diff --git a/modules.json b/modules.json
index 0ee6453e..232da38f 100644
--- a/modules.json
+++ b/modules.json
@@ -59,12 +59,12 @@
                     },
                     "gnu/sort": {
                         "branch": "master",
-                        "git_sha": "88f6e982fb8bd40488d837b3b08a65008e602840",
+                        "git_sha": "666652151335353eef2fcd58880bcef5bc2928e1",
                         "installed_by": ["modules"]
                     },
                     "gunzip": {
                         "branch": "master",
-                        "git_sha": "5c460c5a4736974abde2843294f35307ee2b0e5e",
+                        "git_sha": "666652151335353eef2fcd58880bcef5bc2928e1",
                         "installed_by": ["modules"]
                     },
                     "merquryfk/merquryfk": {
diff --git a/modules/nf-core/gnu/sort/environment.yml b/modules/nf-core/gnu/sort/environment.yml
new file mode 100644
index 00000000..babcfb55
--- /dev/null
+++ b/modules/nf-core/gnu/sort/environment.yml
@@ -0,0 +1,7 @@
+---
+# yaml-language-server: $schema=https://raw.githubusercontent.com/nf-core/modules/master/modules/environment-schema.json
+channels:
+  - conda-forge
+  - bioconda
+dependencies:
+  - conda-forge::coreutils=9.3
diff --git a/modules/nf-core/gnu/sort/main.nf b/modules/nf-core/gnu/sort/main.nf
index b0a57fbb..e1167666 100644
--- a/modules/nf-core/gnu/sort/main.nf
+++ b/modules/nf-core/gnu/sort/main.nf
@@ -1,11 +1,11 @@
 process GNU_SORT {
-    tag "${meta.id}"
+    tag "$meta.id"
     label "process_low"
 
-    conda "bioconda::coreutils=8.25"
+    conda "${moduleDir}/environment.yml"
     container "${ workflow.containerEngine == 'singularity' && !task.ext.singularity_pull_docker_container ?
-    'https://depot.galaxyproject.org/singularity/coreutils:8.25--1' :
-    'biocontainers/coreutils:8.25--1' }"
+        'https://depot.galaxyproject.org/singularity/coreutils:9.3':
+        'biocontainers/coreutils:9.3' }"
 
     input:
     tuple val(meta), path(input)
@@ -22,7 +22,7 @@ process GNU_SORT {
     def prefix      = task.ext.prefix   ?: "${meta.id}"
     suffix          = task.ext.suffix   ?: "${input.extension}"
     output_file     = "${prefix}.${suffix}"
-    def VERSION     = "9.1"             // WARN: Version information not provided by tool on CLI. Please update this string when bumping container versions.
+    def VERSION     = "9.3"             // WARN: Version information not provided by tool on CLI. Please update this string when bumping container versions.
     if ("$input" == "$output_file") error "Input and output names are the same, use \"task.ext.prefix\" to disambiguate!"
     """
     sort ${args} ${input} > ${output_file}
@@ -34,15 +34,14 @@ process GNU_SORT {
     """
 
     stub:
-    def args        = task.ext.args     ?: ''
     def prefix      = task.ext.prefix   ?: "${meta.id}"
     suffix          = task.ext.suffix   ?: "${input.extension}"
     output_file     = "${prefix}.${suffix}"
-    def VERSION     = "9.1"
+    def VERSION     = "9.3"
 
     if ("$input" == "$output_file") error "Input and output names are the same, use \"task.ext.prefix\" to disambiguate!"
