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			103 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
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			103 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
/*
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 * Minio Cloud Storage, (C) 2017 Minio, Inc.
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 *
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 * Licensed under the Apache License, Version 2.0 (the "License");
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 * you may not use this file except in compliance with the License.
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 * You may obtain a copy of the License at
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 *
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 *     http://www.apache.org/licenses/LICENSE-2.0
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 *
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 * Unless required by applicable law or agreed to in writing, software
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 * distributed under the License is distributed on an "AS IS" BASIS,
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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 * See the License for the specific language governing permissions and
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 * limitations under the License.
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 */
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package cmd
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import (
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	"os"
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	"path/filepath"
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	"testing"
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)
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// TestFSFormatFS - tests initFormatFS, formatMetaGetFormatBackendFS, formatFSGetVersion.
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func TestFSFormatFS(t *testing.T) {
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	// Prepare for testing
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	disk := filepath.Join(globalTestTmpDir, "minio-"+nextSuffix())
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	defer os.RemoveAll(disk)
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	fsFormatPath := pathJoin(disk, minioMetaBucket, formatConfigFile)
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	// Assign a new UUID.
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	uuid := mustGetUUID()
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	// Initialize meta volume, if volume already exists ignores it.
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	if err := initMetaVolumeFS(disk, uuid); err != nil {
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		t.Fatal(err)
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	}
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	rlk, err := initFormatFS(disk)
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	if err != nil {
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		t.Fatal(err)
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	}
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	rlk.Close()
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	// Do the basic sanity checks to check if initFormatFS() did its job.
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	f, err := os.OpenFile(fsFormatPath, os.O_RDWR, 0)
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	if err != nil {
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		t.Fatal(err)
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	}
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	defer f.Close()
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	format, err := formatMetaGetFormatBackendFS(f)
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	if err != nil {
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		t.Fatal(err)
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	}
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	if format != formatBackendFS {
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		t.Fatalf(`expected: %s, got: %s`, formatBackendFS, format)
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	}
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	version, err := formatFSGetVersion(f)
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	if err != nil {
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		t.Fatal(err)
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	}
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	if version != formatFSVersionV1 {
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		t.Fatalf(`expected: %s, got: %s`, formatFSVersionV1, version)
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	}
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	// Corrupt the format.json file and test the functions.
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	// formatMetaGetFormatBackendFS, formatFSGetVersion, initFormatFS should return errors.
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	if err = f.Truncate(0); err != nil {
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		t.Fatal(err)
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	}
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	if _, err = f.WriteString("b"); err != nil {
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		t.Fatal(err)
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	}
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	if _, err = formatMetaGetFormatBackendFS(f); err == nil {
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		t.Fatal("expected to fail")
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	}
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	if _, err = formatFSGetVersion(rlk); err == nil {
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		t.Fatal("expected to fail")
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	}
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	if _, err = initFormatFS(disk); err == nil {
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		t.Fatal("expected to fail")
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	}
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	// With unknown formatMetaV1.Version formatMetaGetFormatBackendFS, initFormatFS should return error.
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	if err = f.Truncate(0); err != nil {
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		t.Fatal(err)
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	}
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	// Here we set formatMetaV1.Version to "2"
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	if _, err = f.WriteString(`{"version":"2","format":"fs","fs":{"version":"1"}}`); err != nil {
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		t.Fatal(err)
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	}
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	if _, err = formatMetaGetFormatBackendFS(f); err == nil {
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		t.Fatal("expected to fail")
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	}
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	if _, err = initFormatFS(disk); err == nil {
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		t.Fatal("expected to fail")
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	}
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}
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