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backend/internal/util/gjson_test.go

@@ -0,0 +1,45 @@
+package util
+
+import (
+	"testing"
+	"unsafe"
+)
+
+func TestGetGJSONBytesNoCopy(t *testing.T) {
+	input := []byte(`{"request":{"contents":[{"role":"user"}]}}`)
+	contents := GetGJSONBytesNoCopy(input, "request.contents")
+	if !contents.IsArray() || contents.Get("0.role").String() != "user" {
+		t.Fatalf("request.contents = %s, want user content array", contents.Raw)
+	}
+}
+
+func TestGetGJSONBytesNoCopyEmptyInput(t *testing.T) {
+	if result := GetGJSONBytesNoCopy(nil, "contents"); result.Exists() {
+		t.Fatalf("empty input result = %s, want missing", result.Raw)
+	}
+}
+
+func TestParseGJSONBytesNoCopy(t *testing.T) {
+	input := []byte(`{"request":{"contents":[{"role":"user"}]}}`)
+	root := ParseGJSONBytesNoCopy(input)
+	if !root.IsObject() || root.Get("request.contents.0.role").String() != "user" {
+		t.Fatalf("parsed root = %s, want user content array", root.Raw)
+	}
+}
+
+func TestParseGJSONBytesNoCopyReferencesInput(t *testing.T) {
+	input := []byte(`{"contents":[{"role":"user"}]}`)
+	root := ParseGJSONBytesNoCopy(input)
+	if len(root.Raw) != len(input) {
+		t.Fatalf("raw length = %d, want %d", len(root.Raw), len(input))
+	}
+	if unsafe.StringData(root.Raw) != unsafe.SliceData(input) {
+		t.Fatal("parsed result copied the input instead of referencing it")
+	}
+}
+
+func TestParseGJSONBytesNoCopyEmptyInput(t *testing.T) {
+	if result := ParseGJSONBytesNoCopy(nil); result.Exists() {
+		t.Fatalf("empty input result = %s, want missing", result.Raw)
+	}
+}