1 files changed, 28 insertions, 0 deletions
diff --git a/workhorse/internal/lsif_transformer/parser/id_test.go b/workhorse/internal/lsif_transformer/parser/id_test.go
new file mode 100644
index 00000000000..c1c53928378
--- /dev/null
+++ b/workhorse/internal/lsif_transformer/parser/id_test.go
@@ -0,0 +1,28 @@
+package parser
+
+import (
+	"encoding/json"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+type jsonWithId struct {
+	Value Id `json:"value"`
+}
+
+func TestId(t *testing.T) {
+	var v jsonWithId
+	require.NoError(t, json.Unmarshal([]byte(`{ "value": 1230 }`), &v))
+	require.Equal(t, Id(1230), v.Value)
+
+	require.NoError(t, json.Unmarshal([]byte(`{ "value": "1230" }`), &v))
+	require.Equal(t, Id(1230), v.Value)
+
+	require.Error(t, json.Unmarshal([]byte(`{ "value": "1.5" }`), &v))
+	require.Error(t, json.Unmarshal([]byte(`{ "value": 1.5 }`), &v))
+	require.Error(t, json.Unmarshal([]byte(`{ "value": "-1" }`), &v))
+	require.Error(t, json.Unmarshal([]byte(`{ "value": -1 }`), &v))
+	require.Error(t, json.Unmarshal([]byte(`{ "value": 21000000 }`), &v))
+	require.Error(t, json.Unmarshal([]byte(`{ "value": "21000000" }`), &v))
+}