test: add unit-test

.travis.yml

@@ -9,5 +9,5 @@ before_install:
   - GO111MODULE=off go get github.com/mattn/goveralls
 
 script:
-  - go test -covermode=count -coverprofile=profile.cov ./pkg/...
+  - sudo -E env "PATH=$PATH" go test -covermode=count -coverprofile=profile.cov ./pkg/...
   - $GOPATH/bin/goveralls -coverprofile=profile.cov -service=travis-ci

pkg/blobfuse/blobfuse_test.go

@@ -26,6 +26,24 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
+const (
+	fakeNodeID     = "fakeNodeID"
+	fakeDriverName = "fake"
+	vendorVersion  = "0.3.0"
+)
+
+func NewFakeDriver() *Driver {
+	driver := NewDriver(fakeNodeID)
+	driver.Name = fakeDriverName
+	driver.Version = vendorVersion
+	return driver
+}
+
+func TestNewFakeDriver(t *testing.T) {
+	d := NewDriver(fakeNodeID)
+	assert.NotNil(t, d)
+}
+
 func TestAppendDefaultMountOptions(t *testing.T) {
 	tests := []struct {
 		options  []string

pkg/blobfuse/controllerserver_test.go

@@ -0,0 +1,40 @@
+/*
+Copyright 2020 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package blobfuse
+
+import (
+	"context"
+	"testing"
+
+	"github.com/container-storage-interface/spec/lib/go/csi"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestControllerGetCapabilities(t *testing.T) {
+	d := NewFakeDriver()
+	controlCap := []*csi.ControllerServiceCapability{
+		{
+			Type: &csi.ControllerServiceCapability_Rpc{},
+		},
+	}
+	d.Cap = controlCap
+	req := csi.ControllerGetCapabilitiesRequest{}
+	resp, err := d.ControllerGetCapabilities(context.Background(), &req)
+	assert.NoError(t, err)
+	assert.NotNil(t, resp)
+	assert.Equal(t, resp.Capabilities, controlCap)
+}

pkg/blobfuse/identityserver_test.go

@@ -0,0 +1,70 @@
+/*
+Copyright 2020 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package blobfuse
+
+import (
+	"context"
+	"testing"
+
+	"github.com/container-storage-interface/spec/lib/go/csi"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestGetPluginInfo(t *testing.T) {
+	// Check with correct arguments
+	d := NewFakeDriver()
+	req := csi.GetPluginInfoRequest{}
+	resp, err := d.GetPluginInfo(context.Background(), &req)
+	assert.NoError(t, err)
+	assert.Equal(t, resp.Name, fakeDriverName)
+	assert.Equal(t, resp.GetVendorVersion(), vendorVersion)
+
+	//Check error when driver name is empty
+	d = NewFakeDriver()
+	d.Name = ""
+	req = csi.GetPluginInfoRequest{}
+	resp, err = d.GetPluginInfo(context.Background(), &req)
+	assert.Error(t, err)
+	assert.Nil(t, resp)
+
+	//Check error when version is empty
+	d = NewFakeDriver()
+	d.Version = ""
+	req = csi.GetPluginInfoRequest{}
+	resp, err = d.GetPluginInfo(context.Background(), &req)
+	assert.Error(t, err)
+	assert.Nil(t, resp)
+}
+
+func TestProbe(t *testing.T) {
+	d := NewFakeDriver()
+	req := csi.ProbeRequest{}
+	resp, err := d.Probe(context.Background(), &req)
+	assert.NoError(t, err)
+	assert.NotNil(t, resp)
+	assert.Equal(t, resp.XXX_sizecache, int32(0))
+	assert.Equal(t, resp.Ready.Value, true)
+}
+
+func TestGetPluginCapabilities(t *testing.T) {
+	d := NewFakeDriver()
+	req := csi.GetPluginCapabilitiesRequest{}
+	resp, err := d.GetPluginCapabilities(context.Background(), &req)
+	assert.NoError(t, err)
+	assert.NotNil(t, resp)
+	assert.Equal(t, resp.XXX_sizecache, int32(0))
+}

pkg/blobfuse/nodeserver.go

@@ -44,9 +44,6 @@ func (d *Driver) NodePublishVolume(ctx context.Context, req *csi.NodePublishVolu
 	if len(req.GetVolumeId()) == 0 {
 		return nil, status.Error(codes.InvalidArgument, "Volume ID missing in request")
 	}
-	if len(req.GetTargetPath()) == 0 {
-		return nil, status.Error(codes.InvalidArgument, "Target path missing in request")
-	}
 
 	source := req.GetStagingTargetPath()
 	if len(source) == 0 {