libc/test/src/complex/CImagTest.h

   1 //===-- Utility class to test different flavors of cimag --------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef LLVM_LIBC_TEST_SRC_COMPLEX_CIMAGTEST_H
  10 #define LLVM_LIBC_TEST_SRC_COMPLEX_CIMAGTEST_H
  11
  12 #include "test/UnitTest/FEnvSafeTest.h"
  13 #include "test/UnitTest/FPMatcher.h"
  14 #include "test/UnitTest/Test.h"
  15
  16 #include "hdr/math_macros.h"
  17
  18 template <typename CFPT, typename FPT>
  19 class CImagTest : public LIBC_NAMESPACE::testing::FEnvSafeTest {
  20
  21   DECLARE_SPECIAL_CONSTANTS(FPT)
  22
  23 public:
  24   typedef FPT (*CImagFunc)(CFPT);
  25
  26   void testSpecialNumbers(CImagFunc func) {
  27     EXPECT_FP_EQ(func(CFPT(67.123 + aNaN * 1.0i)), aNaN);
  28     EXPECT_FP_EQ(func(CFPT(78.319 + neg_aNaN * 1.0i)), neg_aNaN);
  29     EXPECT_FP_EQ(func(CFPT(7813.131 + sNaN * 1.0i)), sNaN);
  30     EXPECT_FP_EQ(func(CFPT(7824.152 + neg_sNaN * 1.0i)), neg_sNaN);
  31     EXPECT_FP_EQ(func(CFPT(9024.2442 + inf * 1.0i)), inf);
  32     EXPECT_FP_EQ(func(CFPT(8923.124 + neg_inf * 1.0i)), neg_inf);
  33     EXPECT_FP_EQ(func(CFPT(782.124 + min_normal * 1.0i)), min_normal);
  34     EXPECT_FP_EQ(func(CFPT(2141.2352 + max_normal * 1.0i)), max_normal);
  35     EXPECT_FP_EQ(func(CFPT(341.134 + neg_max_normal * 1.0i)), neg_max_normal);
  36     EXPECT_FP_EQ(func(CFPT(781.142 + min_denormal * 1.0i)), min_denormal);
  37     EXPECT_FP_EQ(func(CFPT(781.134 + neg_min_denormal * 1.0i)),
  38                  neg_min_denormal);
  39     EXPECT_FP_EQ(func(CFPT(1241.112 + max_denormal * 1.0i)), max_denormal);
  40     EXPECT_FP_EQ(func(CFPT(121.121 + zero * 1.0i)), zero);
  41     EXPECT_FP_EQ(func(CFPT(neg_zero + zero * 1.0i)), zero);
  42     EXPECT_FP_EQ(func(CFPT(neg_zero + neg_zero * 1.0i)), neg_zero);
  43     EXPECT_FP_EQ(func(CFPT(zero + neg_zero * 1.0i)), neg_zero);
  44   }
  45
  46   void testRoundedNumbers(CImagFunc func) {
  47     EXPECT_FP_EQ(func((CFPT)(4523.1413 + 12413.1414i)), (FPT)(12413.1414));
  48     EXPECT_FP_EQ(func((CFPT)(-4523.1413 + 12413.1414i)), (FPT)(12413.1414));
  49     EXPECT_FP_EQ(func((CFPT)(4523.1413 - 12413.1414i)), (FPT)(-12413.1414));
  50     EXPECT_FP_EQ(func((CFPT)(-4523.1413 - 12413.1414i)), (FPT)(-12413.1414));
  51
  52     EXPECT_FP_EQ(func((CFPT)(3210.5678 + 9876.5432i)), (FPT)(9876.5432));
  53     EXPECT_FP_EQ(func((CFPT)(-3210.5678 + 9876.5432i)), (FPT)(9876.5432));
  54     EXPECT_FP_EQ(func((CFPT)(3210.5678 - 9876.5432i)), (FPT)(-9876.5432));
  55     EXPECT_FP_EQ(func((CFPT)(-3210.5678 - 9876.5432i)), (FPT)(-9876.5432));
  56
  57     EXPECT_FP_EQ(func((CFPT)(1234.4321 + 4321.1234i)), (FPT)(4321.1234));
  58     EXPECT_FP_EQ(func((CFPT)(-1234.4321 + 4321.1234i)), (FPT)(4321.1234));
  59     EXPECT_FP_EQ(func((CFPT)(1234.4321 - 4321.1234i)), (FPT)(-4321.1234));
  60     EXPECT_FP_EQ(func((CFPT)(-1234.4321 - 4321.1234i)), (FPT)(-4321.1234));
  61
  62     EXPECT_FP_EQ(func((CFPT)(6789.1234 + 8765.6789i)), (FPT)(8765.6789));
  63     EXPECT_FP_EQ(func((CFPT)(-6789.1234 + 8765.6789i)), (FPT)(8765.6789));
  64     EXPECT_FP_EQ(func((CFPT)(6789.1234 - 8765.6789i)), (FPT)(-8765.6789));
  65     EXPECT_FP_EQ(func((CFPT)(-6789.1234 - 8765.6789i)), (FPT)(-8765.6789));
  66   }
  67 };
  68
  69 #define LIST_CIMAG_TESTS(U, T, func)                                           \
  70   using LlvmLibcCImagTest = CImagTest<U, T>;                                   \
  71   TEST_F(LlvmLibcCImagTest, SpecialNumbers) { testSpecialNumbers(&func); }     \
  72   TEST_F(LlvmLibcCImagTest, RoundedNumbers) { testRoundedNumbers(&func); }
  73
  74 #endif // LLVM_LIBC_TEST_SRC_COMPLEX_CIMAGTEST_H