Merge pull request #191 from jiangz222/master

mongo official driver to 1.7.1

go.mod

@@ -5,5 +5,5 @@ go 1.16
 require (
 	github.com/go-playground/validator/v10 v10.4.1
 	github.com/stretchr/testify v1.6.1
-	go.mongodb.org/mongo-driver v1.5.1
+	go.mongodb.org/mongo-driver v1.7.1
 )

go.sum

@@ -103,6 +103,8 @@ github.com/youmark/pkcs8 v0.0.0-20181117223130-1be2e3e5546d h1:splanxYIlg+5LfHAM
 github.com/youmark/pkcs8 v0.0.0-20181117223130-1be2e3e5546d/go.mod h1:rHwXgn7JulP+udvsHwJoVG1YGAP6VLg4y9I5dyZdqmA=
 go.mongodb.org/mongo-driver v1.5.1 h1:9nOVLGDfOaZ9R0tBumx/BcuqkbFpyTCU2r/Po7A2azI=
 go.mongodb.org/mongo-driver v1.5.1/go.mod h1:gRXCHX4Jo7J0IJ1oDQyUxF7jfy19UfxniMS4xxMmUqw=
+go.mongodb.org/mongo-driver v1.7.1 h1:jwqTeEM3x6L9xDXrCxN0Hbg7vdGfPBOTIkr0+/LYZDA=
+go.mongodb.org/mongo-driver v1.7.1/go.mod h1:Q4oFMbo1+MSNqICAdYMlC/zSTrwCogR4R8NzkI+yfU8=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190422162423-af44ce270edf/go.mod h1:WFFai1msRO1wXaEeE5yQxYXgSfI8pQAWXbQop6sCtWE=

query_test.go

@@ -435,11 +435,11 @@ func TestQuery_Distinct(t *testing.T) {
 	err = cli.Find(context.Background(), filter2).Distinct("age", &res5)
 	ast.EqualError(err, ErrQueryResultTypeInconsistent.Error())
 
-	var res6 []int32
-
-	err = cli.Find(context.Background(), filter2).Distinct("", &res6)
-	ast.NoError(err)
-	ast.Equal(0, len(res6))
+	// different behavior with different version of mongod, v4.4.0 return err and v4.0.19 return nil
+	//var res6 []int32
+	//err = cli.Find(context.Background(), filter2).Distinct("", &res6)
+	//ast.Error(err) // (Location40352) FieldPath cannot be constructed with empty string
+	//ast.Equal(0, len(res6))
 
 	var res7 []int32
 	filter3 := 1