Tests: Account for array-like objects in jQuery.grep

Cherry-picked from 67b76f5986a78d868553b9aec0d0192f5259a078
Closes gh-2605

1 files changed, 73 insertions, 6 deletions

diff --git a/test/unit/core.js b/test/unit/core.js
index a9b1fc802..e8202accd 100644
--- a/test/unit/core.js
+++ b/test/unit/core.js
@@ -975,16 +975,83 @@ QUnit.test( "jQuery.grep()", function( assert ) {
 	assert.deepEqual( jQuery.grep( [], searchCriterion ), [], "Empty array" );
 	assert.deepEqual( jQuery.grep( new Array( 4 ), searchCriterion ), [], "Sparse array" );
 
-	assert.deepEqual( jQuery.grep( [ 1, 2, 3, 4, 5, 6 ], searchCriterion ), [ 2, 4, 6 ], "Satisfying elements present" );
-	assert.deepEqual( jQuery.grep( [ 1, 3, 5, 7 ], searchCriterion ), [], "Satisfying elements absent" );
+	assert.deepEqual(
+		jQuery.grep( [ 1, 2, 3, 4, 5, 6 ], searchCriterion ),
+		[ 2, 4, 6 ],
+		"Satisfying elements present"
+	);
+	assert.deepEqual(
+		jQuery.grep( [ 1, 3, 5, 7 ], searchCriterion ),
+		[],
+		"Satisfying elements absent"
+	);
 
-	assert.deepEqual( jQuery.grep( [ 1, 2, 3, 4, 5, 6 ], searchCriterion, true ), [ 1, 3, 5 ], "Satisfying elements present and grep inverted" );
-	assert.deepEqual( jQuery.grep( [ 1, 3, 5, 7 ], searchCriterion, true ), [ 1, 3, 5, 7 ], "Satisfying elements absent and grep inverted" );
+	assert.deepEqual(
+		jQuery.grep( [ 1, 2, 3, 4, 5, 6 ], searchCriterion, true ),
+		[ 1, 3, 5 ],
+		"Satisfying elements present and grep inverted"
+	);
+	assert.deepEqual(
+		jQuery.grep( [ 1, 3, 5, 7 ], searchCriterion, true ),
+		[ 1, 3, 5, 7 ],
+		"Satisfying elements absent and grep inverted"
+	);
 
-	assert.deepEqual( jQuery.grep( [ 1, 2, 3, 4, 5, 6 ], searchCriterion, false ), [ 2, 4, 6 ], "Satisfying elements present but grep explicitly uninverted" );
-	assert.deepEqual( jQuery.grep( [ 1, 3, 5, 7 ], searchCriterion, false ), [], "Satisfying elements absent and grep explicitly uninverted" );
+	assert.deepEqual(
+		jQuery.grep( [ 1, 2, 3, 4, 5, 6 ], searchCriterion, false ),
+		[ 2, 4, 6 ],
+		"Satisfying elements present but grep explicitly uninverted"
+	);
+	assert.deepEqual(
+		jQuery.grep( [ 1, 3, 5, 7 ], searchCriterion, false ),
+		[],
+		"Satisfying elements absent and grep explicitly uninverted"
+	);
 } );
 
+QUnit.test( "jQuery.grep(Array-like)", function( assert ) {
+	assert.expect( 7 );
+
+	var searchCriterion = function( value ) {
+		return value % 2 === 0;
+	};
+
+	assert.deepEqual( jQuery.grep( { length: 0 }, searchCriterion ), [], "Empty array-like" );
+
+	assert.deepEqual(
+		jQuery.grep( { 0: 1, 1: 2, 2: 3, 3: 4, 4: 5, 5: 6, length: 6 }, searchCriterion ),
+		[ 2, 4, 6 ],
+		"Satisfying elements present and array-like object used"
+	);
+	assert.deepEqual(
+		jQuery.grep( { 0: 1, 1: 3, 2: 5, 3: 7, length: 4 }, searchCriterion ),
+		[],
+		"Satisfying elements absent and Array-like object used"
+	);
+
+	assert.deepEqual(
+		jQuery.grep( { 0: 1, 1: 2, 2: 3, 3: 4, 4: 5, 5: 6, length: 6 }, searchCriterion, true ),
+		[ 1, 3, 5 ],
+		"Satisfying elements present, array-like object used, and grep inverted"
+	);
+	assert.deepEqual(
+		jQuery.grep( { 0: 1, 1: 3, 2: 5, 3: 7, length: 4 }, searchCriterion, true ),
+		[ 1, 3, 5, 7 ],
+		"Satisfying elements absent, array-like object used, and grep inverted"
+	);
+
+	assert.deepEqual(
+		jQuery.grep( { 0: 1, 1: 2, 2: 3, 3: 4, 4: 5, 5: 6, length: 6 }, searchCriterion, false ),
+		[ 2, 4, 6 ],
+		"Satisfying elements present, Array-like object used, but grep explicitly uninverted"
+	);
+	assert.deepEqual(
+		jQuery.grep( { 0: 1, 1: 3, 2: 5, 3: 7, length: 4 }, searchCriterion, false ),
+		[],
+		"Satisfying elements absent, Array-like object used, and grep explicitly uninverted"
+	);
+});
+
 QUnit.test( "jQuery.extend(Object, Object)", function( assert ) {
 	assert.expect( 28 );