upload/azure: delete the unused test

This test is not run anywhere because it was surpassed by image tests with
azure boot type which perform more than just uploading a randomly generated
file to Azure. Let's delete dead code.

internal/upload/azure/azure_test.go

@@ -1,119 +0,0 @@
-package azure
-
-import (
-	"bytes"
-	"context"
-	"crypto/md5"
-	"fmt"
-	"io"
-	"net/url"
-	"os"
-	"os/exec"
-	"path"
-	"testing"
-
-	"github.com/Azure/azure-storage-blob-go/azblob"
-)
-
-func handleErrors(t *testing.T, err error) {
-	if err != nil {
-		t.Fatal(err)
-	}
-}
-
-func loadEnvVar(t *testing.T, envVarName string) (string, bool) {
-	variable, exists := os.LookupEnv(envVarName)
-	if !exists {
-		t.Logf("Environment variable does not exist: %s", envVarName)
-		return "", false
-	}
-	return variable, true
-}
-
-func TestAzure_FileUpload(t *testing.T) {
-	// Load configuration
-	storageAccount, saExists := loadEnvVar(t, "AZURE_STORAGE_ACCOUNT")
-	storageAccessKey, sakExists := loadEnvVar(t, "AZURE_STORAGE_ACCESS_KEY")
-	containerName, cnExists := loadEnvVar(t, "AZURE_STORAGE_CONTAINER")
-	fileName := "/tmp/testing-image.vhd"
-	var threads int = 4
-
-	// If non of the variables is set, just ignore the test
-	if saExists == false && sakExists == false && cnExists == false {
-		t.Log("No AZURE configuration provided, assuming that this is running in CI. Skipping the test.")
-		return
-	}
-	// If only one/two of them are not set, then fail
-	if saExists == false || sakExists == false || cnExists == false {
-		t.Fatal("You need to define all variables for AZURE connection.")
-	}
-
-	// Prepare the file
-	cmd := exec.Command("dd", "bs=512", "count=512", "if=/dev/urandom", fmt.Sprintf("of=%s", fileName))
-	err := cmd.Run()
-	handleErrors(t, err)
-	t.Log("Image to upload is:", fileName)
-
-	// Calculate MD5 sum of the file
-	f, err := os.Open(fileName)
-	handleErrors(t, err)
-
-	h := md5.New()
-	_, err = io.Copy(h, f)
-	handleErrors(t, err)
-	imageChecksum := h.Sum(nil)
-	err = f.Close()
-	handleErrors(t, err)
-
-	credentials := Credentials{
-		StorageAccount:   storageAccount,
-		StorageAccessKey: storageAccessKey,
-	}
-	metadata := ImageMetadata{
-		ImageName:     path.Base(fileName),
-		ContainerName: containerName,
-	}
-	// Upload the image
-	err = UploadImage(credentials, metadata, fileName, threads)
-	handleErrors(t, err)
-
-	// Download the image
-	// Create a default request pipeline using your storage account name and account key.
-	credential, err := azblob.NewSharedKeyCredential(credentials.StorageAccount, credentials.StorageAccessKey)
-	handleErrors(t, err)
-
-	p := azblob.NewPipeline(credential, azblob.PipelineOptions{})
-
-	// get storage account blob service URL endpoint.
-	URL, _ := url.Parse(fmt.Sprintf("https://%s.blob.core.windows.net/%s", credentials.StorageAccount, metadata.ContainerName))
-
-	// Create a ContainerURL object that wraps the container URL and a request
-	// pipeline to make requests.
-	containerURL := azblob.NewContainerURL(*URL, p)
-
-	// Create the container, use a never-expiring context
-	ctx := context.Background()
-
-	blobURL := containerURL.NewPageBlobURL(metadata.ImageName)
-
-	get, err := blobURL.Download(ctx, 0, 0, azblob.BlobAccessConditions{}, false)
-	handleErrors(t, err)
-	blobData := &bytes.Buffer{}
-	reader := get.Body(azblob.RetryReaderOptions{})
-	_, err = blobData.ReadFrom(reader)
-	handleErrors(t, err)
-	reader.Close() // The client must close the response body when finished with it
-	blobBytes := blobData.Bytes()
-	blobChecksum := md5.Sum(blobBytes)
-	t.Logf("Local image checksum:      %x\n", imageChecksum)
-	t.Logf("Downloaded blob checksum : %x\n", blobChecksum)
-
-	// Delete the blob and throw away any errors
-	_, _ = blobURL.Delete(ctx, azblob.DeleteSnapshotsOptionInclude, azblob.BlobAccessConditions{})
-	_ = os.Remove(fileName)
-
-	if !bytes.Equal(imageChecksum, blobChecksum[:]) {
-		t.Fatalf("Checksums do not match! Local file: %x, cloud blob: %x", imageChecksum, blobChecksum[:])
-	}
-
-}