1 files changed, 76 insertions, 0 deletions
diff --git a/src/tools/cargo/tests/testsuite/locate_project.rs b/src/tools/cargo/tests/testsuite/locate_project.rs
new file mode 100644
index 000000000..7e8ceb4c6
--- /dev/null
+++ b/src/tools/cargo/tests/testsuite/locate_project.rs
@@ -0,0 +1,76 @@
+//! Tests for the `cargo locate-project` command.
+
+use cargo_test_support::project;
+
+#[cargo_test]
+fn simple() {
+    let p = project().build();
+
+    p.cargo("locate-project")
+        .with_json(r#"{"root": "[ROOT]/foo/Cargo.toml"}"#)
+        .run();
+}
+
+#[cargo_test]
+fn message_format() {
+    let p = project().build();
+
+    p.cargo("locate-project --message-format plain")
+        .with_stdout("[ROOT]/foo/Cargo.toml")
+        .run();
+
+    p.cargo("locate-project --message-format json")
+        .with_json(r#"{"root": "[ROOT]/foo/Cargo.toml"}"#)
+        .run();
+
+    p.cargo("locate-project --message-format cryptic")
+        .with_stderr("error: invalid message format specifier: `cryptic`")
+        .with_status(101)
+        .run();
+}
+
+#[cargo_test]
+fn workspace() {
+    let p = project()
+        .file(
+            "Cargo.toml",
+            r#"
+                [package]
+                name = "outer"
+                version = "0.0.0"
+
+                [workspace]
+                members = ["inner"]
+            "#,
+        )
+        .file("src/main.rs", "fn main() {}")
+        .file(
+            "inner/Cargo.toml",
+            r#"
+                [package]
+                name = "inner"
+                version = "0.0.0"
+            "#,
+        )
+        .file("inner/src/lib.rs", "")
+        .build();
+
+    let outer_manifest = r#"{"root": "[ROOT]/foo/Cargo.toml"}"#;
+    let inner_manifest = r#"{"root": "[ROOT]/foo/inner/Cargo.toml"}"#;
+
+    p.cargo("locate-project").with_json(outer_manifest).run();
+
+    p.cargo("locate-project")
+        .cwd("inner")
+        .with_json(inner_manifest)
+        .run();
+
+    p.cargo("locate-project --workspace")
+        .with_json(outer_manifest)
+        .run();
+
+    p.cargo("locate-project --workspace")
+        .cwd("inner")
+        .with_json(outer_manifest)
+        .run();
+}