More tests for the generic FIFO buffer.

door/fifobuffer_test.go

@@ -5,7 +5,7 @@ import (
 	"testing"
 )
 
-func TestFIFOEmpty(t *testing.T) {
+func TestFIFOEmptyRune(t *testing.T) {
 	buffer := NewFIFOBuffer[rune](3)
 
 	defer func() {
@@ -23,7 +23,7 @@ func TestFIFOEmpty(t *testing.T) {
 	_ = buffer.Pop()
 }
 
-func TestFIFOOverflow(t *testing.T) {
+func TestFIFOOverflowRune(t *testing.T) {
 	buffer := NewFIFOBuffer[rune](3)
 
 	defer func() {
@@ -36,5 +36,61 @@ func TestFIFOOverflow(t *testing.T) {
 	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)
+	}
 }