1 files changed, 173 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/does-not-equals/bigint-and-bigint.js b/js/src/tests/test262/language/expressions/does-not-equals/bigint-and-bigint.js
new file mode 100644
index 0000000000..6d247f6a2d
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/does-not-equals/bigint-and-bigint.js
@@ -0,0 +1,173 @@
+// Copyright (C) 2017 Josh Wolfe. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Non-strict inequality comparison of BigInt values
+esid: sec-abstract-equality-comparison
+info: |
+  1. If Type(x) is the same as Type(y), then
+    a. Return the result of performing Strict Equality Comparison x === y.
+
+  sec-numeric-types-bigint-equal
+  BigInt::equal (x, y)
+
+    The abstract operation BigInt::equal with two arguments x and y of BigInt type returns true if x and y have the same mathematical integer value and false otherwise.
+
+features: [BigInt]
+---*/
+assert.sameValue(0n != 0n, false, 'The result of (0n != 0n) is false');
+assert.sameValue(1n != 1n, false, 'The result of (1n != 1n) is false');
+assert.sameValue(-1n != -1n, false, 'The result of (-1n != -1n) is false');
+assert.sameValue(0n != -0n, false, 'The result of (0n != -0n) is false');
+assert.sameValue(-0n != 0n, false, 'The result of (-0n != 0n) is false');
+assert.sameValue(0n != 1n, true, 'The result of (0n != 1n) is true');
+assert.sameValue(1n != 0n, true, 'The result of (1n != 0n) is true');
+assert.sameValue(0n != -1n, true, 'The result of (0n != -1n) is true');
+assert.sameValue(-1n != 0n, true, 'The result of (-1n != 0n) is true');
+assert.sameValue(1n != -1n, true, 'The result of (1n != -1n) is true');
+assert.sameValue(-1n != 1n, true, 'The result of (-1n != 1n) is true');
+
+assert.sameValue(
+  0x1fffffffffffff01n != 0x1fffffffffffff01n,
+  false,
+  'The result of (0x1fffffffffffff01n != 0x1fffffffffffff01n) is false'
+);
+
+assert.sameValue(
+  0x1fffffffffffff01n != 0x1fffffffffffff02n,
+  true,
+  'The result of (0x1fffffffffffff01n != 0x1fffffffffffff02n) is true'
+);
+
+assert.sameValue(
+  0x1fffffffffffff02n != 0x1fffffffffffff01n,
+  true,
+  'The result of (0x1fffffffffffff02n != 0x1fffffffffffff01n) is true'
+);
+
+assert.sameValue(
+  -0x1fffffffffffff01n != -0x1fffffffffffff01n,
+  false,
+  'The result of (-0x1fffffffffffff01n != -0x1fffffffffffff01n) is false'
+);
+
+assert.sameValue(
+  -0x1fffffffffffff01n != -0x1fffffffffffff02n,
+  true,
+  'The result of (-0x1fffffffffffff01n != -0x1fffffffffffff02n) is true'
+);
+
+assert.sameValue(
+  -0x1fffffffffffff02n != -0x1fffffffffffff01n,
+  true,
+  'The result of (-0x1fffffffffffff02n != -0x1fffffffffffff01n) is true'
+);
+
+assert.sameValue(
+  0x10000000000000000n != 0n,
+  true,
+  'The result of (0x10000000000000000n != 0n) is true'
+);
+
+assert.sameValue(
+  0n != 0x10000000000000000n,
+  true,
+  'The result of (0n != 0x10000000000000000n) is true'
+);
+
+assert.sameValue(
+  0x10000000000000000n != 1n,
+  true,
+  'The result of (0x10000000000000000n != 1n) is true'
+);
+
+assert.sameValue(
+  1n != 0x10000000000000000n,
+  true,
+  'The result of (1n != 0x10000000000000000n) is true'
+);
+
+assert.sameValue(
+  0x10000000000000000n != -1n,
+  true,
+  'The result of (0x10000000000000000n != -1n) is true'
+);
+
+assert.sameValue(
+  -1n != 0x10000000000000000n,
+  true,
+  'The result of (-1n != 0x10000000000000000n) is true'
+);
+
+assert.sameValue(
+  0x10000000000000001n != 0n,
+  true,
+  'The result of (0x10000000000000001n != 0n) is true'
+);
+
+assert.sameValue(
+  0n != 0x10000000000000001n,
+  true,
+  'The result of (0n != 0x10000000000000001n) is true'
+);
+
+assert.sameValue(
+  -0x10000000000000000n != 0n,
+  true,
+  'The result of (-0x10000000000000000n != 0n) is true'
+);
+
+assert.sameValue(
+  0n != -0x10000000000000000n,
+  true,
+  'The result of (0n != -0x10000000000000000n) is true'
+);
+
+assert.sameValue(
+  -0x10000000000000000n != 1n,
+  true,
+  'The result of (-0x10000000000000000n != 1n) is true'
+);
+
+assert.sameValue(
+  1n != -0x10000000000000000n,
+  true,
+  'The result of (1n != -0x10000000000000000n) is true'
+);
+
+assert.sameValue(
+  -0x10000000000000000n != -1n,
+  true,
+  'The result of (-0x10000000000000000n != -1n) is true'
+);
+
+assert.sameValue(
+  -1n != -0x10000000000000000n,
+  true,
+  'The result of (-1n != -0x10000000000000000n) is true'
+);
+
+assert.sameValue(
+  -0x10000000000000001n != 0n,
+  true,
+  'The result of (-0x10000000000000001n != 0n) is true'
+);
+
+assert.sameValue(
+  0n != -0x10000000000000001n,
+  true,
+  'The result of (0n != -0x10000000000000001n) is true'
+);
+
+assert.sameValue(
+  0x10000000000000000n != 0x100000000n,
+  true,
+  'The result of (0x10000000000000000n != 0x100000000n) is true'
+);
+
+assert.sameValue(
+  0x100000000n != 0x10000000000000000n,
+  true,
+  'The result of (0x100000000n != 0x10000000000000000n) is true'
+);
+
+reportCompare(0, 0);