path ops work in progress

tests/PathOpsLineIntersectionTest.cpp

Index: tests/PathOpsLineIntersectionTest.cpp
diff --git a/tests/PathOpsLineIntersectionTest.cpp b/tests/PathOpsLineIntersectionTest.cpp
index ea3f7e07c60cc800c79ff6f0c933a5bfecce1efe..feb8dd0bcebea18b76e12043671635b6677ea5e6 100644
--- a/tests/PathOpsLineIntersectionTest.cpp
+++ b/tests/PathOpsLineIntersectionTest.cpp
@@ -11,6 +11,8 @@
 
 // FIXME: add tests for intersecting, non-intersecting, degenerate, coincident
 static const SkDLine tests[][2] = {
+    {{{{90,230}, {160,60}}}, {{{60,120}, {260,120}}}},
+    {{{{90,230}, {160,60}}}, {{{181.176468,120}, {135.294128,120}}}},
     {{{{181.1764678955078125f, 120}, {186.3661956787109375f, 134.7042236328125f}}},
      {{{175.8309783935546875f, 141.5211334228515625f}, {187.8782806396484375f, 133.7258148193359375f}}}},
 #if 0  // FIXME: these fail because one line is too short and appears quasi-coincident
@@ -33,6 +35,9 @@ static const SkDLine tests[][2] = {
 static const size_t tests_count = SK_ARRAY_COUNT(tests);
 
 static const SkDLine noIntersect[][2] = {
+   {{{{(double) (2 - 1e-6f),2}, {(double) (2 - 1e-6f),4}}},
+    {{{2,1}, {2,3}}}},
+
     {{{{0, 0}, {1, 0}}}, {{{3, 0}, {2, 0}}}},
     {{{{0, 0}, {0, 0}}}, {{{1, 0}, {2, 0}}}},
     {{{{0, 1}, {0, 1}}}, {{{0, 3}, {0, 2}}}},
@@ -43,6 +48,12 @@ static const SkDLine noIntersect[][2] = {
 static const size_t noIntersect_count = SK_ARRAY_COUNT(noIntersect);
 
 static const SkDLine coincidentTests[][2] = {
+   {{{{979.304871, 561}, {1036.69507, 291}}},
+    {{{985.681519, 531}, {982.159790, 547.568542}}}},
+
+   {{{{232.159805, 547.568542}, {235.681549, 531}}},
+    {{{286.695129,291}, {229.304855,561}}}},
+
     {{{{186.3661956787109375f, 134.7042236328125f}, {187.8782806396484375f, 133.7258148193359375f}}},
      {{{175.8309783935546875f, 141.5211334228515625f}, {187.8782806396484375f, 133.7258148193359375f}}}},
 
@@ -111,19 +122,11 @@ static void testOneCoincident(skiatest::Reporter* reporter, const SkDLine& line1
                               const SkDLine& line2) {
     SkASSERT(ValidLine(line1));
     SkASSERT(ValidLine(line2));
-    SkIntersections ts2;
-    int pts2 = ts2.intersect(line1, line2);
-    REPORTER_ASSERT(reporter, pts2 == 2);
-    REPORTER_ASSERT(reporter, pts2 == ts2.used());
-    check_results(reporter, line1, line2, ts2);
-#if 0
     SkIntersections ts;
     int pts = ts.intersect(line1, line2);
-    REPORTER_ASSERT(reporter, pts == pts2);
     REPORTER_ASSERT(reporter, pts == 2);
     REPORTER_ASSERT(reporter, pts == ts.used());
     check_results(reporter, line1, line2, ts);
-#endif
 }
 
 static void PathOpsLineIntersectionTest(skiatest::Reporter* reporter) {
@@ -154,9 +157,8 @@ static void PathOpsLineIntersectionTest(skiatest::Reporter* reporter) {
 static void PathOpsLineIntersectionOneOffTest(skiatest::Reporter* reporter) {
     int index = 0;
     SkASSERT(index < (int) tests_count);
-    const SkDLine& line1 = tests[index][0];
-    const SkDLine& line2 = tests[index][1];
-    testOne(reporter, line1, line2);
+    testOne(reporter, tests[index][0], tests[index][1]);
+    testOne(reporter, tests[1][0], tests[1][1]);
 }
 
 static void PathOpsLineIntersectionOneCoincidentTest(skiatest::Reporter* reporter) {