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-rw-r--r--tests/auto/testlib/selftests/float/tst_float.cpp187
1 files changed, 76 insertions, 111 deletions
diff --git a/tests/auto/testlib/selftests/float/tst_float.cpp b/tests/auto/testlib/selftests/float/tst_float.cpp
index 49d00ac0e0..cefd8a57c4 100644
--- a/tests/auto/testlib/selftests/float/tst_float.cpp
+++ b/tests/auto/testlib/selftests/float/tst_float.cpp
@@ -46,6 +46,55 @@ private slots:
void compareFloatTests_data() const;
};
+template<typename F>
+static void nonFinite_data(F zero, F one)
+{
+ using Bounds = std::numeric_limits<F>;
+
+ // QCOMPARE special-cases non-finite values
+ if (Bounds::has_quiet_NaN) {
+ const F nan = Bounds::quiet_NaN();
+ QTest::newRow("should PASS: NaN == NaN") << nan << nan;
+ QTest::newRow("should FAIL: NaN != 0") << nan << zero;
+ QTest::newRow("should FAIL: 0 != NaN") << zero << nan;
+ QTest::newRow("should FAIL: NaN != 1") << nan << one;
+ QTest::newRow("should FAIL: 1 != NaN") << one << nan;
+ }
+
+ if (Bounds::has_infinity) {
+ const F uge = Bounds::infinity();
+ QTest::newRow("should PASS: inf == inf") << uge << uge;
+ QTest::newRow("should PASS: -inf == -inf") << -uge << -uge;
+ QTest::newRow("should FAIL: inf != -inf") << uge << -uge;
+ QTest::newRow("should FAIL: -inf != inf") << -uge << uge;
+ if (Bounds::has_quiet_NaN) {
+ const F nan = Bounds::quiet_NaN();
+ QTest::newRow("should FAIL: inf != nan") << uge << nan;
+ QTest::newRow("should FAIL: nan != inf") << nan << uge;
+ QTest::newRow("should FAIL: -inf != nan") << -uge << nan;
+ QTest::newRow("should FAIL: nan != -inf") << nan << -uge;
+ }
+ QTest::newRow("should FAIL: inf != 0") << uge << zero;
+ QTest::newRow("should FAIL: 0 != inf") << zero << uge;
+ QTest::newRow("should FAIL: -inf != 0") << -uge << zero;
+ QTest::newRow("should FAIL: 0 != -inf") << zero << -uge;
+ QTest::newRow("should FAIL: inf != 1") << uge << one;
+ QTest::newRow("should FAIL: 1 != inf") << one << uge;
+ QTest::newRow("should FAIL: -inf != 1") << -uge << one;
+ QTest::newRow("should FAIL: 1 != -inf") << one << -uge;
+
+ const F big = Bounds::max();
+ QTest::newRow("should FAIL: inf != max") << uge << big;
+ QTest::newRow("should FAIL: inf != -max") << uge << -big;
+ QTest::newRow("should FAIL: max != inf") << big << uge;
+ QTest::newRow("should FAIL: -max != inf") << -big << uge;
+ QTest::newRow("should FAIL: -inf != max") << -uge << big;
+ QTest::newRow("should FAIL: -inf != -max") << -uge << -big;
+ QTest::newRow("should FAIL: max != -inf") << big << -uge;
+ QTest::newRow("should FAIL: -max != -inf") << -big << -uge;
+ }
+}
+
void tst_float::doubleComparisons() const
{
QFETCH(double, operandLeft);
@@ -58,65 +107,26 @@ void tst_float::doubleComparisons_data() const
{
QTest::addColumn<double>("operandLeft");
QTest::addColumn<double>("operandRight");
+ double zero(0.), one(1.);
- QTest::newRow("should PASS 1") << 0. << 0.;
- QTest::newRow("should FAIL 1") << 1.00000 << 3.00000;
- QTest::newRow("should FAIL 2") << 1.00000e-7 << 3.00000e-7;
+ QTest::newRow("should FAIL 1") << one << 3.;
+ QTest::newRow("should PASS 1") << zero << zero;
+ QTest::newRow("should FAIL 2") << 1.e-7 << 3.e-7;
// QCOMPARE for doubles uses qFuzzyCompare(), which succeeds if the numbers
// differ by no more than 1e-12 times the smaller value. Thus
// QCOMPARE(1e12-2, 1e12-1) should fail, while QCOMPARE(1e12+1, 1e12+2)
// should pass.
- QTest::newRow("should PASS 2") << 1e12 + 1. << 1e12 + 2.;
- QTest::newRow("should FAIL 3") << 1e12 - 1. << 1e12 - 2.;
+ QTest::newRow("should PASS 2") << 1e12 + one << 1e12 + 2.;
+ QTest::newRow("should FAIL 3") << 1e12 - one << 1e12 - 2.;
// ... but rounding makes that a bit unrelaible when scaled close to the bounds.
