SkValue: SkXfermode

tests/ValueTest.cpp

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
+#include "SkValue.h"
 #include "Test.h"
-#include "SkValue.h"
+
+static const SkValue::Type example_type = SkValue::Type(0x80000001);
+
+enum { kExampleS32, kExampleF32, kExampleU32, kExampleObject};
+
+#define EXAMPLES(FN)                \

[mtklein, 2016/01/15 20:42:20]

Let's expand this out?

+    FN(kExampleS32, S32, s32, -123) \
+    FN(kExampleF32, F32, f32, 0.5f) \
+    FN(kExampleU32, U32, u32, 1234) \
+
+static SkValue make_example(skiatest::Reporter* r, int level = 4) {
+    auto value = SkValue::Object(example_type);
+    value.set(kExampleU32, SkValue::FromU32(1000));
+
+    #define FN(KEY, FNAME, MNAME, VALUE) \
+        value.set(KEY, SkValue::From##FNAME(VALUE));
+    EXAMPLES(FN)
+    #undef FN
+    if (level > 0) {
+        value.set(kExampleObject, make_example(r, 0));
+        value.set(kExampleObject, make_example(r, level - 1)); // replace
+    }
+    return value;
+}
+
+DEF_TEST(Value, r) {
+    SkValue val = make_example(r);
+    REPORTER_ASSERT(r, example_type == val.type());
+    val.set(4321, SkValue());
+    SkValue valCopy = val;
+    REPORTER_ASSERT(r, example_type == valCopy.type());
+    #define FN(KEY, FNAME, MNAME, VALUE) {                \
+            const SkValue* v = val.get(KEY);              \
+            REPORTER_ASSERT(r, v && VALUE == v->MNAME()); \
+        }
+    EXAMPLES(FN)
+    #undef FN
+}