fix: bamcoverage without effective genome size

bio/deeptools/bamcoverage/test/Snakefile

@@ -28,3 +28,15 @@ rule test_deeptools_bamcoverage_default_eff_len:
         "logs/coverage_efault_eff_len.log",
     wrapper:
         "master/bio/deeptools/bamcoverage"
+
+
+rule test_deeptools_bamcoverage_no_params:
+    input:
+        bam="a.sorted.bam",
+        bai="a.sorted.bam.bai",
+    output:
+        "a.coverage_no_params.bw",
+    log:
+        "logs/coverage.log",
+    wrapper:
+        "master/bio/deeptools/bamcoverage"

bio/deeptools/bamcoverage/wrapper.py

@@ -100,7 +100,7 @@
     },
 }
 
-effective_genome_size = snakemake.params.get("effective_genome_size")
+effective_genome_size = snakemake.params.get("effective_genome_size", "")
 if not effective_genome_size:
     genome = snakemake.params.get("genome")
     read_length = snakemake.params.get("read_length")

test.py

@@ -2870,6 +2870,21 @@ def test_deeptools_bamcoverage_eff():
     )
 
 
+@skip_if_not_modified
+def test_deeptools_bamcoverage_no_params():
+    run(
+        "bio/deeptools/bamcoverage",
+        [
+            "snakemake",
+            "--cores",
+            "1",
+            "a.coverage_no_params.bw",
+            "--use-conda",
+            "-F",
+        ],
+    )
+
+
 @skip_if_not_modified
 def test_deeptools_alignmentsieve():
     run(