mirror of
https://github.com/minio/minio
synced 2024-11-05 17:34:01 +00:00
500 lines
22 KiB
Go
500 lines
22 KiB
Go
/*
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* Minio Cloud Storage, (C) 2016 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 main
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import (
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"bytes"
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"fmt"
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"io"
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"strings"
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"testing"
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)
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// Wrapper for calling GetObject tests for both XL multiple disks and single node setup.
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func TestGetObject(t *testing.T) {
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ExecObjectLayerTest(t, testGetObject)
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}
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// ObjectLayer.GetObject is called with series of cases for valid and erroneous inputs and the result is validated.
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func testGetObject(obj ObjectLayer, instanceType string, t TestErrHandler) {
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// Setup for the tests.
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bucketName := getRandomBucketName()
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objectName := "test-object"
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// create bucket.
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err := obj.MakeBucket(bucketName)
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// Stop the test if creation of the bucket fails.
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if err != nil {
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t.Fatalf("%s : %s", instanceType, err.Error())
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}
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// set of byte data for PutObject.
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// object has to be inserted before running tests for GetObject.
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// this is required even to assert the GetObject data,
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// since dataInserted === dataFetched back is a primary criteria for any object storage this assertion is critical.
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bytesData := []struct {
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byteData []byte
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}{
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{generateBytesData(6 * 1024 * 1024)},
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}
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// set of inputs for uploading the objects before tests for downloading is done.
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putObjectInputs := []struct {
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bucketName string
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objectName string
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contentLength int64
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textData []byte
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metaData map[string]string
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}{
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// case - 1.
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{bucketName, objectName, int64(len(bytesData[0].byteData)), bytesData[0].byteData, make(map[string]string)},
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}
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// iterate through the above set of inputs and upkoad the object.
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for i, input := range putObjectInputs {
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// uploading the object.
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_, err = obj.PutObject(input.bucketName, input.objectName, input.contentLength, bytes.NewBuffer(input.textData), input.metaData)
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// if object upload fails stop the test.
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if err != nil {
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t.Fatalf("Put Object case %d: Error uploading object: <ERROR> %v", i+1, err)
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}
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}
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// set of empty buffers used to fill GetObject data.
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buffers := []*bytes.Buffer{
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new(bytes.Buffer),
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new(bytes.Buffer),
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}
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// test cases with set of inputs
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testCases := []struct {
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bucketName string
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objectName string
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startOffset int64
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length int64
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// data obtained/fetched from GetObject.
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getObjectData *bytes.Buffer
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// writer which governs the write into the `getObjectData`.
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writer io.Writer
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// flag indicating whether the test for given ase should pass.
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shouldPass bool
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// expected Result.
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expectedData []byte
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err error
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}{
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// Test case 1-4.
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// Cases with invalid bucket names.
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{".test", "obj", 0, 0, nil, nil, false, []byte(""), fmt.Errorf("%s", "Bucket name invalid: .test")},
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{"------", "obj", 0, 0, nil, nil, false, []byte(""), fmt.Errorf("%s", "Bucket name invalid: ------")},
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{"$this-is-not-valid-too", "obj", 0, 0, nil, nil, false,
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[]byte(""), fmt.Errorf("%s", "Bucket name invalid: $this-is-not-valid-too")},
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{"a", "obj", 0, 0, nil, nil, false, []byte(""), fmt.Errorf("%s", "Bucket name invalid: a")},
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// Test case - 5.
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// Case with invalid object names.
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{bucketName, "", 0, 0, nil, nil, false, []byte(""), fmt.Errorf("%s", "Object name invalid: "+bucketName+"#")},
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// Test case - 6.
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// Valid object and bucket names but non-existent bucket.
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// {"abc", "def", 0, 0, nil, nil, false, []byte(""), fmt.Errorf("%s", "Bucket not found: abc")},
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// A custom writer is sent as an argument.
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// Its designed to return a EOF error after reading `n` bytes, where `n` is the argument when initializing the EOF writer.
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// This is to simulate the case of cache not filling up completly, since the EOFWriter doesn't allow the write to complete,
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// the cache gets filled up with partial data. The following up test case will read the object completly, tests the
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// purging of the cache during the incomplete write.
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// Test case - 7.
