Function test_mann_whitney_method

src/memory/processing/diffexp/mod.rs:1236–1276

()

    #[test]
    fn test_mann_whitney_method() -> anyhow::Result<()> {
        let adata = create_test_anndata()?;

        rank_gene_groups(
            &adata,
            "group",
            Some("rest"),
            Some(&["A"]),
            Some("mann_whitney_test"),
            Some(TestMethod::MannWhitney),
            Some(5),
            CorrectionMethod::Bonferroni,
            Some(true),
            Some(0.5),
        )?;

        let uns = adata.uns();
        let scores = uns.get_data("rank_genes_groups_mann_whitney_test_scores")?;
        let _pvals = uns.get_data("rank_genes_groups_mann_whitney_test_pvals")?;
        let method_param = uns.get_data("rank_genes_groups_mann_whitney_test_params_method")?;

        let method_data = method_param.get_data()?;
        match method_data {
            Data::Scalar(scalar) => match scalar {
                DynScalar::String(s) => {
                    assert!(s.contains("MannWhitney"));
                }
                _ => panic!("Expected string scalar for method parameter"),
            },
            _ => panic!("Expected scalar data for method parameter"),
        }

        match scores.get_data()? {
            Data::ArrayData(ArrayData::DataFrame(df)) => {
                assert_eq!(df.height(), 5, "Should return exactly 5 genes");
            }
            _ => panic!("Expected DataFrame for scores"),
        }

        Ok(())
    }

    #[test]
    fn test_multiple_groups() -> anyhow::Result<()> {