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from textwrap import dedent
import pytest
from pysubs2 import SSAFile, SSAEvent, SSAStyle, UnknownFPSError
def test_framerate_inference() -> None:
fps = 1000.0
has_fps = dedent("""\
{1}{1}1000.0
{10}{20}Hello!
""")
no_fps = dedent("""\
{10}{20}Hello!
""")
ignored_fps = dedent("""\
{1}{1}23.976
{10}{20}Hello!
""")
illegal_fps = dedent("""\
{1}{1}-23.976
{10}{20}Hello!
""")
bad_frame_fps = dedent("""\
{10}{20}1000.0
{10}{20}Hello!
""")
subs1 = SSAFile.from_string(has_fps)
assert subs1.fps == fps
assert len(subs1) == 1
assert subs1[0] == SSAEvent(start=10, end=20, text="Hello!")
subs2 = SSAFile.from_string(no_fps, fps=fps)
assert subs2.fps == fps
assert len(subs2) == 1
assert subs2[0] == SSAEvent(start=10, end=20, text="Hello!")
# fps argument takes preference over what the file says, first line is kept
subs3 = SSAFile.from_string(ignored_fps, fps=fps)
assert subs3.fps == fps
assert len(subs3) == 2
assert subs3[0] == SSAEvent(start=1, end=1, text="23.976")
assert subs3[1] == SSAEvent(start=10, end=20, text="Hello!")
with pytest.raises(UnknownFPSError):
SSAFile.from_string(no_fps)
with pytest.raises(ValueError):
SSAFile.from_string(illegal_fps)
with pytest.raises(UnknownFPSError):
# see issue #71
SSAFile.from_string(bad_frame_fps)
subs4 = SSAFile.from_string(bad_frame_fps, strict_fps_inference=False)
assert subs4.fps == fps
assert len(subs4) == 1
assert subs4[0] == SSAEvent(start=10, end=20, text="Hello!")
def test_extra_whitespace_parsing() -> None:
f = dedent("""\
{ 1 } { 1 } 1000.0
{ 10 }{ 20} Hello!
""")
subs = SSAFile.from_string(f)
assert subs[0] == SSAEvent(start=10, end=20, text="Hello!")
def test_newlines_parsing() -> None:
f = "{10}{20} So|Many||Newlines ||| "
subs = SSAFile.from_string(f, fps=1000)
assert subs[0].text == r"So\NMany\N\NNewlines \N\N\N"
def test_tags_parsing() -> None:
f1 = "{10}{20}{Y:i,u}Hello!"
subs1 = SSAFile.from_string(f1, fps=1000)
assert subs1[0].text == "{\\i1\\u1}Hello!"
f2 = "{10}{20}Hello, {f:Comic Sans MS}world!"
subs2 = SSAFile.from_string(f2, fps=1000)
assert subs2[0].text == r"Hello, {\fnComic Sans MS}world!"
# the C tag is not supported, unsupported tags are copied verbatim
f3 = "{10}{20}Hello, {c:$0000FF}world!"
subs3 = SSAFile.from_string(f3, fps=1000)
assert subs3[0].text == r"Hello, {c:$0000FF}world!"
f4 = "{10}{20}Hello, {P:100,200}world!"
subs4 = SSAFile.from_string(f4, fps=1000)
assert subs4[0].text == r"Hello, {\pos(100,200)}world!"
f5 = "{10}{20}Hello, {s:72}world!"
subs5 = SSAFile.from_string(f5, fps=1000)
assert subs5[0].text == r"Hello, {\fs72}world!"
def test_parser_skipping_lines() -> None:
f = dedent("""\
Ook!
{1}{1}23.976
> Hi!
{10}{20}Hello!
1
00:00:00,000 --> 00:00:05,000
When editing their SRT files,
some people get so careless
as to paste them in their MicroDVD files!
""")
subs = SSAFile.from_string(f, format_="microdvd")
assert len(subs) == 1
assert subs[0].text == "Hello!"
def test_writer_tags() -> None:
subs = SSAFile()
subs.styles["italic_style"] = SSAStyle(italic=True)
subs.events = [SSAEvent(start=0, end=10, text=r"Plain."),
SSAEvent(start=0, end=10, text=r"{\i1}Inline."),
SSAEvent(start=0, end=10, text=r"Styled.", style="italic_style"),
SSAEvent(start=0, end=10, text=r"{\i1}Also{\i0} {\ritalic_style}italic."),
SSAEvent(start=0, end=10, text=r"Not {\i1}italic.")]
f = dedent("""\
{1}{1}1000
{0}{10}Plain.
{0}{10}{Y:i}Inline.
{0}{10}{Y:i}Styled.
{0}{10}{Y:i}Also italic.
{0}{10}Not italic.
""")
assert subs.to_string("microdvd", 1000) == f
def test_writer_uses_original_fps() -> None:
subs = SSAFile()
subs.append(SSAEvent(start=0, end=10, text="Hello!"))
subs.fps = 1000
f = dedent("""\
{1}{1}1000
{0}{10}Hello!
""")
assert subs.to_string("microdvd") == f
def test_writer_skips_comment_lines() -> None:
subs = SSAFile()
subs.append(SSAEvent(start=0, end=10, text="Hello!"))
subs.append(SSAEvent(start=0, end=10, text="World!"))
subs[0].is_comment = True
f = dedent("""\
{1}{1}1000
{0}{10}World!
""")
assert subs.to_string("microdvd", fps=1000) == f
def test_writer_handles_whitespace() -> None:
subs = SSAFile()
subs.append(SSAEvent(start=0, end=10,
text=r"Hello,\hworld!\NSo many\N\nNewlines."))
f = dedent("""\
{1}{1}1000
{0}{10}Hello, world!|So many||Newlines.
""")
assert subs.to_string("microdvd", fps=1000) == f
def test_writer_strips_tags() -> None:
subs = SSAFile()
subs.append(SSAEvent(start=0, end=10, text="Let me tell you{a secret}."))
f = dedent("""\
{1}{1}1000
{0}{10}Let me tell you.
""")
assert subs.to_string("microdvd", fps=1000) == f
def test_write_drawing() -> None:
subs = SSAFile()
subs.append(SSAEvent(start=0, end=10, text=r"{\p1}m 0 0 l 100 0 100 100 0 100{\p0}test"))
subs.append(SSAEvent(start=10, end=20, text="Let me tell you."))
f = dedent("""\
{1}{1}1000
{10}{20}Let me tell you.
""")
assert subs.to_string("microdvd", fps=1000) == f
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