postgrespro · dmitry-lipetsk · Mar 3, 2025 · Feb 26, 2025 · Feb 26, 2025 · Feb 27, 2025
diff --git a/testgres/operations/local_ops.py b/testgres/operations/local_ops.py
@@ -135,6 +135,7 @@ def exec_command(self, cmd, wait_exit=False, verbose=False, expect_error=False,
             RaiseError.UtilityExitedWithNonZeroCode(
                 cmd=cmd,
                 exit_code=process.returncode,
+                msg_arg=error or output,
                 error=error,
                 out=output)
 

diff --git a/testgres/operations/raise_error.py b/testgres/operations/raise_error.py
@@ -1,13 +1,22 @@
 from ..exceptions import ExecUtilException
+from .helpers import Helpers
 
 
 class RaiseError:
     @staticmethod
-    def UtilityExitedWithNonZeroCode(cmd, exit_code, error, out):
+    def UtilityExitedWithNonZeroCode(cmd, exit_code, msg_arg, error, out):
         assert type(exit_code) == int  # noqa: E721
 
+        msg_arg_s = __class__._TranslateDataIntoString(msg_arg)
+        assert type(msg_arg_s) == str  # noqa: E721
+
+        msg_arg_s = msg_arg_s.strip()
+        if msg_arg_s == "":
+            msg_arg_s = "#no_error_message"
+
+        message = "Utility exited with non-zero code (" + str(exit_code) + "). Error: `" + msg_arg_s + "`"
         raise ExecUtilException(
-            message="Utility exited with non-zero code.",
+            message=message,
             command=cmd,
             exit_code=exit_code,
             out=out,
@@ -25,3 +34,24 @@ def CommandExecutionError(cmd, exit_code, message, error, out):
             exit_code=exit_code,
             out=out,
             error=error)
+
+    @staticmethod
+    def _TranslateDataIntoString(data):
+        if data is None:
+            return ""
+
+        if type(data) == bytes:  # noqa: E721
+            return __class__._TranslateDataIntoString__FromBinary(data)
+
+        return str(data)
+
+    @staticmethod
+    def _TranslateDataIntoString__FromBinary(data):
+        assert type(data) == bytes  # noqa: E721
+
+        try:
+            return data.decode(Helpers.GetDefaultEncoding())
+        except UnicodeDecodeError:
+            pass
+
+        return "#cannot_decode_text"
diff --git a/testgres/operations/remote_ops.py b/testgres/operations/remote_ops.py
@@ -126,6 +126,7 @@ def exec_command(self, cmd, wait_exit=False, verbose=False, expect_error=False,
             RaiseError.UtilityExitedWithNonZeroCode(
                 cmd=cmd,
                 exit_code=process.returncode,
+                msg_arg=error,
                 error=error,
                 out=output)
 
@@ -180,7 +181,7 @@ def is_executable(self, file):
             exit_status,
             file)
 
-        RaiseError.UtilityExitedWithNonZeroCode(
+        RaiseError.CommandExecutionError(
             cmd=command,
             exit_code=exit_status,
             msg_arg=errMsg,

diff --git a/tests/test_local.py b/tests/test_local.py
@@ -40,7 +40,7 @@ def test_exec_command_failure(self):
             try:
                 self.operations.exec_command(cmd, wait_exit=True, shell=True)
             except ExecUtilException as e:
-                assert e.message == "Utility exited with non-zero code."
+                assert e.message == "Utility exited with non-zero code (127). Error: `/bin/sh: 1: nonexistent_command: not found`"
                 assert type(e.error) == bytes  # noqa: E721
                 assert e.error.strip() == b"/bin/sh: 1: nonexistent_command: not found"
                 break

diff --git a/tests/test_remote.py b/tests/test_remote.py
@@ -38,7 +38,7 @@ def test_exec_command_failure(self):
             try:
                 self.operations.exec_command(cmd, verbose=True, wait_exit=True)
             except ExecUtilException as e:
-                assert e.message == "Utility exited with non-zero code."
+                assert e.message == "Utility exited with non-zero code (127). Error: `bash: line 1: nonexistent_command: command not found`"
                 assert type(e.error) == bytes  # noqa: E721
                 assert e.error.strip() == b"bash: line 1: nonexistent_command: command not found"
                 break
@@ -109,7 +109,7 @@ def test_makedirs_and_rmdirs_failure(self):
             try:
                 self.operations.rmdirs(path, verbose=True)
             except ExecUtilException as e:
-                assert e.message == "Utility exited with non-zero code."
+                assert e.message == "Utility exited with non-zero code (1). Error: `rm: cannot remove '/root/test_dir': Permission denied`"
                 assert type(e.error) == bytes  # noqa: E721
                 assert e.error.strip() == b"rm: cannot remove '/root/test_dir': Permission denied"
                 break