8 files changed, 128 insertions, 0 deletions
diff --git a/src/test/ui/meta/auxiliary/env.rs b/src/test/ui/meta/auxiliary/env.rs
new file mode 100644
index 000000000..b3644d8d5
--- /dev/null
+++ b/src/test/ui/meta/auxiliary/env.rs
@@ -0,0 +1,9 @@
+// Check that aux builds can also use rustc-env, but environment is configured
+// separately from the main test case.
+//
+// rustc-env:COMPILETEST_BAR=bar
+
+pub fn test() {
+    assert_eq!(option_env!("COMPILETEST_FOO"), None);
+    assert_eq!(env!("COMPILETEST_BAR"), "bar");
+}
diff --git a/src/test/ui/meta/expected-error-correct-rev.a.stderr b/src/test/ui/meta/expected-error-correct-rev.a.stderr
new file mode 100644
index 000000000..4adeebe2a
--- /dev/null
+++ b/src/test/ui/meta/expected-error-correct-rev.a.stderr
@@ -0,0 +1,16 @@
+error[E0308]: mismatched types
+  --> $DIR/expected-error-correct-rev.rs:7:18
+   |
+LL |     let x: u32 = 22_usize;
+   |            ---   ^^^^^^^^ expected `u32`, found `usize`
+   |            |
+   |            expected due to this
+   |
+help: change the type of the numeric literal from `usize` to `u32`
+   |
+LL |     let x: u32 = 22_u32;
+   |                     ~~~
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0308`.
diff --git a/src/test/ui/meta/expected-error-correct-rev.rs b/src/test/ui/meta/expected-error-correct-rev.rs
new file mode 100644
index 000000000..26798c3df
--- /dev/null
+++ b/src/test/ui/meta/expected-error-correct-rev.rs
@@ -0,0 +1,10 @@
+// revisions: a
+
+// Counterpart to `expected-error-wrong-rev.rs`
+
+#[cfg(a)]
+fn foo() {
+    let x: u32 = 22_usize; //[a]~ ERROR mismatched types
+}
+
+fn main() { }
diff --git a/src/test/ui/meta/meta-expected-error-wrong-rev.a.stderr b/src/test/ui/meta/meta-expected-error-wrong-rev.a.stderr
new file mode 100644
index 000000000..87330155e
--- /dev/null
+++ b/src/test/ui/meta/meta-expected-error-wrong-rev.a.stderr
@@ -0,0 +1,16 @@
+error[E0308]: mismatched types
+  --> $DIR/meta-expected-error-wrong-rev.rs:13:18
+   |
+LL |     let x: u32 = 22_usize;
+   |            ---   ^^^^^^^^ expected `u32`, found `usize`
+   |            |
+   |            expected due to this
+   |
+help: change the type of the numeric literal from `usize` to `u32`
+   |
+LL |     let x: u32 = 22_u32;
+   |                     ~~~
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0308`.
diff --git a/src/test/ui/meta/meta-expected-error-wrong-rev.rs b/src/test/ui/meta/meta-expected-error-wrong-rev.rs
new file mode 100644
index 000000000..c30d4fe0a
--- /dev/null
+++ b/src/test/ui/meta/meta-expected-error-wrong-rev.rs
@@ -0,0 +1,16 @@
+// ignore-compare-mode-polonius
+
+// revisions: a
+// should-fail
+
+// This is a "meta-test" of the compilertest framework itself.  In
+// particular, it includes the right error message, but the message
+// targets the wrong revision, so we expect the execution to fail.
+// See also `meta-expected-error-correct-rev.rs`.
+
+#[cfg(a)]
+fn foo() {
+    let x: u32 = 22_usize; //[b]~ ERROR mismatched types
+}
+
+fn main() { }
diff --git a/src/test/ui/meta/revision-bad.rs b/src/test/ui/meta/revision-bad.rs
new file mode 100644
index 000000000..37ddbe99a
--- /dev/null
+++ b/src/test/ui/meta/revision-bad.rs
@@ -0,0 +1,22 @@
+// Meta test for compiletest: check that when we give the wrong error
+// patterns, the test fails.
+
+// run-fail
+// revisions: foo bar
+// should-fail
+// needs-run-enabled
+//[foo] error-pattern:bar
+//[bar] error-pattern:foo
+
+#[cfg(foo)]
+fn die() {
+    panic!("foo");
+}
+#[cfg(bar)]
+fn die() {
+    panic!("bar");
+}
+
+fn main() {
+    die();
+}
diff --git a/src/test/ui/meta/revision-ok.rs b/src/test/ui/meta/revision-ok.rs
new file mode 100644
index 000000000..bbeae41b8
--- /dev/null
+++ b/src/test/ui/meta/revision-ok.rs
@@ -0,0 +1,21 @@
+// Meta test for compiletest: check that when we give the right error
+// patterns, the test passes. See all `revision-bad.rs`.
+
+// run-fail
+// revisions: foo bar
+//[foo] error-pattern:foo
+//[bar] error-pattern:bar
+// ignore-emscripten no processes
+
+#[cfg(foo)]
+fn die() {
+    panic!("foo");
+}
+#[cfg(bar)]
+fn die() {
+    panic!("bar");
+}
+
+fn main() {
+    die();
+}
diff --git a/src/test/ui/meta/rustc-env.rs b/src/test/ui/meta/rustc-env.rs
new file mode 100644
index 000000000..7d4e005be
--- /dev/null
+++ b/src/test/ui/meta/rustc-env.rs
@@ -0,0 +1,18 @@
+// Compiletest meta test checking that rustc-env and unset-rustc-env directives
+// can be used to configure environment for rustc.
+//
+// run-pass
+// aux-build:env.rs
+// rustc-env:COMPILETEST_FOO=foo
+//
+// An environment variable that is likely to be set, but should be safe to unset.
+// unset-rustc-env:PWD
+
+extern crate env;
+
+fn main() {
+    assert_eq!(env!("COMPILETEST_FOO"), "foo");
+    assert_eq!(option_env!("COMPILETEST_BAR"), None);
+    assert_eq!(option_env!("PWD"), None);
+    env::test();
+}