add GDrive provider support (#118)

* GDrive provider support
* More reliable basedir ownership
* Fix mimetype

vendor/cloud.google.com/go/firestore/writebatch_test.go

@@ -0,0 +1,119 @@
+// Copyright 2017 Google LLC
+//
+// 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 firestore
+
+import (
+	"testing"
+
+	pb "google.golang.org/genproto/googleapis/firestore/v1beta1"
+
+	"golang.org/x/net/context"
+)
+
+func TestWriteBatch(t *testing.T) {
+	type update struct{ A int }
+
+	c, srv := newMock(t)
+	docPrefix := c.Collection("C").Path + "/"
+	srv.addRPC(
+		&pb.CommitRequest{
+			Database: c.path(),
+			Writes: []*pb.Write{
+				{ // Create
+					Operation: &pb.Write_Update{
+						Update: &pb.Document{
+							Name:   docPrefix + "a",
+							Fields: testFields,
+						},
+					},
+					CurrentDocument: &pb.Precondition{
+						ConditionType: &pb.Precondition_Exists{false},
+					},
+				},
+				{ // Set
+					Operation: &pb.Write_Update{
+						Update: &pb.Document{
+							Name:   docPrefix + "b",
+							Fields: testFields,
+						},
+					},
+				},
+				{ // Delete
+					Operation: &pb.Write_Delete{
+						Delete: docPrefix + "c",
+					},
+				},
+				{ // Update
+					Operation: &pb.Write_Update{
+						Update: &pb.Document{
+							Name:   docPrefix + "f",
+							Fields: map[string]*pb.Value{"*": intval(3)},
+						},
+					},
+					UpdateMask: &pb.DocumentMask{FieldPaths: []string{"`*`"}},
+					CurrentDocument: &pb.Precondition{
+						ConditionType: &pb.Precondition_Exists{true},
+					},
+				},
+			},
+		},
+		&pb.CommitResponse{
+			WriteResults: []*pb.WriteResult{
+				{UpdateTime: aTimestamp},
+				{UpdateTime: aTimestamp2},
+				{UpdateTime: aTimestamp3},
+			},
+		},
+	)
+	gotWRs, err := c.Batch().
+		Create(c.Doc("C/a"), testData).
+		Set(c.Doc("C/b"), testData).
+		Delete(c.Doc("C/c")).
+		Update(c.Doc("C/f"), []Update{{FieldPath: []string{"*"}, Value: 3}}).
+		Commit(context.Background())
+	if err != nil {
+		t.Fatal(err)
+	}
+	wantWRs := []*WriteResult{{aTime}, {aTime2}, {aTime3}}
+	if !testEqual(gotWRs, wantWRs) {
+		t.Errorf("got  %+v\nwant %+v", gotWRs, wantWRs)
+	}
+}
+
+func TestWriteBatchErrors(t *testing.T) {
+	ctx := context.Background()
+	c, _ := newMock(t)
+	for _, test := range []struct {
+		desc  string
+		batch *WriteBatch
+	}{
+		{
+			"empty batch",
+			c.Batch(),
+		},
+		{
+			"bad doc reference",
+			c.Batch().Create(c.Doc("a"), testData),
+		},
+		{
+			"bad data",
+			c.Batch().Create(c.Doc("a/b"), 3),
+		},
+	} {
+		if _, err := test.batch.Commit(ctx); err == nil {
+			t.Errorf("%s: got nil, want error", test.desc)
+		}
+	}
+}