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minio/pkg/sync/errgroup/errgroup_test.go

53 lines
1.3 KiB

/*
* Minio Cloud Storage, (C) 2017 Minio, Inc.
*
* 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 errgroup
import (
"fmt"
"reflect"
"testing"
)
func TestGroupWithNErrs(t *testing.T) {
err1 := fmt.Errorf("errgroup_test: 1")
err2 := fmt.Errorf("errgroup_test: 2")
cases := []struct {
errs []error
}{
{errs: []error{nil}},
{errs: []error{err1}},
{errs: []error{err1, nil}},
{errs: []error{err1, nil, err2}},
}
for j, tc := range cases {
t.Run(fmt.Sprintf("Test%d", j+1), func(t *testing.T) {
g := WithNErrs(len(tc.errs))
for i, err := range tc.errs {
err := err
g.Go(func() error { return err }, i)
}
gotErrs := g.Wait()
if !reflect.DeepEqual(gotErrs, tc.errs) {
t.Errorf("Expected %#v, got %#v", tc.errs, gotErrs)
}
})
}
}