     """
-    sort ${args} ${input} > ${output_file}
+    touch ${output_file}
 
     cat <<-END_VERSIONS > versions.yml
     "${task.process}":
diff --git a/modules/nf-core/gnu/sort/meta.yml b/modules/nf-core/gnu/sort/meta.yml
index e7fb0284..c555dbb5 100644
--- a/modules/nf-core/gnu/sort/meta.yml
+++ b/modules/nf-core/gnu/sort/meta.yml
@@ -1,4 +1,4 @@
-name: "GNU_SORT"
+name: "gnu_sort"
 description: |
   Writes a sorted concatenation of file/s
 keywords:
@@ -11,32 +11,30 @@ tools:
       homepage: "https://github.com/vgl-hub/gfastats"
       documentation: "https://www.gnu.org/software/coreutils/manual/html_node/sort-invocation.html"
       licence: ["GPL"]
-
+      identifier: ""
 input:
-  - meta:
-      type: map
-      description: |
-        Groovy Map containing sample information
-        e.g. [ id:'test', single_end:false ]
-  - input:
-      type: file
-      description: Draft assembly file
-      pattern: "*.{txt,bed,interval,genome,bins}"
-
+  - - meta:
+        type: map
+        description: |
+          Groovy Map containing sample information
+          e.g. [ id:'test', single_end:false ]
+    - input:
+        type: file
+        description: Draft assembly file
+        pattern: "*.{txt,bed,interval,genome,bins}"
 output:
-  - meta:
-      type: map
-      description: |
-        Groovy Map containing sample information
-        e.g. [ id:'test', single_end:false ]
   - sorted:
-      type: file
-      description: The sorted txt file generated by sort
-      pattern: "*.{txt,bed,interval,genome,bins}"
+      - meta:
+          type: map
+          description: |
+            Groovy Map containing sample information
+            e.g. [ id:'test', single_end:false ]
   - versions:
-      type: file
-      description: File containing software versions
-      pattern: "versions.yml"
-
+      - versions.yml:
+          type: file
+          description: File containing software versions
+          pattern: "versions.yml"
 authors:
   - "@DLBPointon"
+maintainers:
+  - "@DLBPointon"
diff --git a/modules/nf-core/gnu/sort/tests/main.nf.test b/modules/nf-core/gnu/sort/tests/main.nf.test
new file mode 100644
index 00000000..e4030187
--- /dev/null
+++ b/modules/nf-core/gnu/sort/tests/main.nf.test
@@ -0,0 +1,120 @@
+nextflow_process {
+
+    name "Test Process GNU_SORT"
+    script "modules/nf-core/gnu/sort/main.nf"
+    process "GNU_SORT"
+
+    tag "modules"
+    tag "modules_nfcore"
+    tag "gnu"
+    tag "gnu/sort"
+
+    test("unsorted_genome_sort") {
+        config "./sort_simple_bed.config"
+
+        when {
+            process {
+                """
+                input[0] = [
+                                [id:'genome_test'],
+                                file(params.test_data['generic']['unsorted_data']['unsorted_text']['genome_file'],
+                                checkIfExists: true)
+                            ]
+                """
+            }
+        }
+
+        then {
+            assertAll (
+                { assert process.success },
+                { assert snapshot(process.out).match() },
+                { assert snapshot(
+                            file(process.out.sorted[0][1]).name
+                                ).match("genome_sort")
+                }
+            )
+        }
+
+    }
+
+    test("unsorted_intervals_sort") {
+        config "./sort_simple_bed.config"
+        when {
+            process {
+                """
+                input[0] = [
+                                [id:'test'],
+                                file(params.test_data['generic']['unsorted_data']['unsorted_text']['intervals'],
+                                checkIfExists: true)
+                            ]
+                """
+            }
+        }
+
+        then {
+            assertAll (
+                { assert process.success },
+                { assert snapshot(process.out).match() },
+                { assert snapshot(
+                            file(process.out.sorted[0][1]).name
+                                ).match("interval_sort")
+                }
+            )
+        }
+
+    }
+
+    test("unsorted_csv_sort") {
+        config "./sort_complex.config"
+
+        when {
+            process {
+                """
+                input[0] = [
+                                [id:'test'],
