def write_to_file(): fakefile = FakeFile() staticdiffmodel = _make_static_diffmodel() old_static_lines = list( ln.clone() for ln in staticdiffmodel.get_lines() ) editable = EditableDiffModel( staticdiffmodel ) # Make several overlapping changes, including a deletion editable.edit_lines( 0, 2, directions.RIGHT, ( "edited 1a", "edited 2a", "edited 3a" ) ) editable.edit_lines( 1, 3, directions.RIGHT, ( "edited 2b", "edited 3b", "edited 4b" ) ) editable.delete_lines( 1, 1, directions.RIGHT ) editable.edit_lines( 2, 4, directions.RIGHT, ( "edited 3c", "edited 4c", "edited 5c" ) ) editable.write_to_file( fakefile, directions.RIGHT ) assert_strings_equal( fakefile.txt, "edited 1a\n" + "edited 3c\n" + "edited 4c\n" + "edited 5c\n" + "line 6 here\n" + "line 7 here\n" + "line 8 here\n" + "line 9 here\n" + "line 10 here\n" ) assert_lines_lists_equal( old_static_lines, staticdiffmodel.get_lines() )
def write_to_file_no_changes(): fakefile = FakeFile() staticdiffmodel = _make_static_diffmodel() editable = EditableDiffModel( staticdiffmodel ) editable.write_to_file( fakefile, directions.LEFT ) assert_strings_equal( fakefile.txt, "line 1 here\n" + "line 2 here\n" + "line 3 here\n" + "line 4 here\n" + "line 5 here\n" + "line 6 here\n" + "line 7 here\n" + "line 8 here\n" + "line 9 here\n" + "previous 10\n" )