Function TestRleRunReverseIterator16

runcontainer_test.go:311–381

(t *testing.T)

}

func TestRleRunReverseIterator16(t *testing.T) {
	t.Run("RunReverseIterator16 unit tests for next, hasNext, and peekNext should pass", func(t *testing.T) {
		{
			rc := newRunContainer16()
			it := rc.newRunReverseIterator16()
			assert.False(t, it.hasNext())
			assert.Panics(t, func() { it.next() })
		}
		{
			rc := newRunContainer16TakeOwnership([]interval16{newInterval16Range(0, 0)})
			it := rc.newRunReverseIterator16()
			assert.True(t, it.hasNext())
			assert.EqualValues(t, uint16(0), it.next())
			assert.Panics(t, func() { it.next() })
			assert.False(t, it.hasNext())
			assert.Panics(t, func() { it.next() })
		}
		{
			rc := newRunContainer16TakeOwnership([]interval16{newInterval16Range(4, 4)})
			it := rc.newRunReverseIterator16()
			assert.True(t, it.hasNext())
			assert.EqualValues(t, uint16(4), it.next())
			assert.False(t, it.hasNext())
		}
		{
			rc := newRunContainer16TakeOwnership([]interval16{newInterval16Range(MaxUint16, MaxUint16)})
			it := rc.newRunReverseIterator16()
			assert.True(t, it.hasNext())
			assert.EqualValues(t, uint16(MaxUint16), it.next())
			assert.False(t, it.hasNext())
		}
		{
			rc := newRunContainer16TakeOwnership([]interval16{newInterval16Range(4, 9)})
			it := rc.newRunReverseIterator16()
			assert.True(t, it.hasNext())
			for i := 9; i >= 4; i-- {
				assert.Equal(t, uint16(i), it.next())
				if i > 4 {
					assert.True(t, it.hasNext())
				} else if i == 4 {
					assert.False(t, it.hasNext())
				}
			}
			assert.False(t, it.hasNext())
			assert.Panics(t, func() { it.next() })
		}
		{
			rc := newRunContainer16TakeOwnership([]interval16{
				newInterval16Range(0, 0),
				newInterval16Range(2, 2),
				newInterval16Range(4, 4),
				newInterval16Range(6, 7),
				newInterval16Range(10, 12),
				newInterval16Range(MaxUint16, MaxUint16),
			})

			it := rc.newRunReverseIterator16()
			assert.Equal(t, uint16(MaxUint16), it.next())