+                                file(params.test_data['generic']['unsorted_data']['unsorted_text']['numbers_csv'],
+                                checkIfExists: true)
+                            ]
+                """
+            }
+        }
+
+        then {
+            assertAll (
+                { assert process.success },
+                { assert snapshot(process.out).match() },
+                { assert snapshot(
+                            file(process.out.sorted[0][1]).name
+                                ).match("csv_sort")
+                }
+            )
+        }
+
+    }
+
+    test("unsorted_csv_sort_stub") {
+        config "./sort_complex.config"
+        options "-stub"
+
+        when {
+            process {
+                """
+                input[0] = [
+                                [id:'test'],
+                                file(params.test_data['generic']['unsorted_data']['unsorted_text']['numbers_csv'],
+                                checkIfExists: true)
+                            ]
+                """
+            }
+        }
+
+        then {
+            assertAll (
+                { assert process.success },
+                { assert snapshot(process.out).match() },
+            )
+        }
+
+    }
+
+}
diff --git a/modules/nf-core/gnu/sort/tests/main.nf.test.snap b/modules/nf-core/gnu/sort/tests/main.nf.test.snap
new file mode 100644
index 00000000..63891bc4
--- /dev/null
+++ b/modules/nf-core/gnu/sort/tests/main.nf.test.snap
@@ -0,0 +1,164 @@
+{
+    "unsorted_csv_sort": {
+        "content": [
+            {
+                "0": [
+                    [
+                        {
+                            "id": "test"
+                        },
+                        "test.csv.sorted:md5,0b52d1b4c4a0c6e972c6f94aafd75a1d"
+                    ]
+                ],
+                "1": [
+                    "versions.yml:md5,dd412503ec9dd665203e083ea44326cb"
+                ],
+                "sorted": [
+                    [
+                        {
+                            "id": "test"
+                        },
+                        "test.csv.sorted:md5,0b52d1b4c4a0c6e972c6f94aafd75a1d"
+                    ]
+                ],
+                "versions": [
+                    "versions.yml:md5,dd412503ec9dd665203e083ea44326cb"
+                ]
+            }
+        ],
+        "meta": {
+            "nf-test": "0.8.4",
+            "nextflow": "24.04.2"
+        },
+        "timestamp": "2024-06-14T11:13:44.714632791"
+    },
+    "interval_sort": {
+        "content": [
+            "test.bed.sorted"
+        ],
+        "meta": {
+            "nf-test": "0.8.4",
+            "nextflow": "24.04.2"
+        },
+        "timestamp": "2024-06-14T11:13:37.962807086"
+    },
+    "unsorted_csv_sort_stub": {
+        "content": [
+            {
+                "0": [
+                    [
+                        {
+                            "id": "test"
+                        },
+                        "test.csv.sorted:md5,d41d8cd98f00b204e9800998ecf8427e"
+                    ]
+                ],
+                "1": [
+                    "versions.yml:md5,dd412503ec9dd665203e083ea44326cb"
+                ],
+                "sorted": [
+                    [
+                        {
+                            "id": "test"
+                        },
+                        "test.csv.sorted:md5,d41d8cd98f00b204e9800998ecf8427e"
+                    ]
+                ],
+                "versions": [
+                    "versions.yml:md5,dd412503ec9dd665203e083ea44326cb"
+                ]
+            }
+        ],
+        "meta": {
+            "nf-test": "0.8.4",
+            "nextflow": "24.04.2"
+        },
+        "timestamp": "2024-06-14T11:13:51.456258705"
+    },
+    "csv_sort": {
+        "content": [
+            "test.csv.sorted"
+        ],
+        "meta": {
+            "nf-test": "0.8.4",
+            "nextflow": "24.04.2"
+        },
+        "timestamp": "2024-06-14T11:13:44.725431761"
+    },
+    "unsorted_genome_sort": {
+        "content": [
+            {
+                "0": [
+                    [
+                        {
+                            "id": "genome_test"
+                        },
+                        "genome_test.bed.sorted:md5,fd97f7efafdbbfa71d9b560f10b4b048"
+                    ]
