60 lines
1.5 KiB
C++
60 lines
1.5 KiB
C++
#include <gtest/gtest.h>
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#include <pdfengine/graphics_state.hpp>
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using namespace pdfengine;
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TEST(MatrixTest, DefaultIdentity) {
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Matrix m;
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EXPECT_FLOAT_EQ(m.a, 1.0f);
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EXPECT_FLOAT_EQ(m.b, 0.0f);
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EXPECT_FLOAT_EQ(m.c, 0.0f);
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EXPECT_FLOAT_EQ(m.d, 1.0f);
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EXPECT_FLOAT_EQ(m.e, 0.0f);
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EXPECT_FLOAT_EQ(m.f, 0.0f);
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}
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TEST(MatrixTest, Multiply) {
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Matrix m1(2.0f, 0.0f, 0.0f, 2.0f, 10.0f, 20.0f);
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Matrix m2(0.5f, 0.0f, 0.0f, 0.5f, -5.0f, -10.0f);
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Matrix result = m1.multiply(m2);
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EXPECT_FLOAT_EQ(result.a, 1.0f);
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EXPECT_FLOAT_EQ(result.b, 0.0f);
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EXPECT_FLOAT_EQ(result.c, 0.0f);
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EXPECT_FLOAT_EQ(result.d, 1.0f);
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EXPECT_FLOAT_EQ(result.e, 0.0f);
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EXPECT_FLOAT_EQ(result.f, 0.0f);
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}
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TEST(MatrixTest, TransformPoint) {
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Matrix m(2.0f, 0.0f, 0.0f, 3.0f, 10.0f, 20.0f);
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float x = 5.0f;
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float y = 5.0f;
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m.transform(x, y);
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EXPECT_FLOAT_EQ(x, 20.0f);
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EXPECT_FLOAT_EQ(y, 35.0f);
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}
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TEST(GraphicsStateStackTest, PushPop) {
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GraphicsStateStack stack;
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stack.current().lineWidth = 5.0f;
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stack.push();
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EXPECT_FLOAT_EQ(stack.current().lineWidth, 5.0f);
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stack.current().lineWidth = 10.0f;
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EXPECT_FLOAT_EQ(stack.current().lineWidth, 10.0f);
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stack.pop();
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EXPECT_FLOAT_EQ(stack.current().lineWidth, 5.0f);
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}
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TEST(GraphicsStateStackTest, PopEmptyProtection) {
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GraphicsStateStack stack;
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stack.pop();
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stack.current().lineWidth = 2.0f;
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EXPECT_FLOAT_EQ(stack.current().lineWidth, 2.0f);
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}
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