3 files changed, 20 insertions, 0 deletions
diff --git a/tests/specs/lint/default_ts/__test__.jsonc b/tests/specs/lint/default_ts/__test__.jsonc
new file mode 100644
index 000000000..ff0f342ab
--- /dev/null
+++ b/tests/specs/lint/default_ts/__test__.jsonc
@@ -0,0 +1,18 @@
+{
+  "tempDir": true,
+  "tests": {
+    "stdin": {
+      "args": "lint -",
+      "input": "const _x: string = \"foo\";",
+      "output": "Checked 1 file\n"
+    },
+    "ext_flag": {
+      "args": "lint --ext=ts as_ts.js",
+      "output": "Checked 1 file\n"
+    },
+    "extensionless": {
+      "args": "lint extensionless",
+      "output": "Checked 1 file\n"
+    }
+  }
+}
diff --git a/tests/specs/lint/default_ts/as_ts.js b/tests/specs/lint/default_ts/as_ts.js
new file mode 100644
index 000000000..3508e99b6
--- /dev/null
+++ b/tests/specs/lint/default_ts/as_ts.js
@@ -0,0 +1 @@
+const _x: string = "foo";
diff --git a/tests/specs/lint/default_ts/extensionless b/tests/specs/lint/default_ts/extensionless
new file mode 100644
index 000000000..3508e99b6
--- /dev/null
+++ b/tests/specs/lint/default_ts/extensionless
@@ -0,0 +1 @@
+const _x: string = "foo";