_false = ! is_true; - - let mut some_string = Some(String::from("the string content")); - println!( - "The string or alt: {}" - , - some_string - . - unwrap_or_else - ( - || - { - let mut countdown = 0; - if is_false { - countdown = 10; - } - "alt string 1".to_owned() - } - ) - ); - - some_string = Some(String::from("the string content")); - let - a - = - || - { - let mut countdown = 0; - if is_false { - countdown = 10; - } - "alt string 2".to_owned() - }; - println!( - "The string or alt: {}" - , - some_string - . - unwrap_or_else - ( - a - ) - ); - - some_string = None; - println!( - "The string or alt: {}" - , - some_string - . - unwrap_or_else - ( - || - { - let mut countdown = 0; - if is_false { - countdown = 10; - } - "alt string 3".to_owned() - } - ) - ); - - some_string = None; - let - a - = - || - { - let mut countdown = 0; - if is_false { - countdown = 10; - } - "alt string 4".to_owned() - }; - println!( - "The string or alt: {}" - , - some_string - . - unwrap_or_else - ( - a - ) - ); - - let - quote_closure - = - |val| - { - let mut countdown = 0; - if is_false { - countdown = 10; - } - format!("'{}'", val) - }; - println!( - "Repeated, quoted string: {:?}" - , - std::iter::repeat("repeat me") - .take(5) - .map - ( - quote_closure - ) - .collect::<Vec<_>>() - ); - - let - _unused_closure - = - | - mut countdown - | - { - if is_false { - countdown = 10; - } - "closure should be unused".to_owned() - }; - - let mut countdown = 10; - let _short_unused_closure = | _unused_arg: u8 | countdown += 1; - - - let short_used_covered_closure_macro = | used_arg: u8 | println!("called"); - let short_used_not_covered_closure_macro = | used_arg: u8 | println!("not called"); - let _short_unused_closure_macro = | _unused_arg: u8 | println!("not called"); - - - - - let _short_unused_closure_block = | _unused_arg: u8 | { println!("not called") }; - - let _shortish_unused_closure = | _unused_arg: u8 | { - println!("not called") - }; - - let _as_short_unused_closure = | - _unused_arg: u8 - | { println!("not called") }; - - let _almost_as_short_unused_closure = | - _unused_arg: u8 - | { println!("not called") } - ; - - - - - - let _short_unused_closure_line_break_no_block = | _unused_arg: u8 | -println!("not called") - ; - - let _short_unused_closure_line_break_no_block2 = - | _unused_arg: u8 | - println!( - "not called" - ) - ; - - let short_used_not_covered_closure_line_break_no_block_embedded_branch = - | _unused_arg: u8 | - println!( - "not called: {}", - if is_true { "check" } else { "me" } - ) - ; - - let short_used_not_covered_closure_line_break_block_embedded_branch = - | _unused_arg: u8 | - { - println!( - "not called: {}", - if is_true { "check" } else { "me" } - ) - } - ; - - let short_used_covered_closure_line_break_no_block_embedded_branch = - | _unused_arg: u8 | - println!( - "not called: {}", - if is_true { "check" } else { "me" } - ) - ; - - let short_used_covered_closure_line_break_block_embedded_branch = - | _unused_arg: u8 | - { - println!( - "not called: {}", - if is_true { "check" } else { "me" } - ) - } - ; - - if is_false { - short_used_not_covered_closure_macro(0); - short_used_not_covered_closure_line_break_no_block_embedded_branch(0); - short_used_not_covered_closure_line_break_block_embedded_branch(0); - } - short_used_covered_closure_macro(0); - short_used_covered_closure_line_break_no_block_embedded_branch(0); - short_used_covered_closure_line_break_block_embedded_branch(0); -} diff --git a/tests/run-make/coverage/closure_macro.rs b/tests/run-make/coverage/closure_macro.rs deleted file mode 100644 index 5e3b00d1e..000000000 --- a/tests/run-make/coverage/closure_macro.rs +++ /dev/null @@ -1,40 +0,0 @@ -// compile-flags: --edition=2018 -#![feature(no_coverage)] - -macro_rules! bail { - ($msg:literal $(,)?) => { - if $msg.len() > 0 { - println!("no msg"); - } else { - println!($msg); - } - return Err(String::from($msg)); - }; -} - -macro_rules! on_error { - ($value:expr, $error_message:expr) => { - $value.or_else(|e| { // FIXME(85000): no coverage in closure macros - let message = format!($error_message, e); - if message.len() > 0 { - println!("{}", message); - Ok(String::from("ok")) - } else { - bail!("error"); - } - }) - }; -} - -fn load_configuration_files() -> Result<String, String> { - Ok(String::from("config")) -} - -pub fn main() -> Result<(), String> { - println!("Starting service"); - let config = on_error!(load_configuration_files(), "Error loading configs: {}")?; - - let startup_delay_duration = String::from("arg"); - let _ = (config, startup_delay_duration); - Ok(()) -} diff --git a/tests/run-make/coverage/closure_macro_async.rs b/tests/run-make/coverage/closure_macro_async.rs deleted file mode 100644 index e3e89e9c8..000000000 --- a/tests/run-make/coverage/closure_macro_async.rs +++ /dev/null @@ -1,81 +0,0 @@ -// compile-flags: --edition=2018 -#![feature(no_coverage)] - -macro_rules! bail { - ($msg:literal $(,)?) => { - if $msg.len() > 0 { - println!("no msg"); - } else { - println!($msg); - } - return Err(String::from($msg)); - }; -} - -macro_rules! on_error { - ($value:expr, $error_message:expr) => { - $value.or_else(|e| { // FIXME(85000): no coverage in closure macros - let message = format!($error_message, e); - if message.len() > 0 { - println!("{}", message); - Ok(String::from("ok")) - } else { - bail!("error"); - } - }) - }; -} - -fn load_configuration_files() -> Result<String, String> { - Ok(String::from("config")) -} - -pub async fn test() -> Result<(), String> { - println!("Starting service"); - let config = on_error!(load_configuration_files(), "Error loading configs: {}")?; - - let startup_delay_duration = String::from("arg"); - let _ = (config, startup_delay_duration); - Ok(()) -} - -#[no_coverage] -fn main() { - executor::block_on(test()); -} - -mod executor { - use core::{ - future::Future, - pin::Pin, - task::{Context, Poll, RawWaker, RawWakerVTable, Waker}, - }; - - #[no_coverage] - pub fn block_on<F: Future>(mut future: F) -> F::Output { - let mut future = unsafe { Pin::new_unchecked(&mut future) }; - use std::hint::unreachable_unchecked; - static VTABLE: RawWakerVTable = RawWakerVTable::new( - - #[no_coverage] - |_| unsafe { unreachable_unchecked() }, // clone - - #[no_coverage] - |_| unsafe { unreachable_unchecked() }, // wake - - #[no_coverage] - |_| unsafe { unreachable_unchecked() }, // wake_by_ref - - #[no_coverage] - |_| (), - ); - let waker = unsafe { Waker::from_raw(RawWaker::new(core::ptr::null(), &VTABLE)) }; - let mut context = Context::from_waker(&waker); - - loop { - if let Poll::Ready(val) = future.as_mut().poll(&mut context) { - break val; - } - } - } -} diff --git a/tests/run-make/coverage/compiletest-ignore-dir b/tests/run-make/coverage/compiletest-ignore-dir deleted file mode 100644 index 470ff9960..000000000 --- a/tests/run-make/coverage/compiletest-ignore-dir +++ /dev/null @@ -1,3 +0,0 @@ -# Directory "coverage" supports the tests at prefix ../coverage-* - -# Use ./x.py [options] test tests/run-make/coverage to run all related tests. diff --git a/tests/run-make/coverage/conditions.rs b/tests/run-make/coverage/conditions.rs deleted file mode 100644 index 