test(package): add baseline tests for global metadata warnings

Author: Amberley-Sz

tests/testsuite/package.rs

@@ -7739,3 +7739,75 @@ Caused by:
 "#]])
         .run();
 }
+
+#[cargo_test]
+fn publish_to_crates_io_warns() {
+    let p = project()
+        .file(
+            "Cargo.toml",
+            r#"
+                [package]
+                name = "foo"
+                version = "0.1.0"
+                description = "foo"
+                edition = "2015"
+            "#,
+        )
+        .file("src/main.rs", "fn main() {}")
+        .build();
+
+    p.cargo(&format!("publish --dry-run"))
+        .with_stderr_data(str![[r#"
+[UPDATING] crates.io index
+[WARNING] manifest has no license, license-file, documentation, homepage or repository
+  |
+  = [NOTE] see https://doc.rust-lang.org/cargo/reference/manifest.html#package-metadata for more info
+[PACKAGING] foo v0.1.0 ([ROOT]/foo)
+[PACKAGED] 4 files, [FILE_SIZE]B ([FILE_SIZE]B compressed)
+[VERIFYING] foo v0.1.0 ([ROOT]/foo)
+[COMPILING] foo v0.1.0 ([ROOT]/foo/target/package/foo-0.1.0)
+[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
+[UPLOADING] foo v0.1.0 ([ROOT]/foo)
+[WARNING] aborting upload due to dry run
+
+"#]])
+        .run();
+}
+
+#[cargo_test]
+fn publish_to_alt_registry_warns() {
+    let _alt_reg = registry::RegistryBuilder::new().alternative().build();
+
+    let p = project()
+        .file(
+            "Cargo.toml",
+            r#"
+                [package]
+                name = "foo"
+                version = "0.1.0"
+                description = "foo"
+                edition = "2015"
+                publish = ["alternative"]
+            "#,
+        )
+        .file("src/main.rs", "fn main() {}")
+        .build();
+
+    // There will be no warnings for alternative registry in the next commit
+    p.cargo("publish --dry-run --registry alternative")
+        .with_stderr_data(str![[r#"
+[UPDATING] `alternative` index
+[WARNING] manifest has no license, license-file, documentation, homepage or repository
+  |
+  = [NOTE] see https://doc.rust-lang.org/cargo/reference/manifest.html#package-metadata for more info
+[PACKAGING] foo v0.1.0 ([ROOT]/foo)
+[PACKAGED] 4 files, [FILE_SIZE]B ([FILE_SIZE]B compressed)
+[VERIFYING] foo v0.1.0 ([ROOT]/foo)
+[COMPILING] foo v0.1.0 ([ROOT]/foo/target/package/foo-0.1.0)
+[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
+[UPLOADING] foo v0.1.0 ([ROOT]/foo)
+[WARNING] aborting upload due to dry run
+
+"#]])
+        .run();
+}