Added tests of StaticJsonBuffer

test/StaticJsonBuffer_Basic_Tests.cpp

@@ -0,0 +1,59 @@
+// Copyright Benoit Blanchon 2014
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+
+#include <gtest/gtest.h>
+
+#define protected public
+#include <ArduinoJson/StaticJsonBuffer.hpp>
+
+using namespace ArduinoJson;
+
+class StaticJsonBuffer_Basic_Tests : public testing::Test {
+ protected:
+  StaticJsonBuffer<42> buffer;
+};
+
+TEST_F(StaticJsonBuffer_Basic_Tests, CapacityMatchTemplateParameter) {
+  ASSERT_EQ(42, buffer.capacity());
+}
+
+TEST_F(StaticJsonBuffer_Basic_Tests, InitialSizeIsZero) {
+  ASSERT_EQ(0, buffer.size());
+}
+
+TEST_F(StaticJsonBuffer_Basic_Tests, GrowsAfterAlloc) {
+  buffer.alloc(1);
+  ASSERT_EQ(1, buffer.size());
+  buffer.alloc(1);
+  ASSERT_EQ(2, buffer.size());
+}
+
+TEST_F(StaticJsonBuffer_Basic_Tests, DoesntGrowWhenFull) {
+  buffer.alloc(42);
+  buffer.alloc(1);
+  ASSERT_EQ(42, buffer.size());
+}
+
+TEST_F(StaticJsonBuffer_Basic_Tests, DoesntGrowWhenTooSmall) {
+  buffer.alloc(43);
+  ASSERT_EQ(0, buffer.size());
+}
+
+TEST_F(StaticJsonBuffer_Basic_Tests, ReturnsNonNull) {
+  void *p = buffer.alloc(42);
+  ASSERT_NE(static_cast<void *>(0), p);
+}
+
+TEST_F(StaticJsonBuffer_Basic_Tests, ReturnsNullWhenFull) {
+  buffer.alloc(42);
+  void *p = buffer.alloc(1);
+  ASSERT_EQ(NULL, p);
+}
+
+TEST_F(StaticJsonBuffer_Basic_Tests, ReturnsNullWhenTooSmall) {
+  void *p = buffer.alloc(43);
+  ASSERT_EQ(NULL, p);
+}

test/StaticJsonBuffer_Object_Tests.cpp

@@ -15,18 +15,6 @@ const size_t SIZEOF_TWO_OBJECTS = 2 * SIZEOF_ONE_OBJECT;
 const size_t SIZEOF_OBJECT_WITH_ONE_VALUE = JSON_OBJECT_SIZE(1);
 const size_t SIZEOF_OBJECT_WITH_TWO_VALUES = JSON_OBJECT_SIZE(2);
 
-TEST(StaticJsonBuffer_Object_Tests, CapacityMatchTemplateParameter) {
-  StaticJsonBuffer<42> json;
-
-  EXPECT_EQ(42, json.capacity());
-}
-
-TEST(StaticJsonBuffer_Object_Tests, InitialSizeIsZero) {
-  StaticJsonBuffer<42> json;
-
-  EXPECT_EQ(0, json.size());
-}
-
 TEST(StaticJsonBuffer_Object_Tests,
      WhenCreateObjectIsCalled_ThenSizeIsIncreasedSizeOfJsonObject) {
   StaticJsonBuffer<SIZEOF_TWO_OBJECTS> json;