+                ],
+                "1": [
+                    "versions.yml:md5,dd412503ec9dd665203e083ea44326cb"
+                ],
+                "sorted": [
+                    [
+                        {
+                            "id": "genome_test"
+                        },
+                        "genome_test.bed.sorted:md5,fd97f7efafdbbfa71d9b560f10b4b048"
+                    ]
+                ],
+                "versions": [
+                    "versions.yml:md5,dd412503ec9dd665203e083ea44326cb"
+                ]
+            }
+        ],
+        "meta": {
+            "nf-test": "0.8.4",
+            "nextflow": "24.04.2"
+        },
+        "timestamp": "2024-06-14T11:13:31.041778719"
+    },
+    "genome_sort": {
+        "content": [
+            "genome_test.bed.sorted"
+        ],
+        "meta": {
+            "nf-test": "0.8.4",
+            "nextflow": "24.04.2"
+        },
+        "timestamp": "2024-06-14T11:13:31.060201722"
+    },
+    "unsorted_intervals_sort": {
+        "content": [
+            {
+                "0": [
+                    [
+                        {
+                            "id": "test"
+                        },
+                        "test.bed.sorted:md5,abbce903ef263d38b2f71856387799ab"
+                    ]
+                ],
+                "1": [
+                    "versions.yml:md5,dd412503ec9dd665203e083ea44326cb"
+                ],
+                "sorted": [
+                    [
+                        {
+                            "id": "test"
+                        },
+                        "test.bed.sorted:md5,abbce903ef263d38b2f71856387799ab"
+                    ]
+                ],
+                "versions": [
+                    "versions.yml:md5,dd412503ec9dd665203e083ea44326cb"
+                ]
+            }
+        ],
+        "meta": {
+            "nf-test": "0.8.4",
+            "nextflow": "24.04.2"
+        },
+        "timestamp": "2024-06-14T11:13:37.951397547"
+    }
+}
\ No newline at end of file
diff --git a/modules/nf-core/gnu/sort/tests/sort_complex.config b/modules/nf-core/gnu/sort/tests/sort_complex.config
new file mode 100644
index 00000000..103eaaf6
--- /dev/null
+++ b/modules/nf-core/gnu/sort/tests/sort_complex.config
@@ -0,0 +1,6 @@
+process {
+    withName: GNU_SORT {
+        ext.args    = { "-t ';' -g -k 1,1 -k 2,2" }
+        ext.suffix  = { "csv.sorted" }
+    }
+}
\ No newline at end of file
diff --git a/modules/nf-core/gnu/sort/tests/sort_simple_bed.config b/modules/nf-core/gnu/sort/tests/sort_simple_bed.config
new file mode 100644
index 00000000..d7d52e0f
--- /dev/null
+++ b/modules/nf-core/gnu/sort/tests/sort_simple_bed.config
@@ -0,0 +1,6 @@
+process {
+    withName: GNU_SORT {
+        ext.args    = { "-k1,1 -k2,2n" }
+        ext.suffix  = { "bed.sorted" }
+    }
+}
\ No newline at end of file
diff --git a/modules/nf-core/gnu/sort/tests/sort_simple_genome.config b/modules/nf-core/gnu/sort/tests/sort_simple_genome.config
new file mode 100644
index 00000000..4dcec385
--- /dev/null
+++ b/modules/nf-core/gnu/sort/tests/sort_simple_genome.config
@@ -0,0 +1,6 @@
+process {
+    withName: GNU_SORT {
+        ext.args    = { "-k1,1 -k2,2n" }
+        ext.suffix  = { "genome.sorted" }
+    }
+}
\ No newline at end of file
diff --git a/modules/nf-core/gnu/sort/tests/tags.yml b/modules/nf-core/gnu/sort/tests/tags.yml
new file mode 100644
index 00000000..ac40e376
--- /dev/null
+++ b/modules/nf-core/gnu/sort/tests/tags.yml
@@ -0,0 +1,2 @@
+gnu/sort:
+  - "modules/nf-core/gnu/sort/**"
diff --git a/modules/nf-core/gunzip/environment.yml b/modules/nf-core/gunzip/environment.yml
new file mode 100644
index 00000000..c7794856
--- /dev/null
+++ b/modules/nf-core/gunzip/environment.yml
@@ -0,0 +1,7 @@
+channels:
+  - conda-forge
+  - bioconda
+dependencies:
+  - conda-forge::grep=3.11
+  - conda-forge::sed=4.8
+  - conda-forge::tar=1.34
diff --git a/modules/nf-core/gunzip/main.nf b/modules/nf-core/gunzip/main.nf
index e7189d2f..5e67e3b9 100644
--- a/modules/nf-core/gunzip/main.nf
+++ b/modules/nf-core/gunzip/main.nf
@@ -2,10 +2,10 @@ process GUNZIP {
     tag "$archive"
     label 'process_single'
 
-    conda "conda-forge::sed=4.7"
+    conda "${moduleDir}/environment.yml"
     container "${ workflow.containerEngine == 'singularity' && !task.ext.singularity_pull_docker_container ?
