Исходники и презентации

homework/maps/homewrok_test.go

@@ -0,0 +1,83 @@
+package main
+
+import (
+	"reflect"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+// go test -v homework_test.go
+
+type OrderedMap struct {
+	// need to implement
+}
+
+func NewOrderedMap() OrderedMap {
+	return OrderedMap{} // need to implement
+}
+
+func (m *OrderedMap) Insert(key, value int) {
+	// need to implement
+}
+
+func (m *OrderedMap) Erase(key int) {
+	// need to implement
+}
+
+func (m *OrderedMap) Contains(key int) bool {
+	return false // need to implement
+}
+
+func (m *OrderedMap) Size() int {
+	return 0 // need to implement
+}
+
+func (m *OrderedMap) ForEach(action func(int, int)) {
+	// need to implement
+}
+
+func TestCircularQueue(t *testing.T) {
+	data := NewOrderedMap()
+	assert.Zero(t, data.Size())
+
+	data.Insert(10, 10)
+	data.Insert(5, 5)
+	data.Insert(15, 15)
+	data.Insert(2, 2)
+	data.Insert(4, 4)
+	data.Insert(12, 12)
+	data.Insert(14, 14)
+
+	assert.Equal(t, 7, data.Size())
+	assert.True(t, data.Contains(4))
+	assert.True(t, data.Contains(12))
+	assert.False(t, data.Contains(3))
+	assert.False(t, data.Contains(13))
+
+	var keys []int
+	expectedKeys := []int{2, 4, 5, 10, 12, 14, 15}
+	data.ForEach(func(key, _ int) {
+		keys = append(keys, key)
+	})
+
+	assert.True(t, reflect.DeepEqual(expectedKeys, keys))
+
+	data.Erase(15)
+	data.Erase(14)
+	data.Erase(2)
+
+	assert.Equal(t, 4, data.Size())
+	assert.True(t, data.Contains(4))
+	assert.True(t, data.Contains(12))
+	assert.False(t, data.Contains(2))
+	assert.False(t, data.Contains(14))
+
+	keys = nil
+	expectedKeys = []int{4, 5, 10, 12}
+	data.ForEach(func(key, _ int) {
+		keys = append(keys, key)
+	})
+
+	assert.True(t, reflect.DeepEqual(expectedKeys, keys))
+}