test: add JSON serialization tests for some new non-native golang int…

…erfaces

interfaces_test.go

@@ -146,14 +146,49 @@ func TestEventMarshalJSON(t *testing.T) {
 	}}
 	event.StartTime = time.Unix(7, 0).UTC()
 	event.Timestamp = time.Unix(14, 0).UTC()
+	event.DebugMeta = &DebugMeta{
+		SdkInfo: &DebugMetaSdkInfo{
+			SdkName:           "test",
+			VersionMajor:      1,
+			VersionMinor:      2,
+			VersionPatchlevel: 3,
+		},
+		Images: []DebugMetaImage{
+			{
+				Type:      "macho",
+				DebugID:   "12345",
+				CodeFile:  "foo.dylib",
+				ImageAddr: "0xabcd0000",
+			},
+		},
+	}
+	event.Exception = []Exception{
+		{
+			Stacktrace: &Stacktrace{
+				Frames: []Frame{
+					{
+						Platform:        "native",
+						StackStart:      true,
+						Filename:        "foo.m",
+						Lineno:          35,
+						InstructionAddr: "0xabcdef01",
+					},
+				},
+			},
+		},
+	}
 
 	got, err := json.Marshal(event)
 	if err != nil {
 		t.Fatal(err)
 	}
 
 	// Non-transaction event should not have fields Spans and StartTime
-	want := `{"sdk":{},"user":{},"timestamp":"1970-01-01T00:00:14Z"}`
+	want := `{"sdk":{},"user":{},` +
+		`"exception":[{"stacktrace":{"frames":[{"filename":"foo.m","lineno":35,"instruction_addr":"0xabcdef01","platform":"native","stack_start":true}]}}],` +
+		`"debug_meta":{"sdk_info":{"sdk_name":"test","version_major":1,"version_minor":2,"version_patchlevel":3},` +
+		`"images":[{"type":"macho","image_addr":"0xabcd0000","debug_id":"12345","code_file":"foo.dylib"}]},` +
+		`"timestamp":"1970-01-01T00:00:14Z"}`
 
 	if diff := cmp.Diff(want, string(got)); diff != "" {
 		t.Errorf("Event mismatch (-want +got):\n%s", diff)