-        'https://depot.galaxyproject.org/singularity/ubuntu:20.04' :
-        'nf-core/ubuntu:20.04' }"
+        'https://depot.galaxyproject.org/singularity/ubuntu:22.04' :
+        'nf-core/ubuntu:22.04' }"
 
     input:
     tuple val(meta), path(archive)
@@ -18,13 +18,20 @@ process GUNZIP {
     task.ext.when == null || task.ext.when
 
     script:
-    def args = task.ext.args ?: ''
-    gunzip = archive.toString() - '.gz'
+    def args        = task.ext.args ?: ''
+    def extension   = ( archive.toString() - '.gz' ).tokenize('.')[-1]
+    def name        = archive.toString() - '.gz' - ".$extension"
+    def prefix      = task.ext.prefix ?: name
+    gunzip          = prefix + ".$extension"
     """
-    gunzip \\
-        -f \\
+    # Not calling gunzip itself because it creates files
+    # with the original group ownership rather than the
+    # default one for that user / the work directory
+    gzip \\
+        -cd \\
         $args \\
-        $archive
+        $archive \\
+        > $gunzip
 
     cat <<-END_VERSIONS > versions.yml
     "${task.process}":
@@ -33,7 +40,11 @@ process GUNZIP {
     """
 
     stub:
-    gunzip = archive.toString() - '.gz'
+    def args        = task.ext.args ?: ''
+    def extension   = ( archive.toString() - '.gz' ).tokenize('.')[-1]
+    def name        = archive.toString() - '.gz' - ".$extension"
+    def prefix      = task.ext.prefix ?: name
+    gunzip          = prefix + ".$extension"
     """
     touch $gunzip
     cat <<-END_VERSIONS > versions.yml
diff --git a/modules/nf-core/gunzip/meta.yml b/modules/nf-core/gunzip/meta.yml
index 4cdcdf4c..9066c035 100644
--- a/modules/nf-core/gunzip/meta.yml
+++ b/modules/nf-core/gunzip/meta.yml
@@ -10,26 +10,38 @@ tools:
         gzip is a file format and a software application used for file compression and decompression.
