chromium/third_party/dawn/src/dawn/tests/unittests/validation/VertexStateValidationTests.cpp

// Copyright 2017 The Dawn & Tint Authors
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#include <limits>
#include <string>

#include "dawn/tests/unittests/validation/ValidationTest.h"
#include "dawn/utils/ComboRenderPipelineDescriptor.h"
#include "dawn/utils/WGPUHelpers.h"

namespace dawn {
namespace {

class VertexStateTest : public ValidationTest { … };

// Check an empty vertex input is valid
TEST_F(VertexStateTest, EmptyIsOk) { … }

// Check null buffer is valid
TEST_F(VertexStateTest, NullBufferIsOk) { … }

// Check validation that pipeline vertex buffers are backed by attributes in the vertex input
TEST_F(VertexStateTest, PipelineCompatibility) { … }

// Test that a arrayStride of 0 is valid
TEST_F(VertexStateTest, StrideZero) { … }

// Check validation that vertex attribute offset should be within vertex buffer arrayStride,
// if vertex buffer arrayStride is not zero.
TEST_F(VertexStateTest, SetOffsetOutOfBounds) { … }

// Check out of bounds condition on total number of vertex buffers
TEST_F(VertexStateTest, SetVertexBuffersNumLimit) { … }

// Check out of bounds condition on total number of vertex attributes
TEST_F(VertexStateTest, SetVertexAttributesNumLimit) { … }

// Check out of bounds condition on input arrayStride
TEST_F(VertexStateTest, SetInputStrideOutOfBounds) { … }

// Check multiple of 4 bytes constraint on input arrayStride
TEST_F(VertexStateTest, SetInputStrideNotAligned) { … }

// Test that we cannot set an already set attribute
TEST_F(VertexStateTest, AlreadySetAttribute) { … }

// Test that a arrayStride of 0 is valid
TEST_F(VertexStateTest, SetSameShaderLocation) { … }

// Check out of bounds condition on attribute shader location
TEST_F(VertexStateTest, SetAttributeLocationOutOfBounds) { … }

// Check attribute offset out of bounds
TEST_F(VertexStateTest, SetAttributeOffsetOutOfBounds) { … }

// Check the min(4, formatSize) alignment constraint for the offset.
TEST_F(VertexStateTest, SetOffsetNotAligned) { … }

// Check attribute offset overflow
TEST_F(VertexStateTest, SetAttributeOffsetOverflow) { … }

// Check for some potential underflow in the vertex input validation
TEST_F(VertexStateTest, VertexFormatLargerThanNonZeroStride) { … }

// Check that the vertex format base type must match the shader's variable base type.
TEST_F(VertexStateTest, BaseTypeMatching) { … }

// Check that we only check base type compatibility for vertex inputs the shader uses.
TEST_F(VertexStateTest, BaseTypeMatchingForInexistentInput) { … }

// Test that non-zero attributeCount with VertexBufferNotUsed stepMode is invalid
TEST_F(VertexStateTest, UnusedBufferZeroAttribute) { … }

}  // anonymous namespace
}  // namespace dawn