gst-plugins-rs/text/wrap/tests/textwrap.rs

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// Copyright (C) 2020 Mathieu Duponchelle <mathieu@centricular.com>
//
// This Source Code Form is subject to the terms of the Mozilla Public License, v2.0.
// If a copy of the MPL was not distributed with this file, You can obtain one at
// <https://mozilla.org/MPL/2.0/>.
//
// SPDX-License-Identifier: MPL-2.0
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use gst::prelude::*;
fn init() {
use std::sync::Once;
static INIT: Once = Once::new();
INIT.call_once(|| {
gst::init().unwrap();
gsttextwrap::plugin_register_static().expect("textwrap test");
});
}
#[test]
fn test_columns() {
init();
let input = b"Split this text up";
let expected_output = "Split\nthis\ntext\nup";
let mut h = gst_check::Harness::new("textwrap");
{
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let wrap = h.element().expect("Could not create textwrap");
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wrap.set_property("columns", 5u32);
}
h.set_src_caps_str("text/x-raw, format=utf8");
let buf = {
let mut buf = gst::Buffer::from_mut_slice(Vec::from(&input[..]));
let buf_ref = buf.get_mut().unwrap();
buf_ref.set_pts(gst::ClockTime::ZERO);
buf_ref.set_duration(2.seconds());
buf
};
assert_eq!(h.push(buf), Ok(gst::FlowSuccess::Ok));
let buf = h.pull().expect("Couldn't pull buffer");
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assert_eq!(buf.pts(), Some(gst::ClockTime::ZERO));
assert_eq!(buf.duration(), Some(2.seconds()));
let map = buf.map_readable().expect("Couldn't map buffer readable");
assert_eq!(
std::str::from_utf8(map.as_ref()),
std::str::from_utf8(expected_output.as_ref())
);
}
#[test]
fn test_lines() {
init();
let input = b"Split this text up";
let mut h = gst_check::Harness::new("textwrap");
{
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let wrap = h.element().expect("Could not create textwrap");
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wrap.set_property("columns", 5u32);
wrap.set_property("lines", 2u32);
}
h.set_src_caps_str("text/x-raw, format=utf8");
let buf = {
let mut buf = gst::Buffer::from_mut_slice(Vec::from(&input[..]));
let buf_ref = buf.get_mut().unwrap();
buf_ref.set_pts(gst::ClockTime::ZERO);
buf_ref.set_duration(2.seconds());
buf
};
assert_eq!(h.push(buf), Ok(gst::FlowSuccess::Ok));
let buf = h.pull().expect("Couldn't pull buffer");
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assert_eq!(buf.pts(), Some(gst::ClockTime::ZERO));
assert_eq!(buf.duration(), Some(gst::ClockTime::SECOND));
let expected_output = "Split\nthis";
let map = buf.map_readable().expect("Couldn't map buffer readable");
assert_eq!(
std::str::from_utf8(map.as_ref()),
std::str::from_utf8(expected_output.as_ref())
);
let buf = h.pull().expect("Couldn't pull buffer");
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assert_eq!(buf.pts(), Some(gst::ClockTime::SECOND));
assert_eq!(buf.duration(), Some(gst::ClockTime::SECOND));
let expected_output = "text\nup";
let map = buf.map_readable().expect("Couldn't map buffer readable");
assert_eq!(
std::str::from_utf8(map.as_ref()),
std::str::from_utf8(expected_output.as_ref())
);
}