js/src/jsapi-tests/testToIntWidth.cpp@b8a032363ba2 (annotated)
js/src/jsapi-tests/testToIntWidth.cpp
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- |
| michael@0 | 2 | * vim: set ts=8 sts=4 et sw=4 tw=99: |
| michael@0 | 3 | */ |
| michael@0 | 4 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 5 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 6 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 7 | |
| michael@0 | 8 | #include <math.h> |
| michael@0 | 9 | |
| michael@0 | 10 | #include "jsapi-tests/tests.h" |
| michael@0 | 11 | #include "vm/NumericConversions.h" |
| michael@0 | 12 | |
| michael@0 | 13 | using js::detail::ToIntWidth; |
| michael@0 | 14 | using js::detail::ToUintWidth; |
| michael@0 | 15 | |
| michael@0 | 16 | BEGIN_TEST(testToUint8TwiceUint8Range) |
| michael@0 | 17 | { |
| michael@0 | 18 | double d = -256; |
| michael@0 | 19 | uint8_t expected = 0; |
| michael@0 | 20 | do { |
| michael@0 | 21 | CHECK(ToUintWidth<uint8_t>(d) == expected); |
| michael@0 | 22 | |
| michael@0 | 23 | d++; |
| michael@0 | 24 | expected++; |
| michael@0 | 25 | } while (d <= 256); |
| michael@0 | 26 | return true; |
| michael@0 | 27 | } |
| michael@0 | 28 | END_TEST(testToUint8TwiceUint8Range) |
| michael@0 | 29 | |
| michael@0 | 30 | BEGIN_TEST(testToInt8) |
| michael@0 | 31 | { |
| michael@0 | 32 | double d = -128; |
| michael@0 | 33 | int8_t expected = -128; |
| michael@0 | 34 | do { |
| michael@0 | 35 | CHECK(ToIntWidth<int8_t>(d) == expected); |
| michael@0 | 36 | |
| michael@0 | 37 | d++; |
| michael@0 | 38 | expected++; |
| michael@0 | 39 | } while (expected < 127); |
| michael@0 | 40 | return true; |
| michael@0 | 41 | } |
| michael@0 | 42 | END_TEST(testToInt8) |
| michael@0 | 43 | |
| michael@0 | 44 | BEGIN_TEST(testToUint32Large) |
| michael@0 | 45 | { |
| michael@0 | 46 | CHECK(ToUintWidth<uint32_t>(pow(2.0, 83)) == 0); |
| michael@0 | 47 | CHECK(ToUintWidth<uint32_t>(pow(2.0, 83) + pow(2.0, 31)) == (1U << 31)); |
| michael@0 | 48 | CHECK(ToUintWidth<uint32_t>(pow(2.0, 83) + 2 * pow(2.0, 31)) == 0); |
| michael@0 | 49 | CHECK(ToUintWidth<uint32_t>(pow(2.0, 83) + 3 * pow(2.0, 31)) == (1U << 31)); |
| michael@0 | 50 | CHECK(ToUintWidth<uint32_t>(pow(2.0, 84)) == 0); |
| michael@0 | 51 | CHECK(ToUintWidth<uint32_t>(pow(2.0, 84) + pow(2.0, 31)) == 0); |
| michael@0 | 52 | CHECK(ToUintWidth<uint32_t>(pow(2.0, 84) + pow(2.0, 32)) == 0); |
| michael@0 | 53 | return true; |
| michael@0 | 54 | } |
| michael@0 | 55 | END_TEST(testToUint32Large) |
| michael@0 | 56 | |
| michael@0 | 57 | BEGIN_TEST(testToUint64Large) |
| michael@0 | 58 | { |
| michael@0 | 59 | CHECK(ToUintWidth<uint64_t>(pow(2.0, 115)) == 0); |
| michael@0 | 60 | CHECK(ToUintWidth<uint64_t>(pow(2.0, 115) + pow(2.0, 63)) == (1ULL << 63)); |
| michael@0 | 61 | CHECK(ToUintWidth<uint64_t>(pow(2.0, 115) + 2 * pow(2.0, 63)) == 0); |
| michael@0 | 62 | CHECK(ToUintWidth<uint64_t>(pow(2.0, 115) + 3 * pow(2.0, 63)) == (1ULL << 63)); |
| michael@0 | 63 | CHECK(ToUintWidth<uint64_t>(pow(2.0, 116)) == 0); |
| michael@0 | 64 | CHECK(ToUintWidth<uint64_t>(pow(2.0, 116) + pow(2.0, 63)) == 0); |
| michael@0 | 65 | CHECK(ToUintWidth<uint64_t>(pow(2.0, 116) + pow(2.0, 64)) == 0); |
| michael@0 | 66 | return true; |
| michael@0 | 67 | } |
| michael@0 | 68 | END_TEST(testToUint64Large) |
