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mem_test.go
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// Copyright © 2019 The Things Network Foundation, The Things Industries B.V.
//
// 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 fetch_test
import (
"fmt"
"testing"
"github.com/smartystreets/assertions"
"go.thethings.network/lorawan-stack/v3/pkg/fetch"
"go.thethings.network/lorawan-stack/v3/pkg/util/test/assertions/should"
)
func ExampleNewMemFetcher() {
fetcher := fetch.NewMemFetcher(map[string][]byte{
"file.txt": []byte("content"),
"dir/file.txt": []byte("content"),
})
content, err := fetcher.File("dir/file.txt")
if err != nil {
panic(err)
}
fmt.Println("Content of myFile.yml")
fmt.Println(string(content))
}
func TestMemFetcher(t *testing.T) {
a := assertions.New(t)
fetcher := fetch.NewMemFetcher(map[string][]byte{
"file.txt": []byte("content1"),
"dir/file.txt": []byte("content2"),
})
// Read a file and test content retrieval.
{
content, err := fetcher.File("file.txt")
a.So(err, should.BeNil)
a.So(string(content), should.Equal, "content1")
}
// Read from a subdirectory and test content retrieval.
{
content, err := fetcher.File("dir", "file.txt")
a.So(err, should.BeNil)
a.So(string(content), should.Equal, "content2")
}
// Read from a non existing path.
{
_, err := fetcher.File("notfound.txt")
a.So(err, should.NotBeNil)
}
}