1 files changed, 174 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/strict-equals/bigint-and-bigint.js b/js/src/tests/test262/language/expressions/strict-equals/bigint-and-bigint.js
new file mode 100644
index 0000000000..86f028ca79
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/strict-equals/bigint-and-bigint.js
@@ -0,0 +1,174 @@
+// Copyright (C) 2017 Josh Wolfe. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: Strict equality comparison of BigInt values
+esid: sec-strict-equality-comparison
+info: |
+  1. If Type(x) is different from Type(y), return false.
+  2. If Type(x) is Number or BigInt, then
+    a. Return ! Type(x)::equal(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, true, 'The result of (0n === 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(0n === -0n, true, 'The result of (0n === -0n) is true');
+assert.sameValue(-0n === 0n, true, 'The result of (-0n === 0n) is true');
+assert.sameValue(0n === 1n, false, 'The result of (0n === 1n) is false');
+assert.sameValue(1n === 0n, false, 'The result of (1n === 0n) is false');
+assert.sameValue(0n === -1n, false, 'The result of (0n === -1n) is false');
+assert.sameValue(-1n === 0n, false, 'The result of (-1n === 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(
+  0x1fffffffffffff01n === 0x1fffffffffffff01n,
+  true,
+  'The result of (0x1fffffffffffff01n === 0x1fffffffffffff01n) is true'
+);
+
+assert.sameValue(
+  0x1fffffffffffff01n === 0x1fffffffffffff02n,
+  false,
+  'The result of (0x1fffffffffffff01n === 0x1fffffffffffff02n) is false'
+);
+
+assert.sameValue(
+  0x1fffffffffffff02n === 0x1fffffffffffff01n,
+  false,
+  'The result of (0x1fffffffffffff02n === 0x1fffffffffffff01n) is false'
+);
+
+assert.sameValue(
+  -0x1fffffffffffff01n === -0x1fffffffffffff01n,
+  true,
+  'The result of (-0x1fffffffffffff01n === -0x1fffffffffffff01n) is true'
+);
+
+assert.sameValue(
+  -0x1fffffffffffff01n === -0x1fffffffffffff02n,
+  false,
+  'The result of (-0x1fffffffffffff01n === -0x1fffffffffffff02n) is false'
+);
+
+assert.sameValue(
+  -0x1fffffffffffff02n === -0x1fffffffffffff01n,
+  false,
+  'The result of (-0x1fffffffffffff02n === -0x1fffffffffffff01n) is false'
+);
+
+assert.sameValue(
+  0x10000000000000000n === 0n,
+  false,
+  'The result of (0x10000000000000000n === 0n) is false'
+);
+
+assert.sameValue(
+  0n === 0x10000000000000000n,
+  false,
+  'The result of (0n === 0x10000000000000000n) is false'
+);
+
+assert.sameValue(
+  0x10000000000000000n === 1n,
+  false,
+  'The result of (0x10000000000000000n === 1n) is false'
+);
+
+assert.sameValue(
+  1n === 0x10000000000000000n,
+  false,
+  'The result of (1n === 0x10000000000000000n) is false'
+);
+
+assert.sameValue(
+  0x10000000000000000n === -1n,
+  false,
+  'The result of (0x10000000000000000n === -1n) is false'
+);
+
+assert.sameValue(
+  -1n === 0x10000000000000000n,
+  false,
+  'The result of (-1n === 0x10000000000000000n) is false'
+);
+
+assert.sameValue(
+  0x10000000000000001n === 0n,
+  false,
+  'The result of (0x10000000000000001n === 0n) is false'
+);
+
+assert.sameValue(
+  0n === 0x10000000000000001n,
+  false,
+  'The result of (0n === 0x10000000000000001n) is false'
+);
+
+assert.sameValue(
+  -0x10000000000000000n === 0n,
+  false,
+  'The result of (-0x10000000000000000n === 0n) is false'
+);
+
+assert.sameValue(
+  0n === -0x10000000000000000n,
+  false,
+  'The result of (0n === -0x10000000000000000n) is false'
+);
+
+assert.sameValue(
+  -0x10000000000000000n === 1n,
+  false,
+  'The result of (-0x10000000000000000n === 1n) is false'
+);
+
+assert.sameValue(
+  1n === -0x10000000000000000n,
+  false,
+  'The result of (1n === -0x10000000000000000n) is false'
+);
+
+assert.sameValue(
+  -0x10000000000000000n === -1n,
+  false,
+  'The result of (-0x10000000000000000n === -1n) is false'
+);
+
+assert.sameValue(
+  -1n === -0x10000000000000000n,
+  false,
+  'The result of (-1n === -0x10000000000000000n) is false'
+);
+
+assert.sameValue(
+  -0x10000000000000001n === 0n,
+  false,
+  'The result of (-0x10000000000000001n === 0n) is false'
+);
+
+assert.sameValue(
+  0n === -0x10000000000000001n,
+  false,
+  'The result of (0n === -0x10000000000000001n) is false'
+);
+
+assert.sameValue(
+  0x10000000000000000n === 0x100000000n,
+  false,
+  'The result of (0x10000000000000000n === 0x100000000n) is false'
+);
+
+assert.sameValue(
+  0x100000000n === 0x10000000000000000n,
+  false,
+  'The result of (0x100000000n === 0x10000000000000000n) is false'
+);
+
+reportCompare(0, 0);