59 lines
2.0 KiB
Rust
59 lines
2.0 KiB
Rust
//! Tests for loading errors.
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//!
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//! Note that all the tests in this module are `#[ignore]`. This is because they
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//! take a much longer time to run than normal tests, as they depend upon actually
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//! hitting the limits in librsvg for the number of loaded elements, or the number
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//! of referenced elements during rendering.
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//!
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//! There is a *big* difference in the run-time of these tests when compiled with
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//! `--release` versus `--debug`. So, we will only run them in release-mode tests.
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#![cfg(test)]
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use rsvg::{CairoRenderer, ImplementationLimit, Loader, LoadingError, RenderingError};
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#[ignore]
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#[test]
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fn too_many_elements() {
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let name = "tests/fixtures/errors/bug515-too-many-elements.svgz";
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assert!(matches!(
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Loader::new().read_path(name),
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Err(LoadingError::LimitExceeded(
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ImplementationLimit::TooManyLoadedElements
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))
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));
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}
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fn rendering_instancing_limit(name: &str) {
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let handle = Loader::new()
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.read_path(name)
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.unwrap_or_else(|e| panic!("could not load: {}", e));
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let surface = cairo::ImageSurface::create(cairo::Format::ARgb32, 500, 500).unwrap();
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let cr = cairo::Context::new(&surface).expect("Failed to create a cairo context");
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// Note that at least 515-patttern-billion-laughs.svg requires a viewport of this size
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// or bigger; a smaller one causes the recursive patterns to get so small that they
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// are culled out, and so the document doesn't reach the instancing limit.
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match CairoRenderer::new(&handle)
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.render_document(&cr, &cairo::Rectangle::new(0.0, 0.0, 500.0, 500.0))
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{
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Ok(_) => (),
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Err(RenderingError::LimitExceeded(ImplementationLimit::TooManyReferencedElements)) => (),
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_ => panic!("unexpected error code"),
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}
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}
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#[ignore]
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#[test]
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fn instancing_limit1() {
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rendering_instancing_limit("tests/fixtures/errors/bug323-nested-use.svg");
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}
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#[ignore]
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#[test]
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fn instancing_limit2() {
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rendering_instancing_limit("tests/fixtures/errors/bug515-pattern-billion-laughs.svg");
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}
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