diff --git a/modules/nf-core/vt/decompose/meta.yml b/modules/nf-core/vt/decompose/meta.yml
index 8b9decd8288..0a08d876730 100644
--- a/modules/nf-core/vt/decompose/meta.yml
+++ b/modules/nf-core/vt/decompose/meta.yml
@@ -13,7 +13,7 @@ tools:
       homepage: "https://genome.sph.umich.edu/wiki/Vt"
       documentation: "https://genome.sph.umich.edu/wiki/Vt"
       tool_dev_url: "https://github.com/atks/vt"
-      licence: "['MIT']"
+      licence: ["MIT"]
 input:
   - meta:
       type: map
diff --git a/modules/nf-core/vt/decompose/tests/main.nf.test b/modules/nf-core/vt/decompose/tests/main.nf.test
new file mode 100644
index 00000000000..a23a34cc8ce
--- /dev/null
+++ b/modules/nf-core/vt/decompose/tests/main.nf.test
@@ -0,0 +1,60 @@
+
+nextflow_process {
+
+    name "Test Process VT_DECOMPOSE"
+    script "../main.nf"
+    process "VT_DECOMPOSE"
+    config "./nextflow.config"
+
+    tag "modules"
+    tag "modules_nfcore"
+    tag "vt"
+    tag "vt/decompose"
+
+    test("test-vt-decompose") {
+        
+        when {
+            process {
+                """
+                input[0] = [
+				[ id:'test', single_end:false ], // meta map
+				file(params.modules_testdata_base_path + 'genomics/sarscov2/illumina/vcf/test.vcf.gz', checkIfExists: true),
+				[]
+				]
+
+                """
+            }
+        }
+
+        then {
+            assertAll(
+                { assert process.success },
+                { assert snapshot(process.out).match() }
+            )
+        }
+    }
+    
+    test("test-vt-decompose-intervals") {
+        
+        when {
+            process {
+                """
+                input[0] = [
+				[ id:'test', single_end:false ], // meta map
+				file(params.modules_testdata_base_path + 'genomics/sarscov2/illumina/vcf/test.vcf', checkIfExists: true),
+				file(params.modules_testdata_base_path + 'genomics/sarscov2/genome/bed/test.bed', checkIfExists: true)
+				]
+
+                """
+            }
+        }
+
+        then {
+            assertAll(
+                { assert process.success },
+                { assert snapshot(process.out).match() }
+            )
+        }
+    }
+    
+}
diff --git a/modules/nf-core/vt/decompose/tests/main.nf.test.snap b/modules/nf-core/vt/decompose/tests/main.nf.test.snap
new file mode 100644
index 00000000000..97b3efeb053
--- /dev/null
+++ b/modules/nf-core/vt/decompose/tests/main.nf.test.snap
@@ -0,0 +1,72 @@
+{
+    "test-vt-decompose-intervals": {
+        "content": [
+            {
+                "0": [
+                    [
+                        {
+                            "id": "test",
+                            "single_end": false
+                        },
+                        "decompose.vcf.gz:md5,892b6b5c55c69afd3a96cd9bfd8ab743"
+                    ]
+                ],
+                "1": [
+                    "versions.yml:md5,f10f0ae7e4b74341393c2a9fc87afa87"
+                ],
+                "vcf": [
+                    [
+                        {
+                            "id": "test",
+                            "single_end": false
+                        },
+                        "decompose.vcf.gz:md5,892b6b5c55c69afd3a96cd9bfd8ab743"
+                    ]
+                ],
+                "versions": [
+                    "versions.yml:md5,f10f0ae7e4b74341393c2a9fc87afa87"
+                ]
+            }
+        ],
+        "meta": {
+            "nf-test": "0.8.4",
+            "nextflow": "24.04.4"
+        },
+        "timestamp": "2024-08-22T17:30:33.250927"
+    },
+    "test-vt-decompose": {
+        "content": [
+            {
+                "0": [
+                    [
+                        {
+                            "id": "test",
+                            "single_end": false
+                        },
+                        "decompose.vcf.gz:md5,892b6b5c55c69afd3a96cd9bfd8ab743"
+                    ]
+                ],
+                "1": [
