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author | Jiyoung Yun <jy910.yun@samsung.com> | 2016-11-23 19:09:09 +0900 |
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committer | Jiyoung Yun <jy910.yun@samsung.com> | 2016-11-23 19:09:09 +0900 |
commit | 4b4aad7217d3292650e77eec2cf4c198ea9c3b4b (patch) | |
tree | 98110734c91668dfdbb126fcc0e15ddbd93738ca /src/pal/tests/palsuite/c_runtime/ceil | |
parent | fa45f57ed55137c75ac870356a1b8f76c84b229c (diff) | |
download | coreclr-4b4aad7217d3292650e77eec2cf4c198ea9c3b4b.tar.gz coreclr-4b4aad7217d3292650e77eec2cf4c198ea9c3b4b.tar.bz2 coreclr-4b4aad7217d3292650e77eec2cf4c198ea9c3b4b.zip |
Imported Upstream version 1.1.0upstream/1.1.0
Diffstat (limited to 'src/pal/tests/palsuite/c_runtime/ceil')
4 files changed, 168 insertions, 0 deletions
diff --git a/src/pal/tests/palsuite/c_runtime/ceil/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/ceil/CMakeLists.txt new file mode 100644 index 0000000000..5e1ef7f28b --- /dev/null +++ b/src/pal/tests/palsuite/c_runtime/ceil/CMakeLists.txt @@ -0,0 +1,3 @@ +cmake_minimum_required(VERSION 2.8.12.2) + +add_subdirectory(test1) diff --git a/src/pal/tests/palsuite/c_runtime/ceil/test1/CMakeLists.txt b/src/pal/tests/palsuite/c_runtime/ceil/test1/CMakeLists.txt new file mode 100644 index 0000000000..c73ad1dbbe --- /dev/null +++ b/src/pal/tests/palsuite/c_runtime/ceil/test1/CMakeLists.txt @@ -0,0 +1,19 @@ +cmake_minimum_required(VERSION 2.8.12.2) + +set(CMAKE_INCLUDE_CURRENT_DIR ON) + +set(SOURCES + test1.c +) + +add_executable(paltest_ceil_test1 + ${SOURCES} +) + +add_dependencies(paltest_ceil_test1 coreclrpal) + +target_link_libraries(paltest_ceil_test1 + pthread + m + coreclrpal +) diff --git a/src/pal/tests/palsuite/c_runtime/ceil/test1/test1.c b/src/pal/tests/palsuite/c_runtime/ceil/test1/test1.c new file mode 100644 index 0000000000..e6e36e6e33 --- /dev/null +++ b/src/pal/tests/palsuite/c_runtime/ceil/test1/test1.c @@ -0,0 +1,132 @@ +// Licensed to the .NET Foundation under one or more agreements. +// The .NET Foundation licenses this file to you under the MIT license. +// See the LICENSE file in the project root for more information. + +/*============================================================================ +** +** Source: test1.c +** +** Purpose: Tests ceil with simple positive and negative values. Also tests +** extreme cases like extremely small values and positive and +** negative infinity. Makes sure that calling ceil on NaN returns +** NaN +** +**==========================================================================*/ + +#include <palsuite.h> + +// binary64 (double) has a machine epsilon of 2^-52 (approx. 2.22e-16). However, this +// is slightly too accurate when writing tests meant to run against libm implementations +// for various platforms. 2^-50 (approx. 8.88e-16) seems to be as accurate as we can get. +// +// The tests themselves will take PAL_EPSILON and adjust it according to the expected result +// so that the delta used for comparison will compare the most significant digits and ignore +// any digits that are outside the double precision range (15-17 digits). + +// For example, a test with an expect result in the format of 0.xxxxxxxxxxxxxxxxx will use +// PAL_EPSILON for the variance, while an expected result in the format of 0.0xxxxxxxxxxxxxxxxx +// will use PAL_EPSILON / 10 and and expected result in the format of x.xxxxxxxxxxxxxxxx will +// use PAL_EPSILON * 10. +#define