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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#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.isFinite());
}
// Tests that isFinite() will reject any rect with +/-inf values
// as one of its coordinates.
static void TestInfRect(skiatest::Reporter* reporter) {
#ifdef SK_SCALAR_IS_FLOAT
float inf = 1 / make_zero(); // infinity
float nan = inf * 0;
SkASSERT(!(nan == nan));
#else
SkFixed inf = SK_FixedNaN;
SkFixed nan = SK_FixedNaN;
#endif
SkScalar small = SkIntToScalar(10);
SkScalar big = SkIntToScalar(100);
REPORTER_ASSERT(reporter, SkRect::MakeEmpty().isFinite());
SkRect rect = SkRect::MakeXYWH(small, small, big, big);
REPORTER_ASSERT(reporter, rect.isFinite());
const SkScalar invalid[] = { nan, inf, -inf };
for (size_t i = 0; i < SK_ARRAY_COUNT(invalid); ++i) {
check_invalid(reporter, small, small, big, invalid[i]);
check_invalid(reporter, small, small, invalid[i], big);
check_invalid(reporter, small, invalid[i], big, big);
check_invalid(reporter, invalid[i], small, big, big);
}
}
// need tests for SkStrSearch
#include "TestClassDef.h"
DEFINE_TESTCLASS("InfRect", InfRectTestClass, TestInfRect)
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