fix(test/coverage): exclude test files (#18748)

Fixes: #18454

1 files changed, 6 insertions, 0 deletions

diff --git a/cli/tests/testdata/coverage/no_tests_included/foo.test.js b/cli/tests/testdata/coverage/no_tests_included/foo.test.js
new file mode 100644
index 000000000..06b13d743
--- /dev/null
+++ b/cli/tests/testdata/coverage/no_tests_included/foo.test.js
@@ -0,0 +1,6 @@
+import { addNumbers } from "./foo.ts";
+import { assertEquals } from "https://deno.land/std@0.183.0/testing/asserts.ts";
+
+Deno.test("addNumbers works", () => {
+  assertEquals(addNumbers(1, 2), 3);
+});