feat(std/node): add fs.mkdir functions and fs.exists tests (#4660)

1 files changed, 26 insertions, 0 deletions

diff --git a/std/node/_fs/_fs_exists_test.ts b/std/node/_fs/_fs_exists_test.ts
new file mode 100644
index 000000000..aaf26a0e7
--- /dev/null
+++ b/std/node/_fs/_fs_exists_test.ts
@@ -0,0 +1,26 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
+
+import { assertEquals } from "../../testing/asserts.ts";
+import { exists, existsSync } from "./_fs_exists.ts";
+
+const { test } = Deno;
+
+test(async function existsFile() {
+  const availableFile = await new Promise(async (resolve) => {
+    const tmpFilePath = await Deno.makeTempFile();
+    exists(tmpFilePath, (exists: boolean) => resolve(exists));
+    Deno.remove(tmpFilePath);
+  });
+  const notAvailableFile = await new Promise((resolve) => {
+    exists("./notAvailable.txt", (exists: boolean) => resolve(exists));
+  });
+  assertEquals(availableFile, true);
+  assertEquals(notAvailableFile, false);
+});
+
+test(function existsSyncFile() {
+  const tmpFilePath = Deno.makeTempFileSync();
+  assertEquals(existsSync(tmpFilePath), true);
+  Deno.removeSync(tmpFilePath);
+  assertEquals(existsSync("./notAvailable.txt"), false);
+});