Resolve "Disease code can be "\n""

Closes #1 (closed)

test/test-integration.yml

@@ -14,6 +14,19 @@
     - path: 16699289/varda/16699289_coverage.varda
     - path: 16699289/varda/16699289_variants.varda
 
+- name: test-integration-n-disease
+  tags:
+    - integration
+  command: >
+    snakemake
+    --configfile test/config/config-n-disease-code.json
+    --use-singularity
+    --singularity-args ' --containall --bind /tmp'
+    --notemp
+    --cores 1
+    16699289/varda/16699289_coverage.varda
+    16699289/varda/16699289_variants.varda
+
 - name: test-integration-trim-alt-exclude-uncalled
   tags:
     - integration