blob: dc13b303f03df7eac83b328964bf386bbd71aadc [file] [log] [blame]
// Unit tests for src/core/SkPoint.cpp and its header
#include "SkPoint.h"
#include "Test.h"
// Tests that SkPoint::length() and SkPoint::Length() both return
// approximately expectedLength for this (x,y).
static void test_length(skiatest::Reporter* reporter, SkScalar x, SkScalar y,
SkScalar expectedLength) {
SkPoint point;
point.set(x, y);
SkScalar s1 = point.length();
SkScalar s2 = SkPoint::Length(x, y);
REPORTER_ASSERT(reporter, s1 == s2);
REPORTER_ASSERT(reporter, SkScalarNearlyEqual(s1, expectedLength));
}
// Tests SkPoint::Normalize() for this (x,y)
static void test_Normalize(skiatest::Reporter* reporter,
SkScalar x, SkScalar y) {
SkPoint point;
point.set(x, y);
SkScalar oldLength = point.length();
SkScalar returned = SkPoint::Normalize(&point);
SkScalar newLength = point.length();
REPORTER_ASSERT(reporter, returned == oldLength);
REPORTER_ASSERT(reporter, SkScalarNearlyEqual(newLength, SK_Scalar1));
}
void PointTest(skiatest::Reporter* reporter) {
test_length(reporter, SkIntToScalar(3), SkIntToScalar(4), SkIntToScalar(5));
test_length(reporter, SkFloatToScalar(0.6), SkFloatToScalar(0.8),
SK_Scalar1);
test_Normalize(reporter, SkIntToScalar(3), SkIntToScalar(4));
test_Normalize(reporter, SkFloatToScalar(0.6), SkFloatToScalar(0.8));
}
#include "TestClassDef.h"
DEFINE_TESTCLASS("Point", PointTestClass, PointTest)