added tests

rascal2/widgets/project/models.py

@@ -479,7 +479,7 @@ def setData(self, index, value, role=QtCore.Qt.ItemDataRole.DisplayRole):
                     language = None
                     func_names = None
             self.func_names[value] = func_names
-            if func_names is not None:
+            if func_names:
                 self.classlist[row].function_name = func_names[0]
             if language is not None:
                 self.classlist[row].language = language
@@ -553,7 +553,7 @@ def setup_button():
                     )
                 )
 
-            editable = (language != Languages.Cpp) and (
+            editable = (language in [Languages.Matlab, Languages.Python]) and (
                 self.model.data(self.model.index(index, self.model.headers.index("filename") + 1)) != "Browse..."
             )
             button.setEnabled(editable)

tests/dialogs/test_custom_file_editor.py

@@ -0,0 +1,110 @@
+"""Tests for the custom file editor."""
+
+import logging
+import tempfile
+from pathlib import Path
+from unittest.mock import MagicMock, patch
+
+import pytest
+from PyQt6 import Qsci, QtWidgets
+from RATapi.utils.enums import Languages
+
+from rascal2.dialogs.custom_file_editor import CustomFileEditorDialog, edit_file, edit_file_matlab
+
+parent = QtWidgets.QMainWindow()
+
+
+@pytest.fixture
+def custom_file_dialog():
+    """Fixture for a custom file dialog."""
+
+    def _dialog(language, tmpdir):
+        file = Path(tmpdir, "test_file")
+        file.write_text("Test text for a test dialog!")
+        dlg = CustomFileEditorDialog(file, language, parent)
+
+        return dlg
+
+    return _dialog
+
+
+@patch("rascal2.dialogs.custom_file_editor.CustomFileEditorDialog.exec")
+def test_edit_file(exec_mock):
+    """Test that the dialog is executed when edit_file() is called on a valid file"""
+
+    with tempfile.TemporaryDirectory() as tmp:
+        file = Path(tmp, "testfile.py")
+        file.touch()
+        edit_file(file, Languages.Python, parent)
+
+        exec_mock.assert_called_once()
+
+
+@pytest.mark.parametrize("filepath", ["dir/", "not_there.m"])
+@patch("rascal2.dialogs.custom_file_editor.CustomFileEditorDialog")
+def test_edit_incorrect_file(dialog_mock, filepath, caplog):
+    """A logger error should be emitted if a directory or nonexistent file is given to the editor."""
+
+    with tempfile.TemporaryDirectory() as tmp:
+        file = Path(tmp, filepath)
+        edit_file(file, Languages.Python, parent)
+
+    errors = [record for record in caplog.get_records("call") if record.levelno == logging.ERROR]
+    assert len(errors) == 1
+    assert "Attempted to edit a custom file which does not exist!" in caplog.text
+
+
+def test_edit_file_matlab():
+    """Assert that a file is passed to the engine when the MATLAB editor is called."""
+    mock_engine = MagicMock()
+    mock_engine.edit = MagicMock()
+    mock_loader = MagicMock()
+    mock_loader.result = MagicMock(return_value=mock_engine)
+    with patch("rascal2.dialogs.custom_file_editor.start_matlab", return_value=mock_loader) as mock_start:
+        with tempfile.TemporaryDirectory() as tmp:
+            file = Path(tmp, "testfile.m")
+            file.touch()
+            edit_file_matlab(file)
+
+        mock_start.assert_called_once()
+        mock_loader.result.assert_called_once()
+        mock_engine.edit.assert_called_once_with(str(file))
+
+
+def test_edit_no_matlab_engine(caplog):
+    """A logging error should be produced if a user tries to edit a file in MATLAB with no engine available."""
+    with patch("rascal2.dialogs.custom_file_editor.start_matlab", return_value=None) as mock_loader:
+        with tempfile.TemporaryDirectory() as tmp:
+            file = Path(tmp, "testfile.m")
+            file.touch()
+            edit_file_matlab(file)
+        mock_loader.assert_called_once()
+
+    errors = [record for record in caplog.get_records("call") if record.levelno == logging.ERROR]
+    assert len(errors) == 1
+    assert "Attempted to edit a file in MATLAB engine, but `matlabengine` is not available." in caplog.text
+
+
+@pytest.mark.parametrize(
+    "language, expected_lexer",
+    [(Languages.Python, Qsci.QsciLexerPython), (Languages.Matlab, Qsci.QsciLexerMatlab), (None, type(None))],
+)
+def test_dialog_init(custom_file_dialog, language, expected_lexer):
+    """Ensure the custom file editor is set up correctly."""
+
+    with tempfile.TemporaryDirectory() as tmp:
+        dialog = custom_file_dialog(language, tmp)
+
+    assert isinstance(dialog.editor.lexer(), expected_lexer)
+    assert dialog.editor.text() == "Test text for a test dialog!"
+
+
+def test_dialog_save(custom_file_dialog):
+    """Text changes to the editor are saved to the file when save_file is called."""
+    with tempfile.TemporaryDirectory() as tmp:
+        dialog = custom_file_dialog(Languages.Python, tmp)
+
+        dialog.editor.setText("New test text...")
+        dialog.save_file()
+
+        assert Path(tmp, "test_file").read_text() == "New test text..."

