Livt.Collections

tests/list/ListTest.lvt

namespace Livt.Collections.Tests.List

using Livt.Collections.List

/**
 * Exercises List with a shared fixture instance. Each scenario establishes the inputs and
 * state it needs.
 */
@Test
component ListTest
{
	// Shared fixture instances, signals, and observation state.
	list8: List8

	// Shared fixture instances, signals, and observation state.
	list16: List16

	// Shared fixture instances, signals, and observation state.
	list32: List32

	// Shared fixture instances, signals, and observation state.
	list64: List64

	/**
	 * Creates the shared fixture instances (List8, List16, List32, List64). Tests initialize
	 * the state required by their scenario.
	 */
	new()
	{
		this.list8 = new List8()
		this.list16 = new List16()
		this.list32 = new List32()
		this.list64 = new List64()
	}

	/**
	 * Checks the list8 indexed operations case.
	 */
	@Test
	fn TestList8IndexedOperations()
	{
		this.list8.Clear()
		this.list8.Add(0b0000_0001)
		this.list8.Add(0b0000_0010)
		this.list8.Add(0b0000_0011)
		assert this.list8.GetSize() == 3
		assert this.list8.Get(0) == 0b0000_0001
		assert this.list8.Get(1) == 0b0000_0010
		this.list8.Set(1, 0b0000_0100)
		assert this.list8.Get(1) == 0b0000_0100
		assert this.list8.RemoveLast() == 0b0000_0011
		assert this.list8.GetSize() == 2
	}

	/**
	 * Checks the list16 rejects add when full case.
	 */
	@Test
	fn TestList16RejectsAddWhenFull()
	{
		this.list16.Clear()

		for (var i = 0; i < 16; i++) {
			this.list16.Add(0b0000_0001)
		}

		this.list16.Add(0b0000_0010)
		assert this.list16.IsFull() == true
		assert this.list16.GetSize() == 16
		assert this.list16.RemoveLast() == 0b0000_0001
	}

	/**
	 * Checks the list32 bounds case.
	 */
	@Test
	fn TestList32Bounds()
	{
		this.list32.Clear()
		this.list32.Add(0b0000_0001)
		this.list32.Set(-1, 0b0000_0010)
		this.list32.Set(1, 0b0000_0010)
		assert this.list32.Get(-1) == 0b0000_0000
		assert this.list32.Get(1) == 0b0000_0000
		assert this.list32.Get(0) == 0b0000_0001
		assert this.list32.GetSize() == 1
	}

	/**
	 * Checks the list64 capacity and order case.
	 */
	@Test
	fn TestList64CapacityAndOrder()
	{
		this.list64.Clear()
		this.list64.Add(0b0000_0010)

		for (var i = 1; i < 64; i++) {
			this.list64.Add(0b0000_0001)
		}

		assert this.list64.IsFull() == true
		assert this.list64.GetSize() == 64
		assert this.list64.Get(0) == 0b0000_0010
		assert this.list64.Get(63) == 0b0000_0001
	}

	/**
	 * Checks the empty remove and clear case.
	 */
	@Test
	fn TestEmptyRemoveAndClear()
	{
		this.list8.Clear()
		assert this.list8.IsEmpty() == true
		assert this.list8.RemoveLast() == 0b0000_0000
		this.list8.Add(0b0000_0001)
		this.list8.Clear()
		assert this.list8.GetSize() == 0
		assert this.list8.Get(0) == 0b0000_0000
	}

	/**
	 * Checks that Add preserves values written by set.
	 */
	@Test
	fn TestAddPreservesValuesWrittenBySet()
	{
		this.list8.Clear()
		this.list8.Add(0b0000_0001)
		this.list8.Add(0b0000_0010)
		this.list8.Set(0, 0b0000_0011)
		this.list8.Add(0b0000_0100)
		assert this.list8.GetSize() == 3
		assert this.list8.Get(0) == 0b0000_0011
		assert this.list8.Get(1) == 0b0000_0010
		assert this.list8.Get(2) == 0b0000_0100
	}
}