def test_render_too_long() -> None:
display_width = 4
text = "hello"
glyphs = font_render(display_width, text)
assert len(glyphs) == display_width
for glyph, char in zip(glyphs, text[:display_width]):
assert glyph == font_lookup(char)
def test_render_short() -> None:
display_width = 8
text = "hello"
text_width = len(text)
glyphs = font_render(display_width, text)
assert len(glyphs) == display_width
for glyph, char in zip(glyphs[:text_width], text):
assert glyph == font_lookup(char)
for glyph in glyphs[text_width:]:
assert glyph == FONT_BLANK_GLYPH
def test_letters_unique() -> None:
seen = set()
for char in ascii_lowercase:
glyph = font_lookup(char)
assert glyph not in seen
seen.add(glyph)
def test_non_asci_chars_blank() -> None:
for char in map(chr, range(0x80, 0x100)):
assert font_lookup(char) == FONT_BLANK_GLYPH
def test_control_chars_blank() -> None:
for char in map(chr, range(0x00, 0x20)):
assert font_lookup(char) == FONT_BLANK_GLYPH
def test_lowercase_and_uppercase_are_same() -> None:
for lower_char, upper_char in zip(ascii_lowercase, ascii_uppercase):
lower_glyph = font_lookup(lower_char)
upper_glyph = font_lookup(upper_char)
assert lower_glyph == upper_glyph