refactor(std/example): Inconsistencies in the example tests (#7684)

1 files changed, 22 insertions, 0 deletions

diff --git a/std/examples/welcome_test.ts b/std/examples/welcome_test.ts
new file mode 100644
index 000000000..626527bca
--- /dev/null
+++ b/std/examples/welcome_test.ts
@@ -0,0 +1,22 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
+import { assertStrictEquals } from "../testing/asserts.ts";
+import { dirname, fromFileUrl } from "../path/mod.ts";
+
+const moduleDir = dirname(fromFileUrl(import.meta.url));
+
+Deno.test("[examples/welcome] print a welcome message", async () => {
+  const decoder = new TextDecoder();
+  const process = Deno.run({
+    cmd: [Deno.execPath(), "run", "welcome.ts"],
+    cwd: moduleDir,
+    stdout: "piped",
+  });
+  try {
+    const output = await process.output();
+    const actual = decoder.decode(output).trim();
+    const expected = "Welcome to Deno 🦕";
+    assertStrictEquals(actual, expected);
+  } finally {
+    process.close();
+  }
+});