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// Copyright 2018 The Hugo Authors. All rights reserved.
//
// Licensed 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 collections
import (
"fmt"
"reflect"
"testing"
"github.com/gohugoio/hugo/deps"
"github.com/stretchr/testify/require"
)
func TestSymDiff(t *testing.T) {
t.Parallel()
assert := require.New(t)
ns := New(&deps.Deps{})
s1 := []TstX{TstX{A: "a"}, TstX{A: "b"}}
s2 := []TstX{TstX{A: "a"}, TstX{A: "e"}}
xa, xd := &TstX{A: "a"}, &TstX{A: "d"}
sp1 := []*TstX{xa, &TstX{A: "b"}, xd, &TstX{A: "e"}}
sp2 := []*TstX{&TstX{A: "b"}, &TstX{A: "e"}}
for i, test := range []struct {
s1 interface{}
s2 interface{}
expected interface{}
}{
{[]string{"a", "x", "b", "c"}, []string{"a", "b", "y", "c"}, []string{"x", "y"}},
{[]string{"a", "b", "c"}, []string{"a", "b", "c"}, []string{}},
{[]interface{}{"a", "b", nil}, []interface{}{"a"}, []interface{}{"b", nil}},
{[]int{1, 2, 3}, []int{3, 4}, []int{1, 2, 4}},
{[]int{1, 2, 3}, []int64{3, 4}, []int{1, 2, 4}},
{s1, s2, []TstX{TstX{A: "b"}, TstX{A: "e"}}},
{sp1, sp2, []*TstX{xa, xd}},
// Errors
{"error", "error", false},
{[]int{1, 2, 3}, []string{"3", "4"}, false},
} {
errMsg := fmt.Sprintf("[%d]", i)
result, err := ns.SymDiff(test.s2, test.s1)
if b, ok := test.expected.(bool); ok && !b {
require.Error(t, err, errMsg)
continue
}
require.NoError(t, err, errMsg)
if !reflect.DeepEqual(test.expected, result) {
t.Fatalf("%s got\n%T: %v\nexpected\n%T: %v", errMsg, result, result, test.expected, test.expected)
}
}
_, err := ns.Complement()
assert.Error(err)
_, err = ns.Complement([]string{"a", "b"})
assert.Error(err)
}
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