Add batch upsert tests

clause/set.go

@@ -50,3 +50,11 @@ func Assignments(values map[string]interface{}) Set {
 	}
 	return assignments
 }
+
+func AssignmentColumns(values []string) Set {
+	assignments := make([]Assignment, len(values))
+	for idx, value := range values {
+		assignments[idx] = Assignment{Column: Column{Name: value}, Value: Column{Table: "excluded", Name: value}}
+	}
+	return assignments
+}

tests/go.mod

@@ -4,10 +4,10 @@ go 1.14
 
 require (
 	github.com/jinzhu/now v1.1.1
-	gorm.io/driver/mysql v0.0.0-20200602015408-0407d0c21cf0
+	gorm.io/driver/mysql v0.0.0-20200609004954-b8310c61c3f2
 	gorm.io/driver/postgres v0.0.0-20200602015520-15fcc29eb286
 	gorm.io/driver/sqlite v1.0.0
-	gorm.io/driver/sqlserver v0.0.0-20200605135528-04ae0f7a15bf
+	gorm.io/driver/sqlserver v0.0.0-20200609005334-d550a0be1cfb
 	gorm.io/gorm v0.0.0-00010101000000-000000000000
 )
 

tests/upsert_test.go

@@ -65,6 +65,29 @@ func TestUpsertSlice(t *testing.T) {
 	} else if len(langs3) != 3 {
 		t.Errorf("should only find only 3 languages, but got %+v", langs3)
 	}
+
+	for idx, lang := range langs {
+		lang.Name = lang.Name + "_new"
+		langs[idx] = lang
+	}
+
+	if err := DB.Clauses(clause.OnConflict{
+		Columns:   []clause.Column{{Name: "code"}},
+		DoUpdates: clause.AssignmentColumns([]string{"name"}),
+	}).Create(&langs).Error; err != nil {
+		t.Fatalf("failed to upsert, got %v", err)
+	}
+
+	for _, lang := range langs {
+		var results []Language
+		if err := DB.Find(&results, "code = ?", lang.Code).Error; err != nil {
+			t.Errorf("no error should happen when find languages with code, but got %v", err)
+		} else if len(results) != 1 {
+			t.Errorf("should only find only 1 languages, but got %+v", langs)
+		} else if results[0].Name != lang.Name {
+			t.Errorf("should update name on conflict, but got name %+v", results[0].Name)
+		}
+	}
 }
 
 func TestFindOrInitialize(t *testing.T) {