Always use Docker for test config

nextflow.config

@@ -104,17 +104,29 @@ profiles {
         }
         // includeConfig 'configs/container.config'
     }
-    test      { includeConfig 'configs/test.config'      }
+    test      { 
+        process.container      = 'adamd3/strainseq:latest'
+        docker {
+            enabled            = true
+            userEmulation      = true
+            runOptions         = '--pull=always'
+        }
+        singularity.enabled    = false
+        podman.enabled         = false
+        shifter.enabled        = false
+        charliecloud.enabled   = false
+        includeConfig 'configs/test.config'     
+        }
 }
 
-// Export these variables to prevent local Python/R libraries from conflicting with those in the container
+// Export these variables to prevent local Python/R libraries from 
+// conflicting with those in the container
 env {
     PYTHONNOUSERSITE = 1
     R_PROFILE_USER   = "/.Rprofile"
     R_ENVIRON_USER   = "/.Renviron"
 }
 
-
 // Default configuration for the processes in the pipeline
 process {
     cpus   = { check_max( 1    * task.attempt, 'cpus'   ) }