diff --git a/tests/bismark_hisat.nf.test b/tests/bismark_hisat.nf.test
index 8ac37b1e..e6eb541f 100644
--- a/tests/bismark_hisat.nf.test
+++ b/tests/bismark_hisat.nf.test
@@ -3,6 +3,7 @@ nextflow_pipeline {
     name "Test Workflow main.nf"
     script "../main.nf"
     config "./nextflow.config"
+    tag "cpu"
 
     test("Params: bismark_hisat") {
         when {
diff --git a/tests/bismark_hisat_rrbs.nf.test b/tests/bismark_hisat_rrbs.nf.test
index b8715634..b3299798 100644
--- a/tests/bismark_hisat_rrbs.nf.test
+++ b/tests/bismark_hisat_rrbs.nf.test
@@ -3,6 +3,7 @@ nextflow_pipeline {
     name "Test Workflow main.nf"
     script "../main.nf"
     config "./nextflow.config"
+    tag "cpu"
 
     test("Params: bismark_hisat | rrbs") {
         when {
diff --git a/tests/bismark_hisat_save_reference_save_align_intermeds.nf.test b/tests/bismark_hisat_save_reference_save_align_intermeds.nf.test
index 2f2b0a0c..b42aa6cf 100644
--- a/tests/bismark_hisat_save_reference_save_align_intermeds.nf.test
+++ b/tests/bismark_hisat_save_reference_save_align_intermeds.nf.test
@@ -3,6 +3,7 @@ nextflow_pipeline {
     name "Test Workflow main.nf"
     script "../main.nf"
     config "./nextflow.config"
+    tag "cpu"
 
     test("Params: bismark_hisat | save_reference | save_align_intermeds") {
         when {
diff --git a/tests/bismark_nomeseq.nf.test b/tests/bismark_nomeseq.nf.test
index 4cd98ef6..cd2f81e6 100644
--- a/tests/bismark_nomeseq.nf.test
+++ b/tests/bismark_nomeseq.nf.test
@@ -3,6 +3,7 @@ nextflow_pipeline {
     name "Test Workflow main.nf"
     script "../main.nf"
     config "./nextflow.config"
+    tag "cpu"
 
     test("Params: bismark | nomeseq") {
         when {
diff --git a/tests/bismark_rrbs.nf.test b/tests/bismark_rrbs.nf.test
index 185a9998..65b9393c 100644
--- a/tests/bismark_rrbs.nf.test
+++ b/tests/bismark_rrbs.nf.test
@@ -3,6 +3,7 @@ nextflow_pipeline {
     name "Test Workflow main.nf"
     script "../main.nf"
     config "./nextflow.config"
+    tag "cpu"
 
     test("Params: bismark | rrbs") {
         when {
diff --git a/tests/bismark_run_preseq.nf.test b/tests/bismark_run_preseq.nf.test
index 229e6ea5..eae52753 100644
--- a/tests/bismark_run_preseq.nf.test
+++ b/tests/bismark_run_preseq.nf.test
@@ -3,6 +3,7 @@ nextflow_pipeline {
     name "Test Workflow main.nf"
     script "../main.nf"
     config "./nextflow.config"
+    tag "cpu"
 
     test("Params: bismark | run_preseq") {
         when {
diff --git a/tests/bismark_run_qualimap.nf.test b/tests/bismark_run_qualimap.nf.test
index a224a13b..f8c309b7 100644
--- a/tests/bismark_run_qualimap.nf.test
+++ b/tests/bismark_run_qualimap.nf.test
@@ -3,6 +3,7 @@ nextflow_pipeline {
     name "Test Workflow main.nf"
     script "../main.nf"
     config "./nextflow.config"
+    tag "cpu"
 
     test("Params: bismark | run_qualimap") {
         when {
diff --git a/tests/bismark_save_reference_save_align_intermeds.nf.test b/tests/bismark_save_reference_save_align_intermeds.nf.test
index cc5fc7a0..5238c116 100644
--- a/tests/bismark_save_reference_save_align_intermeds.nf.test
+++ b/tests/bismark_save_reference_save_align_intermeds.nf.test
@@ -3,6 +3,7 @@ nextflow_pipeline {
     name "Test Workflow main.nf"
     script "../main.nf"
     config "./nextflow.config"
+    tag "cpu"
 