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{bucketName, objectName, 0, int64(len(bytesData[0].byteData)), buffers[0], NewEOFWriter(buffers[0], 100), false, []byte{}, io.EOF},
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// Test case with start offset set to 0 and length set to size of the object.
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// Fetching the entire object.
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// Test case - 8.
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{bucketName, objectName, 0, int64(len(bytesData[0].byteData)), buffers[1], buffers[1], true, bytesData[0].byteData, nil},
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// Test case with content-range 1 to objectSize .
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// Test case - 9.
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{bucketName, objectName, 1, int64(len(bytesData[0].byteData) - 1), buffers[1], buffers[1], true, bytesData[0].byteData[1:], nil},
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// Test case with content-range 100 to objectSize - 100.
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// Test case - 10.
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{bucketName, objectName, 100, int64(len(bytesData[0].byteData) - 200), buffers[1], buffers[1], true,
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bytesData[0].byteData[100 : len(bytesData[0].byteData)-100], nil},
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// Test case with offset greater than the size of the object
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// Test case - 11.
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{bucketName, objectName, int64(len(bytesData[0].byteData) + 1), int64(len(bytesData[0].byteData)), buffers[0],
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NewEOFWriter(buffers[0], 100), false, []byte{},
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InvalidRange{int64(len(bytesData[0].byteData) + 1), int64(len(bytesData[0].byteData)), int64(len(bytesData[0].byteData))}},
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// Test case with offset greater than the size of the object.
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// Test case - 12.
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{bucketName, objectName, -1, int64(len(bytesData[0].byteData)), buffers[0], new(bytes.Buffer), false, []byte{}, errUnexpected},
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// Test case length parameter is more than the object size.
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// Test case - 13.
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{bucketName, objectName, 0, int64(len(bytesData[0].byteData) + 1), buffers[1], buffers[1], false, bytesData[0].byteData,
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InvalidRange{0, int64(len(bytesData[0].byteData) + 1), int64(len(bytesData[0].byteData))}},
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// Test case with `length` parameter set to a negative value.
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// Test case - 14.
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{bucketName, objectName, 0, int64(-1), buffers[1], buffers[1], false, bytesData[0].byteData, errUnexpected},
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// Test case with offset + length > objectSize parameter set to a negative value.
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// Test case - 15.
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{bucketName, objectName, 2, int64(len(bytesData[0].byteData)), buffers[1], buffers[1], false, bytesData[0].byteData,
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InvalidRange{2, int64(len(bytesData[0].byteData)), int64(len(bytesData[0].byteData))}},
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// Test case with the writer set to nil.
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// Test case - 16.
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{bucketName, objectName, 0, int64(len(bytesData[0].byteData)), buffers[1], nil, false, bytesData[0].byteData, errUnexpected},
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}
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for i, testCase := range testCases {
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err = obj.GetObject(testCase.bucketName, testCase.objectName, testCase.startOffset, testCase.length, testCase.writer)
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if err != nil && testCase.shouldPass {
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t.Errorf("Test %d: %s: Expected to pass, but failed with: <ERROR> %s", i+1, instanceType, err.Error())
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}
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if err == nil && !testCase.shouldPass {
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t.Errorf("Test %d: %s: Expected to fail with <ERROR> \"%s\", but passed instead.", i+1, instanceType, testCase.err.Error())
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}
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// Failed as expected, but does it fail for the expected reason.
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if err != nil && !testCase.shouldPass {
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if !strings.Contains(err.Error(), testCase.err.Error()) {
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t.Errorf("Test %d: %s: Expected to fail with error \"%s\", but instead failed with error \"%s\" instead.", i+1, instanceType, testCase.err.Error(), err.Error())
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}
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}
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// Since there are cases for which GetObject fails, this is
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// necessary. Test passes as expected, but the output values
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// are verified for correctness here.
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if err == nil && testCase.shouldPass {
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if !bytes.Equal(testCase.expectedData, testCase.getObjectData.Bytes()) {
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t.Errorf("Test %d: %s: Data Mismatch: Expected data and the fetched data from GetObject doesn't match.", i+1, instanceType)
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}
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// empty the buffer so that it can be used to further cases.
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testCase.getObjectData.Reset()
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}
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}
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}
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// Wrapper for calling GetObject tests for both XL multiple disks and single node setup.
