Add tests for leiden_umap subworkflow

Author: grst

tests/.gitignore

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+work
+.nextflow*
+outdir

tests/main.nf

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+#!/usr/bin/env nextflow
+
+nextflow.enable.dsl= 2
+
+params.publish_dir_mode = "symlink"
+params.outdir = "outdir"
+params.options = [:]
+
+include { NEIGHBORS_LEIDEN_UMAP } from "../subworkflows/neighbors_leiden_umap/main.nf"
+
+workflow test_neighbors_leiden_umap_single_res {
+    NEIGHBORS_LEIDEN_UMAP(Channel.fromPath('./testdata/adata_all_celltypes.h5ad'), "X_scVI", 0.5)
+}
+
+workflow test_neighbors_leiden_umap_multi_res {
+    NEIGHBORS_LEIDEN_UMAP(Channel.fromPath('./testdata/adata_all_celltypes.h5ad'), "X_scVI", Channel.from(0.5, 1.0))
+}