Update unit tests

* Test system PYTHONPATH import in test_pathmanager instead of test_mainwindow
* Move restore_user_env fixture from app/tests/conftest.py to utils/tests/conftest.py
* Ensure that the user environment script runs on posix while testing

spyder/app/tests/conftest.py

@@ -27,15 +27,13 @@
 from spyder.api.plugin_registration.registry import PLUGIN_REGISTRY
 from spyder.api.plugins import Plugins
 from spyder.app import start
-from spyder.config.base import get_home_dir, running_in_ci
+from spyder.config.base import get_home_dir
 from spyder.config.manager import CONF
 from spyder.plugins.ipythonconsole.utils.kernelspec import SpyderKernelSpec
 from spyder.plugins.projects.api import EmptyProject
 from spyder.plugins.run.api import RunActions, StoredRunConfigurationExecutor
 from spyder.plugins.toolbar.api import ApplicationToolbars
 from spyder.utils import encoding
-from spyder.utils.environ import (get_user_env, set_user_env,
-                                  amend_user_shell_init)
 
 # =============================================================================
 # ---- Constants
@@ -624,20 +622,3 @@ def threads_condition():
                     CONF.reset_manager()
                     PLUGIN_REGISTRY.reset()
                     raise
-
-
-@pytest.fixture
-def restore_user_env():
-    """Set user environment variables and restore upon test exit"""
-    if not running_in_ci():
-        pytest.skip("Skipped because not in CI.")
-
-    if os.name == "nt":
-        orig_env = get_user_env()
-
-    yield
-
-    if os.name == "nt":
-        set_user_env(orig_env)
-    else:
-        amend_user_shell_init(restore=True)

spyder/app/tests/test_mainwindow.py

@@ -85,7 +85,6 @@
     RunExecutionParameters, ExtendedRunExecutionParameters, WorkingDirOpts,
     WorkingDirSource, RunContext)
 from spyder.py3compat import qbytearray_to_str, to_text_string
-from spyder.utils.environ import set_user_env
 from spyder.utils.conda import get_list_conda_envs
 from spyder.utils.misc import remove_backslashes, rename_file
 from spyder.utils.clipboard_helper import CLIPBOARD_HELPER
@@ -6384,8 +6383,7 @@ def test_switch_to_plugin(main_window, qtbot):
 
 
 @flaky(max_runs=5)
-def test_PYTHONPATH_in_consoles(main_window, qtbot, tmp_path,
-                                restore_user_env):
+def test_PYTHONPATH_in_consoles(main_window, qtbot, tmp_path):
     """
     Test that PYTHONPATH is passed to IPython consoles under different
     scenarios.
@@ -6399,37 +6397,24 @@ def test_PYTHONPATH_in_consoles(main_window, qtbot, tmp_path,
     # Main variables
     ppm = main_window.get_plugin(Plugins.PythonpathManager)
 
-    # Add a directory to PYTHONPATH
-    sys_dir = tmp_path / 'sys_dir'
-    sys_dir.mkdir()
-    set_user_env({"PYTHONPATH": str(sys_dir)})
-
     # Add a directory to the current list of paths to simulate a path added by
     # users
     user_dir = tmp_path / 'user_dir'
     user_dir.mkdir()
     user_paths = OrderedDict({str(user_dir): True})
     if os.name != "nt":
         assert ppm.get_container()._spyder_pythonpath == []
-    ppm.get_container()._save_paths(user_paths=user_paths)
-
-    # Open Pythonpath dialog to detect sys_dir
-    ppm.show_path_manager()
-    qtbot.wait(500)
-
-    # Check we're showing two headers
-    assert len(ppm.path_manager_dialog.headers) == 2
 
     # Check the PPM emits the right signal after closing the dialog
     with qtbot.waitSignal(ppm.sig_pythonpath_changed, timeout=1000):
-        ppm.path_manager_dialog.close()
+        ppm.get_container()._save_paths(user_paths=user_paths)
 
     # Check directories were added to sys.path in the right order
     with qtbot.waitSignal(shell.executed, timeout=2000):
         shell.execute("import sys; sys_path = sys.path")
 
     sys_path = shell.get_value("sys_path")
-    assert sys_path[-2:] == [str(user_dir), str(sys_dir)]
+    assert sys_path[-1:] == [str(user_dir)]
 
     # Create new console
     ipyconsole.create_new_client()
@@ -6442,7 +6427,7 @@ def test_PYTHONPATH_in_consoles(main_window, qtbot, tmp_path,
         shell1.execute("import sys; sys_path = sys.path")
 
     sys_path = shell1.get_value("sys_path")
-    assert sys_path[-2:] == [str(user_dir), str(sys_dir)]
+    assert sys_path[-1:] == [str(user_dir)]
 
