Add fp.mergeAllWith test.

fp/_mapping.js

@@ -88,16 +88,17 @@ exports.aryMethod = {
     'groupBy', 'gt', 'gte', 'has', 'hasIn', 'includes', 'indexOf', 'intersection',
     'invertBy', 'invoke', 'invokeMap', 'isEqual', 'isMatch', 'join', 'keyBy',
     'lastIndexOf', 'lt', 'lte', 'map', 'mapKeys', 'mapValues', 'matchesProperty',
-    'maxBy', 'meanBy', 'merge', 'minBy', 'multiply', 'nth', 'omit', 'omitBy',
-    'overArgs', 'pad', 'padEnd', 'padStart', 'parseInt', 'partial', 'partialRight',
-    'partition', 'pick', 'pickBy', 'pull', 'pullAll', 'pullAt', 'random', 'range',
-    'rangeRight', 'rearg', 'reject', 'remove', 'repeat', 'restFrom', 'result',
-    'sampleSize', 'some', 'sortBy', 'sortedIndex', 'sortedIndexOf', 'sortedLastIndex',
-    'sortedLastIndexOf', 'sortedUniqBy', 'split', 'spreadFrom', 'startsWith',
-    'subtract', 'sumBy', 'take', 'takeRight', 'takeRightWhile', 'takeWhile', 'tap',
-    'throttle', 'thru', 'times', 'trimChars', 'trimCharsEnd', 'trimCharsStart',
-    'truncate', 'union', 'uniqBy', 'uniqWith', 'unset', 'unzipWith', 'without',
-    'wrap', 'xor', 'zip', 'zipObject', 'zipObjectDeep'
+    'maxBy', 'meanBy', 'merge', 'mergeAllWith', 'minBy', 'multiply', 'nth', 'omit',
+    'omitBy', 'overArgs', 'pad', 'padEnd', 'padStart', 'parseInt', 'partial',
+    'partialRight', 'partition', 'pick', 'pickBy', 'pull', 'pullAll', 'pullAt',
+    'random', 'range', 'rangeRight', 'rearg', 'reject', 'remove', 'repeat',
+    'restFrom', 'result', 'sampleSize', 'some', 'sortBy', 'sortedIndex',
+    'sortedIndexOf', 'sortedLastIndex', 'sortedLastIndexOf', 'sortedUniqBy',
+    'split', 'spreadFrom', 'startsWith', 'subtract', 'sumBy', 'take', 'takeRight',
+    'takeRightWhile', 'takeWhile', 'tap', 'throttle', 'thru', 'times', 'trimChars',
+    'trimCharsEnd', 'trimCharsStart', 'truncate', 'union', 'uniqBy', 'uniqWith',
+    'unset', 'unzipWith', 'without', 'wrap', 'xor', 'zip', 'zipObject',
+    'zipObjectDeep'
   ],
   '3': [
     'assignInWith', 'assignWith', 'clamp', 'differenceBy', 'differenceWith',

test/test-fp.js

@@ -1460,11 +1460,11 @@
 
       var args,
           stack = { '__data__': { '__data__': [] } },
-          expected = [[1], [2, 3], 'a', { 'a': [1] }, { 'a': [2, 3] }, stack];
+          expected = [[1, 2], [3], 'a', { 'a': [1, 2] }, { 'a': [3] }, stack];
 
       fp.mergeWith(function() {
         args || (args = _.map(arguments, _.cloneDeep));
-      })({ 'a': [1] })({ 'a': [2, 3] });
+      })({ 'a': [1, 2] })({ 'a': [3] });
 
       args[5] = _.omitBy(args[5], _.isFunction);
       args[5].__data__ = _.omitBy(args[5].__data__, _.isFunction);
@@ -1475,17 +1475,44 @@
     QUnit.test('should not mutate values', function(assert) {
       assert.expect(2);
 
-      var object = { 'a': { 'b': 2, 'c': 3 } };
-      object.a.b = [1];
+      var objects = [{ 'a': [1, 2] }, { 'a': [3] }],
+          actual = fp.mergeWith(_.noop, objects[0], objects[1]);
 
-      var actual = fp.mergeWith(function(objValue, srcValue) {
-        if (_.isArray(objValue)) {
-          return objValue.concat(srcValue);
-        }
-      }, object, { 'a': { 'b': [2, 3] } });
+      assert.deepEqual(objects[0], { 'a': [1, 2] });
+      assert.deepEqual(actual, { 'a': [3, 2] });
+    });
+  }());
 
-      assert.deepEqual(object, { 'a': { 'b': [1], 'c': 3 } });
-      assert.deepEqual(actual, { 'a': { 'b': [1, 2, 3], 'c': 3 } });
+  /*--------------------------------------------------------------------------*/
+
+  QUnit.module('fp.mergeAllWith');
+
+  (function() {
+    QUnit.test('should provide the correct `customizer` arguments', function(assert) {
+      assert.expect(1);
+
+      var args,
+          stack = { '__data__': { '__data__': [] } },
+          expected = [[1, 2], [3], 'a', { 'a': [1, 2] }, { 'a': [3] }, stack];
+
+      fp.mergeAllWith(function() {
+        args || (args = _.map(arguments, _.cloneDeep));
+      })([{ 'a': [1, 2] }, { 'a': [3] }]);
+
+      args[5] = _.omitBy(args[5], _.isFunction);
+      args[5].__data__ = _.omitBy(args[5].__data__, _.isFunction);
+
+      assert.deepEqual(args, expected);
+    });
+
+    QUnit.test('should not mutate values', function(assert) {
+      assert.expect(2);
+
+      var objects = [{ 'a': [1, 2] }, { 'a': [3] }],
+          actual = fp.mergeAllWith(_.noop, objects);
+
+      assert.deepEqual(objects[0], { 'a': [1, 2] });
+      assert.deepEqual(actual, { 'a': [3, 2] });
     });
   }());