saving the old before blowing away

git-svn-id: http://skia.googlecode.com/svn/trunk@8565 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 71 insertions, 0 deletions

diff --git a/tests/PathOpsQuadReduceOrderTest.cpp b/tests/PathOpsQuadReduceOrderTest.cpp
new file mode 100644
index 0000000000..8ee817b627
--- /dev/null
+++ b/tests/PathOpsQuadReduceOrderTest.cpp
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+#include "PathOpsQuadIntersectionTestData.h"
+#include "SkIntersections.h"
+#include "SkPathOpsRect.h"
+#include "SkReduceOrder.h"
+#include "Test.h"
+
+static const SkDQuad testSet[] = {
+    {{{1, 1}, {2, 2}, {1, 1.000003}}},
+    {{{1, 0}, {2, 6}, {3, 0}}}
+};
+
+static const size_t testSetCount = sizeof(testSet) / sizeof(testSet[0]);
+
+static void oneOffTest(skiatest::Reporter* reporter) {
+    for (size_t index = 0; index < testSetCount; ++index) {
+        const SkDQuad& quad = testSet[index];
+        SkReduceOrder reducer;
+        SkDEBUGCODE(int result = ) reducer.reduce(quad, SkReduceOrder::kFill_Style);
+        SkASSERT(result == 3);
+    }
+}
+
+static void standardTestCases(skiatest::Reporter* reporter) {
+    size_t index;
+    SkReduceOrder reducer;
+    int order;
+    enum {
+        RunAll,
+        RunQuadraticLines,
+        RunQuadraticModLines,
+        RunNone
+    } run = RunAll;
+    int firstTestIndex = 0;
+#if 0
+    run = RunQuadraticLines;
+    firstTestIndex = 1;
+#endif
+    int firstQuadraticLineTest = run == RunAll ? 0 : run == RunQuadraticLines ? firstTestIndex
+            : SK_MaxS32;
+    int firstQuadraticModLineTest = run == RunAll ? 0 : run == RunQuadraticModLines ? firstTestIndex
+            : SK_MaxS32;
+
+    for (index = firstQuadraticLineTest; index < quadraticLines_count; ++index) {
+        const SkDQuad& quad = quadraticLines[index];
+        order = reducer.reduce(quad, SkReduceOrder::kFill_Style);
+        if (order != 2) {
+            printf("[%d] line quad order=%d\n", (int) index, order);
+        }
+    }
+    for (index = firstQuadraticModLineTest; index < quadraticModEpsilonLines_count; ++index) {
+        const SkDQuad& quad = quadraticModEpsilonLines[index];
+        order = reducer.reduce(quad, SkReduceOrder::kFill_Style);
+        if (order != 3) {
+            printf("[%d] line mod quad order=%d\n", (int) index, order);
+        }
+    }
+}
+
+void QuadReduceOrderTest(skiatest::Reporter* reporter) {
+    oneOffTest(reporter);
+    standardTestCases(reporter);
+}
+
+#include "TestClassDef.h"
+DEFINE_TESTCLASS("PathOpsReduceOrderQuad", ReduceOrderQuadTestClass, QuadReduceOrderTest)