feat: add deno.makeTempDir

1 files changed, 67 insertions, 0 deletions

diff --git a/js/make_temp_dir_test.ts b/js/make_temp_dir_test.ts
new file mode 100644
index 000000000..082c1e65d
--- /dev/null
+++ b/js/make_temp_dir_test.ts
@@ -0,0 +1,67 @@
+// Copyright 2018 the Deno authors. All rights reserved. MIT license.
+import { test, testPerm, assert, assertEqual } from "./test_util.ts";
+import * as deno from "deno";
+
+testPerm({ write: true }, function makeTempDirSyncSuccess() {
+  const dir1 = deno.makeTempDirSync({ prefix: "hello", suffix: "world" });
+  const dir2 = deno.makeTempDirSync({ prefix: "hello", suffix: "world" });
+  // Check that both dirs are different.
+  assert(dir1 != dir2);
+  for (const dir of [dir1, dir2]) {
+    // Check that the prefix and suffix are applied.
+    const lastPart = dir.replace(/^.*[\\\/]/, "");
+    assert(lastPart.startsWith("hello"));
+    assert(lastPart.endsWith("world"));
+  }
+  // Check that the `dir` option works.
+  const dir3 = deno.makeTempDirSync({ dir: dir1 });
+  assert(dir3.startsWith(dir1));
+  assert(/^[\\\/]/.test(dir3.slice(dir1.length)));
+  // Check that creating a temp dir inside a nonexisting directory fails.
+  let err;
+  try {
+    deno.makeTempDirSync({ dir: "/baddir" });
+  } catch (err_) {
+    err = err_;
+  }
+  assertEqual(err.kind, deno.ErrorKind.NotFound);
+  assertEqual(err.name, "NotFound");
+});
+
+test(function makeTempDirSyncPerm() {
+  // makeTempDirSync should require write permissions (for now).
+  let err;
+  try {
+    deno.makeTempDirSync({ dir: "/baddir" });
+  } catch (err_) {
+    err = err_;
+  }
+  assertEqual(err.kind, deno.ErrorKind.PermissionDenied);
+  assertEqual(err.name, "PermissionDenied");
+});
+
+testPerm({ write: true }, async function makeTempDirSuccess() {
+  const dir1 = await deno.makeTempDir({ prefix: "hello", suffix: "world" });
+  const dir2 = await deno.makeTempDir({ prefix: "hello", suffix: "world" });
+  // Check that both dirs are different.
+  assert(dir1 != dir2);
+  for (const dir of [dir1, dir2]) {
+    // Check that the prefix and suffix are applied.
+    const lastPart = dir.replace(/^.*[\\\/]/, "");
+    assert(lastPart.startsWith("hello"));
+    assert(lastPart.endsWith("world"));
+  }
+  // Check that the `dir` option works.
+  const dir3 = await deno.makeTempDir({ dir: dir1 });
+  assert(dir3.startsWith(dir1));
+  assert(/^[\\\/]/.test(dir3.slice(dir1.length)));
+  // Check that creating a temp dir inside a nonexisting directory fails.
+  let err;
+  try {
+    await deno.makeTempDir({ dir: "/baddir" });
+  } catch (err_) {
+    err = err_;
+  }
+  assertEqual(err.kind, deno.ErrorKind.NotFound);
+  assertEqual(err.name, "NotFound");
+});