fix: appmap breaks python extension repl

.travis.yml

@@ -3,10 +3,6 @@ dist: jammy
 language: python
 python:
 - "3.12"
-- "3.11"
-- "3.10"
-- "3.9.14"
-- "3.8"
 
 # https://github.com/travis-ci/travis-ci/issues/1147#issuecomment-441393807
 if: type != push OR branch = master OR branch =~ /^v\d+\.\d+(\.\d+)?(-\S*)?$/

_appmap/test/test_env.py

@@ -1,3 +1,4 @@
+import os
 from _appmap.env import Env
 
 
@@ -11,3 +12,17 @@ def test_disable_temporarily():
     except RuntimeError:
         ...
     assert env.enables("requests")
+
+def test_determine_log_file(monkeypatch):
+    env = Env({"_APPMAP": "true"})
+
+    def mock_open(*args, **kwargs):
+        raise IOError("Testing exception")
+    monkeypatch.setattr("builtins.open", mock_open)
+
+    log_file = env.determine_log_file()
+    # It should be in a temp folder
+    assert log_file != "appmap.log"
+    user_home_dir = os.path.expanduser("~")
+    assert log_file != os.path.join(user_home_dir, "appmap.log")
+

ci/smoketest.sh

@@ -19,6 +19,41 @@ EOF
   fi
 }
 
+test_log_file_not_writable()
+{
+  touch appmap.log
+  chmod 400 appmap.log
+
+  cat <<EOF > test_log_file_not_writable.py
+import appmap
+from appmap import Recording
+
+with Recording():
+  print("Hello from appmap library client")
+EOF
+
+  python test_log_file_not_writable.py
+
+  # Check existence and permissions of 'appmap.log'
+  if [ -e appmap.log ]; then
+      echo "'appmap.log' exists."
+      if [ -w appmap.log ]; then
+          echo "'appmap.log' is writable."
+      else
+          echo "'appmap.log' is not writable."
+      fi
+  else
+      echo "'appmap.log' does not exist."
+  fi
+
+  if [[ $? -eq 0 ]]; then
+    echo 'Script executed successfully'
+  else
+    echo 'Script execution failed'
+    exit 1
+  fi
+}
+
 set -ex
 pip -q install -U pip pytest "flask>=2,<3" python-decouple
 pip -q install /dist/appmap-*-py3-none-any.whl
@@ -33,6 +68,8 @@ test_recording_when_appmap_not_true
 
 export APPMAP=true
 
+test_log_file_not_writable
+
 python -m appmap.command.appmap_agent_init |\
   python -c 'import json,sys; print(json.load(sys.stdin)["configuration"]["contents"])' > /tmp/appmap.yml
 cat /tmp/appmap.yml