1 files changed, 49 insertions, 0 deletions
diff --git a/tools/util_test.ts b/tools/util_test.ts
new file mode 100644
index 000000000..79868b440
--- /dev/null
+++ b/tools/util_test.ts
@@ -0,0 +1,49 @@
+// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
+import { test, assertEqual } from "../js/test_util.ts";
+import { findFiles } from "./util.ts";
+
+const testDir = "tools/testdata/find_files_testdata";
+
+// Sorts and replace backslashes with slashes.
+const normalize = files => files.map(f => f.replace(/\\/g, "/")).sort();
+
+test(function testFindFiles() {
+  const files = findFiles([testDir], [".ts", ".md"]);
+  assertEqual(normalize(files), [
+    `${testDir}/bar.md`,
+    `${testDir}/bar.ts`,
+    `${testDir}/foo.md`,
+    `${testDir}/foo.ts`,
+    `${testDir}/subdir0/bar.ts`,
+    `${testDir}/subdir0/foo.ts`,
+    `${testDir}/subdir0/subdir0/bar.ts`,
+    `${testDir}/subdir0/subdir0/foo.ts`,
+    `${testDir}/subdir1/bar.ts`,
+    `${testDir}/subdir1/foo.ts`
+  ]);
+});
+
+test(function testFindFilesDepth() {
+  const files = findFiles([testDir], [".ts", ".md"], { depth: 1 });
+  assertEqual(normalize(files), [
+    `${testDir}/bar.md`,
+    `${testDir}/bar.ts`,
+    `${testDir}/foo.md`,
+    `${testDir}/foo.ts`
+  ]);
+});
+
+test(function testFindFilesSkip() {
+  const files = findFiles([testDir], [".ts", ".md"], {
+    skip: ["foo.md", "subdir1"]
+  });
+  assertEqual(normalize(files), [
+    `${testDir}/bar.md`,
+    `${testDir}/bar.ts`,
+    `${testDir}/foo.ts`,
+    `${testDir}/subdir0/bar.ts`,
+    `${testDir}/subdir0/foo.ts`,
+    `${testDir}/subdir0/subdir0/bar.ts`,
+    `${testDir}/subdir0/subdir0/foo.ts`
+  ]);
+});