     test("Params: bismark | save_reference | save_align_intermeds") {
         when {
diff --git a/tests/bismark_skip_deduplication.nf.test b/tests/bismark_skip_deduplication.nf.test
index 055b77e6..3b6066a6 100644
--- a/tests/bismark_skip_deduplication.nf.test
+++ b/tests/bismark_skip_deduplication.nf.test
@@ -3,6 +3,7 @@ nextflow_pipeline {
     name "Test Workflow main.nf"
     script "../main.nf"
     config "./nextflow.config"
+    tag "cpu"
 
     test("Params: bismark | skip_deduplication") {
         when {
diff --git a/tests/bismark_skip_multiqc.nf.test b/tests/bismark_skip_multiqc.nf.test
index 99cbe91f..3af45a91 100644
--- a/tests/bismark_skip_multiqc.nf.test
+++ b/tests/bismark_skip_multiqc.nf.test
@@ -3,6 +3,7 @@ nextflow_pipeline {
     name "Test Workflow main.nf"
     script "../main.nf"
     config "./nextflow.config"
+    tag "cpu"
 
     test("Params: bismark | skip_multiqc") {
         when {
diff --git a/tests/bismark_skip_trimming.nf.test b/tests/bismark_skip_trimming.nf.test
index 28b415c6..db115373 100644
--- a/tests/bismark_skip_trimming.nf.test
+++ b/tests/bismark_skip_trimming.nf.test
@@ -3,6 +3,7 @@ nextflow_pipeline {
     name "Test Workflow main.nf"
     script "../main.nf"
     config "./nextflow.config"
+    tag "cpu"
 
     test("Params: bismark | skip_trimming") {
         when {
diff --git a/tests/bwameth_rrbs.nf.test b/tests/bwameth_rrbs.nf.test
index cc0fba43..4ad081b4 100644
--- a/tests/bwameth_rrbs.nf.test
+++ b/tests/bwameth_rrbs.nf.test
@@ -3,6 +3,7 @@ nextflow_pipeline {
     name "Test Workflow main.nf"
     script "../main.nf"
     config "./nextflow.config"
+    tag "cpu"
 
     test("Params: bwameth | rrbs") {
         when {
diff --git a/tests/bwameth_save_reference_save_align_intermeds.nf.test b/tests/bwameth_save_reference_save_align_intermeds.nf.test
index 2ce41cd3..6a924304 100644
--- a/tests/bwameth_save_reference_save_align_intermeds.nf.test
+++ b/tests/bwameth_save_reference_save_align_intermeds.nf.test
@@ -3,6 +3,7 @@ nextflow_pipeline {
     name "Test Workflow main.nf"
     script "../main.nf"
     config "./nextflow.config"
+    tag "cpu"
 
     test("Params: bwameth | save_reference | save_align_intermeds") {
         when {
diff --git a/tests/bwameth_skip_deduplication.nf.test b/tests/bwameth_skip_deduplication.nf.test
index 0b208bf4..daa22c57 100644
--- a/tests/bwameth_skip_deduplication.nf.test
+++ b/tests/bwameth_skip_deduplication.nf.test
@@ -3,6 +3,7 @@ nextflow_pipeline {
     name "Test Workflow main.nf"
     script "../main.nf"
     config "./nextflow.config"
+    tag "cpu"
 
     test("Params: bwameth | skip_deduplication") {
         when {
diff --git a/tests/bwameth_skip_trimming.nf.test b/tests/bwameth_skip_trimming.nf.test
index 3b01599d..92c185d0 100644
--- a/tests/bwameth_skip_trimming.nf.test
+++ b/tests/bwameth_skip_trimming.nf.test
@@ -3,6 +3,7 @@ nextflow_pipeline {
     name "Test Workflow main.nf"
     script "../main.nf"
     config "./nextflow.config"
+    tag "cpu"
 
     test("Params: bwameth | skip_trimming") {
         when {
diff --git a/tests/default.nf.test b/tests/default.nf.test
index 6a210a07..7108fe98 100644
--- a/tests/default.nf.test
+++ b/tests/default.nf.test
@@ -3,6 +3,7 @@ nextflow_pipeline {
     name "Test Workflow main.nf"
     script "../main.nf"
     config "./nextflow.config"
+    tag "cpu"
 
     test("Params: default") {
         when {