json_formatter: add tests for field clashes and newline
diff --git a/json_formatter_test.go b/json_formatter_test.go
index de19bc1..1d70873 100644
--- a/json_formatter_test.go
+++ b/json_formatter_test.go
@@ -44,3 +44,77 @@
t.Fatal("Error field not set")
}
}
+
+func TestFieldClashWithTime(t *testing.T) {
+ formatter := &JSONFormatter{}
+
+ b, err := formatter.Format(WithField("time", "right now!"))
+ if err != nil {
+ t.Fatal("Unable to format entry: ", err)
+ }
+
+ entry := make(map[string]interface{})
+ err = json.Unmarshal(b, &entry)
+ if err != nil {
+ t.Fatal("Unable to unmarshal formatted entry: ", err)
+ }
+
+ if entry["fields.time"] != "right now!" {
+ t.Fatal("fields.time not set to original time field")
+ }
+
+ if entry["time"] != "0001-01-01T00:00:00Z" {
+ t.Fatal("time field not set to current time, was: ", entry["time"])
+ }
+}
+
+func TestFieldClashWithMsg(t *testing.T) {
+ formatter := &JSONFormatter{}
+
+ b, err := formatter.Format(WithField("msg", "something"))
+ if err != nil {
+ t.Fatal("Unable to format entry: ", err)
+ }
+
+ entry := make(map[string]interface{})
+ err = json.Unmarshal(b, &entry)
+ if err != nil {
+ t.Fatal("Unable to unmarshal formatted entry: ", err)
+ }
+
+ if entry["fields.msg"] != "something" {
+ t.Fatal("fields.msg not set to original msg field")
+ }
+}
+
+func TestFieldClashWithLevel(t *testing.T) {
+ formatter := &JSONFormatter{}
+
+ b, err := formatter.Format(WithField("level", "something"))
+ if err != nil {
+ t.Fatal("Unable to format entry: ", err)
+ }
+
+ entry := make(map[string]interface{})
+ err = json.Unmarshal(b, &entry)
+ if err != nil {
+ t.Fatal("Unable to unmarshal formatted entry: ", err)
+ }
+
+ if entry["fields.level"] != "something" {
+ t.Fatal("fields.level not set to original level field")
+ }
+}
+
+func TestJSONEntryEndsWithNewline(t *testing.T) {
+ formatter := &JSONFormatter{}
+
+ b, err := formatter.Format(WithField("level", "something"))
+ if err != nil {
+ t.Fatal("Unable to format entry: ", err)
+ }
+
+ if b[len(b)-1] != '\n' {
+ t.Fatal("Expected JSON log entry to end with a newline")
+ }
+}
