70 lines
2.1 KiB
Rust
70 lines
2.1 KiB
Rust
//! Floats milestone iter 4.6 — end-to-end fixture.
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//!
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//! `examples/floats.ail.json` is built via the public `ail build`
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//! CLI and run; stdout is matched against the expected three
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//! lines (`4`, `42`, `-1.5`). This test exercises the full
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//! pipeline — Float literal lowering, polymorphic `+` Float arm,
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//! `int_to_float` (sitofp), `neg` Float (fneg), `io/print_float`
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//! (printf `%g\n`).
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use std::path::PathBuf;
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use std::process::Command;
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fn workspace_root() -> PathBuf {
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PathBuf::from(env!("CARGO_MANIFEST_DIR"))
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.parent().unwrap()
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.parent().unwrap()
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.to_path_buf()
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}
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#[test]
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fn floats_example_prints_expected_stdout() {
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let root = workspace_root();
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let example = root.join("examples").join("floats.ail.json");
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assert!(example.exists(), "expected fixture at {:?}", example);
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// Build via `cargo run -p ail -- build` to use the in-tree CLI.
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let target_bin = std::env::temp_dir().join(format!(
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"ailang-floats-e2e-{}",
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std::process::id()
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));
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let build = Command::new("cargo")
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.current_dir(&root)
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.args([
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"run", "--quiet", "-p", "ail", "--",
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"build",
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example.to_str().unwrap(),
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"-o", target_bin.to_str().unwrap(),
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])
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.output()
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.expect("cargo run -p ail -- build");
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assert!(
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build.status.success(),
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"ail build failed:\nstdout: {}\nstderr: {}",
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String::from_utf8_lossy(&build.stdout),
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String::from_utf8_lossy(&build.stderr),
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);
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let run = Command::new(&target_bin)
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.output()
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.expect("run floats binary");
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assert!(
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run.status.success(),
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"floats binary exited non-zero: status {:?}\nstdout: {}\nstderr: {}",
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run.status,
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String::from_utf8_lossy(&run.stdout),
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String::from_utf8_lossy(&run.stderr),
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);
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let stdout = String::from_utf8_lossy(&run.stdout);
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let expected = "4\n42\n-1.5\n";
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assert_eq!(
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stdout, expected,
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"stdout mismatch.\nGot:\n{}\nExpected:\n{}",
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stdout, expected,
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);
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let _ = std::fs::remove_file(&target_bin);
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}
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