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Tests: Test FixedArray completely
Except for tangential accessors such as data(), there is no more feature of FixedArray that is untested after this large expansion of its test cases. These tests, with the help of the new NoAllocationGuard, also test the allocation contract that was fixated in the last commit. Hopefully this builds confidence in future Kernel uses of FixedArray as well as its establishment in the real-time parts of the audio subsystem. I'm excited :^)
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2 changed files with 58 additions and 3 deletions
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@ -4,14 +4,16 @@
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibTest/TestCase.h>
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#include <LibTest/TestSuite.h>
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#include <AK/FixedArray.h>
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#include <AK/String.h>
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#include <AK/NoAllocationGuard.h>
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TEST_CASE(construct)
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{
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EXPECT(FixedArray<int>().size() == 0);
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EXPECT_EQ(FixedArray<int>().size(), 0u);
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EXPECT_EQ(FixedArray<int>::must_create_but_fixme_should_propagate_errors(1985).size(), 1985u);
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}
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TEST_CASE(ints)
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@ -24,3 +26,56 @@ TEST_CASE(ints)
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EXPECT_EQ(ints[1], 1);
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EXPECT_EQ(ints[2], 2);
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}
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TEST_CASE(swap)
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{
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FixedArray<int> first = FixedArray<int>::must_create_but_fixme_should_propagate_errors(4);
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FixedArray<int> second = FixedArray<int>::must_create_but_fixme_should_propagate_errors(5);
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first[3] = 1;
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second[3] = 2;
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first.swap(second);
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EXPECT_EQ(first.size(), 5u);
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EXPECT_EQ(second.size(), 4u);
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EXPECT_EQ(first[3], 2);
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EXPECT_EQ(second[3], 1);
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}
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TEST_CASE(move)
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{
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FixedArray<int> moved_from_array = FixedArray<int>::must_create_but_fixme_should_propagate_errors(6);
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FixedArray<int> moved_to_array(move(moved_from_array));
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EXPECT_EQ(moved_to_array.size(), 6u);
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EXPECT_EQ(moved_from_array.size(), 0u);
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}
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TEST_CASE(no_allocation)
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{
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FixedArray<int> array = FixedArray<int>::must_create_but_fixme_should_propagate_errors(5);
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EXPECT_NO_CRASH("Assigments", [&] {
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NoAllocationGuard guard;
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array[0] = 0;
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array[1] = 1;
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array[2] = 2;
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array[4] = array[1];
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array[3] = array[0] + array[2];
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return Test::Crash::Failure::DidNotCrash;
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});
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EXPECT_NO_CRASH("Move", [&] {
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FixedArray<int> moved_from_array = FixedArray<int>::must_create_but_fixme_should_propagate_errors(6);
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NoAllocationGuard guard;
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FixedArray<int> moved_to_array(move(moved_from_array));
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// We need to ensure that this destructor runs before the FixedArray destructor.
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guard.~NoAllocationGuard();
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return Test::Crash::Failure::DidNotCrash;
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});
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EXPECT_NO_CRASH("Swap", [&] {
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FixedArray<int> target_for_swapping;
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{
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NoAllocationGuard guard;
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array.swap(target_for_swapping);
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}
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return Test::Crash::Failure::DidNotCrash;
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});
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}
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