76 lines
2.1 KiB
C++
76 lines
2.1 KiB
C++
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// Jolt Physics Library (https://github.com/jrouwe/JoltPhysics)
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// SPDX-FileCopyrightText: 2021 Jorrit Rouwe
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// SPDX-License-Identifier: MIT
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#include "UnitTestFramework.h"
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#include <Jolt/Physics/Collision/Shape/SubShapeID.h>
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TEST_SUITE("SubShapeIDTest")
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{
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struct SSPair
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{
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uint32 mValue;
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uint mNumBits;
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};
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using SSPairs = Array<SSPair>;
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// Helper function that pushes sub shape ID's on the creator and checks that they come out again
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static void TestPushPop(const SSPairs &inPairs)
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{
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// Push all id's on the creator
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SubShapeIDCreator creator;
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int total_bits = 0;
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for (const SSPair &p : inPairs)
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{
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creator = creator.PushID(p.mValue, p.mNumBits);
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total_bits += p.mNumBits;
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}
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CHECK(creator.GetNumBitsWritten() == total_bits);
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// Now pop all parts
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SubShapeID id = creator.GetID();
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for (const SSPair &p : inPairs)
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{
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// There should be data (note there is a possibility of a false positive if the bit pattern is all 1's)
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CHECK(!id.IsEmpty());
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// Pop the part
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SubShapeID remainder;
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uint32 value = id.PopID(p.mNumBits, remainder);
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// Check value
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CHECK(value == p.mValue);
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// Continue with the remainder
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id = remainder;
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}
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CHECK(id.IsEmpty());
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}
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TEST_CASE("SubShapeIDTest")
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{
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// Test storing some values
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TestPushPop({ { 0b110101010, 9 }, { 0b0101010101, 10 }, { 0b10110101010, 11 } });
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// Test storing some values with a different pattern
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TestPushPop({ { 0b001010101, 9 }, { 0b1010101010, 10 }, { 0b01001010101, 11 } });
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// Test storing up to 32 bits
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TestPushPop({ { 0b10, 2 }, { 0b1110101010, 10 }, { 0b0101010101, 10 }, { 0b1010101010, 10 } });
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// Test storing up to 32 bits with a different pattern
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TestPushPop({ { 0b0001010101, 10 }, { 0b1010101010, 10 }, { 0b0101010101, 10 }, { 0b01, 2 } });
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// Test storing 0 bits
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TestPushPop({ { 0b10, 2 }, { 0b1110101010, 10 }, { 0, 0 }, { 0b0101010101, 10 }, { 0, 0 }, { 0b1010101010, 10 } });
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// Test 32 bits at once
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TestPushPop({ { 0b10101010101010101010101010101010, 32 } });
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// Test 32 bits at once with a different pattern
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TestPushPop({ { 0b01010101010101010101010101010101, 32 } });
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}
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}
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