1 files changed, 71 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/BigInt/asUintN/arithmetic.js b/js/src/tests/test262/built-ins/BigInt/asUintN/arithmetic.js
new file mode 100644
index 0000000000..654f90cc63
--- /dev/null
+++ b/js/src/tests/test262/built-ins/BigInt/asUintN/arithmetic.js
@@ -0,0 +1,71 @@
+// Copyright (C) 2017 Josh Wolfe. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: pending
+description: BigInt.asUintN arithmetic test cases
+info: |
+  BigInt.asUintN ( bits, bigint )
+
+  3. Return a BigInt representing bigint modulo 2**bits.
+
+features: [BigInt]
+---*/
+
+assert.sameValue(BigInt.asUintN(0, -2n), 0n);
+assert.sameValue(BigInt.asUintN(0, -1n), 0n);
+assert.sameValue(BigInt.asUintN(0, 0n), 0n);
+assert.sameValue(BigInt.asUintN(0, 1n), 0n);
+assert.sameValue(BigInt.asUintN(0, 2n), 0n);
+
+assert.sameValue(BigInt.asUintN(1, -3n), 1n);
+assert.sameValue(BigInt.asUintN(1, -2n), 0n);
+assert.sameValue(BigInt.asUintN(1, -1n), 1n);
+assert.sameValue(BigInt.asUintN(1, 0n), 0n);
+assert.sameValue(BigInt.asUintN(1, 1n), 1n);
+assert.sameValue(BigInt.asUintN(1, 2n), 0n);
+assert.sameValue(BigInt.asUintN(1, 3n), 1n);
+assert.sameValue(BigInt.asUintN(1, -123456789012345678901n), 1n);
+assert.sameValue(BigInt.asUintN(1, -123456789012345678900n), 0n);
+assert.sameValue(BigInt.asUintN(1, 123456789012345678900n), 0n);
+assert.sameValue(BigInt.asUintN(1, 123456789012345678901n), 1n);
+
+assert.sameValue(BigInt.asUintN(2, -3n), 1n);
+assert.sameValue(BigInt.asUintN(2, -2n), 2n);
+assert.sameValue(BigInt.asUintN(2, -1n), 3n);
+assert.sameValue(BigInt.asUintN(2, 0n), 0n);
+assert.sameValue(BigInt.asUintN(2, 1n), 1n);
+assert.sameValue(BigInt.asUintN(2, 2n), 2n);
+assert.sameValue(BigInt.asUintN(2, 3n), 3n);
+assert.sameValue(BigInt.asUintN(2, -123456789012345678901n), 3n);
+assert.sameValue(BigInt.asUintN(2, -123456789012345678900n), 0n);
+assert.sameValue(BigInt.asUintN(2, 123456789012345678900n), 0n);
+assert.sameValue(BigInt.asUintN(2, 123456789012345678901n), 1n);
+
+assert.sameValue(BigInt.asUintN(8, 0xabn), 0xabn);
+assert.sameValue(BigInt.asUintN(8, 0xabcdn), 0xcdn);
+assert.sameValue(BigInt.asUintN(8, 0xabcdef01n), 0x01n);
+assert.sameValue(BigInt.asUintN(8, 0xabcdef0123456789abcdef0123n), 0x23n);
+assert.sameValue(BigInt.asUintN(8, 0xabcdef0123456789abcdef0183n), 0x83n);
+
+assert.sameValue(BigInt.asUintN(64, 0xabcdef0123456789abcdefn), 0x0123456789abcdefn);
+assert.sameValue(BigInt.asUintN(65, 0xabcdef0123456789abcdefn), 0x10123456789abcdefn);
+
+assert.sameValue(BigInt.asUintN(200,
+    0xbffffffffffffffffffffffffffffffffffffffffffffffffffn),
+  0x0ffffffffffffffffffffffffffffffffffffffffffffffffffn
+);
+assert.sameValue(BigInt.asUintN(201,
+    0xbffffffffffffffffffffffffffffffffffffffffffffffffffn),
+  0x1ffffffffffffffffffffffffffffffffffffffffffffffffffn
+);
+
+assert.sameValue(BigInt.asUintN(200,
+    0xb89e081df68b65fedb32cffea660e55df9605650a603ad5fc54n),
+  0x089e081df68b65fedb32cffea660e55df9605650a603ad5fc54n
+);
+assert.sameValue(BigInt.asUintN(201,
+    0xb89e081df68b65fedb32cffea660e55df9605650a603ad5fc54n),
+  0x189e081df68b65fedb32cffea660e55df9605650a603ad5fc54n
+);
+
+reportCompare(0, 0);