diff --git a/subworkflows/nf-core/utils_references/tests/main.function.nf.test b/subworkflows/nf-core/utils_references/tests/main.function.nf.test
deleted file mode 100644
index e211bd2e004..00000000000
--- a/subworkflows/nf-core/utils_references/tests/main.function.nf.test
+++ /dev/null
@@ -1,57 +0,0 @@
-
-nextflow_function {
-
-    name "Test Functions"
-    script "../main.nf"
-
-    test("extract_references_file - without params") {
-
-        function "extract_references_file"
-
-        when {
-            function {
-                """
-                input[0] = Channel.of([[
-                        genome:'GRCh38_chr22',
-                        id:'GRCh38_chr22',
-                        species:'Homo_sapiens',
-                        fasta:'\${params.igenomes_base}/test-datasets/modules/data/genomics/homo_sapiens/genome/genome.fasta',
-                    ], []])
-                input[1] = []
-                input[2] = 'fasta'
-                input[3] = 'https://raw.githubusercontent.com/nf-core/'
-                """
-            }
-        }
-
-        then {
-            assert function.success
-            assert snapshot(function.result).match()
-        }
-    }
-
-    test("extract_references_value - without params") {
-
-        function "extract_references_value"
-
-        when {
-            function {
-                """
-                input[0] = Channel.of([[
-                        genome:'GRCh38_chr22',
-                        id:'GRCh38_chr22',
-                        species:'Homo_sapiens',
-                        fasta:'\${params.igenomes_base}/test-datasets/modules/data/genomics/homo_sapiens/genome/genome.fasta',
-                    ], []])
-                input[1] = []
-                input[2] = 'species'
-                """
-            }
-        }
-
-        then {
-            assert function.success
-            assert snapshot(function.result).match()
-        }
-    }
-}