057599d1b..000000000 --- a/tests/run-make/coverage/conditions.rs +++ /dev/null @@ -1,87 +0,0 @@ -#![allow(unused_assignments, unused_variables)] - -fn main() { - let mut countdown = 0; - if true { - countdown = 10; - } - - const B: u32 = 100; - let x = if countdown > 7 { - countdown -= 4; - B - } else if countdown > 2 { - if countdown < 1 || countdown > 5 || countdown != 9 { - countdown = 0; - } - countdown -= 5; - countdown - } else { - return; - }; - - let mut countdown = 0; - if true { - countdown = 10; - } - - if countdown > 7 { - countdown -= 4; - } else if countdown > 2 { - if countdown < 1 || countdown > 5 || countdown != 9 { - countdown = 0; - } - countdown -= 5; - } else { - return; - } - - if true { - let mut countdown = 0; - if true { - countdown = 10; - } - - if countdown > 7 { - countdown -= 4; - } - else if countdown > 2 { - if countdown < 1 || countdown > 5 || countdown != 9 { - countdown = 0; - } - countdown -= 5; - } else { - return; - } - } - - - let mut countdown = 0; - if true { - countdown = 1; - } - - let z = if countdown > 7 { - countdown -= 4; - } else if countdown > 2 { - if countdown < 1 || countdown > 5 || countdown != 9 { - countdown = 0; - } - countdown -= 5; - } else { - let should_be_reachable = countdown; - println!("reached"); - return; - }; - - let w = if countdown > 7 { - countdown -= 4; - } else if countdown > 2 { - if countdown < 1 || countdown > 5 || countdown != 9 { - countdown = 0; - } - countdown -= 5; - } else { - return; - }; -} diff --git a/tests/run-make/coverage/continue.rs b/tests/run-make/coverage/continue.rs deleted file mode 100644 index 624aa9834..000000000 --- a/tests/run-make/coverage/continue.rs +++ /dev/null @@ -1,69 +0,0 @@ -#![allow(unused_assignments, unused_variables)] - -fn main() { - let is_true = std::env::args().len() == 1; - - let mut x = 0; - for _ in 0..10 { - match is_true { - true => { - continue; - } - _ => { - x = 1; - } - } - x = 3; - } - for _ in 0..10 { - match is_true { - false => { - x = 1; - } - _ => { - continue; - } - } - x = 3; - } - for _ in 0..10 { - match is_true { - true => { - x = 1; - } - _ => { - continue; - } - } - x = 3; - } - for _ in 0..10 { - if is_true { - continue; - } - x = 3; - } - for _ in 0..10 { - match is_true { - false => { - x = 1; - } - _ => { - let _ = x; - } - } - x = 3; - } - for _ in 0..10 { - match is_true { - false => { - x = 1; - } - _ => { - break; - } - } - x = 3; - } - let _ = x; -} diff --git a/tests/run-make/coverage/coverage_tools.mk b/tests/run-make/coverage/coverage_tools.mk deleted file mode 100644 index 028c020a4..000000000 --- a/tests/run-make/coverage/coverage_tools.mk +++ /dev/null @@ -1,6 +0,0 @@ -# Common Makefile include for Rust `run-make/coverage-* tests. Include this -# file with the line: -# -# include ../coverage/coverage_tools.mk - -include ../tools.mk diff --git a/tests/run-make/coverage/dead_code.rs b/tests/run-make/coverage/dead_code.rs deleted file mode 100644 index a1285df0e..000000000 --- a/tests/run-make/coverage/dead_code.rs +++ /dev/null @@ -1,37 +0,0 @@ -#![allow(unused_assignments, unused_variables)] - -pub fn unused_pub_fn_not_in_library() { - // Initialize test constants in a way that cannot be determined at compile time, to ensure - // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from - // dependent conditions. - let is_true = std::env::args().len() == 1; - - let mut countdown = 0; - if is_true { - countdown = 10; - } -} - -fn unused_fn() { - // Initialize test constants in a way that cannot be determined at compile time, to ensure - // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from - // dependent conditions. - let is_true = std::env::args().len() == 1; - - let mut countdown = 0; - if is_true { - countdown = 10; - } -} - -fn main() { - // Initialize test constants in a way that cannot be determined at compile time, to ensure - // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from - // dependent conditions. - let is_true = std::env::args().len() == 1; - - let mut countdown = 0; - if is_true { - countdown = 10; - } -} diff --git a/tests/run-make/coverage/doctest.rs b/tests/run-make/coverage/doctest.rs deleted file mode 100644 index ec04ea570..000000000 --- a/tests/run-make/coverage/doctest.rs +++ /dev/null @@ -1,99 +0,0 @@ -//! This test ensures that code from doctests is properly re-mapped. -//! See <https://github.com/rust-lang/rust/issues/79417> for more info. -//! -//! Just some random code: -//! ``` -//! if true { -//! // this is executed! -//! assert_eq!(1, 1); -//! } else { -//! // this is not! -//! assert_eq!(1, 2); -//! } -//! ``` -//! -//! doctest testing external code: -//! ``` -//! extern crate doctest_crate; -//! doctest_crate::fn_run_in_doctests(1); -//! ``` -//! -//! doctest returning a result: -//! ``` -//! #[derive(Debug, PartialEq)] -//! struct SomeError { -//! msg: String, -//! } -//! let mut res = Err(SomeError { msg: String::from("a message") }); -//! if res.is_ok() { -//! res?; -//! } else { -//! if *res.as_ref().unwrap_err() == *res.as_ref().unwrap_err() { -//! println!("{:?}", res); -//! } -//! if *res.as_ref().unwrap_err() == *res.as_ref().unwrap_err() { -//! res = Ok(1); -//! } -//! res = Ok(0); -//! } -//! // need to be explicit because rustdoc cant infer the return type -//! Ok::<(), SomeError>(()) -//! ``` -//! -//! doctest with custom main: -//! ``` -//! fn some_func() { -//! println!("called some_func()"); -//! } -//! -//! #[derive(Debug)] -//! struct SomeError; -//! -//! extern crate doctest_crate; -//! -//! fn doctest_main() -> Result<(), SomeError> { -//! some_func(); -//! doctest_crate::fn_run_in_doctests(2); -//! Ok(()) -//! } -//! -//! // this `main` is not shown as covered, as it clashes with all the other -//! // `main` functions that were automatically generated for doctests -//! fn main() -> Result<(), SomeError> { -//! doctest_main() -//! } -//! ``` - -/// doctest attached to fn testing external code: -/// ``` -/// extern crate doctest_crate; -/// doctest_crate::fn_run_in_doctests(3); -/// ``` -/// -fn main() { - if true { - assert_eq!(1, 1); - } else { - assert_eq!(1, 2); - } -} - -// FIXME(Swatinem): Fix known issue that coverage code region columns need to be offset by the -// doc comment line prefix (`///` or `//!`) and any additional indent (before or after the doc -// comment characters). This test produces `llvm-cov show` results demonstrating the problem. -// -// One of the above tests now includes: `derive(Debug, PartialEq)`, producing an `llvm-cov show` -// result with a distinct count for `Debug`, denoted by `^1`, but the caret points to the wrong -// column. Similarly, the `if` blocks without `else` blocks show `^0`, which should point at, or -// one character past, the `if` block's closing brace. In both cases, these are most likely off -// by the number of characters stripped from the beginning of each doc comment line: indent -// whitespace, if any, doc comment prefix (`//!