miscs (Interro02) : horizontal cutting resolution

tests/test_gui_cut_helper.py

@@ -0,0 +1,56 @@
+import os
+import tempfile
+import tkinter as tk
+import unittest
+from pathlib import Path
+from types import SimpleNamespace
+
+import pymupdf
+
+from copienator_gui.cut_helper import CutHelper, PAGE_GAP
+from copienator_gui.manual_resolution import ManualResolutionPanel
+
+
+@unittest.skipUnless(os.environ.get("DISPLAY"), "requires a display")
+class CutHelperTests(unittest.TestCase):
+    def test_cut_button_drag_to_page_gap_and_enter_only_produces_command(self):
+        with tempfile.TemporaryDirectory() as temporary:
+            directory = Path(temporary)
+            source = directory / "Copies" / "Copie16" / "A.pdf"
+            source.parent.mkdir(parents=True)
+            with pymupdf.open() as document:
+                for height in (200, 400):
+                    page = document.new_page(width=300, height=height)
+                    page.insert_text((20, 40), "Student answer")
+                document.save(source)
+            manual = directory / "manual_resolutions.txt"
+            manual.write_text("Copie16 A -> B|\n")
+            original = source.read_bytes()
+            root = tk.Tk()
+            try:
+                panel = ManualResolutionPanel(root, lambda: directory)
+                panel.pack()
+                root.update()
+                self.assertEqual(len(panel.cut_buttons), 1)
+                panel.cut_buttons[0].invoke()
+                helper = next(child for child in panel.winfo_children() if isinstance(child, CutHelper))
+                helper.canvas.yview_moveto(0)
+                root.update()
+                helper.move_bar(SimpleNamespace(y=200 * helper.scale + PAGE_GAP / 2))
+                self.assertIn("entre les pages 1 et 2", helper.caption.get())
+                helper.keep.set(2)
+                helper.mode.set("x")
+                helper.focus_force()
+                root.update()
+                helper.event_generate("<Return>")
+                root.update()
+                self.assertFalse(helper.winfo_exists())
+                self.assertEqual(panel.cut_result.get(), "Copie16 A c{33.333333}2x B|")
+                panel.copy_cut_command()
+                self.assertEqual(root.clipboard_get(), panel.cut_result.get())
+                self.assertEqual(source.read_bytes(), original)
+                self.assertEqual(manual.read_text(), "Copie16 A -> B|\n")
+                panel.reload()
+                self.assertEqual(len(panel.cut_buttons), 1)
+            finally:
+                root.destroy()