QTest::newRow("should PASS 3") << 1e-310 + 1e-322 << 1e-310 + 2e-322;
QTest::newRow("should FAIL 4") << 1e-310 - 1e-322 << 1e-310 - 3e-322;
QTest::newRow("should PASS 4") << 1e307 + 1e295 << 1e307 + 2e295;
QTest::newRow("should FAIL 5") << 1e307 - 1e295 << 1e307 - 3e295;
- // QCOMPARE special-cases non-finite values
- if (std::numeric_limits<double>::has_quiet_NaN) {
- const double nan = std::numeric_limits<double>::quiet_NaN();
- QTest::newRow("should PASS: NaN == NaN") << nan << nan;
- QTest::newRow("should FAIL: NaN != 0") << nan << 0.;
- QTest::newRow("should FAIL: 0 != NaN") << 0. << nan;
- QTest::newRow("should FAIL: NaN != 1") << nan << 1.;
- QTest::newRow("should FAIL: 1 != NaN") << 1. << nan;
- }
- if (std::numeric_limits<double>::has_infinity) {
- const double uge = std::numeric_limits<double>::infinity();
- QTest::newRow("should PASS: inf == inf") << uge << uge;
- QTest::newRow("should PASS: -inf == -inf") << -uge << -uge;
- QTest::newRow("should FAIL: inf != -inf") << uge << -uge;
- QTest::newRow("should FAIL: -inf != inf") << -uge << uge;
- if (std::numeric_limits<double>::has_quiet_NaN) {
- const double nan = std::numeric_limits<double>::quiet_NaN();
- QTest::newRow("should FAIL: inf != nan") << uge << nan;
- QTest::newRow("should FAIL: nan != inf") << nan << uge;
- QTest::newRow("should FAIL: -inf != nan") << -uge << nan;
- QTest::newRow("should FAIL: nan != -inf") << nan << -uge;
- }
- QTest::newRow("should FAIL: inf != 0") << uge << 0.;
- QTest::newRow("should FAIL: 0 != inf") << 0. << uge;
- QTest::newRow("should FAIL: -inf != 0") << -uge << 0.;
- QTest::newRow("should FAIL: 0 != -inf") << 0. << -uge;
- QTest::newRow("should FAIL: inf != 1") << uge << 1.;
- QTest::newRow("should FAIL: 1 != inf") << 1. << uge;
- QTest::newRow("should FAIL: -inf != 1") << -uge << 1.;
- QTest::newRow("should FAIL: 1 != -inf") << 1. << -uge;
-
- const double big = std::numeric_limits<double>::max();
- QTest::newRow("should FAIL: inf != max") << uge << big;
- QTest::newRow("should FAIL: inf != -max") << uge << -big;
- QTest::newRow("should FAIL: max != inf") << big << uge;
- QTest::newRow("should FAIL: -max != inf") << -big << uge;
- QTest::newRow("should FAIL: -inf != max") << -uge << big;
- QTest::newRow("should FAIL: -inf != -max") << -uge << -big;
- QTest::newRow("should FAIL: max != -inf") << big << -uge;
- QTest::newRow("should FAIL: -max != -inf") << -big << -uge;
- }
+ nonFinite_data(zero, one);
}
void tst_float::floatComparisons() const
@@ -131,65 +141,26 @@ void tst_float::floatComparisons_data() const
{
QTest::addColumn<float>("operandLeft");
QTest::addColumn<float>("operandRight");
+ float zero(0.f), one(1.f);
- QTest::newRow("should FAIL 1") << 1.00000f << 3.00000f;
- QTest::newRow("should PASS 1") << 0.f << 0.f;
- QTest::newRow("should FAIL 2") << 1.00000e-7f << 3.00000e-7f;
+ QTest::newRow("should FAIL 1") << one << 3.f;
+ QTest::newRow("should PASS 1") << zero << zero;
+ QTest::newRow("should FAIL 2") << 1.e-7f << 3.e-7f;
// QCOMPARE for floats uses qFuzzyCompare(), which succeeds if the numbers
// differ by no more than 1e-5 times the smaller value. Thus
// QCOMPARE(1e5-2, 1e5-1) should fail, while QCOMPARE(1e5+1, 1e5+2)
// should pass.
- QTest::newRow("should PASS 2") << 1e5f + 1.f << 1e5f + 2.f;
- QTest::newRow("should FAIL 3") << 1e5f - 1.f << 1e5f - 2.f;
+ QTest::newRow("should PASS 2") << 1e5f + one << 1e5f + 2.f;
+ QTest::newRow("should FAIL 3") << 1e5f - one << 1e5f - 2.f;
// ... but rounding makes that a bit unrelaible when scaled close to the bounds.