` in this case) and (I assume) one space character -// (?). Note, when viewing `llvm-cov show` results in `--color` mode, the column offset errors are -// more pronounced, and show up in more places, with background color used to show some distinct -// code regions with different coverage counts. -// -// NOTE: Since the doc comment line prefix may vary, one possible solution is to replace each -// character stripped from the beginning of doc comment lines with a space. This will give coverage -// results the correct column offsets, and I think it should compile correctly, but I don't know -// what affect it might have on diagnostic messages from the compiler, and whether anyone would care -// if the indentation changed. I don't know if there is a more viable solution. diff --git a/tests/run-make/coverage/drop_trait.rs b/tests/run-make/coverage/drop_trait.rs deleted file mode 100644 index d15bfc0f8..000000000 --- a/tests/run-make/coverage/drop_trait.rs +++ /dev/null @@ -1,33 +0,0 @@ -#![allow(unused_assignments)] -// expect-exit-status-1 - -struct Firework { - strength: i32, -} - -impl Drop for Firework { - fn drop(&mut self) { - println!("BOOM times {}!!!", self.strength); - } -} - -fn main() -> Result<(),u8> { - let _firecracker = Firework { strength: 1 }; - - let _tnt = Firework { strength: 100 }; - - if true { - println!("Exiting with error..."); - return Err(1); - } - - let _ = Firework { strength: 1000 }; - - Ok(()) -} - -// Expected program output: -// Exiting with error... -// BOOM times 100!!! -// BOOM times 1!!! -// Error: 1 diff --git a/tests/run-make/coverage/generator.rs b/tests/run-make/coverage/generator.rs deleted file mode 100644 index 431999102..000000000 --- a/tests/run-make/coverage/generator.rs +++ /dev/null @@ -1,30 +0,0 @@ -#![feature(generators, generator_trait)] - -use std::ops::{Generator, GeneratorState}; -use std::pin::Pin; - -// The following implementation of a function called from a `yield` statement -// (apparently requiring the Result and the `String` type or constructor) -// creates conditions where the `generator::StateTransform` MIR transform will -// drop all `Counter` `Coverage` statements from a MIR. `simplify.rs` has logic -// to handle this condition, and still report dead block coverage. -fn get_u32(val: bool) -> Result<u32, String> { - if val { Ok(1) } else { Err(String::from("some error")) } -} - -fn main() { - let is_true = std::env::args().len() == 1; - let mut generator = || { - yield get_u32(is_true); - return "foo"; - }; - - match Pin::new(&mut generator).resume(()) { - GeneratorState::Yielded(Ok(1)) => {} - _ => panic!("unexpected return from resume"), - } - match Pin::new(&mut generator).resume(()) { - GeneratorState::Complete("foo") => {} - _ => panic!("unexpected return from resume"), - } -} diff --git a/tests/run-make/coverage/generics.rs b/tests/run-make/coverage/generics.rs deleted file mode 100644 index 18b388684..000000000 --- a/tests/run-make/coverage/generics.rs +++ /dev/null @@ -1,48 +0,0 @@ -#![allow(unused_assignments)] -// expect-exit-status-1 - -struct Firework<T> where T: Copy + std::fmt::Display { - strength: T, -} - -impl<T> Firework<T> where T: Copy + std::fmt::Display { - #[inline(always)] - fn set_strength(&mut self, new_strength: T) { - self.strength = new_strength; - } -} - -impl<T> Drop for Firework<T> where T: Copy + std::fmt::Display { - #[inline(always)] - fn drop(&mut self) { - println!("BOOM times {}!!!", self.strength); - } -} - -fn main() -> Result<(),u8> { - let mut firecracker = Firework { strength: 1 }; - firecracker.set_strength(2); - - let mut tnt = Firework { strength: 100.1 }; - tnt.set_strength(200.1); - tnt.set_strength(300.3); - - if true { - println!("Exiting with error..."); - return Err(1); - } - - - - - - let _ = Firework { strength: 1000 }; - - Ok(()) -} - -// Expected program output: -// Exiting with error... -// BOOM times 100!!! -// BOOM times 1!!! -// Error: 1 diff --git a/tests/run-make/coverage/if.rs b/tests/run-make/coverage/if.rs deleted file mode 100644 index 8ad5042ff..000000000 --- a/tests/run-make/coverage/if.rs +++ /dev/null @@ -1,28 +0,0 @@ -#![allow(unused_assignments, unused_variables)] - -fn main() { - // Initialize test constants in a way that cannot be determined at compile time, to ensure - // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from - // dependent conditions. - let - is_true - = - std::env::args().len() - == - 1 - ; - let - mut - countdown - = - 0 - ; - if - is_true - { - countdown - = - 10 - ; - } -} diff --git a/tests/run-make/coverage/if_else.rs b/tests/run-make/coverage/if_else.rs deleted file mode 100644 index 3244e1e3a..000000000 --- a/tests/run-make/coverage/if_else.rs +++ /dev/null @@ -1,40 +0,0 @@ -#![allow(unused_assignments, unused_variables)] - -fn main() { - // Initialize test constants in a way that cannot be determined at compile time, to ensure - // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from - // dependent conditions. - let is_true = std::env::args().len() == 1; - - let mut countdown = 0; - if - is_true - { - countdown - = - 10 - ; - } - else // Note coverage region difference without semicolon - { - countdown - = - 100 - } - - if - is_true - { - countdown - = - 10 - ; - } - else - { - countdown - = - 100 - ; - } -} diff --git a/tests/run-make/coverage/inline-dead.rs b/tests/run-make/coverage/inline-dead.rs deleted file mode 100644 index 854fa0629..000000000 --- a/tests/run-make/coverage/inline-dead.rs +++ /dev/null @@ -1,27 +0,0 @@ -// Regression test for issue #98833. -// compile-flags: -Zinline-mir -Cdebug-assertions=off - -fn main() { - println!("{}", live::<false>()); - - let f = |x: bool| { - debug_assert!( - x - ); - }; - f(false); -} - -#[inline] -fn live<const B: bool>() -> u32 { - if B { - dead() - } else { - 0 - } -} - -#[inline] -fn dead() -> u32 { - 42 -} diff --git a/tests/run-make/coverage/inline.rs b/tests/run-make/coverage/inline.rs deleted file mode 100644 index 9cfab9ddb..000000000 --- a/tests/run-make/coverage/inline.rs +++ /dev/null @@ -1,51 +0,0 @@ -// compile-flags: -Zinline-mir - -use std::fmt::Display; - -fn main() { - permutations(&['a', 'b', 'c']); -} - -#[inline(always)] -fn permutations<T: Copy + Display>(xs: &[T]) { - let mut ys = xs.to_owned(); - permutate(&mut ys, 0); -} - -fn permutate<T: Copy + Display>(xs: &mut [T], k: usize) { - let n = length(xs); - if k == n { - display(xs); - } else if k < n { - for i in k..n { - swap(xs, i, k); - permutate(xs, k + 1); - swap(xs, i, k); - } - } else { - error(); - } -} - -fn length<T>(xs: &[T]) -> usize { - xs.len() -} - -#[inline] -fn swap<T: Copy>(xs: &mut [T], i: usize, j: usize) { - let t = xs[i]; - xs[i] = xs[j]; - xs[j] = t; -} - -fn display<T: Display>(xs: &[T]) { - for x in xs { - print!("{}", x); - } - println!(); -} - -#[inline(always)] -fn error() { - panic!("error"); -} diff --git a/tests/run-make/coverage/inner_items.rs b/tests/run-make/coverage/inner_items.rs deleted file mode 100644 index bcb62b303..000000000 --- a/tests/run-make/coverage/inner_items.rs +++ /dev/null @@ -1,57 +0,0 @@ -#![allow(unused_assignments, unused_variables, dead_code)] - -fn main() { - // Initialize test constants in a way that cannot be determined at compile time, to ensure - // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from - // dependent conditions. - let is_true = std::env::args().len() == 1; - - let mut countdown = 0; - if is_true { - countdown = 10; - } - - mod in_mod { - const IN_MOD_CONST: u32 = 1000; - } - - fn in_func(a: u32) { - let b = 1; - let c = a + b; - println!