More test coverage, remove unused functions from editor.py

tests/test_editor_features_more.py

@@ -0,0 +1,94 @@
+import base64
+from io import BytesIO
+
+import pytest
+from PySide6.QtCore import Qt, QMimeData, QByteArray
+from PySide6.QtGui import QImage, QPixmap, QKeyEvent, QTextCursor
+from PySide6.QtWidgets import QApplication
+from PySide6.QtTest import QTest
+
+from bouquin.editor import Editor
+from bouquin.theme import ThemeManager, ThemeConfig
+
+@pytest.fixture(scope="module")
+def app():
+    a = QApplication.instance()
+    if a is None:
+        a = QApplication([])
+    return a
+
+@pytest.fixture
+def editor(app, qtbot):
+    themes = ThemeManager(app, ThemeConfig())
+    e = Editor(themes)
+    qtbot.addWidget(e)
+    e.show()
+    return e
+
+def test_todo_prefix_converts_to_checkbox_on_space(editor):
+    editor.clear()
+    editor.setPlainText("TODO")
+    c = editor.textCursor()
+    c.movePosition(QTextCursor.End)
+    editor.setTextCursor(c)
+    QTest.keyClick(editor, Qt.Key_Space)
+    # Now the line should start with the checkbox glyph and a space
+    assert editor.toPlainText().startswith("☐ ")
+
+def test_enter_inside_empty_code_frame_jumps_out(editor):
+    editor.clear()
+    editor.setPlainText("")  # single empty block
+    # Apply code block to current line
+    editor.apply_code()
+    # Cursor is inside the code frame. Press Enter on empty block should jump out.
+    QTest.keyClick(editor, Qt.Key_Return)
+    # We expect two blocks: one code block (with a newline inserted) and then a normal block
+    txt = editor.toPlainText()
+    assert "\n" in txt  # a normal paragraph created after exiting the frame
+
+def test_insertFromMimeData_with_data_image(editor):
+    # Build an in-memory PNG and embed as data URL inside HTML
+    img = QImage(8, 8, QImage.Format_ARGB32)
+    img.fill(0xff00ff00)  # green
+    ba = QByteArray()
+    from PySide6.QtCore import QBuffer, QIODevice
+    buf = QBuffer(ba); buf.open(QIODevice.WriteOnly); img.save(buf, "PNG")
+    data_b64 = base64.b64encode(bytes(ba)).decode("ascii")
+    html = f'<img src="data:image/png;base64,{data_b64}"/>'
+
+    md = QMimeData()
+    md.setHtml(html)
+    editor.insertFromMimeData(md)
+
+    # HTML export with embedded images should contain a data: URL
+    h = editor.to_html_with_embedded_images()
+    assert "data:image/png;base64," in h
+
+def test_toggle_checkboxes_selection(editor):
+    editor.clear()
+    editor.setPlainText("item 1\nitem 2")
+    # Select both lines
+    c = editor.textCursor()
+    c.movePosition(QTextCursor.Start)
+    c.movePosition(QTextCursor.End, QTextCursor.KeepAnchor)
+    editor.setTextCursor(c)
+    # Toggle on -> inserts ☐
+    editor.toggle_checkboxes()
+    assert editor.toPlainText().startswith("☐ ")
+    # Toggle again -> remove ☐
+    editor.toggle_checkboxes()
+    assert not editor.toPlainText().startswith("☐ ")
+
+def test_heading_then_enter_reverts_to_normal(editor):
+    editor.clear()
+    editor.setPlainText("A heading")
+    # Apply H2 via apply_heading(size=18)
+    editor.apply_heading(18)
+    c = editor.textCursor()
+    c.movePosition(QTextCursor.End)
+    editor.setTextCursor(c)
+    # Press Enter -> new block should be Normal (not bold/large)
+    QTest.keyClick(editor, Qt.Key_Return)
+    # The new block exists
+    txt = editor.toPlainText()
+    assert "\n" in txt