added StringList set

kyaml/sets/sets_test.go

@@ -0,0 +1,54 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package sets
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestStringList_Len(t *testing.T) {
+	var sl0 StringList = [][]string{}
+	assert.Equal(t, 0, sl0.Len())
+
+	var sl1 StringList = [][]string{
+		{""},
+	}
+	assert.Equal(t, 1, sl1.Len())
+
+	var sl2 StringList = [][]string{
+		{"a", "b"},
+		{"b", "c"},
+	}
+	assert.Equal(t, 2, sl2.Len())
+}
+
+func TestStringList_Insert(t *testing.T) {
+	var sl StringList
+	assert.Equal(t, 0, sl.Len())
+
+	sl = sl.Insert([]string{"a", "b", "c"})
+	assert.Equal(t, 1, sl.Len())
+
+	sl = sl.Insert([]string{"c", "b", "a"})
+	assert.Equal(t, 2, sl.Len())
+
+	sl = sl.Insert([]string{"a", "b", "c"})
+	assert.Equal(t, 2, sl.Len())
+}
+
+func TestStringList_Has(t *testing.T) {
+	var sl StringList
+
+	assert.False(t, sl.Has([]string{}))
+	assert.False(t, sl.Has([]string{"a", "b", "c"}))
+
+	sl = sl.Insert([]string{"a", "b", "c"})
+	assert.True(t, sl.Has([]string{"a", "b", "c"}))
+	assert.False(t, sl.Has([]string{"b", "c", "a"}))
+
+	sl = sl.Insert([]string{})
+	assert.True(t, sl.Has([]string{}))
+}