+                    "versions.yml:md5,f10f0ae7e4b74341393c2a9fc87afa87"
+                ],
+                "vcf": [
+                    [
+                        {
+                            "id": "test",
+                            "single_end": false
+                        },
+                        "decompose.vcf.gz:md5,892b6b5c55c69afd3a96cd9bfd8ab743"
+                    ]
+                ],
+                "versions": [
+                    "versions.yml:md5,f10f0ae7e4b74341393c2a9fc87afa87"
+                ]
+            }
+        ],
+        "meta": {
+            "nf-test": "0.8.4",
+            "nextflow": "24.04.4"
+        },
+        "timestamp": "2024-08-22T17:30:27.223776"
+    }
+}
\ No newline at end of file
diff --git a/modules/nf-core/vt/decompose/tests/nextflow.config b/modules/nf-core/vt/decompose/tests/nextflow.config
new file mode 100644
index 00000000000..e15f8113da6
--- /dev/null
+++ b/modules/nf-core/vt/decompose/tests/nextflow.config
@@ -0,0 +1,5 @@
+process {
+    withName: VT_DECOMPOSE {
+        ext.prefix = "decompose"
+    }
+}
\ No newline at end of file
diff --git a/tests/config/pytest_modules.yml b/tests/config/pytest_modules.yml
index fb894666bb1..729bebbe59a 100644
--- a/tests/config/pytest_modules.yml
+++ b/tests/config/pytest_modules.yml
@@ -1668,9 +1668,6 @@ vsearch/sintax:
 vsearch/usearchglobal:
   - modules/nf-core/vsearch/usearchglobal/**
   - tests/modules/nf-core/vsearch/usearchglobal/**
-vt/decompose:
-  - modules/nf-core/vt/decompose/**
-  - tests/modules/nf-core/vt/decompose/**
 vt/normalize:
   - modules/nf-core/vt/normalize/**
   - tests/modules/nf-core/vt/normalize/**
diff --git a/tests/modules/nf-core/vt/decompose/main.nf b/tests/modules/nf-core/vt/decompose/main.nf
deleted file mode 100644
index eabd1fabf9a..00000000000
--- a/tests/modules/nf-core/vt/decompose/main.nf
+++ /dev/null
@@ -1,27 +0,0 @@
-#!/usr/bin/env nextflow
-
-nextflow.enable.dsl = 2
-
-include { VT_DECOMPOSE } from '../../../../../modules/nf-core/vt/decompose/main.nf'
-
-workflow test_vt_decompose {
-    
-    input = [
-        [ id:'test', single_end:false ], // meta map
-        file(params.test_data['sarscov2']['illumina']['test_vcf_gz'], checkIfExists: true),
-        []
-    ]
-
-    VT_DECOMPOSE ( input )
-}
-
-workflow test_vt_decompose_intervals {
-    
-    input = [
-        [ id:'test', single_end:false ], // meta map
-        file(params.test_data['sarscov2']['illumina']['test_vcf'], checkIfExists: true),
-        file(params.test_data['sarscov2']['genome']['test_bed'], checkIfExists: true)
-    ]
-
-    VT_DECOMPOSE ( input )
-}
diff --git a/tests/modules/nf-core/vt/decompose/nextflow.config b/tests/modules/nf-core/vt/decompose/nextflow.config
deleted file mode 100644
index 7559a42fbef..00000000000
--- a/tests/modules/nf-core/vt/decompose/nextflow.config
+++ /dev/null
@@ -1,8 +0,0 @@
-process {
-
-    publishDir = { "${params.outdir}/${task.process.tokenize(':')[-1].tokenize('_')[0].toLowerCase()}" }
-    
-    withName: VT_DECOMPOSE {
-        ext.prefix = "decompose"
-    }
-}
\ No newline at end of file
diff --git a/tests/modules/nf-core/vt/decompose/test.yml b/tests/modules/nf-core/vt/decompose/test.yml
deleted file mode 100644
index 432c3fe7e3d..00000000000
--- a/tests/modules/nf-core/vt/decompose/test.yml
+++ /dev/null
@@ -1,19 +0,0 @@
-- name: vt decompose test_vt_decompose
-  command: nextflow run ./tests/modules/nf-core/vt/decompose -entry test_vt_decompose -c ./tests/config/nextflow.config
-  tags:
-    - vt
-    - vt/decompose
-  files:
-    - path: output/vt/decompose.vcf.gz
-      md5sum: 43192115233852f6ec7bdcd262cee5a8
-    - path: output/vt/versions.yml
-
-- name: vt decompose test_vt_decompose_intervals
-  command: nextflow run ./tests/modules/nf-core/vt/decompose -entry test_vt_decompose_intervals -c ./tests/config/nextflow.config
-  tags:
-    - vt
-    - vt/decompose
-  files:
-    - path: output/vt/decompose.vcf.gz
-      md5sum: 43192115233852f6ec7bdcd262cee5a8
-    - path: output/vt/versions.yml