("c = {}", c) - } - - struct InStruct { - in_struct_field: u32, - } - - const IN_CONST: u32 = 1234; - - trait InTrait { - fn trait_func(&mut self, incr: u32); - - fn default_trait_func(&mut self) { - in_func(IN_CONST); - self.trait_func(IN_CONST); - } - } - - impl InTrait for InStruct { - fn trait_func(&mut self, incr: u32) { - self.in_struct_field += incr; - in_func(self.in_struct_field); - } - } - - type InType = String; - - if is_true { - in_func(countdown); - } - - let mut val = InStruct { - in_struct_field: 101, - }; - - val.default_trait_func(); -} diff --git a/tests/run-make/coverage/issue-83601.rs b/tests/run-make/coverage/issue-83601.rs deleted file mode 100644 index 0b72a8194..000000000 --- a/tests/run-make/coverage/issue-83601.rs +++ /dev/null @@ -1,14 +0,0 @@ -// Shows that rust-lang/rust/83601 is resolved - -#[derive(Debug, PartialEq, Eq)] -struct Foo(u32); - -fn main() { - let bar = Foo(1); - assert_eq!(bar, Foo(1)); - let baz = Foo(0); - assert_ne!(baz, Foo(1)); - println!("{:?}", Foo(1)); - println!("{:?}", bar); - println!("{:?}", baz); -} diff --git a/tests/run-make/coverage/issue-84561.rs b/tests/run-make/coverage/issue-84561.rs deleted file mode 100644 index b39a289c4..000000000 --- a/tests/run-make/coverage/issue-84561.rs +++ /dev/null @@ -1,182 +0,0 @@ -// This demonstrated Issue #84561: function-like macros produce unintuitive coverage results. - -// expect-exit-status-101 -#[derive(PartialEq, Eq)] -struct Foo(u32); -fn test3() { - let is_true = std::env::args().len() == 1; - let bar = Foo(1); - assert_eq!(bar, Foo(1)); - let baz = Foo(0); - assert_ne!(baz, Foo(1)); - println!("{:?}", Foo(1)); - println!("{:?}", bar); - println!("{:?}", baz); - - assert_eq!(Foo(1), Foo(1)); - assert_ne!(Foo(0), Foo(1)); - assert_eq!(Foo(2), Foo(2)); - let bar = Foo(0); - assert_ne!(bar, Foo(3)); - assert_ne!(Foo(0), Foo(4)); - assert_eq!(Foo(3), Foo(3), "with a message"); - println!("{:?}", bar); - println!("{:?}", Foo(1)); - - assert_ne!(Foo(0), Foo(5), "{}", if is_true { "true message" } else { "false message" }); - assert_ne!( - Foo(0) - , - Foo(5) - , - "{}" - , - if - is_true - { - "true message" - } else { - "false message" - } - ); - - let is_true = std::env::args().len() == 1; - - assert_eq!( - Foo(1), - Foo(1) - ); - assert_ne!( - Foo(0), - Foo(1) - ); - assert_eq!( - Foo(2), - Foo(2) - ); - let bar = Foo(1); - assert_ne!( - bar, - Foo(3) - ); - if is_true { - assert_ne!( - Foo(0), - Foo(4) - ); - } else { - assert_eq!( - Foo(3), - Foo(3) - ); - } - if is_true { - assert_ne!( - Foo(0), - Foo(4), - "with a message" - ); - } else { - assert_eq!( - Foo(3), - Foo(3), - "with a message" - ); - } - assert_ne!( - if is_true { - Foo(0) - } else { - Foo(1) - }, - Foo(5) - ); - assert_ne!( - Foo(5), - if is_true { - Foo(0) - } else { - Foo(1) - } - ); - assert_ne!( - if is_true { - assert_eq!( - Foo(3), - Foo(3) - ); - Foo(0) - } else { - assert_ne!( - if is_true { - Foo(0) - } else { - Foo(1) - }, - Foo(5) - ); - Foo(1) - }, - Foo(5), - "with a message" - ); - assert_eq!( - Foo(1), - Foo(3), - "this assert should fail" - ); - assert_eq!( - Foo(3), - Foo(3), - "this assert should not be reached" - ); -} - -impl std::fmt::Debug for Foo { - fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result { - write!(f, "try and succeed")?; - Ok(()) - } -} - -static mut DEBUG_LEVEL_ENABLED: bool = false; - -macro_rules! debug { - ($($arg:tt)+) => ( - if unsafe { DEBUG_LEVEL_ENABLED } { - println!($($arg)+); - } - ); -} - -fn test1() { - debug!("debug is enabled"); - debug!("debug is enabled"); - let _ = 0; - debug!("debug is enabled"); - unsafe { - DEBUG_LEVEL_ENABLED = true; - } - debug!("debug is enabled"); -} - -macro_rules! call_debug { - ($($arg:tt)+) => ( - fn call_print(s: &str) { - print!("{}", s); - } - - call_print("called from call_debug: "); - debug!($($arg)+); - ); -} - -fn test2() { - call_debug!("debug is enabled"); -} - -fn main() { - test1(); - test2(); - test3(); -} diff --git a/tests/run-make/coverage/issue-85461.rs b/tests/run-make/coverage/issue-85461.rs deleted file mode 100644 index a1b9ebb1e..000000000 --- a/tests/run-make/coverage/issue-85461.rs +++ /dev/null @@ -1,10 +0,0 @@ -// Regression test for #85461: MSVC sometimes fail to link with dead code and #[inline(always)] - -extern crate inline_always_with_dead_code; - -use inline_always_with_dead_code::{bar, baz}; - -fn main() { - bar::call_me(); - baz::call_me(); -} diff --git a/tests/run-make/coverage/issue-93054.rs b/tests/run-make/coverage/issue-93054.rs deleted file mode 100644 index c160b3db0..000000000 --- a/tests/run-make/coverage/issue-93054.rs +++ /dev/null @@ -1,28 +0,0 @@ -// Regression test for #93054: Functions using uninhabited types often only have a single, -// unreachable basic block which doesn't get instrumented. This should not cause llvm-cov to fail. -// Since these kinds functions can't be invoked anyway, it's ok to not have coverage data for them. - -// compile-flags: --edition=2021 - -enum Never { } - -impl Never { - fn foo(self) { - match self { } - make().map(|never| match never { }); - } - - fn bar(&self) { - match *self { } - } -} - -async fn foo2(never: Never) { - match never { } -} - -fn make() -> Option<Never> { - None -} - -fn main() { } diff --git a/tests/run-make/coverage/lazy_boolean.rs b/tests/run-make/coverage/lazy_boolean.rs deleted file mode 100644 index bb6219e85..000000000 --- a/tests/run-make/coverage/lazy_boolean.rs +++ /dev/null @@ -1,61 +0,0 @@ -#![allow(unused_assignments, unused_variables)] - -fn main() { - // Initialize test constants in a way that cannot be determined at compile time, to ensure - // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from - // dependent conditions. - let is_true = std::env::args().len() == 1; - - let (mut a, mut b, mut c) = (0, 0, 0); - if is_true { - a = 1; - b = 10; - c = 100; - } - let - somebool - = - a < b - || - b < c - ; - let - somebool - = - b < a - || - b < c - ; - let somebool = a < b && b < c; - let somebool = b < a && b < c; - - if - ! - is_true - { - a = 2 - ; - } - - if - is_true - { - b = 30 - ; - } - else - { - c = 400 - ; - } - - if !is_true { - a = 2; - } - - if is_true { - b = 30; - } else { - c = 400; - } -} diff --git a/tests/run-make/coverage/lib/doctest_crate.rs b/tests/run-make/coverage/lib/doctest_crate.rs deleted file mode 100644 index c3210146d..000000000 --- a/tests/run-make/coverage/lib/doctest_crate.rs +++ /dev/null @@ -1,9 +0,0 @@ -/// A function run only from within doctests -pub fn fn_run_in_doctests(conditional: usize) { - match conditional { - 1 => assert_eq!(1, 1), // this is run, - 2 => assert_eq!(1, 1), // this, - 3 => assert_eq!(1, 1), // and this too - _ => assert_eq!