Azure storage driver implementation

Signed-off-by: Ahmet Alp Balkan <ahmetalpbalkan@gmail.com>

storagedriver/azure/azure_test.go

@@ -0,0 +1,65 @@
+package azure
+
+import (
+	"fmt"
+	"os"
+	"strings"
+	"testing"
+
+	"github.com/docker/docker-registry/storagedriver"
+	"github.com/docker/docker-registry/storagedriver/testsuites"
+	. "gopkg.in/check.v1"
+)
+
+const (
+	envAccountName = "AZURE_STORAGE_ACCOUNT_NAME"
+	envAccountKey  = "AZURE_STORAGE_ACCOUNT_KEY"
+	envContainer   = "AZURE_STORAGE_CONTAINER"
+)
+
+// Hook up gocheck into the "go test" runner.
+func Test(t *testing.T) { TestingT(t) }
+
+func init() {
+	var (
+		accountName string
+		accountKey  string
+		container   string
+	)
+
+	config := []struct {
+		env   string
+		value *string
+	}{
+		{envAccountName, &accountName},
+		{envAccountKey, &accountKey},
+		{envContainer, &container},
+	}
+
+	missing := []string{}
+	for _, v := range config {
+		*v.value = os.Getenv(v.env)
+		if *v.value == "" {
+			missing = append(missing, v.env)
+		}
+	}
+
+	azureDriverConstructor := func() (storagedriver.StorageDriver, error) {
+		return New(accountName, accountKey, container)
+	}
+
+	// Skip Azure storage driver tests if environment variable parameters are not provided
+	skipCheck := func() string {
+		if len(missing) > 0 {
+			return fmt.Sprintf("Must set %s environment variables to run Azure tests", strings.Join(missing, ", "))
+		}
+		return ""
+	}
+
+	testsuites.RegisterInProcessSuite(azureDriverConstructor, skipCheck)
+	testsuites.RegisterIPCSuite(driverName, map[string]string{
+		paramAccountName: accountName,
+		paramAccountKey:  accountKey,
+		paramContainer:   container,
+	}, skipCheck)
+}