diff --git a/tests/modules/fastaIndex/samtools/main.nf.test b/tests/modules/fastaIndex/samtools/main.nf.test
index 3d87f0b..fcd7678 100644
--- a/tests/modules/fastaIndex/samtools/main.nf.test
+++ b/tests/modules/fastaIndex/samtools/main.nf.test
@@ -6,12 +6,12 @@ nextflow_process {
 
     tag "module"
 
-    test("Should produce the fasta index") {
+    test("Should produce the fasta index (compressed genome)") {
 
         when {
             process {
                 """
-                input[0] = "${baseDir}/data/genome.fa"
+                input[0] = "${baseDir}/data/genome.fa.gz"
                 """
             }
         }
@@ -19,12 +19,25 @@ nextflow_process {
         then {
             assert process.success
             assert snapshot(process.out).match()
-            with(process.out[0]) {
-              assert size() == 1
-              assert path(get(0)).md5 == "12d36d122df8dfe8fcfc96d78f785328"
+        }
+
+    }
+
+    test("Should produce the fasta index (uncompressed genome)") {
+
+        when {
+            process {
+                """
+                input[0] = "${baseDir}/data/genome.fa"
+                """
             }
         }
 
+        then {
+            assert process.success
+            assert snapshot(process.out).match()
+        }
+
     }
 
 }
diff --git a/tests/modules/fastaIndex/samtools/main.nf.test.snap b/tests/modules/fastaIndex/samtools/main.nf.test.snap
index 0d7cf12..cf0db22 100644
--- a/tests/modules/fastaIndex/samtools/main.nf.test.snap
+++ b/tests/modules/fastaIndex/samtools/main.nf.test.snap
@@ -1,5 +1,5 @@
 {
-    "Should produce the fasta index": {
+    "Should produce the fasta index (compressed genome)": {
         "content": [
             {
                 "0": [
@@ -11,6 +11,20 @@
             "nf-test": "0.8.4",
             "nextflow": "23.10.1"
         },
-        "timestamp": "2024-04-16T11:50:45.127291"
+        "timestamp": "2024-04-18T18:59:06.37067"
+    },
+    "Should produce the fasta index (uncompressed genome)": {
+        "content": [
+            {
+                "0": [
+                    "genome.fa.fai:md5,12d36d122df8dfe8fcfc96d78f785328"
+                ]
+            }
+        ],
+        "meta": {
+            "nf-test": "0.8.4",
+            "nextflow": "23.10.1"
+        },
+        "timestamp": "2024-04-18T18:59:15.457162"
     }
 }
\ No newline at end of file