v1.3增加一个简单的越障模式

v1.3/lib/FastLED/tests/test_atomic.cpp

@@ -0,0 +1,16 @@
+
+// g++ --std=c++11 test.cpp
+
+#include "test.h"
+
+#include "fl/atomic.h"
+
+TEST_CASE("atomic") {
+  fl::atomic<int> atomic(0);
+  atomic.store(1);
+  REQUIRE(atomic.load() == 1);
+  atomic.store(2);
+  REQUIRE(atomic.load() == 2);
+  atomic.store(3);
+  REQUIRE(atomic.load() == 3);
+}