QTest::newRow("should PASS 3") << 1e-39f + 1e-44f << 1e-39f + 2e-44f;
QTest::newRow("should FAIL 4") << 1e-39f - 1e-44f << 1e-39f - 3e-44f;
QTest::newRow("should PASS 4") << 1e38f + 1e33f << 1e38f + 2e33f;
QTest::newRow("should FAIL 5") << 1e38f - 1e33f << 1e38f - 3e33f;
- // QCOMPARE special-cases non-finite values
- if (std::numeric_limits<float>::has_quiet_NaN) {
- const float nan = std::numeric_limits<float>::quiet_NaN();
- QTest::newRow("should PASS: NaN == NaN") << nan << nan;
- QTest::newRow("should FAIL: NaN != 0") << nan << 0.f;
- QTest::newRow("should FAIL: 0 != NaN") << 0.f << nan;
- QTest::newRow("should FAIL: NaN != 1") << nan << 1.f;
- QTest::newRow("should FAIL: 1 != NaN") << 1.f << nan;
- }
- if (std::numeric_limits<float>::has_infinity) {
- const float uge = std::numeric_limits<float>::infinity();
- QTest::newRow("should PASS: inf == inf") << uge << uge;
- QTest::newRow("should PASS: -inf == -inf") << -uge << -uge;
- QTest::newRow("should FAIL: inf != -inf") << uge << -uge;
- QTest::newRow("should FAIL: -inf != inf") << -uge << uge;
- if (std::numeric_limits<float>::has_quiet_NaN) {
- const float nan = std::numeric_limits<float>::quiet_NaN();
- QTest::newRow("should FAIL: inf != nan") << uge << nan;
- QTest::newRow("should FAIL: nan != inf") << nan << uge;
- QTest::newRow("should FAIL: -inf != nan") << -uge << nan;
- QTest::newRow("should FAIL: nan != -inf") << nan << -uge;
- }
- QTest::newRow("should FAIL: inf != 0") << uge << 0.f;
- QTest::newRow("should FAIL: 0 != inf") << 0.f << uge;
- QTest::newRow("should FAIL: -inf != 0") << -uge << 0.f;
- QTest::newRow("should FAIL: 0 != -inf") << 0.f << -uge;
- QTest::newRow("should FAIL: inf != 1") << uge << 1.f;
- QTest::newRow("should FAIL: 1 != inf") << 1.f << uge;
- QTest::newRow("should FAIL: -inf != 1") << -uge << 1.f;
- QTest::newRow("should FAIL: 1 != -inf") << 1.f << -uge;
-
- const float big = std::numeric_limits<float>::max();
- QTest::newRow("should FAIL: inf != max") << uge << big;
- QTest::newRow("should FAIL: inf != -max") << uge << -big;
- QTest::newRow("should FAIL: max != inf") << big << uge;
- QTest::newRow("should FAIL: -max != inf") << -big << uge;
- QTest::newRow("should FAIL: -inf != max") << -uge << big;
- QTest::newRow("should FAIL: -inf != -max") << -uge << -big;
- QTest::newRow("should FAIL: max != -inf") << big << -uge;
- QTest::newRow("should FAIL: -max != -inf") << -big << -uge;
- }
+ nonFinite_data(zero, one);
}
void tst_float::float16Comparisons() const
@@ -204,28 +175,22 @@ void tst_float::float16Comparisons_data() const
{
QTest::addColumn<qfloat16>("operandLeft");
QTest::addColumn<qfloat16>("operandRight");
+ qfloat16 zero(0), one(1);
- QTest::newRow("should SUCCEED 1")
- << qfloat16(0)
- << qfloat16(0);
-
- QTest::newRow("should FAIL 1")
- << qfloat16(1.000)
- << qfloat16(3.000);
-
- QTest::newRow("should FAIL 2")
- << qfloat16(1.000e-4f)
- << qfloat16(3.000e-4f);
+ QTest::newRow("should FAIL 1") << one << qfloat16(3);
+ QTest::newRow("should PASS 1") << zero << zero;
+ QTest::newRow("should FAIL 2") << qfloat16(1e-4f) << qfloat16(3e-4f);
// QCOMPARE for qfloat16s uses qFuzzyCompare()
-
- QTest::newRow("should FAIL 3")
- << qfloat16(98)
- << qfloat16(99);
-
- QTest::newRow("should SUCCEED 2")
- << qfloat16(1001)
- << qfloat16(1002);
+ QTest::newRow("should PASS 2") << qfloat16(1001) << qfloat16(1002);
+ QTest::newRow("should FAIL 3") << qfloat16(98) << qfloat16(99);
+ // ... which gets a bit unreliable near to the type's bounds
+ QTest::newRow("should PASS 3") << qfloat16(6e-5f) + qfloat16(6e-7f) << qfloat16(6e-5f) + qfloat16(11e-7f);
+ QTest::newRow("should FAIL 4") << qfloat16(6e-5f) - qfloat16(7e-7f) << qfloat16(6e-5f) - qfloat16(13e-7f);
+ QTest::newRow("should PASS 4") << qfloat16(6e4) + qfloat16(700) << qfloat16(6e4) + qfloat16(1200);
+ QTest::newRow("should FAIL 5") << qfloat16(6e4) - qfloat16(600) << qfloat16(6e4) - qfloat16(1200);
+
+ nonFinite_data(zero, one);
}
void tst_float::compareFloatTests() const
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-07 18:52:09 +0000