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func TestGetObjectDiskNotFound(t *testing.T) {
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ExecObjectLayerDiskNotFoundTest(t, testGetObjectDiskNotFound)
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}
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// ObjectLayer.GetObject is called with series of cases for valid and erroneous inputs and the result is validated.
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// Before the Get Object call XL disks are moved so that the quorum just holds.
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func testGetObjectDiskNotFound(obj ObjectLayer, instanceType string, disks []string, t *testing.T) {
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// Setup for the tests.
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bucketName := getRandomBucketName()
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objectName := "test-object"
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// create bucket.
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err := obj.MakeBucket(bucketName)
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// Stop the test if creation of the bucket fails.
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if err != nil {
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t.Fatalf("%s : %s", instanceType, err.Error())
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}
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// set of byte data for PutObject.
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// object has to be inserted before running tests for GetObject.
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// this is required even to assert the GetObject data,
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// since dataInserted === dataFetched back is a primary criteria for any object storage this assertion is critical.
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bytesData := []struct {
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byteData []byte
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}{
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{generateBytesData(6 * 1024 * 1024)},
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}
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// set of inputs for uploading the objects before tests for downloading is done.
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putObjectInputs := []struct {
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bucketName string
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objectName string
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contentLength int64
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textData []byte
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metaData map[string]string
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}{
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// case - 1.
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{bucketName, objectName, int64(len(bytesData[0].byteData)), bytesData[0].byteData, make(map[string]string)},
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}
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// iterate through the above set of inputs and upkoad the object.
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for i, input := range putObjectInputs {
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// uploading the object.
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_, err = obj.PutObject(input.bucketName, input.objectName, input.contentLength, bytes.NewBuffer(input.textData), input.metaData)
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// if object upload fails stop the test.
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if err != nil {
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t.Fatalf("Put Object case %d: Error uploading object: <ERROR> %v", i+1, err)
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}
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}
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// Take 8 disks down before GetObject is called, one more we loose quorum on 16 disk node.
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for _, disk := range disks[:8] {
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removeAll(disk)
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}
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// set of empty buffers used to fill GetObject data.
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buffers := []*bytes.Buffer{
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new(bytes.Buffer),
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new(bytes.Buffer),
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}
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// test cases with set of inputs
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testCases := []struct {
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bucketName string
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objectName string
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startOffset int64
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length int64
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// data obtained/fetched from GetObject.
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getObjectData *bytes.Buffer
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// writer which governs the write into the `getObjectData`.
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writer io.Writer
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// flag indicating whether the test for given ase should pass.
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shouldPass bool
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// expected Result.
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expectedData []byte
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err error
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}{
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// Test case 1-4.
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// Cases with invalid bucket names.
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{".test", "obj", 0, 0, nil, nil, false, []byte(""), fmt.Errorf("%s", "Bucket name invalid: .test")},
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{"------", "obj", 0, 0, nil, nil, false, []byte(""), fmt.Errorf("%s", "Bucket name invalid: ------")},
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{"$this-is-not-valid-too", "obj", 0, 0, nil, nil, false,
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[]byte(""), fmt.Errorf("%s", "Bucket name invalid: $this-is-not-valid-too")},
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{"a", "obj", 0, 0, nil, nil, false, []byte(""), fmt.Errorf("%s", "Bucket name invalid: a")},
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// Test case - 5.
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// Case with invalid object names.
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{bucketName, "", 0, 0, nil, nil, false, []byte(""), fmt.Errorf("%s", "Object name invalid: "+bucketName+"#")},
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// Test case - 6.
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// Valid object and bucket names but non-existent bucket.
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// {"abc", "def", 0, 0, nil, nil, false, []byte(""), fmt.Errorf("%s", "Bucket not found: abc")},
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// A custom writer is sent as an argument.
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// Its designed to return a EOF error after reading `n` bytes, where `n` is the argument when initializing the EOF writer.
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// This is to simulate the case of cache not filling up completly, since the EOFWriter doesn't allow the write to complete,
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// the cache gets filled up with partial data. The following up test case will read the object completly, tests the
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// purging of the cache during the incomplete write.
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// Test case - 7.
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{bucketName, objectName, 0, int64(len(bytesData[0].byteData)), buffers[0], NewEOFWriter(buffers[0], 100), false, []byte{}, io.EOF},
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// Test case with start offset set to 0 and length set to size of the object.
