Function testGetObjectReadAtWhenEOFWasReached

functional_tests.go:5669–5769

Reproduces issue https://github.com/minio/minio-go/issues/1137

()

// Reproduces issue https://github.com/minio/minio-go/issues/1137
func testGetObjectReadAtWhenEOFWasReached() {
	// initialize logging params
	startTime := time.Now()
	testName := getFuncName()
	function := "GetObject(bucketName, objectName)"
	args := map[string]interface{}{}

	c, err := NewClient(ClientConfig{})
	if err != nil {
		logError(testName, function, args, startTime, "", "MinIO client object creation failed", err)
		return
	}

	// Generate a new random bucket name.
	bucketName := randString(60, rand.NewSource(time.Now().UnixNano()), "minio-go-test-")
	args["bucketName"] = bucketName

	// Make a new bucket.
	err = c.MakeBucket(context.Background(), bucketName, minio.MakeBucketOptions{Region: "us-east-1"})
	if err != nil {
		logError(testName, function, args, startTime, "", "MakeBucket failed", err)
		return
	}

	defer cleanupBucket(bucketName, c)

	// Generate 33K of data.
	bufSize := dataFileMap["datafile-33-kB"]
	reader := getDataReader("datafile-33-kB")
	defer reader.Close()

	objectName := randString(60, rand.NewSource(time.Now().UnixNano()), "")
	args["objectName"] = objectName

	buf, err := io.ReadAll(reader)
	if err != nil {
		logError(testName, function, args, startTime, "", "ReadAll failed", err)
		return
	}

	// Save the data
	_, err = c.PutObject(context.Background(), bucketName, objectName, bytes.NewReader(buf), int64(len(buf)), minio.PutObjectOptions{ContentType: "binary/octet-stream"})
	if err != nil {
		logError(testName, function, args, startTime, "", "PutObject failed", err)
		return
	}

	// read the data back
	r, err := c.GetObject(context.Background(), bucketName, objectName, minio.GetObjectOptions{})
	if err != nil {
		logError(testName, function, args, startTime, "", "PutObject failed", err)
		return
	}

	// read directly
	buf1 := make([]byte, len(buf))
	buf2 := make([]byte, 512)