skia2/tests/InfRectTest.cpp
reed@android.com d413445531 update to work correctly for scalar == fixed or float
git-svn-id: http://skia.googlecode.com/svn/trunk@780 2bbb7eff-a529-9590-31e7-b0007b416f81
2011-02-09 02:24:26 +00:00

45 lines
1.4 KiB
C++

#include "Test.h"
#include "SkRect.h"
#ifdef SK_SCALAR_IS_FLOAT
static float make_zero() {
return sk_float_sin(0);
}
#endif
static void check_invalid(skiatest::Reporter* reporter,
SkScalar l, SkScalar t, SkScalar r, SkScalar b) {
SkRect rect;
rect.set(l, t, r, b);
REPORTER_ASSERT(reporter, !rect.hasValidCoordinates());
}
// Tests that hasValidCoordinates() will reject any rect with +/-inf values
// as one of its coordinates.
static void TestInfRect(skiatest::Reporter* reporter) {
#ifdef SK_SCALAR_IS_FLOAT
float invalid = 1 / make_zero(); // infinity
#else
SkFixed invalid = SK_FixedNaN;
#endif
SkScalar small = SkIntToScalar(10);
SkScalar big = SkIntToScalar(100);
SkRect rect = SkRect::MakeXYWH(small, small, big, big);
REPORTER_ASSERT(reporter, rect.hasValidCoordinates());
check_invalid(reporter, small, small, big, invalid);
check_invalid(reporter, small, small, invalid, big);
check_invalid(reporter, small, invalid, big, big);
check_invalid(reporter, invalid, small, big, big);
check_invalid(reporter, small, small, big, -invalid);
check_invalid(reporter, small, small, -invalid, big);
check_invalid(reporter, small, -invalid, big, big);
check_invalid(reporter, -invalid, small, big, big);
}
// need tests for SkStrSearch
#include "TestClassDef.h"
DEFINE_TESTCLASS("InfRect", InfRectTestClass, TestInfRect)