add test coverage

Signed-off-by: onur-ozkan <work@onurozkan.dev>

src/bootstrap/src/core/builder/tests.rs

@@ -1,9 +1,9 @@
 use std::thread;
 
 use super::*;
-use crate::Flags;
 use crate::core::build_steps::doc::DocumentationFormat;
 use crate::core::config::Config;
+use crate::{Flags, Mode};
 
 static TEST_TRIPLE_1: &str = "i686-unknown-haiku";
 static TEST_TRIPLE_2: &str = "i686-unknown-hurd-gnu";
@@ -861,3 +861,50 @@ fn test_test_coverage() {
         assert_eq!(modes, expected);
     }
 }
+
+#[test]
+fn test_release_directory() {
+    let config = Config::parse_inner(
+        Flags::parse(&["check".into(), "--config=/does/not/exist".into()]),
+        |&_| toml::from_str(""),
+    );
+    let build = Build::new(config.clone());
+    let builder = Builder::new(&build);
+
+    assert_eq!(builder.cargo_dir(&Mode::Rustc), "release");
+    assert_eq!(builder.cargo_dir(&Mode::ToolStd), "debug");
+
+    let config = Config::parse_inner(
+        Flags::parse(&["check".into(), "--config=/does/not/exist".into(), "--release".into()]),
+        |&_| {
+            toml::from_str(
+                r#"
+            [rust]
+            optimize = false
+        "#,
+            )
+        },
+    );
+    let build = Build::new(config.clone());
+    let builder = Builder::new(&build);
+
+    assert_eq!(builder.cargo_dir(&Mode::Std), "release");
+    assert_eq!(builder.cargo_dir(&Mode::ToolBootstrap), "release");
+
+    let config = Config::parse_inner(
+        Flags::parse(&["check".into(), "--config=/does/not/exist".into()]),
+        |&_| {
+            toml::from_str(
+                r#"
+            [rust]
+            optimize = false
+        "#,
+            )
+        },
+    );
+    let build = Build::new(config.clone());
+    let builder = Builder::new(&build);
+
+    assert_eq!(builder.cargo_dir(&Mode::Rustc), "debug");
+    assert_eq!(builder.cargo_dir(&Mode::Codegen), "debug");
+}

src/bootstrap/src/core/config/config.rs

@@ -1356,7 +1356,7 @@ impl Config {
         config.llvm_profile_generate = flags.llvm_profile_generate;
         config.enable_bolt_settings = flags.enable_bolt_settings;
         config.bypass_bootstrap_lock = flags.bypass_bootstrap_lock;
-        config.enable_release_build = flags.release || CiEnv::is_ci();
+        config.enable_release_build = flags.release || (CiEnv::is_ci() && !cfg!(test));
 
         // Infer the rest of the configuration.
 

src/bootstrap/src/core/config/tests.rs

@@ -454,3 +454,36 @@ fn check_rustc_if_unchanged_paths() {
         assert!(config.src.join(p).exists(), "{p} doesn't exist.");
     }
 }
+
+#[test]
+fn test_release_options() {
+    let config = Config::parse_inner(
+        Flags::parse(&["check".into(), "--config=/does/not/exist".into()]),
+        |&_| {
+            toml::from_str(
+                r#"
+            [rust]
+            optimize = false
+        "#,
+            )
+        },
+    );
+
+    assert!(!config.enable_release_build);
+    assert!(!config.rust_optimize.is_release());
+
+    let config = Config::parse_inner(
+        Flags::parse(&["check".into(), "--config=/does/not/exist".into(), "--release".into()]),
+        |&_| {
+            toml::from_str(
+                r#"
+            [rust]
+            optimize = false
+        "#,
+            )
+        },
+    );
+
+    assert!(config.enable_release_build);
+    assert!(config.rust_optimize.is_release());
+}