util/util_test.go

// Licensed to the Apache Software Foundation (ASF) under one
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// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

package util

import (
	"fmt"
	"strings"
	"testing"

	"github.com/stretchr/testify/assert"
)

func TestIsNil(t *testing.T) {
	var a interface{}
	var b interface{} = (*int)(nil)

	assert.True(t, a == nil)
	assert.False(t, b == nil)
}

func TestRemoveDuplicateElement(t *testing.T) {
	s := []string{"hello", "world", "hello", "golang", "hello", "ruby", "php", "java"}
	resList := RemoveDuplicateElement(s)
	res := fmt.Sprintf("%s", resList)
	assert.Equal(t, 1, strings.Count(res, "hello"))
}