     # Check that disabling a path from the PPM removes it from sys.path in all
     # consoles

spyder/plugins/pythonpath/widgets/tests/test_pathmanager.py

@@ -18,7 +18,9 @@
 from qtpy.QtWidgets import QMessageBox, QPushButton
 
 # Local imports
+from spyder.utils.environ import get_user_env, set_user_env
 from spyder.utils.programs import is_module_installed
+from spyder.utils.tests.conftest import restore_user_env
 from spyder.plugins.pythonpath.utils import check_path
 from spyder.plugins.pythonpath.widgets import pathmanager as pathmanager_mod
 
@@ -41,19 +43,42 @@ def pathmanager(qtbot, request):
 
 
 @pytest.mark.parametrize(
-    'pathmanager',
-    [(sys.path[:-10], sys.path[-10:], ())],
-    indirect=True
+    'pathmanager', [(sys.path[:-10], sys.path[-10:], ())], indirect=True
 )
-def test_pathmanager(pathmanager, qtbot):
+def test_pathmanager(qtbot, pathmanager):
     """Run PathManager test"""
     pathmanager.show()
     assert pathmanager
 
 
-@pytest.mark.parametrize('pathmanager',
-                         [(sys.path[:-10], sys.path[-10:], ())],
-                         indirect=True)
+@pytest.mark.parametrize('pathmanager', [((), (), ())], indirect=True)
+def test_import_PYTHONPATH(qtbot, pathmanager, tmp_path, restore_user_env):
+    """
+    Test that PYTHONPATH is imported.
+    """
+
+    # Add a directory to PYTHONPATH environment variable
+    sys_dir = tmp_path / 'sys_dir'
+    sys_dir.mkdir()
+    set_user_env({"PYTHONPATH": str(sys_dir)})
+
+    # Open Pythonpath dialog
+    pathmanager.show()
+    qtbot.wait(500)
+
+    assert len(pathmanager.headers) == 0
+    assert pathmanager.get_system_paths() == OrderedDict()
+
+    # Import PYTHONPATH from environment
+    pathmanager.import_paths()
+    assert len(pathmanager.headers) == 1
+
+    assert pathmanager.get_system_paths() == OrderedDict({str(sys_dir): True})
+
+
+@pytest.mark.parametrize(
+    'pathmanager', [(sys.path[:-10], sys.path[-10:], ())], indirect=True
+)
 def test_check_uncheck_path(pathmanager):
     """
     Test that checking and unchecking a path in the PathManager correctly
@@ -66,20 +91,16 @@ def test_check_uncheck_path(pathmanager):
             assert item.checkState() == Qt.Checked
 
 
-@pytest.mark.skipif(os.name != 'nt' or not is_module_installed('win32con'),
-                    reason=("This feature is not applicable for Unix "
-                            "systems and pywin32 is needed"))
-@pytest.mark.parametrize('pathmanager',
-                         [(['p1', 'p2', 'p3'], ['p4', 'p5', 'p6'], [])],
-                         indirect=True)
-def test_export_to_PYTHONPATH(pathmanager, mocker):
-    # Import here to prevent an ImportError when testing on unix systems
-    from spyder.utils.environ import (get_user_env, set_user_env,
-                                      listdict2envdict)
-
-    # Store PYTHONPATH original state
-    env = get_user_env()
-    original_pathlist = env.get('PYTHONPATH', [])
+@pytest.mark.skipif(
+    os.name != 'nt' or not is_module_installed('win32con'),
+    reason=("This feature is not applicable for Unix "
+            "systems and pywin32 is needed")
+)
+@pytest.mark.parametrize(
+    'pathmanager', [(['p1', 'p2', 'p3'], ['p4', 'p5', 'p6'], [])],
+    indirect=True
+)
+def test_export_to_PYTHONPATH(pathmanager, mocker, restore_user_env):
 
     # Mock the dialog window and answer "Yes" to clear contents of PYTHONPATH
     # before adding Spyder's path list
@@ -113,14 +134,10 @@ def test_export_to_PYTHONPATH(pathmanager, mocker):
     env = get_user_env()
     assert env['PYTHONPATH'] == expected_pathlist
 
-    # Restore PYTHONPATH to its original state
-    env['PYTHONPATH'] = original_pathlist
-    set_user_env(listdict2envdict(env))
-
 
-@pytest.mark.parametrize('pathmanager',
-                         [(sys.path[:-10], sys.path[-10:], ())],
-                         indirect=True)
+@pytest.mark.parametrize(
+    'pathmanager', [(sys.path[:-10], sys.path[-10:], ())], indirect=True
+)
 def test_invalid_directories(qtbot, pathmanager):
     """Check [site/dist]-packages are invalid paths."""
     if os.name == 'nt':
@@ -143,9 +160,9 @@ def interact_message_box():
         pathmanager.add_path(path)
 