       documentation: https://www.gnu.org/software/gzip/manual/gzip.html
       licence: ["GPL-3.0-or-later"]
+      identifier: ""
 input:
-  - meta:
-      type: map
-      description: |
-        Optional groovy Map containing meta information
-        e.g. [ id:'test', single_end:false ]
-  - archive:
-      type: file
-      description: File to be compressed/uncompressed
-      pattern: "*.*"
+  - - meta:
+        type: map
+        description: |
+          Optional groovy Map containing meta information
+          e.g. [ id:'test', single_end:false ]
+    - archive:
+        type: file
+        description: File to be compressed/uncompressed
+        pattern: "*.*"
 output:
   - gunzip:
-      type: file
-      description: Compressed/uncompressed file
-      pattern: "*.*"
+      - meta:
+          type: file
+          description: Compressed/uncompressed file
+          pattern: "*.*"
+      - $gunzip:
+          type: file
+          description: Compressed/uncompressed file
+          pattern: "*.*"
   - versions:
-      type: file
-      description: File containing software versions
-      pattern: "versions.yml"
+      - versions.yml:
+          type: file
+          description: File containing software versions
+          pattern: "versions.yml"
 authors:
   - "@joseespinosa"
   - "@drpatelh"
   - "@jfy133"
+maintainers:
+  - "@joseespinosa"
+  - "@drpatelh"
+  - "@jfy133"
+  - "@gallvp"
diff --git a/modules/nf-core/gunzip/tests/main.nf.test b/modules/nf-core/gunzip/tests/main.nf.test
new file mode 100644
index 00000000..776211ad
--- /dev/null
+++ b/modules/nf-core/gunzip/tests/main.nf.test
@@ -0,0 +1,121 @@
+nextflow_process {
+
+    name "Test Process GUNZIP"
+    script "../main.nf"
+    process "GUNZIP"
+    tag "gunzip"
+    tag "modules_nfcore"
+    tag "modules"
+
+    test("Should run without failures") {
+
+        when {
+            params {
+                outdir = "$outputDir"
+            }
+            process {
+                """
+                input[0] = Channel.of([
+                        [],
+                        file(params.modules_testdata_base_path + 'genomics/sarscov2/illumina/fastq/test_1.fastq.gz', checkIfExists: true)
+                    ]
+                )
+                """
+            }
+        }
+
+        then {
+            assertAll(
+            { assert process.success },
+            { assert snapshot(process.out).match() }
+            )
+        }
+
+    }
+
+    test("Should run without failures - prefix") {
+
+        config './nextflow.config'
+
+        when {
+            params {
+                outdir = "$outputDir"
+            }
+            process {
+                """
+                input[0] = Channel.of([
+                        [ id: 'test' ],
+                        file(params.modules_testdata_base_path + 'genomics/sarscov2/illumina/fastq/test_1.fastq.gz', checkIfExists: true)
+                    ]
+                )
+                """
+            }
+        }
+
+        then {
+            assertAll(
+            { assert process.success },
+            { assert snapshot(process.out).match() }
+            )
+        }
+
+    }
+
+    test("Should run without failures - stub") {
+
+        options '-stub'
+
+        when {
+            params {
+                outdir = "$outputDir"
+            }
+            process {
+                """
+                input[0] = Channel.of([
+                        [],
+                        file(params.modules_testdata_base_path + 'genomics/sarscov2/illumina/fastq/test_1.fastq.gz', checkIfExists: true)
+                    ]
+                )
+                """
+            }
+        }
+
+        then {
+            assertAll(
+            { assert process.success },
+            { assert snapshot(process.out).match() }
+            )
+        }
+
+    }
+
+    test("Should run without failures - prefix - stub") {
+
+        options '-stub'
+        config './nextflow.config'
+
+        when {
+            params {
+                outdir = "$outputDir"
+            }
+            process {
+                """
+                input[0] = Channel.of([
+                        [ id: 'test' ],
+                        file(params.modules_testdata_base_path + 'genomics/sarscov2/illumina/fastq/test_1.fastq.gz', checkIfExists: true)
+                    ]
+                )
+                """
+            }
+        }
+
+        then {
+            assertAll(
+            { assert process.success },
+            { assert snapshot(process.out).match() }
+            )
+        }
+
+    }
+
+}
diff --git a/modules/nf-core/gunzip/tests/main.nf.test.snap b/modules/nf-core/gunzip/tests/main.nf.test.snap
new file mode 100644
index 00000000..069967e7
--- /dev/null
