2 files changed, 28 insertions, 0 deletions
diff --git a/src/tools/rustfmt/check_diff/tests/bash_commands.rs b/src/tools/rustfmt/check_diff/tests/bash_commands.rs
new file mode 100644
index 00000000000..38ee34ef503
--- /dev/null
+++ b/src/tools/rustfmt/check_diff/tests/bash_commands.rs
@@ -0,0 +1,12 @@
+use check_diff::change_directory_to_path;
+use std::env;
+use tempfile::Builder;
+
+#[test]
+fn cd_test() {
+    // Creates an empty directory in the current working directory
+    let dir = Builder::new().tempdir_in("").unwrap();
+    let dest_path = dir.path();
+    change_directory_to_path(dest_path).unwrap();
+    assert_eq!(env::current_dir().unwrap(), dest_path);
+}
diff --git a/src/tools/rustfmt/check_diff/tests/git.rs b/src/tools/rustfmt/check_diff/tests/git.rs
new file mode 100644
index 00000000000..677c3840e1e
--- /dev/null
+++ b/src/tools/rustfmt/check_diff/tests/git.rs
@@ -0,0 +1,16 @@
+use check_diff::clone_git_repo;
+
+use tempfile::Builder;
+
+#[test]
+fn clone_repo_test() {
+    // Creates an empty directory in the current working directory
+    let dir = Builder::new().tempdir_in("").unwrap();
+    let sample_repo = "https://github.com/rust-lang/rustfmt.git";
+    let dest_path = dir.path();
+    let result = clone_git_repo(sample_repo, dest_path);
+    assert!(result.is_ok());
+    // check whether a .git folder exists after cloning the repo
+    let git_repo = dest_path.join(".git");
+    assert!(git_repo.exists());
+}