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// Fetching the entire object.
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// Test case - 8.
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{bucketName, objectName, 0, int64(len(bytesData[0].byteData)), buffers[1], buffers[1], true, bytesData[0].byteData, nil},
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// Test case with content-range 1 to objectSize .
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// Test case - 9.
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{bucketName, objectName, 1, int64(len(bytesData[0].byteData) - 1), buffers[1], buffers[1], true, bytesData[0].byteData[1:], nil},
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// Test case with content-range 100 to objectSize - 100.
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// Test case - 10.
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{bucketName, objectName, 100, int64(len(bytesData[0].byteData) - 200), buffers[1], buffers[1], true,
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bytesData[0].byteData[100 : len(bytesData[0].byteData)-100], nil},
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// Test case with offset greater than the size of the object
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// Test case - 11.
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{bucketName, objectName, int64(len(bytesData[0].byteData) + 1), int64(len(bytesData[0].byteData)), buffers[0],
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NewEOFWriter(buffers[0], 100), false, []byte{},
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InvalidRange{int64(len(bytesData[0].byteData) + 1), int64(len(bytesData[0].byteData)), int64(len(bytesData[0].byteData))}},
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// Test case with offset greater than the size of the object.
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// Test case - 12.
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{bucketName, objectName, -1, int64(len(bytesData[0].byteData)), buffers[0], new(bytes.Buffer), false, []byte{}, errUnexpected},
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// Test case length parameter is more than the object size.
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// Test case - 13.
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{bucketName, objectName, 0, int64(len(bytesData[0].byteData) + 1), buffers[1], buffers[1], false, bytesData[0].byteData,
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InvalidRange{0, int64(len(bytesData[0].byteData) + 1), int64(len(bytesData[0].byteData))}},
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// Test case with `length` parameter set to a negative value.
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// Test case - 14.
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{bucketName, objectName, 0, int64(-1), buffers[1], buffers[1], false, bytesData[0].byteData, errUnexpected},
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// Test case with offset + length > objectSize parameter set to a negative value.
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// Test case - 15.
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{bucketName, objectName, 2, int64(len(bytesData[0].byteData)), buffers[1], buffers[1], false, bytesData[0].byteData,
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InvalidRange{2, int64(len(bytesData[0].byteData)), int64(len(bytesData[0].byteData))}},
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// Test case with the writer set to nil.
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// Test case - 16.
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{bucketName, objectName, 0, int64(len(bytesData[0].byteData)), buffers[1], nil, false, bytesData[0].byteData, errUnexpected},
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}
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for i, testCase := range testCases {
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err = obj.GetObject(testCase.bucketName, testCase.objectName, testCase.startOffset, testCase.length, testCase.writer)
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if err != nil && testCase.shouldPass {
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t.Errorf("Test %d: %s: Expected to pass, but failed with: <ERROR> %s", i+1, instanceType, err.Error())
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}
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if err == nil && !testCase.shouldPass {
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t.Errorf("Test %d: %s: Expected to fail with <ERROR> \"%s\", but passed instead.", i+1, instanceType, testCase.err.Error())
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}
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// Failed as expected, but does it fail for the expected reason.
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if err != nil && !testCase.shouldPass {
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if !strings.Contains(err.Error(), testCase.err.Error()) {
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t.Errorf("Test %d: %s: Expected to fail with error \"%s\", but instead failed with error \"%s\" instead.", i+1, instanceType, testCase.err.Error(), err.Error())
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}
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}
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// Since there are cases for which GetObject fails, this is
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// necessary. Test passes as expected, but the output values
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// are verified for correctness here.
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if err == nil && testCase.shouldPass {
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if !bytes.Equal(testCase.expectedData, testCase.getObjectData.Bytes()) {
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t.Errorf("Test %d: %s: Data Mismatch: Expected data and the fetched data from GetObject doesn't match.", i+1, instanceType)
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}
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// empty the buffer so that it can be used to further cases.
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testCase.getObjectData.Reset()
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}
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}
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}
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// Benchmarks for ObjectLayer.GetObject().
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// The intent is to benchmark GetObject for various sizes ranging from few bytes to 100MB.
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// Also each of these Benchmarks are run both XL and FS backends.
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// BenchmarkGetObjectVerySmallFS - Benchmark FS.GetObject() for object size of 10 bytes.
