FreeCAD

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// SPDX-License-Identifier: LGPL-2.1-or-later
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#include <gtest/gtest.h>
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#include "Mod/Sketcher/App/planegcs/GCS.h"
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class SystemTest: public GCS::System
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{
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public:
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    size_t getNumberOfConstraints(int tagID = -1)
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    {
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        return _getNumberOfConstraints(tagID);
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    }
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};
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class GCSTest: public ::testing::Test
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{
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protected:
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    void SetUp() override
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    {
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        _system = std::make_unique<SystemTest>();
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    }
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    void TearDown() override
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    {
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        _system.reset();
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    }
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    SystemTest* System()
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    {
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        return _system.get();
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    }
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private:
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    std::unique_ptr<SystemTest> _system;
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};
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TEST_F(GCSTest, clearConstraints)  // NOLINT
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{
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    // Arrange
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    const size_t numConstraints {100};
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    for (size_t i = 0; i < numConstraints; ++i) {
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        System()->addConstraint(new GCS::Constraint());
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    }
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    ASSERT_EQ(numConstraints, System()->getNumberOfConstraints());
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    // Act
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    System()->clear();
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    // Assert
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    EXPECT_EQ(0, System()->getNumberOfConstraints());
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}
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