fix(coverage): ensure coverage is only collected in certain situations (#15467)

1 files changed, 32 insertions, 0 deletions

diff --git a/cli/tests/testdata/coverage/complex_test.ts b/cli/tests/testdata/coverage/complex_test.ts
index fda948bc3..1202289cb 100644
--- a/cli/tests/testdata/coverage/complex_test.ts
+++ b/cli/tests/testdata/coverage/complex_test.ts
@@ -3,3 +3,35 @@ import { complex } from "./complex.ts";
 Deno.test("complex", function () {
   complex("foo", "bar", "baz");
 });
+
+Deno.test("sub process with stdin", async () => {
+  // ensure launching deno run with stdin doesn't affect coverage
+  const code = "console.log('5')";
+  const p = await Deno.run({
+    cmd: [Deno.execPath(), "run", "-"],
+    stdin: "piped",
+    stdout: "piped",
+  });
+  const encoder = new TextEncoder();
+  await p.stdin.write(encoder.encode(code));
+  await p.stdin.close();
+  const output = new TextDecoder().decode(await p.output());
+  p.close();
+  if (output.trim() !== "5") {
+    throw new Error("Failed");
+  }
+});
+
+Deno.test("sub process with deno eval", async () => {
+  // ensure launching deno eval doesn't affect coverage
+  const code = "console.log('5')";
+  const p = await Deno.run({
+    cmd: [Deno.execPath(), "eval", code],
+    stdout: "piped",
+  });
+  const output = new TextDecoder().decode(await p.output());
+  p.close();
+  if (output.trim() !== "5") {
+    throw new Error("Failed");
+  }
+});