doorgo/door/fifobuffer_test.go

package door

// Need net, flag for setupSockets
import (
	"testing"
)

func TestFIFOEmptyRune(t *testing.T) {
	buffer := NewFIFOBuffer[rune](3)

	defer func() {
		if r := recover(); r == nil {
			t.Error("Pop of empty FIFO Buffer did not panic.")
		}
	}()

	buffer.Push(rune(1))
	x := buffer.Pop()
	if x != rune(1) {
		t.Errorf("Buffer did not return expected value 1: %d", x)
	}

	_ = buffer.Pop()
}

func TestFIFOOverflowRune(t *testing.T) {
	buffer := NewFIFOBuffer[rune](3)

	defer func() {
		if r := recover(); r == nil {
			t.Error("Pop of empty FIFO Buffer did not panic.")
		}
	}()

	buffer.Push(rune(1))
	buffer.Push(rune(2))
	buffer.Push(rune(3))
	buffer.Push(rune(4))
	t.Errorf("buffer.Push should have paniced.")
}

func TestFIFOEmptyInt(t *testing.T) {
	buffer := NewFIFOBuffer[int](3)

	defer func() {
		if r := recover(); r == nil {
			t.Error("Pop of empty FIFO Buffer did not panic.")
		}
	}()

	buffer.Push(1)
	x := buffer.Pop()
	if x != 1 {
		t.Errorf("Buffer did not return expected value 1: %d", x)
	}

	_ = buffer.Pop()
}

func TestFIFOOverflowInt(t *testing.T) {
	buffer := NewFIFOBuffer[int](3)

	defer func() {
		if r := recover(); r == nil {
			t.Error("Pop of empty FIFO Buffer did not panic.")
		}
	}()

	buffer.Push(1)
	buffer.Push(2)
	buffer.Push(3)
	buffer.Push(4)
	t.Errorf("buffer.Push should have paniced.")
}

func TestFIFOInt(t *testing.T) {
	buffer := NewFIFOBuffer[int](3)
	buffer.Push(10)
	buffer.Push(20)
	x := buffer.Pop()
	if x != 20 {
		t.Errorf("Buffer did not return expected value 20: %d", x)
	}
	x = buffer.Pop()
	if x != 10 {
		t.Errorf("Buffer did not return expected value 10: %d", x)
	}
	if !buffer.Empty() {
		t.Errorf("Buffer is not empty.")
	}
	buffer.Push(30)
	x = buffer.Pop()
	if x != 30 {
		t.Errorf("Buffer did not return expected value 30: %d", x)
	}
}

func TestFIFOStr(t *testing.T) {
	buffer := NewFIFOBuffer[string](2)
	buffer.Push("Fish")
	buffer.Push("Cat")
	x := buffer.Pop()
	if x != "Cat" {
		t.Errorf("Expected Cat, got %s", x)
	}
	x = buffer.Pop()
	if x != "Fish" {
		t.Errorf("Expected Fish, got %s", x)
	}
}