Add unit-tests for RHI ViewState

Tests/Graphics/RHI/CMakeLists.txt

@@ -7,6 +7,7 @@ add_executable(${TARGET}
     ProgramBindingsTest.cpp
     ComputeContextTest.cpp
     ComputeStateTest.cpp
+    ViewStateTest.cpp
     CommandQueueTest.cpp
     FenceTest.cpp
     TransferCommandListTest.cpp

Tests/Graphics/RHI/ComputeStateTest.cpp

@@ -17,7 +17,7 @@ limitations under the License.
 *******************************************************************************
 
 FILE: Tests/Graphics/RHI/ComputeStateTest.cpp
-Unit-tests of the RHI ComputeContext
+Unit-tests of the RHI ComputeState
 
 ******************************************************************************/
 
@@ -40,15 +40,15 @@ static tf::Executor g_parallel_executor;
 
 TEST_CASE("RHI Compute State Functions", "[rhi][compute][state]")
 {
-    const Rhi::ComputeContext compute_context = Rhi::ComputeContext(GetTestDevice(), g_parallel_executor, {});
-    const Rhi::ComputeStateSettingsImpl& compute_state_settings{
+    const Rhi::ComputeContext compute_context(GetTestDevice(), g_parallel_executor, {});
+    const Rhi::ComputeStateSettingsImpl compute_state_settings{
         compute_context.CreateProgram({
             { { Rhi::ShaderType::Compute, { Data::ShaderProvider::Get(), { "Shader", "Main" } } } },
         }),
         Rhi::ThreadGroupSize(16, 16, 1)
     };
 
-    SECTION("Context Construction")
+    SECTION("Compute State Construction")
     {
         Rhi::ComputeState compute_state;
         REQUIRE_NOTHROW(compute_state = compute_context.CreateComputeState(compute_state_settings));

Tests/Graphics/RHI/ViewStateTest.cpp

@@ -0,0 +1,87 @@
+/******************************************************************************
+
+Copyright 2023 Evgeny Gorodetskiy
+
+Licensed under the Apache License, Version 2.0 (the "License"),
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+*******************************************************************************
+
+FILE: Tests/Graphics/RHI/ViewStateTest.cpp
+Unit-tests of the RHI ViewState
+
+******************************************************************************/
+
+#include <Methane/Graphics/RHI/ViewState.h>
+
+#include <memory>
+#include <catch2/catch_test_macros.hpp>
+
+using namespace Methane;
+using namespace Methane::Graphics;
+
+TEST_CASE("RHI View State Functions", "[rhi][view][state]")
+{
+    const Rhi::ViewSettings view_state_settings{
+        {
+            Viewport(1.2, 2.3, 3.4, 5.1, 6.2, 7.3),
+            Viewport(2.4, 3.5, 4.6, 6.3, 7.4, 8.5),
+            Viewport(3.6, 4.7, 5.8, 7.5, 8.6, 9.7)
+        },
+        {
+            ScissorRect(0U, 1U, 2U, 3U),
+            ScissorRect(1U, 2U, 3U, 4U),
+            ScissorRect(2U, 3U, 4U, 5U)
+        }
+    };
+
+    SECTION("Context Construction")
+    {
+        Rhi::ViewState view_state;
+        REQUIRE_NOTHROW(view_state = Rhi::ViewState(view_state_settings));
+        REQUIRE(view_state.IsInitialized());
+        CHECK(view_state.GetInterfacePtr());
+        CHECK(view_state.GetSettings().viewports == view_state_settings.viewports);
+        CHECK(view_state.GetSettings().scissor_rects == view_state_settings.scissor_rects);
+    }
+
+    Rhi::ViewState view_state(view_state_settings);
+    const Rhi::ViewSettings new_settings{
+        {
+            Viewport(9.1, 8.2, 7.3, 6.2, 5.1, 4.0)
+        },
+        {
+            ScissorRect(5U, 6U, 8U, 7U)
+        }
+    };
+
+    SECTION("Reset with Settings")
+    {
+        REQUIRE_NOTHROW(view_state.Reset(new_settings));
+        REQUIRE(view_state.GetSettings().viewports == new_settings.viewports);
+        REQUIRE(view_state.GetSettings().scissor_rects == new_settings.scissor_rects);
+    }
+
+    SECTION("Set Viewports")
+    {
+        REQUIRE_NOTHROW(view_state.SetViewports(new_settings.viewports));
+        REQUIRE(view_state.GetSettings().viewports == new_settings.viewports);
+        REQUIRE(view_state.GetSettings().scissor_rects == view_state_settings.scissor_rects);
+    }
+
+    SECTION("Set Scissor Rects")
+    {
+        REQUIRE_NOTHROW(view_state.SetScissorRects(new_settings.scissor_rects));
+        REQUIRE(view_state.GetSettings().viewports == view_state_settings.viewports);
+        REQUIRE(view_state.GetSettings().scissor_rects == new_settings.scissor_rects);
+    }
+}