1 files changed, 86 insertions, 0 deletions
diff --git a/third_party/rust/clap/clap-test.rs b/third_party/rust/clap/clap-test.rs
new file mode 100644
index 0000000000..3e01edee83
--- /dev/null
+++ b/third_party/rust/clap/clap-test.rs
@@ -0,0 +1,86 @@
+#[allow(unused_imports, dead_code)]
+mod test {
+    use std::str;
+    use std::io::{Cursor, Write};
+
+    use regex::Regex;
+
+    use clap::{App, Arg, SubCommand, ArgGroup};
+
+    fn compare<S, S2>(l: S, r: S2) -> bool
+        where S: AsRef<str>,
+              S2: AsRef<str>
+    {
+        let re = Regex::new("\x1b[^m]*m").unwrap();
+        // Strip out any mismatching \r character on windows that might sneak in on either side
+        let ls = l.as_ref().trim().replace("\r", "");
+        let rs = r.as_ref().trim().replace("\r", "");
+        let left = re.replace_all(&*ls, "");
+        let right = re.replace_all(&*rs, "");
+        let b = left == right;
+        if !b {
+            println!("");
+            println!("--> left");
+            println!("{}", left);
+            println!("--> right");
+            println!("{}", right);
+            println!("--")
+        }
+        b
+    }
+
+    pub fn compare_output(l: App, args: &str, right: &str, stderr: bool) -> bool {
+        let mut buf = Cursor::new(Vec::with_capacity(50));
+        let res = l.get_matches_from_safe(args.split(' ').collect::<Vec<_>>());
+        let err = res.unwrap_err();
+        err.write_to(&mut buf).unwrap();
+        let content = buf.into_inner();
+        let left = String::from_utf8(content).unwrap();
+        assert_eq!(stderr, err.use_stderr());
+        compare(left, right)
+    }
+    pub fn compare_output2(l: App, args: &str, right1: &str, right2: &str, stderr: bool) -> bool {
+        let mut buf = Cursor::new(Vec::with_capacity(50));
+        let res = l.get_matches_from_safe(args.split(' ').collect::<Vec<_>>());
+        let err = res.unwrap_err();
+        err.write_to(&mut buf).unwrap();
+        let content = buf.into_inner();
+        let left = String::from_utf8(content).unwrap();
+        assert_eq!(stderr, err.use_stderr());
+        compare(&*left, right1) || compare(&*left, right2)
+    }
+
+    // Legacy tests from the pyhton script days
+
+    pub fn complex_app() -> App<'static, 'static> {
+        let args = "-o --option=[opt]... 'tests options'
+                    [positional] 'tests positionals'";
+        let opt3_vals = ["fast", "slow"];
+        let pos3_vals = ["vi", "emacs"];
+        App::new("clap-test")
+            .version("v1.4.8")
+            .about("tests clap library")
+            .author("Kevin K. <kbknapp@gmail.com>")
+            .args_from_usage(args)
+            .arg(Arg::from_usage("-f --flag... 'tests flags'")
+                .global(true))
+            .args(&[
+                Arg::from_usage("[flag2] -F 'tests flags with exclusions'").conflicts_with("flag").requires("long-option-2"),
+                Arg::from_usage("--long-option-2 [option2] 'tests long options with exclusions'").conflicts_with("option").requires("positional2"),
+                Arg::from_usage("[positional2] 'tests positionals with exclusions'"),
+                Arg::from_usage("-O --Option [option3] 'specific vals'").possible_values(&opt3_vals),
+                Arg::from_usage("[positional3]... 'tests specific values'").possible_values(&pos3_vals),
+                Arg::from_usage("--multvals [one] [two] 'Tests mutliple values, not mult occs'"),
+                Arg::from_usage("--multvalsmo... [one] [two] 'Tests mutliple values, and mult occs'"),
+                Arg::from_usage("--minvals2 [minvals]... 'Tests 2 min vals'").min_values(2),
+                Arg::from_usage("--maxvals3 [maxvals]... 'Tests 3 max vals'").max_values(3)
+            ])
+            .subcommand(SubCommand::with_name("subcmd")
+                                    .about("tests subcommands")
+                                    .version("0.1")
+                                    .author("Kevin K. <kbknapp@gmail.com>")
+                                    .arg_from_usage("-o --option [scoption]... 'tests options'")
+                                    .arg_from_usage("-s --subcmdarg [subcmdarg] 'tests other args'")
+                                    .arg_from_usage("[scpositional] 'tests positionals'"))
+    }
+}