+++ b/modules/nf-core/gunzip/tests/main.nf.test.snap
@@ -0,0 +1,134 @@
+{
+    "Should run without failures - prefix - stub": {
+        "content": [
+            {
+                "0": [
+                    [
+                        {
+                            "id": "test"
+                        },
+                        "test.xyz.fastq:md5,d41d8cd98f00b204e9800998ecf8427e"
+                    ]
+                ],
+                "1": [
+                    "versions.yml:md5,54376d32aca20e937a4ec26dac228e84"
+                ],
+                "gunzip": [
+                    [
+                        {
+                            "id": "test"
+                        },
+                        "test.xyz.fastq:md5,d41d8cd98f00b204e9800998ecf8427e"
+                    ]
+                ],
+                "versions": [
+                    "versions.yml:md5,54376d32aca20e937a4ec26dac228e84"
+                ]
+            }
+        ],
+        "meta": {
+            "nf-test": "0.8.4",
+            "nextflow": "24.04.2"
+        },
+        "timestamp": "2024-06-25T11:35:10.861293"
+    },
+    "Should run without failures - stub": {
+        "content": [
+            {
+                "0": [
+                    [
+                        [
+                            
+                        ],
+                        "test_1.fastq:md5,d41d8cd98f00b204e9800998ecf8427e"
+                    ]
+                ],
+                "1": [
+                    "versions.yml:md5,54376d32aca20e937a4ec26dac228e84"
+                ],
+                "gunzip": [
+                    [
+                        [
+                            
+                        ],
+                        "test_1.fastq:md5,d41d8cd98f00b204e9800998ecf8427e"
+                    ]
+                ],
+                "versions": [
+                    "versions.yml:md5,54376d32aca20e937a4ec26dac228e84"
+                ]
+            }
+        ],
+        "meta": {
+            "nf-test": "0.8.4",
+            "nextflow": "24.04.2"
+        },
+        "timestamp": "2024-06-25T11:35:05.857145"
+    },
+    "Should run without failures": {
+        "content": [
+            {
+                "0": [
+                    [
+                        [
+                            
+                        ],
+                        "test_1.fastq:md5,4161df271f9bfcd25d5845a1e220dbec"
+                    ]
+                ],
+                "1": [
+                    "versions.yml:md5,54376d32aca20e937a4ec26dac228e84"
+                ],
+                "gunzip": [
+                    [
+                        [
+                            
+                        ],
+                        "test_1.fastq:md5,4161df271f9bfcd25d5845a1e220dbec"
+                    ]
+                ],
+                "versions": [
+                    "versions.yml:md5,54376d32aca20e937a4ec26dac228e84"
+                ]
+            }
+        ],
+        "meta": {
+            "nf-test": "0.8.4",
+            "nextflow": "24.04.2"
+        },
+        "timestamp": "2023-10-17T15:35:37.690477896"
+    },
+    "Should run without failures - prefix": {
+        "content": [
+            {
+                "0": [
+                    [
+                        {
+                            "id": "test"
+                        },
+                        "test.xyz.fastq:md5,4161df271f9bfcd25d5845a1e220dbec"
+                    ]
+                ],
+                "1": [
+                    "versions.yml:md5,54376d32aca20e937a4ec26dac228e84"
+                ],
+                "gunzip": [
+                    [
+                        {
+                            "id": "test"
+                        },
+                        "test.xyz.fastq:md5,4161df271f9bfcd25d5845a1e220dbec"
+                    ]
+                ],
+                "versions": [
+                    "versions.yml:md5,54376d32aca20e937a4ec26dac228e84"
+                ]
+            }
+        ],
+        "meta": {
+            "nf-test": "0.8.4",
+            "nextflow": "24.04.2"
+        },
+        "timestamp": "2024-06-25T11:33:32.921739"
+    }
+}
\ No newline at end of file
diff --git a/modules/nf-core/gunzip/tests/nextflow.config b/modules/nf-core/gunzip/tests/nextflow.config
new file mode 100644
index 00000000..dec77642
--- /dev/null
+++ b/modules/nf-core/gunzip/tests/nextflow.config
@@ -0,0 +1,5 @@
+process {
+    withName: GUNZIP {
+        ext.prefix = { "${meta.id}.xyz" }
+    }
+}
diff --git a/modules/nf-core/gunzip/tests/tags.yml b/modules/nf-core/gunzip/tests/tags.yml
new file mode 100644
index 00000000..fd3f6915
--- /dev/null
+++ b/modules/nf-core/gunzip/tests/tags.yml
@@ -0,0 +1,2 @@
+gunzip:
+  - modules/nf-core/gunzip/**