tests: popups: Add test for content copied from About popup.

Author: neiljp

tests/ui_tools/test_popups.py

@@ -189,6 +189,12 @@ def mock_external_classes(self, mocker: MockerFixture) -> None:
  )
  server_version, server_feature_level = MINIMUM_SUPPORTED_SERVER_VERSION
 
+ # FIXME: Since we don't test on WSL explicitly, for now
+ # treat PLATFORM as WSL in order for it to be supported
+ mocker.patch(MODULE + ".PLATFORM", "WSL")
+
+ mocker.patch(MODULE + ".detected_python_in_full", lambda: "[Python version]")
+
  self.about_view = AboutView(
  self.controller,
  "About",
@@ -273,6 +279,26 @@ def test_categories(self) -> None:
  "Copy information to clipboard [c]",
  ]
 
+ def test_copied_content(self) -> None:
+ expected_output = f"""#### Application
+Zulip Terminal: {ZT_VERSION}
+
+#### Server
+Version: {MINIMUM_SUPPORTED_SERVER_VERSION[0]}
+
+#### Application Configuration
+Theme: zt_dark
+Autohide: disabled
+Maximum footlinks: 3
+Color depth: 256
+Notifications: disabled
+Exit confirmation: disabled
+
+#### Detected Environment
+Platform: WSL
+Python: [Python version]"""
+ assert self.about_view.copy_info == expected_output
+
 
 class TestUserInfoView:
  @pytest.fixture(autouse=True)