test: make test-fs-access stricter

Change regular expression matching in `assert.throws()` to match the
entire error message. In `assert.throws()` that uses a function for
matching rather than a regular expression, add checks for the `message`
property and the error's constructor.

Also, refactored to remove unnecessary temp file handling. No need to
remove temp files after the test. Each test is responsible for clearing
the temp directory if it needs to use it.

PR-URL: nodejs#11087
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Adrian Estrada <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Daniel Bevenius <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: Yuta Hiroto <[email protected]>

test/parallel/test-fs-access.js

@@ -7,16 +7,7 @@ const doesNotExist = path.join(common.tmpDir, '__this_should_not_exist');
 const readOnlyFile = path.join(common.tmpDir, 'read_only_file');
 const readWriteFile = path.join(common.tmpDir, 'read_write_file');
 
-const removeFile = function(file) {
-  try {
-    fs.unlinkSync(file);
-  } catch (err) {
-    // Ignore error
-  }
-};
-
 const createFileWithPerms = function(file, mode) {
-  removeFile(file);
   fs.writeFileSync(file, '');
   fs.chmodSync(file, mode);
 };
@@ -91,16 +82,16 @@ fs.access(readOnlyFile, fs.W_OK, common.mustCall((err) => {
 }));
 
 assert.throws(() => {
-  fs.access(100, fs.F_OK, (err) => {});
-}, /path must be a string or Buffer/);
+  fs.access(100, fs.F_OK, () => { common.fail('callback should not run'); });
+}, /^TypeError: path must be a string or Buffer$/);
 
 assert.throws(() => {
   fs.access(__filename, fs.F_OK);
-}, /"callback" argument must be a function/);
+}, /^TypeError: "callback" argument must be a function$/);
 
 assert.throws(() => {
   fs.access(__filename, fs.F_OK, {});
-}, /"callback" argument must be a function/);
+}, /^TypeError: "callback" argument must be a function$/);
 
 assert.doesNotThrow(() => {
   fs.accessSync(__filename);
@@ -112,13 +103,16 @@ assert.doesNotThrow(() => {
   fs.accessSync(readWriteFile, mode);
 });
 
-assert.throws(() => {
-  fs.accessSync(doesNotExist);
-}, (err) => {
-  return err.code === 'ENOENT' && err.path === doesNotExist;
-});
-
-process.on('exit', () => {
-  removeFile(readOnlyFile);
-  removeFile(readWriteFile);
-});
+assert.throws(
+  () => { fs.accessSync(doesNotExist); },
+  (err) => {
+    assert.strictEqual(err.code, 'ENOENT');
+    assert.strictEqual(err.path, doesNotExist);
+    assert.strictEqual(
+      err.message,
+      `ENOENT: no such file or directory, access '${doesNotExist}'`
+    );
+    assert.strictEqual(err.constructor, Error);
+    return true;
+  }
+);