test(toml): Show underscore behavior for bin targets

Author: epage

tests/testsuite/bad_config.rs

@@ -1136,6 +1136,100 @@ fn lib_crate_type2_conflict() {
         .run();
 }
 
+#[cargo_test]
+fn bin_crate_type2() {
+    let p = project()
+        .file(
+            "Cargo.toml",
+            r#"
+                [package]
+                name = "foo"
+                version = "0.5.0"
+                edition = "2015"
+                authors = ["wycats@example.com"]
+
+                [[bin]]
+                name = "foo"
+                path = "src/main.rs"
+                crate_type = []
+            "#,
+        )
+        .file("src/main.rs", "fn main() {}")
+        .build();
+    p.cargo("check")
+        .with_stderr(
+            "\
+[CHECKING] foo v0.5.0 ([CWD])
+[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [..]s
+",
+        )
+        .run();
+}
+
+#[cargo_test(nightly, reason = "edition2024 is not stable")]
+fn bin_crate_type2_2024() {
+    let p = project()
+        .file(
+            "Cargo.toml",
+            r#"
+                cargo-features = ["edition2024"]
+
+                [package]
+                name = "foo"
+                version = "0.5.0"
+                edition = "2024"
+                authors = ["wycats@example.com"]
+
+                [[bin]]
+                name = "foo"
+                path = "src/main.rs"
+                crate_type = []
+            "#,
+        )
+        .file("src/main.rs", "fn main() {}")
+        .build();
+    p.cargo("check")
+        .masquerade_as_nightly_cargo(&["edition2024"])
+        .with_stderr(
+            "\
+[CHECKING] foo v0.5.0 ([CWD])
+[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [..]s
+",
+        )
+        .run();
+}
+
+#[cargo_test]
+fn bin_crate_type2_conflict() {
+    let p = project()
+        .file(
+            "Cargo.toml",
+            r#"
+                [package]
+                name = "foo"
+                version = "0.5.0"
+                edition = "2015"
+                authors = ["wycats@example.com"]
+
+                [[bin]]
+                name = "foo"
+                path = "src/main.rs"
+                crate_type = []
+                crate-type = []
+            "#,
+        )
+        .file("src/main.rs", "fn main() {}")
+        .build();
+    p.cargo("check")
+        .with_stderr(
+            "\
+[CHECKING] foo v0.5.0 ([CWD])
+[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [..]s
+",
+        )
+        .run();
+}
+
 #[cargo_test]
 fn examples_crate_type2() {
     let p = project()
@@ -1939,6 +2033,103 @@ fn lib_proc_macro2_conflict() {
         .run();
 }
 
+#[cargo_test]
+fn bin_proc_macro2() {
+    let foo = project()
+        .file(
+            "Cargo.toml",
+            r#"
+                [package]
+                name = "foo"
+                version = "0.5.0"
+                edition = "2015"
+                authors = ["wycats@example.com"]
+
+                [[bin]]
+                name = "foo"
+                path = "src/main.rs"
+                proc_macro = false
+            "#,
+        )
+        .file("src/main.rs", "fn main() {}")
+        .build();
+
+    foo.cargo("check")
+        .with_stderr(
+            "\
+[CHECKING] foo v0.5.0 ([CWD])
+[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [..]s
+",
+        )
+        .run();
+}
+
+#[cargo_test(nightly, reason = "edition2024 is not stable")]
+fn bin_proc_macro2_2024() {
+    let foo = project()
+        .file(
+            "Cargo.toml",
+            r#"
+                cargo-features = ["edition2024"]
+
+                [package]
+                name = "foo"
+                version = "0.5.0"
+                edition = "2015"
+                authors = ["wycats@example.com"]
+
+                [[bin]]
+                name = "foo"
+                path = "src/main.rs"
+                proc_macro = false
+            "#,
+        )
+        .file("src/main.rs", "fn main() {}")
+        .build();
+
+    foo.cargo("check")
+        .masquerade_as_nightly_cargo(&["edition2024"])
+        .with_stderr(
+            "\
+[CHECKING] foo v0.5.0 ([CWD])
+[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [..]s
+",
+        )
+        .run();
+}
+
+#[cargo_test]
+fn bin_proc_macro2_conflict() {
+    let foo = project()
+        .file(
+            "Cargo.toml",
+            r#"
+                [package]
+                name = "foo"
+                version = "0.5.0"
+                edition = "2015"
+                authors = ["wycats@example.com"]
+
+                [[bin]]
+                name = "foo"
+                path = "src/main.rs"
+                proc-macro = false
+                proc_macro = false
+            "#,
+        )
+        .file("src/main.rs", "fn main() {}")
+        .build();
+
+    foo.cargo("check")
+        .with_stderr(
+            "\
+[CHECKING] foo v0.5.0 ([CWD])
+[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [..]s
+",
+        )
+        .run();
+}
+
 #[cargo_test]
 fn invalid_toml_historically_allowed_fails() {
     let p = project()