Add IScratchStage tests

Author: adazem009

test/target_interfaces/CMakeLists.txt

@@ -13,3 +13,19 @@ target_link_libraries(
 )
 
 gtest_discover_tests(iscratchsprite_test)
+
+# iscratchstage_test
+add_executable(
+  iscratchstage_test
+  iscratchstage_test.cpp
+  teststageinterface.cpp
+  teststageinterface.h
+)
+
+target_link_libraries(
+  iscratchstage_test
+  GTest::gtest_main
+  scratchcpp
+)
+
+gtest_discover_tests(iscratchstage_test)

test/target_interfaces/iscratchstage_test.cpp

@@ -0,0 +1,34 @@
+#include "scratch/stage.h"
+#include "teststageinterface.h"
+#include "../common.h"
+
+#define INIT_STAGE() stage.setInterface(&stageInterface);
+
+using namespace libscratchcpp;
+
+Stage stage;
+TestStageInterface stageInterface;
+
+TEST(IScratchStageTest, Tempo)
+{
+    INIT_STAGE();
+    stage.setTempo(120);
+    ASSERT_EQ(stageInterface.tempo, 120);
+    stage.setTempo(55);
+    ASSERT_EQ(stage.tempo(), 55);
+}
+
+TEST(IScratchStageTest, VideoState)
+{
+    INIT_STAGE();
+    stage.setVideoState(Stage::VideoState::On);
+    ASSERT_EQ(stageInterface.videoState, Stage::VideoState::On);
+    stage.setVideoState(Stage::VideoState::OnFlipped);
+    ASSERT_EQ(stageInterface.videoState, Stage::VideoState::OnFlipped);
+}
+
+TEST(IScratchStageTest, CostumeData)
+{
+    INIT_STAGE();
+    // TODO: Add tests for costume data
+}

test/target_interfaces/teststageinterface.cpp

@@ -0,0 +1,25 @@
+#include "teststageinterface.h"
+
+TestStageInterface::TestStageInterface()
+{
+}
+
+void TestStageInterface::setTempo(int tempo)
+{
+    this->tempo = tempo;
+}
+
+void TestStageInterface::setVideoState(Stage::VideoState videoState)
+{
+    this->videoState = videoState;
+}
+
+void TestStageInterface::setVideoTransparency(int videoTransparency)
+{
+    this->videoTrasparency = videoTransparency;
+}
+
+void TestStageInterface::setCostume(const char *data)
+{
+    costumeData = data;
+}

test/target_interfaces/teststageinterface.h

@@ -0,0 +1,23 @@
+#pragma once
+
+#include <iscratchstage.h>
+
+using namespace libscratchcpp;
+
+class TestStageInterface : public IScratchStage
+{
+    public:
+        TestStageInterface();
+
+        void setTempo(int tempo) override;
+        void setVideoState(Stage::VideoState videoState) override;
+        void setVideoTransparency(int videoTransparency) override;
+
+        void setCostume(const char *data) override;
+
+        int tempo = 60;
+        Stage::VideoState videoState = Stage::VideoState::Off;
+        int videoTrasparency = 50;
+
+        const char *costumeData = nullptr;
+};