(1, 2), // however this is not - } -} diff --git a/tests/run-make/coverage/lib/inline_always_with_dead_code.rs b/tests/run-make/coverage/lib/inline_always_with_dead_code.rs deleted file mode 100644 index 2b21dee6c..000000000 --- a/tests/run-make/coverage/lib/inline_always_with_dead_code.rs +++ /dev/null @@ -1,22 +0,0 @@ -// compile-flags: -Cinstrument-coverage -Ccodegen-units=4 -Copt-level=0 - -#![allow(dead_code)] - -mod foo { - #[inline(always)] - pub fn called() { } - - fn uncalled() { } -} - -pub mod bar { - pub fn call_me() { - super::foo::called(); - } -} - -pub mod baz { - pub fn call_me() { - super::foo::called(); - } -} diff --git a/tests/run-make/coverage/lib/unused_mod_helper.rs b/tests/run-make/coverage/lib/unused_mod_helper.rs deleted file mode 100644 index ae1cc1531..000000000 --- a/tests/run-make/coverage/lib/unused_mod_helper.rs +++ /dev/null @@ -1,3 +0,0 @@ -pub fn never_called_function() { - println!("I am never called"); -} diff --git a/tests/run-make/coverage/lib/used_crate.rs b/tests/run-make/coverage/lib/used_crate.rs deleted file mode 100644 index 8b8b1f7f3..000000000 --- a/tests/run-make/coverage/lib/used_crate.rs +++ /dev/null @@ -1,100 +0,0 @@ -#![allow(unused_assignments, unused_variables)] -// compile-flags: -C opt-level=3 # validates coverage now works with optimizations -use std::fmt::Debug; - -pub fn used_function() { - // Initialize test constants in a way that cannot be determined at compile time, to ensure - // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from - // dependent conditions. - let is_true = std::env::args().len() == 1; - let mut countdown = 0; - if is_true { - countdown = 10; - } - use_this_lib_crate(); -} - -pub fn used_only_from_bin_crate_generic_function<T: Debug>(arg: T) { - println!("used_only_from_bin_crate_generic_function with {:?}", arg); -} -// Expect for above function: `Unexecuted instantiation` (see below) -pub fn used_only_from_this_lib_crate_generic_function<T: Debug>(arg: T) { - println!("used_only_from_this_lib_crate_generic_function with {:?}", arg); -} - -pub fn used_from_bin_crate_and_lib_crate_generic_function<T: Debug>(arg: T) { - println!("used_from_bin_crate_and_lib_crate_generic_function with {:?}", arg); -} - -pub fn used_with_same_type_from_bin_crate_and_lib_crate_generic_function<T: Debug>(arg: T) { - println!("used_with_same_type_from_bin_crate_and_lib_crate_generic_function with {:?}", arg); -} - -pub fn unused_generic_function<T: Debug>(arg: T) { - println!("unused_generic_function with {:?}", arg); -} - -pub fn unused_function() { - let is_true = std::env::args().len() == 1; - let mut countdown = 2; - if !is_true { - countdown = 20; - } -} - -fn unused_private_function() { - let is_true = std::env::args().len() == 1; - let mut countdown = 2; - if !is_true { - countdown = 20; - } -} - -fn use_this_lib_crate() { - used_from_bin_crate_and_lib_crate_generic_function("used from library used_crate.rs"); - used_with_same_type_from_bin_crate_and_lib_crate_generic_function( - "used from library used_crate.rs", - ); - let some_vec = vec![5, 6, 7, 8]; - used_only_from_this_lib_crate_generic_function(some_vec); - used_only_from_this_lib_crate_generic_function("used ONLY from library used_crate.rs"); -} - -// FIXME(#79651): "Unexecuted instantiation" errors appear in coverage results, -// for example: -// -// | Unexecuted instantiation: used_crate::used_only_from_bin_crate_generic_function::<_> -// -// These notices appear when `llvm-cov` shows instantiations. This may be a -// default option, but it can be suppressed with: -// -// ```shell -// $ `llvm-cov show --show-instantiations=0 ...` -// ``` -// -// The notice is triggered because the function is unused by the library itself, -// and when the library is compiled, a synthetic function is generated, so -// unused function coverage can be reported. Coverage can be skipped for unused -// generic functions with: -// -// ```shell -// $ `rustc -Zunstable-options -C instrument-coverage=except-unused-generics ...` -// ``` -// -// Even though this function is used by `uses_crate.rs` (and -// counted), with substitutions for `T`, those instantiations are only generated -// when the generic function is actually used (from the binary, not from this -// library crate). So the test result shows coverage for all instantiated -// versions and their generic type substitutions, plus the `Unexecuted -// instantiation` message for the non-substituted version. This is valid, but -// unfortunately a little confusing. -// -// The library crate has its own coverage map, and the only way to show unused -// coverage of a generic function is to include the generic function in the -// coverage map, marked as an "unused function". If the library were used by -// another binary that never used this generic function, then it would be valid -// to show the unused generic, with unknown substitution (`_`). -// -// The alternative is to exclude all generics from being included in the "unused -// functions" list, which would then omit coverage results for -// `unused_generic_function<T>()`, below. diff --git a/tests/run-make/coverage/lib/used_inline_crate.rs b/tests/run-make/coverage/lib/used_inline_crate.rs deleted file mode 100644 index 4a052756d..000000000 --- a/tests/run-make/coverage/lib/used_inline_crate.rs +++ /dev/null @@ -1,90 +0,0 @@ -#![allow(unused_assignments, unused_variables)] - -// compile-flags: -C opt-level=3 # validates coverage now works with optimizations - -use std::fmt::Debug; - -pub fn used_function() { - // Initialize test constants in a way that cannot be determined at compile time, to ensure - // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from - // dependent conditions. - let is_true = std::env::args().len() == 1; - let mut countdown = 0; - if is_true { - countdown = 10; - } - use_this_lib_crate(); -} - -#[inline(always)] -pub fn used_inline_function() { - // Initialize test constants in a way that cannot be determined at compile time, to ensure - // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from - // dependent conditions. - let is_true = std::env::args().len() == 1; - let mut countdown = 0; - if is_true { - countdown = 10; - } - use_this_lib_crate(); -} - - - - - - - -#[inline(always)] -pub fn used_only_from_bin_crate_generic_function<T: Debug>(arg: T) { - println!("used_only_from_bin_crate_generic_function with {:?}", arg); -} -// Expect for above function: `Unexecuted instantiation` (see notes in `used_crate.rs`) - -#[inline(always)] -pub fn used_only_from_this_lib_crate_generic_function<T: Debug>(arg: T) { - println!("used_only_from_this_lib_crate_generic_function with {:?}", arg); -} - -#[inline(always)] -pub fn used_from_bin_crate_and_lib_crate_generic_function<T: Debug>(arg: T) { - println!("used_from_bin_crate_and_lib_crate_generic_function with {:?}", arg); -} - -#[inline(always)] -pub fn used_with_same_type_from_bin_crate_and_lib_crate_generic_function<T: Debug>(arg: T) { - println!("used_with_same_type_from_bin_crate_and_lib_crate_generic_function with {:?}", arg); -} - -#[inline(always)] -pub fn unused_generic_function<T: Debug>(arg: T) { - println!("unused_generic_function with {:?