 
-@pytest.mark.parametrize('pathmanager',
-                         [(('/spam', '/bar'), ('/foo', ), ())],
-                         indirect=True)
+@pytest.mark.parametrize(
+    'pathmanager', [(('/spam', '/bar'), ('/foo', ), ())], indirect=True
+)
 def test_remove_item_and_reply_no(qtbot, pathmanager):
     """Check that the item is not removed after answering 'No'."""
     pathmanager.show()
@@ -169,9 +186,9 @@ def interact_message_box():
     assert pathmanager.count() == count
 
 
-@pytest.mark.parametrize('pathmanager',
-                         [(('/spam', '/bar'), ('/foo', ), ())],
-                         indirect=True)
+@pytest.mark.parametrize(
+    'pathmanager', [(('/spam', '/bar'), ('/foo', ), ())], indirect=True
+)
 def test_remove_item_and_reply_yes(qtbot, pathmanager):
     """Check that the item is indeed removed after answering 'Yes'."""
     pathmanager.show()
@@ -196,9 +213,7 @@ def interact_message_box():
     assert pathmanager.count() == (count - 1)
 
 
-@pytest.mark.parametrize('pathmanager',
-                         [((), (), ())],
-                         indirect=True)
+@pytest.mark.parametrize('pathmanager', [((), (), ())], indirect=True)
 def test_add_repeated_item(qtbot, pathmanager, tmpdir):
     """
     Check behavior when an unchecked item that is already on the list is added.
@@ -236,9 +251,9 @@ def interact_message_box():
     assert all(pathmanager.get_user_paths().values())
 
 
-@pytest.mark.parametrize('pathmanager',
-                         [(('/spam', '/bar'), ('/foo', ), ())],
-                         indirect=True)
+@pytest.mark.parametrize(
+    'pathmanager', [(('/spam', '/bar'), ('/foo', ), ())], indirect=True
+)
 def test_buttons_state(qtbot, pathmanager, tmpdir):
     """Check buttons are enabled/disabled based on items and position."""
     pathmanager.show()

spyder/utils/environ.py

@@ -27,7 +27,9 @@
 from qtpy.QtWidgets import QMessageBox
 
 # Local imports
-from spyder.config.base import _, running_in_ci, get_conf_path
+from spyder.config.base import (
+    _, running_in_ci, get_conf_path, running_under_pytest
+)
 from spyder.widgets.collectionseditor import CollectionsEditor
 from spyder.utils.icon_manager import ima
 from spyder.utils.programs import run_shell_command
@@ -111,7 +113,7 @@ def get_user_environment_variables():
         # We only need to do this if Spyder was **not** launched from a
         # terminal. Otherwise, it'll inherit the env vars present in it.
         # Fixes spyder-ide/spyder#22415
-        if not launched_from_terminal:
+        if not launched_from_terminal or running_under_pytest():
             try:
                 user_env_script = _get_user_env_script()
                 proc = run_shell_command(user_env_script, env={}, text=True)

spyder/utils/tests/conftest.py

@@ -0,0 +1,31 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+# Standard library imports
+import os
+
+# Third-party imports
+import pytest
+
+# Local imports
+from spyder.config.base import running_in_ci
+from spyder.utils.environ import (
+    get_user_env, set_user_env, amend_user_shell_init
+)
+
+
+@pytest.fixture
+def restore_user_env():
+    """Set user environment variables and restore upon test exit"""
+    if not running_in_ci():
+        pytest.skip("Skipped because not in CI.")
+
+    if os.name == "nt":
+        orig_env = get_user_env()
+
+    yield
+
+    if os.name == "nt":
+        set_user_env(orig_env)
+    else:
+        amend_user_shell_init(restore=True)

spyder/utils/tests/test_environ.py

@@ -18,15 +18,15 @@
 from qtpy.QtCore import QTimer
 
 # Local imports
-from spyder.utils.environ import (get_user_environment_variables,
-                                  UserEnvDialog, amend_user_shell_init)
+from spyder.utils.environ import (
+    get_user_environment_variables, UserEnvDialog, amend_user_shell_init
+)
 from spyder.utils.test import close_message_box
-from spyder.app.tests.conftest import restore_user_env
 
 
 @pytest.fixture
 def environ_dialog(qtbot):
-    "Setup the Environment variables Dialog."
+    """Setup the Environment variables Dialog."""
     QTimer.singleShot(1000, lambda: close_message_box(qtbot))
     dialog = UserEnvDialog()
     qtbot.addWidget(dialog)
@@ -44,8 +44,10 @@ def test_get_user_environment_variables():
 
 @pytest.mark.skipif(os.name == "nt", reason="Does not apply to Windows")
 def test_get_user_env_newline(restore_user_env):
-    # Test variable value with newline characters.
-    # Regression test for spyder-ide#20097
+    """
+    Test variable value with newline characters.
+    Regression test for spyder-ide#20097.
+    """
     text = "myfunc() {  echo hello;\n echo world\n}\nexport -f myfunc"
     amend_user_shell_init(text)
     user_env = get_user_environment_variables()