From a530fc9199a47f3c31c3446d4e9e5d0b7e6cbb1d Mon Sep 17 00:00:00 2001
From: Pierre Wendling <[EMAIL REDACTED]>
Date: Mon, 9 May 2022 22:56:44 -0400
Subject: [PATCH] Test: Add Copysign tests to math suite.
---
test/testautomation_math.c | 95 ++++++++++++++++++++++++++++++++++++++
1 file changed, 95 insertions(+)
diff --git a/test/testautomation_math.c b/test/testautomation_math.c
index 8baf1189159..b8fd3f40ebe 100644
--- a/test/testautomation_math.c
+++ b/test/testautomation_math.c
@@ -585,6 +585,85 @@ fabs_rangeTest(void *args)
return TEST_COMPLETED;
}
+/* SDL_copysign tests functions */
+
+/**
+ * \brief Checks edge cases (0 and infinity).
+ */
+static int
+copysign_edgeCases(void *args)
+{
+ double result;
+
+ result = SDL_copysign(INFINITY, -1.0);
+ SDLTest_AssertCheck(-INFINITY == result, "Copysign(%f,%.1f), expected %f, got %f",
+ INFINITY, -1.0, -INFINITY, result);
+ result = SDL_copysign(-INFINITY, 1.0);
+ SDLTest_AssertCheck(INFINITY == result, "Copysign(%f,%.1f), expected %f, got %f",
+ -INFINITY, 1.0, INFINITY, result);
+
+ result = SDL_copysign(0.0, -1.0);
+ SDLTest_AssertCheck(0.0 == result, "Copysign(%f,%.1f), expected %f, got %f",
+ 0.0, -1.0, 0.0, result);
+ result = SDL_copysign(-0.0, 1.0);
+ SDLTest_AssertCheck(0.0 == result, "Copysign(%f,%.1f), expected %f, got %f",
+ -0.0, 1.0, 0.0, result);
+
+ return TEST_COMPLETED;
+}
+
+/**
+ * \brief Checks the NaN cases.
+ */
+static int
+copysign_nanCase(void *args)
+{
+ SDLTest_AssertCheck(isnan(SDL_copysign(NAN, 1.0)), "Copysign(nan,1.0), expected nan");
+ SDLTest_AssertCheck(isnan(SDL_copysign(NAN, -1.0)), "Copysign(nan,-1.0), expected nan");
+ return TEST_COMPLETED;
+}
+
+/**
+ * \brief Checks a range of values between 0 and UINT32_MAX
+ */
+static int
+copysign_rangeTest(void *args)
+{
+ const Uint32 ITERATIONS = 10000000;
+ const Uint32 STEP = SDL_MAX_UINT32 / ITERATIONS;
+ Uint32 i;
+ double test_value = 0.0;
+
+ SDLTest_AssertPass("Fabs: Testing a range of %u values with %u steps",
+ ITERATIONS, STEP);
+
+ for (i = 0; i < ITERATIONS; i++, test_value += STEP) {
+ double result;
+ /* These are tested elsewhere */
+ if (isnan(test_value) || isinf(test_value)) {
+ continue;
+ }
+
+ /* Only log failures to save performances */
+ result = SDL_copysign(test_value, 1.0);
+ if (result != test_value) {
+ SDLTest_AssertPass("Copysign(%.1f,%.1f), expected %.1f, got %.1f",
+ test_value, 1.0,
+ test_value, result);
+ return TEST_ABORTED;
+ }
+
+ result = SDL_copysign(test_value, -1.0);
+ if (result != -test_value) {
+ SDLTest_AssertPass("Copysign(%.1f,%.1f), expected %.1f, got %.1f",
+ test_value, -1.0,
+ -test_value, result);
+ return TEST_ABORTED;
+ }
+ }
+ return TEST_COMPLETED;
+}
+
/* ================= Test References ================== */
/* SDL_floor test cases */
@@ -694,12 +773,28 @@ static const SDLTest_TestCaseReference fabsTest3 = {
"Check a range of positive integer", TEST_ENABLED
};
+/* SDL_copysign test cases */
+
+static const SDLTest_TestCaseReference copysignTest1 = {
+ (SDLTest_TestCaseFp) copysign_edgeCases, "copysign_edgeCases",
+ "Check positive and negative infinity and 0", TEST_ENABLED
+};
+static const SDLTest_TestCaseReference copysignTest2 = {
+ (SDLTest_TestCaseFp) copysign_nanCase, "copysign_nanCase",
+ "Check the NaN special case", TEST_ENABLED
+};
+static const SDLTest_TestCaseReference copysignTest3 = {
+ (SDLTest_TestCaseFp) copysign_rangeTest, "copysign_rangeTest",
+ "Check a range of positive integer", TEST_ENABLED
+};
+
static const SDLTest_TestCaseReference *mathTests[] = {
&floorTest1, &floorTest2, &floorTest3, &floorTest4, &floorTest5,
&ceilTest1, &ceilTest2, &ceilTest3, &ceilTest4, &ceilTest5,
&truncTest1, &truncTest2, &truncTest3, &truncTest4, &truncTest5,
&roundTest1, &roundTest2, &roundTest3, &roundTest4, &roundTest5,
&fabsTest1, &fabsTest2, &fabsTest3,
+ ©signTest1, ©signTest2, ©signTest3,
NULL
};