New upstream version 1.52.1+dfsg1

[rustc.git] / vendor / compiletest_rs / tests / bless.rs

diff --git a/vendor/compiletest_rs/tests/bless.rs b/vendor/compiletest_rs/tests/bless.rs
new file mode 100644 (file)
index 0000000..9ee26f4
--- /dev/null
+++ b/vendor/compiletest_rs/tests/bless.rs
@@ -0,0 +1,85 @@
+//! Tests for the `bless` option
+
+extern crate compiletest_rs as compiletest;
+
+mod test_support;
+use test_support::{testsuite, TestsuiteBuilder, GLOBAL_ROOT};
+use compiletest::Config;
+
+fn setup(mode: &str) -> (Config, TestsuiteBuilder) {
+    let builder = testsuite(mode);
+    let mut config = Config::default();
+    let cfg_mode = mode.parse().expect("Invalid mode");
+    config.mode = cfg_mode;
+    config.src_base = builder.root.clone();
+    config.build_base = GLOBAL_ROOT.join("build_base");
+
+    (config, builder)
+}
+
+#[test]
+fn test_bless_new_file() {
+    let (mut config, builder) = setup("ui");
+    config.bless = true;
+
+    builder.mk_file(
+              "foobar.rs",
+              r#"
+                  #[warn(unused_variables)]
+                  fn main() {
+                      let abc = "foobar";
+                  }
+              "#,
+          );
+    compiletest::run_tests(&config);
+
+    // Blessing should cause the stderr to be created directly
+    assert!(builder.file_contents("foobar.stderr").contains("unused variable"));
+
+    // And a second run of the tests, with blessing disabled should work just fine
+    config.bless = false;
+    compiletest::run_tests(&config);
+}
+
+#[test]
+fn test_bless_update_file() {
+    let (mut config, builder) = setup("ui");
+    config.bless = true;
+
+    builder.mk_file(
+        "foobar2.rs",
+        r#"
+            #[warn(unused_variables)]
+            fn main() {
+                let abc = "foobar_update";
+            }
+        "#,
+    );
+    builder.mk_file(
+        "foobar2.stderr",
+        r#"
+            warning: unused variable: `abc`
+             --> $DIR/foobar2.rs:4:27
+              |
+            4 |                       let abc = "foobar";
+              |                           ^^^ help: if this is intentional, prefix it with an underscore: `_abc`
+              |
+            note: the lint level is defined here
+             --> $DIR/foobar2.rs:2:26
+              |
+            2 |                   #[warn(unused_variables)]
+              |                          ^^^^^^^^^^^^^^^^
+
+            warning: 1 warning emitted
+        "#,
+    );
+    compiletest::run_tests(&config);
+
+    // Blessing should cause the stderr to be created directly
+    assert!(builder.file_contents("foobar2.stderr").contains("unused variable"));
+    assert!(builder.file_contents("foobar2.stderr").contains("foobar_update"));
+
+    // And a second run of the tests, with blessing disabled should work just fine
+    config.bless = false;
+    compiletest::run_tests(&config);
+}