Исходники и презентации

homework/slices_and_arrays/homework_test.go

@@ -0,0 +1,86 @@
+package main
+
+import (
+	"reflect"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+// go test -v homework_test.go
+
+type CircularQueue struct {
+	values []int
+	// need to implement
+}
+
+func NewCircularQueue(size int) CircularQueue {
+	return CircularQueue{} // need to implement
+}
+
+func (q *CircularQueue) Push(value int) bool {
+	return false // need to implement
+}
+
+func (q *CircularQueue) Pop() bool {
+	return false // need to implement
+}
+
+func (q *CircularQueue) Front() int {
+	return -1 // need to implement
+}
+
+func (q *CircularQueue) Back() int {
+	return -1 // need to implement
+}
+
+func (q *CircularQueue) Empty() bool {
+	return false // need to implement
+}
+
+func (q *CircularQueue) Full() bool {
+	return false // need to implement
+}
+
+func TestCircularQueue(t *testing.T) {
+	const queueSize = 3
+	queue := NewCircularQueue(queueSize)
+
+	assert.True(t, queue.Empty())
+	assert.False(t, queue.Full())
+
+	assert.Equal(t, -1, queue.Front())
+	assert.Equal(t, -1, queue.Back())
+	assert.False(t, queue.Pop())
+
+	assert.True(t, queue.Push(1))
+	assert.True(t, queue.Push(2))
+	assert.True(t, queue.Push(3))
+	assert.False(t, queue.Push(4))
+
+	assert.True(t, reflect.DeepEqual([]int{1, 2, 3}, queue.values))
+
+	assert.False(t, queue.Empty())
+	assert.True(t, queue.Full())
+
+	assert.Equal(t, 1, queue.Front())
+	assert.Equal(t, 3, queue.Back())
+
+	assert.True(t, queue.Pop())
+	assert.False(t, queue.Empty())
+	assert.False(t, queue.Full())
+	assert.True(t, queue.Push(4))
+
+	assert.True(t, reflect.DeepEqual([]int{4, 2, 3}, queue.values))
+
+	assert.Equal(t, 2, queue.Front())
+	assert.Equal(t, 4, queue.Back())
+
+	assert.True(t, queue.Pop())
+	assert.True(t, queue.Pop())
+	assert.True(t, queue.Pop())
+	assert.False(t, queue.Pop())
+
+	assert.True(t, queue.Empty())
+	assert.False(t, queue.Full())
+}