1 files changed, 60 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/BigInt/constructor-integer.js b/js/src/tests/test262/built-ins/BigInt/constructor-integer.js
new file mode 100644
index 0000000000..c70dac79c6
--- /dev/null
+++ b/js/src/tests/test262/built-ins/BigInt/constructor-integer.js
@@ -0,0 +1,60 @@
+// Copyright (C) 2018 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: BigInt constructor called with integer argument
+esid: sec-bigint-constructor-number-value
+info: |
+  BigInt ( value )
+
+  ...
+  3. If Type(prim) is Number, return ? NumberToBigInt(prim).
+
+  NumberToBigInt ( number )
+
+  ...
+  3. Return a BigInt representing the mathematical value of number.
+features: [BigInt]
+---*/
+
+assert.sameValue(
+  BigInt(Number.MAX_SAFE_INTEGER), 9007199254740991n,
+  "BigInt(Number.MAX_SAFE_INTEGER) === 9007199254740991n"
+);
+
+assert.sameValue(
+  BigInt(-Number.MAX_SAFE_INTEGER), -9007199254740991n,
+  "BigInt(-Number.MAX_SAFE_INTEGER) === -9007199254740991n"
+);
+
+assert.sameValue(
+  BigInt(Number.MAX_SAFE_INTEGER + 1), 9007199254740992n,
+  "BigInt(Number.MAX_SAFE_INTEGER + 1) === 9007199254740992n"
+);
+
+assert.sameValue(
+  BigInt(-Number.MAX_SAFE_INTEGER - 1), -9007199254740992n,
+  "BigInt(-Number.MAX_SAFE_INTEGER - 1) === -9007199254740992n"
+);
+
+assert.sameValue(
+  BigInt(Number.MAX_SAFE_INTEGER + 2), 9007199254740992n,
+  "BigInt(Number.MAX_SAFE_INTEGER + 2) === 9007199254740992n"
+);
+
+assert.sameValue(
+  BigInt(-Number.MAX_SAFE_INTEGER - 2), -9007199254740992n,
+  "BigInt(-Number.MAX_SAFE_INTEGER - 2) === -9007199254740992n"
+);
+
+assert.sameValue(
+  BigInt(Number.MAX_SAFE_INTEGER + 3), 9007199254740994n,
+  "BigInt(Number.MAX_SAFE_INTEGER + 3) === 9007199254740994n"
+);
+
+assert.sameValue(
+  BigInt(-Number.MAX_SAFE_INTEGER - 3), -9007199254740994n,
+  "BigInt(-Number.MAX_SAFE_INTEGER - 3) === -9007199254740994n"
+);
+
+reportCompare(0, 0);