tests/widgets/project/test_models.py

@@ -1,14 +1,19 @@
+import tempfile
+from pathlib import Path
 from unittest.mock import MagicMock
 
 import pydantic
 import pytest
 import RATapi
 from PyQt6 import QtCore, QtWidgets
+from RATapi.utils.enums import Languages
 
 import rascal2.widgets.delegates as delegates
 import rascal2.widgets.inputs as inputs
 from rascal2.widgets.project.models import (
     ClassListModel,
+    CustomFileModel,
+    CustomFileWidget,
     LayerFieldWidget,
     LayersModel,
     ParameterFieldWidget,
@@ -353,3 +358,98 @@ def test_layer_widget_delegates(init_class):
 
     for i, header in enumerate(widget.model.headers):
         assert isinstance(widget.table.itemDelegateForColumn(i + 1), expected_delegates[header])
+
+
+def test_file_model_filename_data():
+    """Tests the display data for the CustomFileModel `filename` field is as expected."""
+    init_list = RATapi.ClassList(
+        [
+            RATapi.models.CustomFile(filename="myfile.m", path="/home/user/"),
+            RATapi.models.CustomFile(filename="", path="/"),
+        ]
+    )
+
+    model = CustomFileModel(init_list, parent)
+
+    filename_col = model.headers.index("filename") + 1
+
+    assert model.data(model.index(0, filename_col)) == "myfile.m"
+    assert model.data(model.index(1, filename_col)) == ""
+
+    model.edit_mode = True
+
+    assert Path(model.data(model.index(0, filename_col))) == Path("/home/user/myfile.m")
+    assert model.data(model.index(1, filename_col)) == "Browse..."
+
+
+@pytest.mark.parametrize(
+    "filename, expected_lang, expected_filenames",
+    (
+        ["myfile.m", Languages.Matlab, None],
+        ["myfile.py", Languages.Python, ["func1", "func2", "func3"]],
+        ["myfile.dll", Languages.Cpp, None],
+        ["myfile.so", Languages.Cpp, None],
+        ["myfile.dylib", Languages.Cpp, None],
+    ),
+)
+def test_file_model_set_filename(filename, expected_lang, expected_filenames):
+    """Test the custom file row autocompletes when a filename is set."""
+    init_list = RATapi.ClassList([RATapi.models.CustomFile(filename="", path="/")])
+
+    python_file = "def func1(): pass \ndef func2(): pass \ndef func3(): pass"
+
+    model = CustomFileModel(init_list, parent)
+
+    filename_col = model.headers.index("filename") + 1
+
+    with tempfile.TemporaryDirectory() as tmp:
+        Path(tmp, "myfile.py").write_text(python_file)
+        filepath = Path(tmp, filename)
+        model.setData(model.index(0, filename_col), filepath)
+
+        assert model.classlist[0].path == Path(tmp)
+        assert model.classlist[0].filename == filename
+        assert model.classlist[0].language == expected_lang
+
+        if expected_lang == Languages.Python:
+            assert model.func_names[filepath] == expected_filenames
+            assert model.classlist[0].function_name == "func1"
+
+
+@pytest.mark.parametrize("filename", ["file.m", "file.py", "file.dll", ""])
+def test_file_widget_edit(filename):
+    """Test that the correct index widget is created in edit mode."""
+
+    with tempfile.TemporaryDirectory() as tmp:
+        Path(tmp, "file.py").touch()
+        init_list = RATapi.ClassList([RATapi.models.CustomFile(filename="")])
+
+        widget = CustomFileWidget("files", parent)
+        widget.update_model(init_list)
+
+        edit_col = widget.model.columnCount() - 1
+        assert widget.table.isColumnHidden(edit_col)
+
+        widget.edit()
+
+        assert not widget.table.isColumnHidden(edit_col)
+
+        if filename != "":
+            widget.model.setData(
+                widget.model.index(0, widget.model.headers.index("filename") + 1),
+                Path(tmp, filename),
+            )
+
+        button = widget.table.indexWidget(widget.model.index(0, edit_col))
+        assert isinstance(button, QtWidgets.QPushButton)
+
+        if filename in ["file.m", "file.py"]:
+            assert button.isEnabled()
+        else:
+            assert not button.isEnabled()
+
+        if filename == "file.m":
+            assert button.menu() is not None
+            assert len(button.menu().actions()) == 2
+        else:
+            assert button.menu() is None