33 lines
1.3 KiB
C++
33 lines
1.3 KiB
C++
#include <gtest/gtest.h>
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#include <type_traits>
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#include "renderive/base/node/Node.hpp"
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struct Multiway_Node_Test_Owner {};
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struct Multiway_Node_Test_Tag {};
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using Multiway_Node_Test_Type = Multiway_Node<Multiway_Node_Test_Owner, Multiway_Node_Test_Tag>;
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static_assert(Multiway_Node_Type<Multiway_Node_Test_Type, Multiway_Node_Test_Owner, Multiway_Node_Test_Tag>);
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static_assert(!std::same_as<Multiway_Node<Multiway_Node_Test_Owner>, Multiway_Node_Test_Type>);
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TEST(multiway_node_test, reparents_child_and_preserves_order) {
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Multiway_Node_Test_Owner first_owner;
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Multiway_Node_Test_Owner second_owner;
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Multiway_Node_Test_Owner third_owner;
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Multiway_Node_Test_Type root;
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Multiway_Node_Test_Type first(&first_owner);
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Multiway_Node_Test_Type second(&second_owner);
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Multiway_Node_Test_Type third(&third_owner);
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root.append_child(first);
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root.append_child(second);
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first.append_child(third);
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EXPECT_EQ(root.children.size(), 2);
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EXPECT_EQ(first.children.front(), &third);
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EXPECT_EQ(third.parent, &first);
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second.append_child(third);
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EXPECT_TRUE(first.children.empty());
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EXPECT_EQ(third.parent, &second);
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}
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TEST(multiway_node_test, rejects_cycles) {
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Multiway_Node_Test_Type root;
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Multiway_Node_Test_Type child;
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root.append_child(child);
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EXPECT_THROW(child.append_child(root), std::invalid_argument);
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}
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