}", arg); -} - -#[inline(always)] -pub fn unused_function() { - let is_true = std::env::args().len() == 1; - let mut countdown = 2; - if !is_true { - countdown = 20; - } -} - -#[inline(always)] -fn unused_private_function() { - let is_true = std::env::args().len() == 1; - let mut countdown = 2; - if !is_true { - countdown = 20; - } -} - -fn use_this_lib_crate() { - used_from_bin_crate_and_lib_crate_generic_function("used from library used_crate.rs"); - used_with_same_type_from_bin_crate_and_lib_crate_generic_function( - "used from library used_crate.rs", - ); - let some_vec = vec![5, 6, 7, 8]; - used_only_from_this_lib_crate_generic_function(some_vec); - used_only_from_this_lib_crate_generic_function("used ONLY from library used_crate.rs"); -} diff --git a/tests/run-make/coverage/loop_break_value.rs b/tests/run-make/coverage/loop_break_value.rs deleted file mode 100644 index dbc4fad7a..000000000 --- a/tests/run-make/coverage/loop_break_value.rs +++ /dev/null @@ -1,13 +0,0 @@ -#![allow(unused_assignments, unused_variables)] - -fn main() { - let result - = - loop - { - break - 10 - ; - } - ; -} diff --git a/tests/run-make/coverage/loops_branches.rs b/tests/run-make/coverage/loops_branches.rs deleted file mode 100644 index 7116ce47f..000000000 --- a/tests/run-make/coverage/loops_branches.rs +++ /dev/null @@ -1,61 +0,0 @@ -#![allow(unused_assignments, unused_variables, while_true)] - -// This test confirms that (1) unexecuted infinite loops are handled correctly by the -// InstrumentCoverage MIR pass; and (2) Counter Expressions that subtract from zero can be dropped. - -struct DebugTest; - -impl std::fmt::Debug for DebugTest { - fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result { - if true { - if false { - while true { - } - } - write!(f, "cool")?; - } else { - } - - for i in 0..10 { - if true { - if false { - while true {} - } - write!(f, "cool")?; - } else { - } - } - Ok(()) - } -} - -struct DisplayTest; - -impl std::fmt::Display for DisplayTest { - fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result { - if false { - } else { - if false { - while true {} - } - write!(f, "cool")?; - } - for i in 0..10 { - if false { - } else { - if false { - while true {} - } - write!(f, "cool")?; - } - } - Ok(()) - } -} - -fn main() { - let debug_test = DebugTest; - println!("{:?}", debug_test); - let display_test = DisplayTest; - println!("{}", display_test); -} diff --git a/tests/run-make/coverage/match_or_pattern.rs b/tests/run-make/coverage/match_or_pattern.rs deleted file mode 100644 index 4c6a8a9b7..000000000 --- a/tests/run-make/coverage/match_or_pattern.rs +++ /dev/null @@ -1,45 +0,0 @@ -#![feature(or_patterns)] - -fn main() { - // Initialize test constants in a way that cannot be determined at compile time, to ensure - // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from - // dependent conditions. - let is_true = std::env::args().len() == 1; - - let mut a: u8 = 0; - let mut b: u8 = 0; - if is_true { - a = 2; - b = 0; - } - match (a, b) { - // Or patterns generate MIR `SwitchInt` with multiple targets to the same `BasicBlock`. - // This test confirms a fix for Issue #79569. - (0 | 1, 2 | 3) => {} - _ => {} - } - if is_true { - a = 0; - b = 0; - } - match (a, b) { - (0 | 1, 2 | 3) => {} - _ => {} - } - if is_true { - a = 2; - b = 2; - } - match (a, b) { - (0 | 1, 2 | 3) => {} - _ => {} - } - if is_true { - a = 0; - b = 2; - } - match (a, b) { - (0 | 1, 2 | 3) => {} - _ => {} - } -} diff --git a/tests/run-make/coverage/nested_loops.rs b/tests/run-make/coverage/nested_loops.rs deleted file mode 100644 index 4c7c78427..000000000 --- a/tests/run-make/coverage/nested_loops.rs +++ /dev/null @@ -1,25 +0,0 @@ -fn main() { - let is_true = std::env::args().len() == 1; - let mut countdown = 10; - - 'outer: while countdown > 0 { - let mut a = 100; - let mut b = 100; - for _ in 0..50 { - if a < 30 { - break; - } - a -= 5; - b -= 5; - if b < 90 { - a -= 10; - if is_true { - break 'outer; - } else { - a -= 2; - } - } - } - countdown -= 1; - } -} diff --git a/tests/run-make/coverage/no_cov_crate.rs b/tests/run-make/coverage/no_cov_crate.rs deleted file mode 100644 index 0bfbdda2c..000000000 --- a/tests/run-make/coverage/no_cov_crate.rs +++ /dev/null @@ -1,86 +0,0 @@ -// Enables `no_coverage` on the entire crate -#![feature(no_coverage)] - -#[no_coverage] -fn do_not_add_coverage_1() { - println!("called but not covered"); -} - -fn do_not_add_coverage_2() { - #![no_coverage] - println!("called but not covered"); -} - -#[no_coverage] -fn do_not_add_coverage_not_called() { - println!("not called and not covered"); -} - -fn add_coverage_1() { - println!("called and covered"); -} - -fn add_coverage_2() { - println!("called and covered"); -} - -fn add_coverage_not_called() { - println!("not called but covered"); -} - -// FIXME: These test-cases illustrate confusing results of nested functions. -// See https://github.com/rust-lang/rust/issues/93319 -mod nested_fns { - #[no_coverage] - pub fn outer_not_covered(is_true: bool) { - fn inner(is_true: bool) { - if is_true { - println!("called and covered"); - } else { - println!("absolutely not covered"); - } - } - println!("called but not covered"); - inner(is_true); - } - - pub fn outer(is_true: bool) { - println!("called and covered"); - inner_not_covered(is_true); - - #[no_coverage] - fn inner_not_covered(is_true: bool) { - if is_true { - println!("called but not covered"); - } else { - println!("absolutely not covered"); - } - } - } - - pub fn outer_both_covered(is_true: bool) { - println!("called and covered"); - inner(is_true); - - fn inner(is_true: bool) { - if is_true { - println!("called and covered"); - } else { - println!("absolutely not covered"); - } - } - } -} - -fn main() { - let is_true = std::env::args().len() == 1; - - do_not_add_coverage_1(); - do_not_add_coverage_2(); - add_coverage_1(); - add_coverage_2(); - - nested_fns::outer_not_covered(is_true); - nested_fns::outer(is_true); - nested_fns::outer_both_covered(is_true); -} diff --git a/tests/run-make/coverage/overflow.rs b/tests/run-make/coverage/overflow.rs deleted file mode 100644 index e537b0e95..000000000 --- a/tests/run-make/coverage/overflow.rs +++ /dev/null @@ -1,63 +0,0 @@ -#![allow(unused_assignments)] -// expect-exit-status-101 - -fn might_overflow(to_add: u32) -> u32 { - if to_add > 5 { - println!("this will probably overflow"); - } - let add_to = u32::MAX - 5; - println!("does {} + {} overflow?", add_to, to_add); - let result = to_add + add_to; - println!("continuing after overflow check"); - result -} - -fn main() -> Result<(),u8> { - let mut countdown = 10; - while countdown > 0 { - if countdown == 1 { - let result = might_overflow(10); - println!("Result: {}", result); - } else if countdown < 5 { - let result = might_overflow(1); - println!