test: extended test to makeCallback cb type check

makeCallback and makeStatsCallback are both tested intedependently.

PR-URL: nodejs/node#12140
Fixes: nodejs/node#12136
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>

test/parallel/test-fs-make-callback.js

@@ -3,37 +3,29 @@ const common = require('../common');
 const assert = require('assert');
 const fs = require('fs');
 const cbTypeError = /^TypeError: "callback" argument must be a function$/;
+const callbackThrowValues = [null, true, false, 0, 1, 'foo', /foo/, [], {}];
 
-function test(cb) {
+const { sep } = require('path');
+const warn = 'Calling an asynchronous function without callback is deprecated.';
+
+common.refreshTmpDir();
+
+function testMakeCallback(cb) {
   return function() {
-    // fs.stat() calls makeCallback() on its second argument
-    fs.stat(__filename, cb);
+    // fs.mkdtemp() calls makeCallback() on its third argument
+    fs.mkdtemp(`${common.tmpDir}${sep}`, {}, cb);
   };
 }
 
-// Verify the case where a callback function is provided
-assert.doesNotThrow(test(common.noop));
-
-process.once('warning', common.mustCall((warning) => {
-  assert.strictEqual(
-    warning.message,
-    'Calling an asynchronous function without callback is deprecated.'
-  );
-
-  invalidArgumentsTests();
-}));
+common.expectWarning('DeprecationWarning', warn);
 
 // Passing undefined/nothing calls rethrow() internally, which emits a warning
-assert.doesNotThrow(test());
+assert.doesNotThrow(testMakeCallback());
 
-function invalidArgumentsTests() {
-  assert.throws(test(null), cbTypeError);
-  assert.throws(test(true), cbTypeError);
-  assert.throws(test(false), cbTypeError);
-  assert.throws(test(1), cbTypeError);
-  assert.throws(test(0), cbTypeError);
-  assert.throws(test('foo'), cbTypeError);
-  assert.throws(test(/foo/), cbTypeError);
-  assert.throws(test([]), cbTypeError);
-  assert.throws(test({}), cbTypeError);
+function invalidCallbackThrowsTests() {
+  callbackThrowValues.forEach((value) => {
+    assert.throws(testMakeCallback(value), cbTypeError);
+  });
 }
+
+invalidCallbackThrowsTests();

test/parallel/test-fs-makeStatsCallback.js

@@ -0,0 +1,30 @@
+'use strict';
+const common = require('../common');
+const assert = require('assert');
+const fs = require('fs');
+const cbTypeError = /^TypeError: "callback" argument must be a function$/;
+const callbackThrowValues = [null, true, false, 0, 1, 'foo', /foo/, [], {}];
+const warn = 'Calling an asynchronous function without callback is deprecated.';
+
+function testMakeStatsCallback(cb) {
+  return function() {
+    // fs.stat() calls makeStatsCallback() on its second argument
+    fs.stat(__filename, cb);
+  };
+}
+
+common.expectWarning('DeprecationWarning', warn);
+
+// Verify the case where a callback function is provided
+assert.doesNotThrow(testMakeStatsCallback(common.noop));
+
+// Passing undefined/nothing calls rethrow() internally, which emits a warning
+assert.doesNotThrow(testMakeStatsCallback());
+
+function invalidCallbackThrowsTests() {
+  callbackThrowValues.forEach((value) => {
+    assert.throws(testMakeStatsCallback(value), cbTypeError);
+  });
+}
+
+invalidCallbackThrowsTests();