Devex: Modify tests to avoid additional files in core repo

tests/cmdline/commands/test_process.py

@@ -687,11 +687,12 @@ def test_dump_specified_path_message(self, run_cli_command, tmp_path, generate_c
         assert result.exception is None, result.output
         assert f'Using specified output path: `{test_path}`' in result.output
 
-    def test_dump_warning_message_displayed(self, run_cli_command, generate_calculation_node_add):
+    def test_dump_warning_message_displayed(self, run_cli_command, tmp_path, generate_calculation_node_add):
         """Test that warning message about new feature is displayed"""
+        test_path = tmp_path / 'specified-path'
         node = generate_calculation_node_add()
 
-        options = [str(node.pk)]
+        options = [str(node.pk), '--path', str(test_path)]
         result = run_cli_command(cmd_process.process_dump, options)
         assert result.exception is None, result.output
         assert 'This is a new feature which is still in its testing phase' in result.output

tests/orm/nodes/data/test_data.py

@@ -9,6 +9,8 @@
 """Tests for the :class:`aiida.orm.nodes.data.data:Data` class."""
 
 import os
+import tempfile
+from contextlib import contextmanager
 
 import numpy
 import pytest
@@ -176,19 +178,29 @@ def test_constructor():
     assert node.source == source
 
 
-def test_data_exporters(data_plugin, generate_class_instance):
-    """Verify that the return value of the export methods of all `Data` sub classes have the correct type.
+@contextmanager
+def temporary_directory():
+    """Context manager that changes to a temporary directory."""
+    original_cwd = os.getcwd()
+    with tempfile.TemporaryDirectory() as temp_dir:
+        try:
+            os.chdir(temp_dir)
+            yield temp_dir
+        finally:
+            os.chdir(original_cwd)
 
-    It should be a tuple where the first should be a byte string and the second a dictionary.
-    """
+
+def test_data_exporters(data_plugin, generate_class_instance):
+    """Verify that the return value of the export methods of all `Data` sub classes have the correct type."""
     export_formats = data_plugin.get_export_formats()
 
     if not export_formats:
         return
 
     instance = generate_class_instance(data_plugin)
 
-    for fileformat in export_formats:
-        content, dictionary = instance._exportcontent(fileformat)
-        assert isinstance(content, bytes)
-        assert isinstance(dictionary, dict)
+    with temporary_directory():
+        for fileformat in export_formats:
+            content, dictionary = instance._exportcontent(fileformat)
+            assert isinstance(content, bytes)
+            assert isinstance(dictionary, dict)