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func BenchmarkGetObjectVerySmallFS(b *testing.B) {
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benchmarkGetObject(b, "FS", 10)
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}
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// BenchmarkGetObjectVerySmallXL - Benchmark XL.GetObject() for object size of 10 bytes.
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func BenchmarkGetObjectVerySmallXL(b *testing.B) {
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benchmarkGetObject(b, "XL", 10)
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}
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// BenchmarkGetObject10KbFS - Benchmark FS.GetObject() for object size of 10KB.
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func BenchmarkGetObject10KbFS(b *testing.B) {
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benchmarkGetObject(b, "FS", 10*1024)
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}
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// BenchmarkGetObject10KbXL - Benchmark XL.GetObject() for object size of 10KB.
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func BenchmarkGetObject10KbXL(b *testing.B) {
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benchmarkGetObject(b, "XL", 10*1024)
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}
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// BenchmarkGetObject100KbFS - Benchmark FS.GetObject() for object size of 100KB.
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func BenchmarkGetObject100KbFS(b *testing.B) {
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benchmarkGetObject(b, "FS", 100*1024)
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}
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// BenchmarkGetObject100KbXL - Benchmark XL.GetObject() for object size of 100KB.
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func BenchmarkGetObject100KbXL(b *testing.B) {
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benchmarkGetObject(b, "XL", 100*1024)
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}
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// BenchmarkGetObject1MbFS - Benchmark FS.GetObject() for object size of 1MB.
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func BenchmarkGetObject1MbFS(b *testing.B) {
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benchmarkGetObject(b, "FS", 1024*1024)
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}
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// BenchmarkGetObject1MbXL - Benchmark XL.GetObject() for object size of 1MB.
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func BenchmarkGetObject1MbXL(b *testing.B) {
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benchmarkGetObject(b, "XL", 1024*1024)
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}
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// BenchmarkGetObject5MbFS - Benchmark FS.GetObject() for object size of 5MB.
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func BenchmarkGetObject5MbFS(b *testing.B) {
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benchmarkGetObject(b, "FS", 5*1024*1024)
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}
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// BenchmarkGetObject5MbXL - Benchmark XL.GetObject() for object size of 5MB.
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func BenchmarkGetObject5MbXL(b *testing.B) {
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benchmarkGetObject(b, "XL", 5*1024*1024)
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}
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// BenchmarkGetObject10MbFS - Benchmark FS.GetObject() for object size of 10MB.
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func BenchmarkGetObject10MbFS(b *testing.B) {
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benchmarkGetObject(b, "FS", 10*1024*1024)
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}
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// BenchmarkGetObject10MbXL - Benchmark XL.GetObject() for object size of 10MB.
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func BenchmarkGetObject10MbXL(b *testing.B) {
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benchmarkGetObject(b, "XL", 10*1024*1024)
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}
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// BenchmarkGetObject25MbFS - Benchmark FS.GetObject() for object size of 25MB.
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func BenchmarkGetObject25MbFS(b *testing.B) {
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benchmarkGetObject(b, "FS", 25*1024*1024)
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}
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// BenchmarkGetObject25MbXL - Benchmark XL.GetObject() for object size of 25MB.
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func BenchmarkGetObject25MbXL(b *testing.B) {
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benchmarkGetObject(b, "XL", 25*1024*1024)
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}
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// BenchmarkGetObject50MbFS - Benchmark FS.GetObject() for object size of 50MB.
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func BenchmarkGetObject50MbFS(b *testing.B) {
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benchmarkGetObject(b, "FS", 50*1024*1024)
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}
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// BenchmarkGetObject50MbXL - Benchmark XL.GetObject() for object size of 50MB.
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func BenchmarkGetObject50MbXL(b *testing.B) {
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benchmarkGetObject(b, "XL", 50*1024*1024)
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}
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// parallel benchmarks for ObjectLayer.GetObject() .
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// BenchmarkGetObjectParallelVerySmallFS - Benchmark FS.GetObject() for object size of 10 bytes.
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func BenchmarkGetObjectParallelVerySmallFS(b *testing.B) {
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benchmarkGetObjectParallel(b, "FS", 10)
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}
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// BenchmarkGetObjectParallelVerySmallXL - Benchmark XL.GetObject() for object size of 10 bytes.
