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backend/internal/translator/codex/gemini/noop_optimization_test.go

@@ -0,0 +1,41 @@
+package gemini
+
+import (
+	"testing"
+
+	"github.com/tidwall/gjson"
+)
+
+func TestCleanGeminiCodexToolParametersPreservesCanonicalSchema(t *testing.T) {
+	input := []byte(`{"type":"object","properties":{"value":{"type":"string"}},"additionalProperties":false}`)
+
+	output := cleanGeminiCodexToolParameters(gjson.ParseBytes(input))
+
+	if string(output) != string(input) {
+		t.Fatalf("canonical schema changed:\n got: %s\nwant: %s", output, input)
+	}
+}
+
+func TestSetCodexToolChoiceFromGeminiToolConfigReusesAutoChoice(t *testing.T) {
+	input := []byte(`{"tool_choice":"auto","input":[]}`)
+	config := gjson.Parse(`{"mode":"AUTO"}`)
+
+	output := setCodexToolChoiceFromGeminiToolConfig(input, config)
+
+	if &output[0] != &input[0] {
+		t.Fatal("AUTO tool choice caused a payload copy")
+	}
+}
+
+func TestCleanGeminiCodexToolParametersNormalizesSchema(t *testing.T) {
+	input := []byte(`{"type":"object","$schema":"draft","additionalProperties":true}`)
+
+	output := cleanGeminiCodexToolParameters(gjson.ParseBytes(input))
+
+	if gjson.GetBytes(output, "$schema").Exists() {
+		t.Fatal("$schema should be removed")
+	}
+	if additionalProperties := gjson.GetBytes(output, "additionalProperties"); additionalProperties.Type != gjson.False {
+		t.Fatalf("additionalProperties = %s, want false", additionalProperties.Raw)
+	}
+}