1 files changed, 103 insertions, 0 deletions
diff --git a/cli/js/file_test.ts b/cli/js/file_test.ts
new file mode 100644
index 000000000..345dcd8fe
--- /dev/null
+++ b/cli/js/file_test.ts
@@ -0,0 +1,103 @@
+// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
+import { test, assert, assertEquals } from "./test_util.ts";
+
+function testFirstArgument(arg1, expectedSize): void {
+  const file = new File(arg1, "name");
+  assert(file instanceof File);
+  assertEquals(file.name, "name");
+  assertEquals(file.size, expectedSize);
+  assertEquals(file.type, "");
+}
+
+test(function fileEmptyFileBits(): void {
+  testFirstArgument([], 0);
+});
+
+test(function fileStringFileBits(): void {
+  testFirstArgument(["bits"], 4);
+});
+
+test(function fileUnicodeStringFileBits(): void {
+  testFirstArgument(["𝓽𝓮𝔁𝓽"], 16);
+});
+
+test(function fileStringObjectFileBits(): void {
+  testFirstArgument([new String("string object")], 13);
+});
+
+test(function fileEmptyBlobFileBits(): void {
+  testFirstArgument([new Blob()], 0);
+});
+
+test(function fileBlobFileBits(): void {
+  testFirstArgument([new Blob(["bits"])], 4);
+});
+
+test(function fileEmptyFileFileBits(): void {
+  testFirstArgument([new File([], "world.txt")], 0);
+});
+
+test(function fileFileFileBits(): void {
+  testFirstArgument([new File(["bits"], "world.txt")], 4);
+});
+
+test(function fileArrayBufferFileBits(): void {
+  testFirstArgument([new ArrayBuffer(8)], 8);
+});
+
+test(function fileTypedArrayFileBits(): void {
+  testFirstArgument([new Uint8Array([0x50, 0x41, 0x53, 0x53])], 4);
+});
+
+test(function fileVariousFileBits(): void {
+  testFirstArgument(
+    [
+      "bits",
+      new Blob(["bits"]),
+      new Blob(),
+      new Uint8Array([0x50, 0x41]),
+      new Uint16Array([0x5353]),
+      new Uint32Array([0x53534150])
+    ],
+    16
+  );
+});
+
+test(function fileNumberInFileBits(): void {
+  testFirstArgument([12], 2);
+});
+
+test(function fileArrayInFileBits(): void {
+  testFirstArgument([[1, 2, 3]], 5);
+});
+
+test(function fileObjectInFileBits(): void {
+  // "[object Object]"
+  testFirstArgument([{}], 15);
+});
+
+function testSecondArgument(arg2, expectedFileName): void {
+  const file = new File(["bits"], arg2);
+  assert(file instanceof File);
+  assertEquals(file.name, expectedFileName);
+}
+
+test(function fileUsingFileName(): void {
+  testSecondArgument("dummy", "dummy");
+});
+
+test(function fileUsingSpecialCharacterInFileName(): void {
+  testSecondArgument("dummy/foo", "dummy:foo");
+});
+
+test(function fileUsingNullFileName(): void {
+  testSecondArgument(null, "null");
+});
+
+test(function fileUsingNumberFileName(): void {
+  testSecondArgument(1, "1");
+});
+
+test(function fileUsingEmptyStringFileName(): void {
+  testSecondArgument("", "");
+});