Grcov report - test_discovery.rs

1

use std::path::{Component, Path};

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3

3011

pub(crate) fn is_roundtrip_model_input(path: &Path) -> bool {

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3011

    path.extension().is_some_and(|ext| ext == "essence")

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1158

        && path

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1158

            .file_stem()

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1158

            .and_then(|stem| stem.to_str())

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1158

            .is_some_and(|stem| !stem.contains(".generated") && !stem.contains(".expected"))

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3011

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11

/// Returns whether a test-suite file can affect the generated Rust test list or attributes.

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14880

pub(crate) fn is_compile_time_test_input(path: &Path) -> bool {

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14880

    let Ok(relative) = path.strip_prefix("tests") else {

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        return false;

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};

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14880

    let mut components = relative.components();

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14880

    let Some(Component::Normal(suite_or_file)) = components.next() else {

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        return false;

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};

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14880

    let file_name = path.file_name().and_then(|name| name.to_str());

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14880

    if components.next().is_none() {

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15

        return file_name.is_some_and(|name| name.ends_with("_test_template"));

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14865

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14865

    match suite_or_file.to_str() {

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        Some("exhaustive") => {

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12380

            matches!(file_name, Some("config.toml" | "stats.toml"))

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9554

                || path.extension().is_some_and(|ext| ext == "essence")

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1085

        Some("custom") => matches!(file_name, Some("config.toml" | "run.sh")),

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1398

        Some("roundtrip") => file_name == Some("config.toml") || is_roundtrip_model_input(path),

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2

        _ => false,

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14880

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37

#[cfg(test)]

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mod tests {

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    use super::{is_compile_time_test_input, is_roundtrip_model_input};

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    use std::path::Path;

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    #[test]

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1

    fn watches_files_used_to_generate_tests() {

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1

        for path in [

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1

            "tests/exhaustive/example/input.essence",

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1

            "tests/exhaustive/example/config.toml",

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1

            "tests/exhaustive/example/stats.toml",

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1

            "tests/custom/example/run.sh",

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1

            "tests/custom/example/config.toml",

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1

            "tests/roundtrip/example/input.essence",

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1

            "tests/roundtrip/example/config.toml",

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1

            "tests/exhaustive_test_template",

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1

            "tests/custom_test_template",

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1

            "tests/roundtrip_test_template",

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1

] {

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10

            assert!(is_compile_time_test_input(Path::new(path)), "{path}");

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1

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    #[test]

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1

    fn ignores_runtime_outputs() {

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1

        for path in [

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1

            "tests/exhaustive/example/input.param",

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1

            "tests/exhaustive/example/model.expected.solutions",

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1

            "tests/exhaustive/example/model-generated-rule-trace.txt",

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1

            "tests/custom/example/expected-output",

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1

            "tests/roundtrip/example/tree-sitter.generated.essence",

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1

            "tests/roundtrip/example/tree-sitter.expected.essence",

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1

            "tests/roundtrip/example/tree-sitter.generated.serialised.json",

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1

            "tests/roundtrip/example/tree-sitter.expected.serialised.json",

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1

] {

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8

            assert!(!is_compile_time_test_input(Path::new(path)), "{path}");

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1

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    #[test]

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1

    fn selects_only_roundtrip_source_models() {

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1

        assert!(is_roundtrip_model_input(Path::new(

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1

            "tests/roundtrip/example/input.essence"

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1

        )));

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1

        assert!(!is_roundtrip_model_input(Path::new(

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1

            "tests/roundtrip/example/config.toml"

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1

        )));

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1

        assert!(!is_roundtrip_model_input(Path::new(

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1

            "tests/roundtrip/example/tree-sitter.generated.essence"

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1

        )));

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1

        assert!(!is_roundtrip_model_input(Path::new(

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1

            "tests/roundtrip/example/tree-sitter.expected.essence"

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1

        )));

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1

91