("Result: {}", result); - } - countdown -= 1; - } - Ok(()) -} - -// Notes: -// 1. Compare this program and its coverage results to those of the very similar test `assert.rs`, -// and similar tests `panic_unwind.rs`, abort.rs` and `try_error_result.rs`. -// 2. This test confirms the coverage generated when a program passes or fails a -// compiler-generated `TerminatorKind::Assert` (based on an overflow check, in this case). -// 3. Similar to how the coverage instrumentation handles `TerminatorKind::Call`, -// compiler-generated assertion failures are assumed to be a symptom of a program bug, not -// expected behavior. To simplify the coverage graphs and keep instrumented programs as -// small and fast as possible, `Assert` terminators are assumed to always succeed, and -// therefore are considered "non-branching" terminators. So, an `Assert` terminator does not -// get its own coverage counter. -// 4. After an unhandled panic or failed Assert, coverage results may not always be intuitive. -// In this test, the final count for the statements after the `if` block in `might_overflow()` -// is 4, even though the lines after `to_add + add_to` were executed only 3 times. Depending -// on the MIR graph and the structure of the code, this count could have been 3 (which might -// have been valid for the overflowed add `+`, but should have been 4 for the lines before -// the overflow. The reason for this potential uncertainty is, a `CounterKind` is incremented -// via StatementKind::Counter at the end of the block, but (as in the case in this test), -// a CounterKind::Expression is always evaluated. In this case, the expression was based on -// a `Counter` incremented as part of the evaluation of the `if` expression, which was -// executed, and counted, 4 times, before reaching the overflow add. - -// If the program did not overflow, the coverage for `might_overflow()` would look like this: -// -// 4| |fn might_overflow(to_add: u32) -> u32 { -// 5| 4| if to_add > 5 { -// 6| 0| println!("this will probably overflow"); -// 7| 4| } -// 8| 4| let add_to = u32::MAX - 5; -// 9| 4| println!("does {} + {} overflow?", add_to, to_add); -// 10| 4| let result = to_add + add_to; -// 11| 4| println!("continuing after overflow check"); -// 12| 4| result -// 13| 4|} diff --git a/tests/run-make/coverage/panic_unwind.rs b/tests/run-make/coverage/panic_unwind.rs deleted file mode 100644 index 03128c2cc..000000000 --- a/tests/run-make/coverage/panic_unwind.rs +++ /dev/null @@ -1,31 +0,0 @@ -#![allow(unused_assignments)] -// expect-exit-status-101 - -fn might_panic(should_panic: bool) { - if should_panic { - println!("panicking..."); - panic!("panics"); - } else { - println!("Don't Panic"); - } -} - -fn main() -> Result<(), u8> { - let mut countdown = 10; - while countdown > 0 { - if countdown == 1 { - might_panic(true); - } else if countdown < 5 { - might_panic(false); - } - countdown -= 1; - } - Ok(()) -} - -// Notes: -// 1. Compare this program and its coverage results to those of the similar tests `abort.rs` and -// `try_error_result.rs`. -// 2. Since the `panic_unwind.rs` test is allowed to unwind, it is also allowed to execute the -// normal program exit cleanup, including writing out the current values of the coverage -// counters. diff --git a/tests/run-make/coverage/partial_eq.rs b/tests/run-make/coverage/partial_eq.rs deleted file mode 100644 index 4ceaba9b1..000000000 --- a/tests/run-make/coverage/partial_eq.rs +++ /dev/null @@ -1,46 +0,0 @@ -// This test confirms an earlier problem was resolved, supporting the MIR graph generated by the -// structure of this test. - -#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)] -pub struct Version { - major: usize, - minor: usize, - patch: usize, -} - -impl Version { - pub fn new(major: usize, minor: usize, patch: usize) -> Self { - Self { - major, - minor, - patch, - } - } -} - -fn main() { - let version_3_2_1 = Version::new(3, 2, 1); - let version_3_3_0 = Version::new(3, 3, 0); - - println!("{:?} < {:?} = {}", version_3_2_1, version_3_3_0, version_3_2_1 < version_3_3_0); -} - -/* - -This test verifies a bug was fixed that otherwise generated this error: - -thread 'rustc' panicked at 'No counters provided the source_hash for function: - Instance { - def: Item(WithOptConstParam { - did: DefId(0:101 ~ autocfg[c44a]::version::{impl#2}::partial_cmp), - const_param_did: None - }), - substs: [] - }' -The `PartialOrd` derived by `Version` happened to generate a MIR that generated coverage -without a code region associated with any `Counter`. Code regions were associated with at least -one expression, which is allowed, but the `function_source_hash` was only passed to the codegen -(coverage mapgen) phase from a `Counter`s code region. A new method was added to pass the -`function_source_hash` without a code region, if necessary. - -*/ diff --git a/tests/run-make/coverage/simple_loop.rs b/tests/run-make/coverage/simple_loop.rs deleted file mode 100644 index 6f7f23475..000000000 --- a/tests/run-make/coverage/simple_loop.rs +++ /dev/null @@ -1,35 +0,0 @@ -#![allow(unused_assignments)] - -fn main() { - // Initialize test constants in a way that cannot be determined at compile time, to ensure - // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from - // dependent conditions. - let is_true = std::env::args().len() == 1; - - let mut countdown = 0; - - if - is_true - { - countdown - = - 10 - ; - } - - loop - { - if - countdown - == - 0 - { - break - ; - } - countdown - -= - 1 - ; - } -} diff --git a/tests/run-make/coverage/simple_match.rs b/tests/run-make/coverage/simple_match.rs deleted file mode 100644 index be99e59a8..000000000 --- a/tests/run-make/coverage/simple_match.rs +++ /dev/null @@ -1,43 +0,0 @@ -#![allow(unused_assignments, unused_variables)] - -fn main() { - // Initialize test constants in a way that cannot be determined at compile time, to ensure - // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from - // dependent conditions. - let is_true = std::env::args().len() == 1; - - let mut countdown = 1; - if is_true { - countdown = 0; - } - - for - _ - in - 0..2 - { - let z - ; - match - countdown - { - x - if - x - < - 1 - => - { - z = countdown - ; - let y = countdown - ; - countdown = 10 - ; - } - _ - => - {} - } - } -} diff --git a/tests/run-make/coverage/sort_groups.rs b/tests/run-make/coverage/sort_groups.rs deleted file mode 100644 index f89f9f3ec..000000000 --- a/tests/run-make/coverage/sort_groups.rs +++ /dev/null @@ -1,23 +0,0 @@ -// compile-flags: --edition=2021 - -// Demonstrate that `sort_subviews.py` can sort instantiation groups into a -// predictable order, while preserving their heterogeneous contents. - -fn main() { - let cond = std::env::args().len() > 1; - generic_fn::<()>(cond); - generic_fn::<&'static str>(!cond); - if false { - generic_fn::<char>(cond); - } - generic_fn::<i32>(cond); - other_fn(); -} - -fn generic_fn<T>(cond: bool) { - if cond { - println!