1 files changed, 140 insertions, 0 deletions
diff --git a/gfx/angle/src/libANGLE/validationES_unittest.cpp b/gfx/angle/src/libANGLE/validationES_unittest.cpp
new file mode 100755
index 000000000..925005a6e
--- /dev/null
+++ b/gfx/angle/src/libANGLE/validationES_unittest.cpp
@@ -0,0 +1,140 @@
+//
+// Copyright 2015 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// validationES unit tests:
+//   Unit tests for general ES validation functions.
+//
+
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+
+#include "libANGLE/ContextState.h"
+#include "libANGLE/renderer/FramebufferImpl_mock.h"
+#include "libANGLE/renderer/ProgramImpl_mock.h"
+#include "libANGLE/renderer/TextureImpl_mock.h"
+#include "libANGLE/validationES.h"
+#include "tests/angle_unittests_utils.h"
+
+using namespace gl;
+using namespace rx;
+using testing::_;
+using testing::NiceMock;
+using testing::Return;
+
+namespace
+{
+
+class MockValidationContext : public ValidationContext
+{
+  public:
+    MockValidationContext(const Version &version,
+                          State *state,
+                          const Caps &caps,
+                          const TextureCapsMap &textureCaps,
+                          const Extensions &extensions,
+                          const ResourceManager *resourceManager,
+                          const Limitations &limitations,
+                          const ResourceMap<Framebuffer> &framebufferMap,
+                          bool skipValidation);
+
+    MOCK_METHOD1(handleError, void(const Error &));
+};
+
+MockValidationContext::MockValidationContext(const Version &version,
+                                             State *state,
+                                             const Caps &caps,
+                                             const TextureCapsMap &textureCaps,
+                                             const Extensions &extensions,
+                                             const ResourceManager *resourceManager,
+                                             const Limitations &limitations,
+                                             const ResourceMap<Framebuffer> &framebufferMap,
+                                             bool skipValidation)
+    : ValidationContext(version,
+                        state,
+                        caps,
+                        textureCaps,
+                        extensions,
+                        resourceManager,
+                        limitations,
+                        framebufferMap,
+                        skipValidation)
+{
+}
+
+// Test that ANGLE generates an INVALID_OPERATION when validating index data that uses a value
+// larger than MAX_ELEMENT_INDEX. Not specified in the GLES 3 spec, it's undefined behaviour,
+// but we want a test to ensure we maintain this behaviour.
+TEST(ValidationESTest, DrawElementsWithMaxIndexGivesError)
+{
+    auto framebufferImpl = MakeFramebufferMock();
+    auto programImpl     = MakeProgramMock();
+
+    // TODO(jmadill): Generalize some of this code so we can re-use it for other tests.
+    NiceMock<MockGLFactory> mockFactory;
+    EXPECT_CALL(mockFactory, createFramebuffer(_)).WillOnce(Return(framebufferImpl));
+    EXPECT_CALL(mockFactory, createProgram(_)).WillOnce(Return(programImpl));
+    EXPECT_CALL(mockFactory, createVertexArray(_)).WillOnce(Return(nullptr));
+
+    State state;
+    Caps caps;
+    TextureCapsMap textureCaps;
+    Extensions extensions;
+    Limitations limitations;
+    ResourceMap<Framebuffer> framebufferMap;
+
+    // Set some basic caps.
+    caps.maxElementIndex     = 100;
+    caps.maxDrawBuffers      = 1;
+    caps.maxColorAttachments = 1;
+    state.initialize(caps, extensions, Version(3, 0), false, true);
+
+    NiceMock<MockTextureImpl> *textureImpl = new NiceMock<MockTextureImpl>();
+    EXPECT_CALL(mockFactory, createTexture(_)).WillOnce(Return(textureImpl));
+    EXPECT_CALL(*textureImpl, setStorage(_, _, _, _)).WillOnce(Return(Error(GL_NO_ERROR)));
+    EXPECT_CALL(*textureImpl, destructor()).Times(1).RetiresOnSaturation();
+
+    Texture *texture = new Texture(&mockFactory, 0, GL_TEXTURE_2D);
+    texture->addRef();
+    texture->setStorage(GL_TEXTURE_2D, 1, GL_RGBA8, Extents(1, 1, 0));
+
+    VertexArray *vertexArray = new VertexArray(&mockFactory, 0, 1);
+    Framebuffer *framebuffer = new Framebuffer(caps, &mockFactory, 1);
+    framebuffer->setAttachment(GL_FRAMEBUFFER_DEFAULT, GL_BACK, ImageIndex::Make2D(0), texture);
+
+    Program *program = new Program(&mockFactory, nullptr, 1);
+
+    state.setVertexArrayBinding(vertexArray);
+    state.setDrawFramebufferBinding(framebuffer);
+    state.setProgram(program);
+
+    NiceMock<MockValidationContext> testContext(Version(3, 0), &state, caps, textureCaps,
+                                                extensions, nullptr, limitations, framebufferMap,
+                                                false);
+
+    // Set the expectation for the validation error here.
+    Error expectedError(GL_INVALID_OPERATION, g_ExceedsMaxElementErrorMessage);
+    EXPECT_CALL(testContext, handleError(expectedError)).Times(1);
+
+    // Call once with maximum index, and once with an excessive index.
+    GLuint indexData[] = {0, 1, static_cast<GLuint>(caps.maxElementIndex - 1),
+                          3, 4, static_cast<GLuint>(caps.maxElementIndex)};
+    IndexRange indexRange;
+    EXPECT_TRUE(ValidateDrawElements(&testContext, GL_TRIANGLES, 3, GL_UNSIGNED_INT, indexData, 1,
+                                     &indexRange));
+    EXPECT_FALSE(ValidateDrawElements(&testContext, GL_TRIANGLES, 6, GL_UNSIGNED_INT, indexData, 2,
+                                      &indexRange));
+
+    texture->release();
+
+    state.setVertexArrayBinding(nullptr);
+    state.setDrawFramebufferBinding(nullptr);
+    state.setProgram(nullptr);
+
+    SafeDelete(vertexArray);
+    SafeDelete(framebuffer);
+    SafeDelete(program);
+}
+
+}  // anonymous namespace