add copyFile & copyFileSync to std/node/fs (#4726)

1 files changed, 33 insertions, 0 deletions

diff --git a/std/node/_fs/_fs_copy_test.ts b/std/node/_fs/_fs_copy_test.ts
new file mode 100644
index 000000000..45e7e9372
--- /dev/null
+++ b/std/node/_fs/_fs_copy_test.ts
@@ -0,0 +1,33 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
+import { copyFile, copyFileSync } from "./_fs_copy.ts";
+import { existsSync } from "./_fs_exists.ts";
+
+import { assert } from "../../testing/asserts.ts";
+const { test } = Deno;
+
+const destFile = "./destination.txt";
+
+test({
+  name: "[std/node/fs] copy file",
+  fn: async () => {
+    const srouceFile = Deno.makeTempFileSync();
+    const err = await new Promise((resolve) => {
+      copyFile(srouceFile, destFile, (err: Error | undefined) => resolve(err));
+    });
+    assert(!err);
+    assert(existsSync(destFile));
+    Deno.removeSync(srouceFile);
+    Deno.removeSync(destFile);
+  },
+});
+
+test({
+  name: "[std/node/fs] copy file sync",
+  fn: () => {
+    const srouceFile = Deno.makeTempFileSync();
+    copyFileSync(srouceFile, destFile);
+    assert(existsSync(destFile));
+    Deno.removeSync(srouceFile);
+    Deno.removeSync(destFile);
+  },
+});