| // Tencent is pleased to support the open source community by making RapidJSON available. |
| // |
| // Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. |
| // |
| // Licensed under the MIT License (the "License"); you may not use this file except |
| // in compliance with the License. You may obtain a copy of the License at |
| // |
| // http://opensource.org/licenses/MIT |
| // |
| // Unless required by applicable law or agreed to in writing, software distributed |
| // under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR |
| // CONDITIONS OF ANY KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations under the License. |
| |
| #include "unittest.h" |
| #include "rapidjson/internal/dtoa.h" |
| |
| #ifdef __GNUC__ |
| RAPIDJSON_DIAG_PUSH |
| RAPIDJSON_DIAG_OFF(type-limits) |
| #endif |
| |
| using namespace rapidjson::internal; |
| |
| TEST(dtoa, normal) { |
| char buffer[30]; |
| |
| #define TEST_DTOA(d, a)\ |
| *dtoa(d, buffer) = '\0';\ |
| EXPECT_STREQ(a, buffer) |
| |
| TEST_DTOA(0.0, "0.0"); |
| TEST_DTOA(-0.0, "-0.0"); |
| TEST_DTOA(1.0, "1.0"); |
| TEST_DTOA(-1.0, "-1.0"); |
| TEST_DTOA(1.2345, "1.2345"); |
| TEST_DTOA(1.2345678, "1.2345678"); |
| TEST_DTOA(0.123456789012, "0.123456789012"); |
| TEST_DTOA(1234567.8, "1234567.8"); |
| TEST_DTOA(-79.39773355813419, "-79.39773355813419"); |
| TEST_DTOA(0.000001, "0.000001"); |
| TEST_DTOA(0.0000001, "1e-7"); |
| TEST_DTOA(1e30, "1e30"); |
| TEST_DTOA(1.234567890123456e30, "1.234567890123456e30"); |
| TEST_DTOA(5e-324, "5e-324"); // Min subnormal positive double |
| TEST_DTOA(2.225073858507201e-308, "2.225073858507201e-308"); // Max subnormal positive double |
| TEST_DTOA(2.2250738585072014e-308, "2.2250738585072014e-308"); // Min normal positive double |
| TEST_DTOA(1.7976931348623157e308, "1.7976931348623157e308"); // Max double |
| |
| #undef TEST_DTOA |
| } |
| |
| TEST(dtoa, maxDecimalPlaces) { |
| char buffer[30]; |
| |
| #define TEST_DTOA(m, d, a)\ |
| *dtoa(d, buffer, m) = '\0';\ |
| EXPECT_STREQ(a, buffer) |
| |
| TEST_DTOA(3, 0.0, "0.0"); |
| TEST_DTOA(1, 0.0, "0.0"); |
| TEST_DTOA(3, -0.0, "-0.0"); |
| TEST_DTOA(3, 1.0, "1.0"); |
| TEST_DTOA(3, -1.0, "-1.0"); |
| TEST_DTOA(3, 1.2345, "1.234"); |
| TEST_DTOA(2, 1.2345, "1.23"); |
| TEST_DTOA(1, 1.2345, "1.2"); |
| TEST_DTOA(3, 1.2345678, "1.234"); |
| TEST_DTOA(3, 1.0001, "1.0"); |
| TEST_DTOA(2, 1.0001, "1.0"); |
| TEST_DTOA(1, 1.0001, "1.0"); |
| TEST_DTOA(3, 0.123456789012, "0.123"); |
| TEST_DTOA(2, 0.123456789012, "0.12"); |
| TEST_DTOA(1, 0.123456789012, "0.1"); |
| TEST_DTOA(4, 0.0001, "0.0001"); |
| TEST_DTOA(3, 0.0001, "0.0"); |
| TEST_DTOA(2, 0.0001, "0.0"); |
| TEST_DTOA(1, 0.0001, "0.0"); |
| TEST_DTOA(3, 1234567.8, "1234567.8"); |
| TEST_DTOA(3, 1e30, "1e30"); |
| TEST_DTOA(3, 5e-324, "0.0"); // Min subnormal positive double |
| TEST_DTOA(3, 2.225073858507201e-308, "0.0"); // Max subnormal positive double |
| TEST_DTOA(3, 2.2250738585072014e-308, "0.0"); // Min normal positive double |
| TEST_DTOA(3, 1.7976931348623157e308, "1.7976931348623157e308"); // Max double |
| TEST_DTOA(5, -0.14000000000000001, "-0.14"); |
| TEST_DTOA(4, -0.14000000000000001, "-0.14"); |
| TEST_DTOA(3, -0.14000000000000001, "-0.14"); |
| TEST_DTOA(3, -0.10000000000000001, "-0.1"); |
| TEST_DTOA(2, -0.10000000000000001, "-0.1"); |
| TEST_DTOA(1, -0.10000000000000001, "-0.1"); |
| |
| #undef TEST_DTOA |
| } |
| |
| |
| #ifdef __GNUC__ |
| RAPIDJSON_DIAG_POP |
| #endif |