("{}", std::any::type_name::<T>()); - } -} - -fn other_fn() {} diff --git a/tests/run-make/coverage/test_harness.rs b/tests/run-make/coverage/test_harness.rs deleted file mode 100644 index 12a755734..000000000 --- a/tests/run-make/coverage/test_harness.rs +++ /dev/null @@ -1,10 +0,0 @@ -// Verify that the entry point injected by the test harness doesn't cause -// weird artifacts in the coverage report (e.g. issue #10749). - -// compile-flags: --test - -#[allow(dead_code)] -fn unused() {} - -#[test] -fn my_test() {} diff --git a/tests/run-make/coverage/tight_inf_loop.rs b/tests/run-make/coverage/tight_inf_loop.rs deleted file mode 100644 index cef99027a..000000000 --- a/tests/run-make/coverage/tight_inf_loop.rs +++ /dev/null @@ -1,5 +0,0 @@ -fn main() { - if false { - loop {} - } -} diff --git a/tests/run-make/coverage/try_error_result.rs b/tests/run-make/coverage/try_error_result.rs deleted file mode 100644 index cd0acf723..000000000 --- a/tests/run-make/coverage/try_error_result.rs +++ /dev/null @@ -1,118 +0,0 @@ -#![allow(unused_assignments)] -// expect-exit-status-1 - -fn call(return_error: bool) -> Result<(),()> { - if return_error { - Err(()) - } else { - Ok(()) - } -} - -fn test1() -> Result<(),()> { - let mut - countdown = 10 - ; - for - _ - in - 0..10 - { - countdown - -= 1 - ; - if - countdown < 5 - { - call(/*return_error=*/ true)?; - call(/*return_error=*/ false)?; - } - else - { - call(/*return_error=*/ false)?; - } - } - Ok(()) -} - -struct Thing1; -impl Thing1 { - fn get_thing_2(&self, return_error: bool) -> Result<Thing2,()> { - if return_error { - Err(()) - } else { - Ok(Thing2{}) - } - } -} - -struct Thing2; -impl Thing2 { - fn call(&self, return_error: bool) -> Result<u32,()> { - if return_error { - Err(()) - } else { - Ok(57) - } - } -} - -fn test2() -> Result<(),()> { - let thing1 = Thing1{}; - let mut - countdown = 10 - ; - for - _ - in - 0..10 - { - countdown - -= 1 - ; - if - countdown < 5 - { - thing1.get_thing_2(/*err=*/ false)?.call(/*err=*/ true).expect_err("call should fail"); - thing1 - . - get_thing_2(/*return_error=*/ false) - ? - . - call(/*return_error=*/ true) - . - expect_err( - "call should fail" - ); - let val = thing1.get_thing_2(/*return_error=*/ true)?.call(/*return_error=*/ true)?; - assert_eq!(val, 57); - let val = thing1.get_thing_2(/*return_error=*/ true)?.call(/*return_error=*/ false)?; - assert_eq!(val, 57); - } - else - { - let val = thing1.get_thing_2(/*return_error=*/ false)?.call(/*return_error=*/ false)?; - assert_eq!(val, 57); - let val = thing1 - .get_thing_2(/*return_error=*/ false)? - .call(/*return_error=*/ false)?; - assert_eq!(val, 57); - let val = thing1 - .get_thing_2(/*return_error=*/ false) - ? - .call(/*return_error=*/ false) - ? - ; - assert_eq!(val, 57); - } - } - Ok(()) -} - -fn main() -> Result<(),()> { - test1().expect_err("test1 should fail"); - test2() - ? - ; - Ok(()) -} diff --git a/tests/run-make/coverage/unused.rs b/tests/run-make/coverage/unused.rs deleted file mode 100644 index fb6113eb0..000000000 --- a/tests/run-make/coverage/unused.rs +++ /dev/null @@ -1,39 +0,0 @@ -fn foo<T>(x: T) { - let mut i = 0; - while i < 10 { - i != 0 || i != 0; - i += 1; - } -} - -fn unused_template_func<T>(x: T) { - let mut i = 0; - while i < 10 { - i != 0 || i != 0; - i += 1; - } -} - -fn unused_func(mut a: u32) { - if a != 0 { - a += 1; - } -} - -fn unused_func2(mut a: u32) { - if a != 0 { - a += 1; - } -} - -fn unused_func3(mut a: u32) { - if a != 0 { - a += 1; - } -} - -fn main() -> Result<(), u8> { - foo::<u32>(0); - foo::<f32>(0.0); - Ok(()) -} diff --git a/tests/run-make/coverage/unused_mod.rs b/tests/run-make/coverage/unused_mod.rs deleted file mode 100644 index 679b4e531..000000000 --- a/tests/run-make/coverage/unused_mod.rs +++ /dev/null @@ -1,6 +0,0 @@ -#[path = "lib/unused_mod_helper.rs"] -mod unused_module; - -fn main() { - println!("hello world!"); -} diff --git a/tests/run-make/coverage/uses_crate.rs b/tests/run-make/coverage/uses_crate.rs deleted file mode 100644 index 1ee8037a1..000000000 --- a/tests/run-make/coverage/uses_crate.rs +++ /dev/null @@ -1,15 +0,0 @@ -// FIXME #110395 -// ignore-llvm-cov-show-diffs - -#![allow(unused_assignments, unused_variables)] -// compile-flags: -C opt-level=3 # validates coverage now works with optimizations -extern crate used_crate; - -fn main() { - used_crate::used_function(); - let some_vec = vec![1, 2, 3, 4]; - used_crate::used_only_from_bin_crate_generic_function(&some_vec); - used_crate::used_only_from_bin_crate_generic_function("used from bin uses_crate.rs"); - used_crate::used_from_bin_crate_and_lib_crate_generic_function(some_vec); - used_crate::used_with_same_type_from_bin_crate_and_lib_crate_generic_function("interesting?"); -} diff --git a/tests/run-make/coverage/uses_inline_crate.rs b/tests/run-make/coverage/uses_inline_crate.rs deleted file mode 100644 index f7aff3c3f..000000000 --- a/tests/run-make/coverage/uses_inline_crate.rs +++ /dev/null @@ -1,20 +0,0 @@ -// FIXME #110395 -// ignore-llvm-cov-show-diffs - -#![allow(unused_assignments, unused_variables)] - -// compile-flags: -C opt-level=3 # validates coverage now works with optimizations - -extern crate used_inline_crate; - -fn main() { - used_inline_crate::used_function(); - used_inline_crate::used_inline_function(); - let some_vec = vec![1, 2, 3, 4]; - used_inline_crate::used_only_from_bin_crate_generic_function(&some_vec); - used_inline_crate::used_only_from_bin_crate_generic_function("used from bin uses_crate.rs"); - used_inline_crate::used_from_bin_crate_and_lib_crate_generic_function(some_vec); - used_inline_crate::used_with_same_type_from_bin_crate_and_lib_crate_generic_function( - "interesting?", - ); -} diff --git a/tests/run-make/coverage/while.rs b/tests/run-make/coverage/while.rs deleted file mode 100644 index 781b90b35..000000000 --- a/tests/run-make/coverage/while.rs +++ /dev/null @@ -1,5 +0,0 @@ -fn main() { - let num = 9; - while num >= 10 { - } -} diff --git a/tests/run-make/coverage/while_early_ret.rs b/tests/run-make/coverage/while_early_ret.rs deleted file mode 100644 index 1fcea9c85..000000000 --- a/tests/run-make/coverage/while_early_ret.rs +++ /dev/null @@ -1,42 +0,0 @@ -#![allow(unused_assignments)] -// expect-exit-status-1 - -fn main() -> Result<(),u8> { - let mut countdown = 10; - while - countdown - > - 0 - { - if - countdown - < - 5 - { - return - if - countdown - > - 8 - { - Ok(()) - } - else - { - Err(1) - } - ; - } - countdown - -= - 1 - ; - } - Ok(()) -} - -// ISSUE(77553): Originally, this test had `Err(1)` on line 22 (instead of `Ok(())`) and -// `std::process::exit(2)` on line 26 (instead of `Err(1)`); and this worked as expected on Linux -// and MacOS. But on Windows (MSVC, at least), the call to `std::process::exit()` exits the program -// without saving the InstrProf coverage counters. The use of `std::process:exit()` is not critical -// to the coverage test for early returns, but this is a limitation that should be fixed. diff --git a/tests/run-make/coverage/yield.rs b/tests/run-make/coverage/yield.rs deleted file mode 100644 index ff7616656..000000000 --- a/tests/run-make/coverage/yield.rs +++ /dev/null @@ -1,37 +0,0 @@ -#![feature(generators, generator_trait)] -#![allow(unused_assignments)] - -use std::ops::{Generator, GeneratorState}; -use std::pin::Pin; - -fn main() { - let mut generator = || { - yield 1; - return "foo" - }; - - match Pin::new(&mut generator).resume(()) { - GeneratorState::Yielded(1) => {} - _ => panic!("unexpected value from resume"), - } - match Pin::new(&mut generator).resume(()) { - GeneratorState::Complete("foo") => {} - _ => panic!("unexpected value from resume"), - } - - let mut generator = || { - yield 1; - yield 2; - yield 3; - return "foo" - }; - - match Pin::new(&mut generator).resume(()) { - GeneratorState::Yielded(1) => {} - _ => panic!("unexpected value from resume"), - } - match Pin::new(&mut generator).resume(()) { - GeneratorState::Yielded(2) => {} - _ => panic!("unexpected value from resume"), - } -} |