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We compile each test file to LLVM IR assembly, and then pass that IR to a dedicated program that can decode LLVM coverage maps and print them in a more human-readable format. We can then check that output against known-good snapshots. This test suite has some advantages over the existing `run-coverage` tests: - We can test coverage instrumentation without needing to run target binaries. - We can observe subtle improvements/regressions in the underlying coverage mappings that don't make a visible difference to coverage reports.
10 lines
160 B
Rust
10 lines
160 B
Rust
// compile-flags: --edition=2021
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fn main() {
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let cond = std::env::args().len() == 1;
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if cond {
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println!("true");
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}
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println!("done");
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}
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