Video backend

tests/RuntimeHostVideoIOStateTests.cpp

@@ -0,0 +1,67 @@
+#include "RuntimeHost.h"
+
+#include <iostream>
+
+namespace
+{
+int gFailures = 0;
+
+void Expect(bool condition, const char* message)
+{
+	if (condition)
+		return;
+
+	std::cerr << "FAIL: " << message << "\n";
+	++gFailures;
+}
+}
+
+int main()
+{
+	RuntimeHost runtimeHost;
+	std::string error;
+	Expect(runtimeHost.Initialize(error), "runtime host initializes");
+	Expect(error.empty(), "runtime host initialization does not report an error");
+
+	VideoIOState state;
+	state.backendId = VideoIOBackendId::DeckLink;
+	state.deviceName = "Test Device";
+	state.hasInputDevice = true;
+	state.hasInputSource = true;
+	state.inputDisplayModeName = "fake input";
+	state.outputDisplayModeName = "fake output";
+	state.capabilities.supportsInternalKeying = true;
+	state.capabilities.supportsExternalKeying = true;
+	state.capabilities.keyerInterfaceAvailable = true;
+	state.externalKeyingRequested = true;
+	state.externalKeyingActive = true;
+	state.statusMessage = "ready";
+	state.formatStatusMessage = "using fake formats";
+	runtimeHost.SetVideoIOStatus(state);
+
+	JsonValue root;
+	Expect(ParseJson(runtimeHost.BuildStateJson(), root, error), "runtime state json parses");
+	Expect(root.find("videoIO") != nullptr, "runtime state exposes videoIO");
+	Expect(root.find("decklink") == nullptr, "runtime state no longer exposes a decklink top-level block");
+
+	const JsonValue* app = root.find("app");
+	Expect(app != nullptr, "runtime state exposes app settings");
+	Expect(app != nullptr && app->find("videoBackend") != nullptr, "app settings expose videoBackend");
+	Expect(app != nullptr && app->find("videoBackend")->asString() == "decklink", "videoBackend serializes as decklink");
+
+	const JsonValue* videoIO = root.find("videoIO");
+	Expect(videoIO != nullptr && videoIO->find("backend") != nullptr, "videoIO exposes backend");
+	Expect(videoIO != nullptr && videoIO->find("backend")->asString() == "decklink", "videoIO backend serializes as decklink");
+	Expect(videoIO != nullptr && videoIO->find("deviceName") != nullptr, "videoIO exposes device name");
+	Expect(videoIO != nullptr && videoIO->find("deviceName")->asString() == "Test Device", "videoIO device name matches");
+	Expect(videoIO != nullptr && videoIO->find("capabilities") != nullptr, "videoIO exposes capabilities");
+
+	if (gFailures != 0)
+	{
+		std::cerr << gFailures << " RuntimeHost video I/O state test failure(s).\n";
+		return 1;
+	}
+
+	std::cout << "RuntimeHost video I/O state tests passed.\n";
+	return 0;
+}