Function datafusion_test_data

datafusion/common/src/test_util.rs:212–217

Returns the datafusion test data directory, which is by default rooted at `datafusion/core/tests/data`. The default can be overridden by the optional environment variable `DATAFUSION_TEST_DATA` panics when the directory can not be found. Example: ``` let testdata = datafusion_common::test_util::datafusion_test_data(); let csvdata = format!("{}/window_1.csv", testdata); assert!(std::path::PathBu

()

/// assert!(std::path::PathBuf::from(csvdata).exists());
/// ```
pub fn datafusion_test_data() -> String {
    match get_data_dir("DATAFUSION_TEST_DATA", "../../datafusion/core/tests/data") {
        Ok(pb) => pb.display().to_string(),
        Err(err) => panic!("failed to get arrow data dir: {err}"),
    }
}

/// Returns the arrow test data directory, which is by default stored
/// in a git submodule rooted at `testing/data`.