PAL_EPSILON 8.8817841970012523e-16 + +#define PAL_NAN sqrt(-1.0) +#define PAL_POSINF -log(0.0) +#define PAL_NEGINF log(0.0) + +/** + * Helper test structure + */ +struct test +{ + double value; /* value to test the function with */ + double expected; /* expected result */ + double variance; /* maximum delta between the expected and actual result */ +}; + +/** + * validate + * + * test validation function + */ +void __cdecl validate(double value, double expected, double variance) +{ + double result = ceil(value); + + /* + * The test is valid when the difference between result + * and expected is less than or equal to variance + */ + double delta = fabs(result - expected); + + if (delta > variance) + { + Fail("ceil(%g) returned %20.17g when it should have returned %20.17g", + value, result, expected); + } +} + +/** + * validate + * + * test validation function for values returning NaN + */ +void __cdecl validate_isnan(double value) +{ + double result = ceil(value); + + if (!_isnan(result)) + { + Fail("ceil(%g) returned %20.17g when it should have returned %20.17g", + value, result, PAL_NAN); + } +} + +/** + * main + * + * executable entry point + */ +int __cdecl main(int argc, char *argv[]) +{ + struct test tests[] = + { + /* value expected variance */ + { 0.31830988618379067, 1, PAL_EPSILON * 10 }, // value: 1 / pi + { 0.43429448190325183, 1, PAL_EPSILON * 10 }, // value: log10(e) + { 0.63661977236758134, 1, PAL_EPSILON * 10 }, // value: 2 / pi + { 0.69314718055994531, 1, PAL_EPSILON * 10 }, // value: ln(2) + { 0.70710678118654752, 1, PAL_EPSILON * 10 }, // value: 1 / sqrt(2) + { 0.78539816339744831, 1, PAL_EPSILON * 10 }, // value: pi / 4 + { 1.1283791670955126, 2, PAL_EPSILON * 10 }, // value: 2 / sqrt(pi) + { 1.4142135623730950, 2, PAL_EPSILON * 10 }, // value: sqrt(2) + { 1.4426950408889634, 2, PAL_EPSILON * 10 }, // value: log2(e) + { 1.5707963267948966, 2, PAL_EPSILON * 10 }, // value: pi / 2 + { 2.3025850929940457, 3, PAL_EPSILON * 10 }, // value: ln(10) + { 2.7182818284590452, 3, PAL_EPSILON * 10 }, // value: e + { 3.1415926535897932, 4, PAL_EPSILON * 10 }, // value: pi + { PAL_POSINF, PAL_POSINF, 0 } + }; + + /* PAL initialization */ + if (PAL_Initialize(argc, argv) != 0) + { + return FAIL; + } + + validate( 0, 0, PAL_EPSILON); + validate(-0.0, 0, PAL_EPSILON); + + validate( 1, 1, PAL_EPSILON * 10); + validate(-1.0, -1, PAL_EPSILON * 10); + + for (int i = 0; i < (sizeof(tests) / sizeof(struct test)); i++) + { + validate( tests[i].value, tests[i].expected, tests[i].variance); + validate(-tests[i].value, 1 - tests[i].expected, tests[i].variance); + } + + validate_isnan(PAL_NAN); + + PAL_Terminate(); + return PASS; +} diff --git a/src/pal/tests/palsuite/c_runtime/ceil/test1/testinfo.dat b/src/pal/tests/palsuite/c_runtime/ceil/test1/testinfo.dat new file mode 100644 index 0000000000..84e80a9cb7 --- /dev/null +++ b/src/pal/tests/palsuite/c_runtime/ceil/test1/testinfo.dat @@ -0,0 +1,14 @@ +# Licensed to the .NET Foundation under one or more agreements. +# The .NET Foundation licenses this file to you under the MIT license. +# See the LICENSE file in the project root for more information. + +Version = 1.0 +Section = C Runtime +Function = ceil +Name = Test #1 for ceil +TYPE = DEFAULT +EXE1 = test1 +Description +=Tests ceil with simple positive and negative values. Also tests +=extreme cases like extremely small values and positive and negative +=infinity. Makes sure that calling ceil on NaN returns NaN |