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160 lines
4.8 KiB
Python
160 lines
4.8 KiB
Python
from textual._text_backend import TextEditorBackend
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CONTENT = "Hello, world!"
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def test_set_content():
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editor = TextEditorBackend()
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editor.set_content(CONTENT)
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assert editor.content == CONTENT
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def test_delete_back_cursor_at_start_is_noop():
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editor = TextEditorBackend(CONTENT)
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assert not editor.delete_back()
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assert editor == TextEditorBackend(CONTENT, 0)
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def test_delete_back_cursor_at_end():
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editor = TextEditorBackend(CONTENT)
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assert editor.cursor_text_end()
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assert editor.delete_back()
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assert editor == TextEditorBackend("Hello, world", 12)
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def test_delete_back_cursor_in_middle():
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editor = TextEditorBackend(CONTENT, 5)
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assert editor.delete_back()
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assert editor == TextEditorBackend("Hell, world!", 4)
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def test_delete_forward_cursor_at_start():
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editor = TextEditorBackend(CONTENT)
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assert editor.delete_forward()
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assert editor.content == "ello, world!"
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def test_delete_forward_cursor_at_end_is_noop():
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editor = TextEditorBackend(CONTENT)
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assert editor.cursor_text_end()
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assert not editor.delete_forward()
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assert editor == TextEditorBackend(CONTENT, len(CONTENT))
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def test_delete_forward_cursor_in_middle():
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editor = TextEditorBackend(CONTENT, 5)
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editor.cursor_index = 5
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assert editor.delete_forward()
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assert editor == TextEditorBackend("Hello world!", 5)
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def test_cursor_left_cursor_at_start_is_noop():
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editor = TextEditorBackend(CONTENT)
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assert not editor.cursor_left()
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assert editor == TextEditorBackend(CONTENT)
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def test_cursor_left_cursor_in_middle():
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editor = TextEditorBackend(CONTENT, 6)
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assert editor.cursor_left()
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assert editor == TextEditorBackend(CONTENT, 5)
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def test_cursor_left_cursor_at_end():
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editor = TextEditorBackend(CONTENT, len(CONTENT))
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assert editor.cursor_left()
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assert editor == TextEditorBackend(CONTENT, len(CONTENT) - 1)
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def test_cursor_right_cursor_at_start():
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editor = TextEditorBackend(CONTENT)
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assert editor.cursor_right()
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assert editor == TextEditorBackend(CONTENT, 1)
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def test_cursor_right_cursor_in_middle():
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editor = TextEditorBackend(CONTENT, 5)
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assert editor.cursor_right()
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assert editor == TextEditorBackend(CONTENT, 6)
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def test_cursor_right_cursor_at_end_is_noop():
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editor = TextEditorBackend(CONTENT, len(CONTENT))
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editor.cursor_right()
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assert editor == TextEditorBackend(CONTENT, len(CONTENT))
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def test_query_cursor_left_cursor_at_start_returns_false():
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editor = TextEditorBackend(CONTENT)
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assert not editor.query_cursor_left()
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def test_query_cursor_left_cursor_at_end_returns_true():
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editor = TextEditorBackend(CONTENT, len(CONTENT))
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assert editor.query_cursor_left()
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def test_query_cursor_left_cursor_in_middle_returns_true():
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editor = TextEditorBackend(CONTENT, 6)
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assert editor.query_cursor_left()
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def test_query_cursor_right_cursor_at_start_returns_true():
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editor = TextEditorBackend(CONTENT)
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assert editor.query_cursor_right()
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def test_query_cursor_right_cursor_in_middle_returns_true():
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editor = TextEditorBackend(CONTENT, 6)
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assert editor.query_cursor_right()
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def test_query_cursor_right_cursor_at_end_returns_false():
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editor = TextEditorBackend(CONTENT, len(CONTENT))
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assert not editor.query_cursor_right()
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def test_cursor_text_start_cursor_already_at_start():
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editor = TextEditorBackend(CONTENT)
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assert not editor.cursor_text_start()
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assert editor.cursor_index == 0
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def test_cursor_text_start_cursor_in_middle():
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editor = TextEditorBackend(CONTENT, 6)
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assert editor.cursor_text_start()
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assert editor.cursor_index == 0
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def test_cursor_text_end_cursor_already_at_end():
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editor = TextEditorBackend(CONTENT, len(CONTENT))
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assert not editor.cursor_text_end()
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assert editor.cursor_index == len(CONTENT)
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def test_cursor_text_end_cursor_in_middle():
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editor = TextEditorBackend(CONTENT, len(CONTENT))
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assert not editor.cursor_text_end()
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assert editor.cursor_index == len(CONTENT)
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def test_insert_at_cursor_cursor_at_start():
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editor = TextEditorBackend(CONTENT)
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assert editor.insert_at_cursor("ABC")
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assert editor.content == "ABC" + CONTENT
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assert editor.cursor_index == len("ABC")
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def test_insert_at_cursor_cursor_in_middle():
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start_cursor_index = 6
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editor = TextEditorBackend(CONTENT, start_cursor_index)
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assert editor.insert_at_cursor("ABC")
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assert editor.content == "Hello,ABC world!"
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assert editor.cursor_index == start_cursor_index + len("ABC")
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def test_insert_at_cursor_cursor_at_end():
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editor = TextEditorBackend(CONTENT, len(CONTENT))
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assert editor.insert_at_cursor("ABC")
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assert editor.content == CONTENT + "ABC"
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assert editor.cursor_index == len(editor.content)
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def test_get_range():
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editor = TextEditorBackend(CONTENT)
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assert editor.get_range(0, 5) == "Hello"
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