1 files changed, 59 insertions, 0 deletions
diff --git a/js/src/tests/ecma_7/TypedObject/arrayequiv.js b/js/src/tests/ecma_7/TypedObject/arrayequiv.js
new file mode 100644
index 000000000..e6a89586d
--- /dev/null
+++ b/js/src/tests/ecma_7/TypedObject/arrayequiv.js
@@ -0,0 +1,59 @@
+// |reftest| skip-if(!this.hasOwnProperty("TypedObject"))
+var BUGNUMBER = 922216;
+var summary = 'TypedObjects Equivalent ArrayTypes';
+
+var ArrayType = TypedObject.ArrayType;
+var StructType = TypedObject.StructType;
+var uint8 = TypedObject.uint8;
+var uint16 = TypedObject.uint16;
+var uint32 = TypedObject.uint32;
+var uint8Clamped = TypedObject.uint8Clamped;
+var int8 = TypedObject.int8;
+var int16 = TypedObject.int16;
+var int32 = TypedObject.int32;
+var float32 = TypedObject.float32;
+var float64 = TypedObject.float64;
+
+function assertEquivalent(t1, t2) {
+  assertEq(true, t1.equivalent(t2));
+  assertEq(true, t2.equivalent(t1));
+}
+
+function assertNotEquivalent(t1, t2) {
+  assertEq(false, t1.equivalent(t2));
+  assertEq(false, t2.equivalent(t1));
+}
+
+function runTests() {
+  print(BUGNUMBER + ": " + summary);
+
+  // Create a line:
+  var PixelType1 = new StructType({x: uint8, y: uint8});
+  var PixelsType1 = PixelType1.array(22);
+
+  // Sanity checks about type equivalence:
+  assertEquivalent(PixelType1, PixelType1);
+  assertEquivalent(PixelsType1, PixelsType1);
+  assertNotEquivalent(PixelType1, PixelsType1);
+
+  // Define the same two types again. Equivalent.
+  var PixelType2 = new StructType({x: uint8, y: uint8});
+  var PixelsType2 = PixelType2.array(22);
+  assertEquivalent(PixelType1, PixelType2);
+  assertEquivalent(PixelsType1, PixelsType2);
+
+  // Define the pixel type with field order reversed. Not equivalent.
+  var PixelType3 = new StructType({y: uint8, x: uint8});
+  var PixelsType3 = PixelType3.array(22);
+  assertNotEquivalent(PixelType1, PixelType3);
+  assertNotEquivalent(PixelsType1, PixelsType3);
+
+  // Define the pixels type with different number of elements. Not equivalent.
+  var PixelsType3 = PixelType1.array(23);
+  assertNotEquivalent(PixelsType1, PixelsType3);
+
+  reportCompare(true, true);
+  print("Tests complete");
+}
+
+runTests();