Extend math test to ensure our min/max/pin handle non-finites

Bug: skia:
Change-Id: I4fe544c32da071d161229b12f7b90a3296b0d499
Reviewed-on: https://skia-review.googlesource.com/112140
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/tests/MathTest.cpp b/tests/MathTest.cpp
index 31bb45308c..94b15207f7 100644
--- a/tests/MathTest.cpp
+++ b/tests/MathTest.cpp
@@ -691,6 +691,17 @@ DEF_TEST(FloatSaturate32, reporter) {
     for (auto r : recs) {
         int i = sk_float_saturate2int(r.fFloat);
         REPORTER_ASSERT(reporter, r.fExpectedInt == i);
+
+        // ensure that these bound even non-finite values (including NaN)
+
+        SkScalar mx = SkTMax<SkScalar>(r.fFloat, 50);
+        REPORTER_ASSERT(reporter, mx >= 50);
+
+        SkScalar mn = SkTMin<SkScalar>(r.fFloat, 50);
+        REPORTER_ASSERT(reporter, mn <= 50);
+
+        SkScalar p = SkTPin<SkScalar>(r.fFloat, 0, 100);
+        REPORTER_ASSERT(reporter, p >= 0 && p <= 100);
     }
 }