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func BenchmarkGetObjectParallelVerySmallXL(b *testing.B) {
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benchmarkGetObjectParallel(b, "XL", 10)
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}
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// BenchmarkGetObjectParallel10KbFS - Benchmark FS.GetObject() for object size of 10KB.
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func BenchmarkGetObjectParallel10KbFS(b *testing.B) {
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benchmarkGetObjectParallel(b, "FS", 10*1024)
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}
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// BenchmarkGetObjectParallel10KbXL - Benchmark XL.GetObject() for object size of 10KB.
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func BenchmarkGetObjectParallel10KbXL(b *testing.B) {
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benchmarkGetObjectParallel(b, "XL", 10*1024)
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}
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// BenchmarkGetObjectParallel100KbFS - Benchmark FS.GetObject() for object size of 100KB.
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func BenchmarkGetObjectParallel100KbFS(b *testing.B) {
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benchmarkGetObjectParallel(b, "FS", 100*1024)
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}
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// BenchmarkGetObjectParallel100KbXL - Benchmark XL.GetObject() for object size of 100KB.
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func BenchmarkGetObjectParallel100KbXL(b *testing.B) {
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benchmarkGetObjectParallel(b, "XL", 100*1024)
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}
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// BenchmarkGetObjectParallel1MbFS - Benchmark FS.GetObject() for object size of 1MB.
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func BenchmarkGetObjectParallel1MbFS(b *testing.B) {
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benchmarkGetObjectParallel(b, "FS", 1024*1024)
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}
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// BenchmarkGetObjectParallel1MbXL - Benchmark XL.GetObject() for object size of 1MB.
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func BenchmarkGetObjectParallel1MbXL(b *testing.B) {
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benchmarkGetObjectParallel(b, "XL", 1024*1024)
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}
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// BenchmarkGetObjectParallel5MbFS - Benchmark FS.GetObject() for object size of 5MB.
|
|
func BenchmarkGetObjectParallel5MbFS(b *testing.B) {
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|
benchmarkGetObjectParallel(b, "FS", 5*1024*1024)
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}
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// BenchmarkGetObjectParallel5MbXL - Benchmark XL.GetObject() for object size of 5MB.
|
|
func BenchmarkGetObjectParallel5MbXL(b *testing.B) {
|
|
benchmarkGetObjectParallel(b, "XL", 5*1024*1024)
|
|
}
|
|
|
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// BenchmarkGetObjectParallel10MbFS - Benchmark FS.GetObject() for object size of 10MB.
|
|
func BenchmarkGetObjectParallel10MbFS(b *testing.B) {
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|
benchmarkGetObjectParallel(b, "FS", 10*1024*1024)
|
|
}
|
|
|
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// BenchmarkGetObjectParallel10MbXL - Benchmark XL.GetObject() for object size of 10MB.
|
|
func BenchmarkGetObjectParallel10MbXL(b *testing.B) {
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|
benchmarkGetObjectParallel(b, "XL", 10*1024*1024)
|
|
}
|
|
|
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// BenchmarkGetObjectParallel25MbFS - Benchmark FS.GetObject() for object size of 25MB.
|
|
func BenchmarkGetObjectParallel25MbFS(b *testing.B) {
|
|
benchmarkGetObjectParallel(b, "FS", 25*1024*1024)
|
|
|
|
}
|
|
|
|
// BenchmarkGetObjectParallel25MbXL - Benchmark XL.GetObject() for object size of 25MB.
|
|
func BenchmarkGetObjectParallel25MbXL(b *testing.B) {
|
|
benchmarkGetObjectParallel(b, "XL", 25*1024*1024)
|
|
}
|
|
|
|
// BenchmarkGetObjectParallel50MbFS - Benchmark FS.GetObject() for object size of 50MB.
|
|
func BenchmarkGetObjectParallel50MbFS(b *testing.B) {
|
|
benchmarkGetObjectParallel(b, "FS", 50*1024*1024)
|
|
}
|
|
|
|
// BenchmarkGetObjectParallel50MbXL - Benchmark XL.GetObject() for object size of 50MB.
|
|
func BenchmarkGetObjectParallel50MbXL(b *testing.B) {
|
|
benchmarkGetObjectParallel(b, "XL", 50*1024*1024)
|
|
}
|