Update contract goldens for tool-call null content

SantiagoDePolonia · SantiagoDePolonia · commit 6dd5f85979d7 · 2026-03-06T19:40:41.000+01:00
diff --git a/tests/contract/testdata/golden/gemini/chat_with_tools.golden.json b/tests/contract/testdata/golden/gemini/chat_with_tools.golden.json
@@ -4,7 +4,7 @@
       "finish_reason": "tool_calls",
       "index": 0,
       "message": {
-        "content": "",
+        "content": null,
         "role": "assistant",
         "tool_calls": [
           {
diff --git a/tests/contract/testdata/golden/groq/chat_with_tools.golden.json b/tests/contract/testdata/golden/groq/chat_with_tools.golden.json
@@ -4,7 +4,7 @@
       "finish_reason": "tool_calls",
       "index": 0,
       "message": {
-        "content": "",
+        "content": null,
         "role": "assistant",
         "tool_calls": [
           {
diff --git a/tests/contract/testdata/golden/openai/chat_with_tools.golden.json b/tests/contract/testdata/golden/openai/chat_with_tools.golden.json
@@ -4,7 +4,7 @@
       "finish_reason": "tool_calls",
       "index": 0,
       "message": {
-        "content": "",
+        "content": null,
         "role": "assistant",
         "tool_calls": [
           {
