diff --git a/tests/test_alfa/results/paired_end/synthetic_10_reads_paired_synthetic_10_reads_paired/synthetic_10_reads_paired_synthetic_10_reads_paired.remove_adapters_mate1.fastq b/tests/test_alfa/results/paired_end/synthetic_10_reads_paired_synthetic_10_reads_paired/synthetic_10_reads_paired_synthetic_10_reads_paired.remove_adapters_mate1.fastq
deleted file mode 100644
index 7b462cd7d7809079ebe0f3270bef617956214982..0000000000000000000000000000000000000000
--- a/tests/test_alfa/results/paired_end/synthetic_10_reads_paired_synthetic_10_reads_paired/synthetic_10_reads_paired_synthetic_10_reads_paired.remove_adapters_mate1.fastq
+++ /dev/null
@@ -1,40 +0,0 @@
-@NS500318:863:HY2KYBGXC:1:11101:14671:1067 1:N:0:GAATTCGT+GCCTCTAT
-CCCTAGAGCCTCCACCACCCCGAGATCACATTTCTCACTGCCTTTTGTCTGCCCAGTTTCACCAGAAGTAGGCCT
-+
-/AAAA#AEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEAAEEEA6AA</6AAE/AEAA<6/6<66/6<A<EAA/6/
-@NS500318:863:HY2KYBGXC:1:11101:24439:1068 1:N:0:GAATTCGT+GCCTCTAT
-TGCCAGCATAGTGCTCCTGGACCAGTGATACACCCGGCACCCTGTCCTGGACACGCTGTTGGCCTGGATCTGAGC
-+
-AAAAA#EEAEEEEEAEEEEEEAEEEEEEEE//E//<//6<//6/6//<//AEE//<//<66//////6/////</
-@NS500318:863:HY2KYBGXC:1:11101:14965:1069 1:N:0:GAATTCGT+GCCTCTAT
-CTGTCTTCCATCCTGCGTGGCCGAGGGCCAGGCTTCTCACTGGGCCTCTGCAGGAGGCTGCCATTTGTCCTGCCC
-+
-AA/AA#EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEAA<AA6<6/<6<AEEEE/<A66////////A////E//
-@NS500318:863:HY2KYBGXC:1:11101:21081:1069 1:N:0:GAATTCGT+GCCTCTAT
-GAGCACTGGAGTGGAGTTTTCCTGTGGAGAGGAGCCATGCCTAGAGTGGGATGGGCCATTGTTCATCTTCTGGCC
-+
-AAA/A#EEEEEEEEEEEEEEEEEEEEEEEEEAE/EA<6//6<<<6A//</A//E<EA//6//66/<AA/</</6/
-@NS500318:863:HY2KYBGXC:1:11101:18197:1070 1:N:0:GAATTCGT+GCCTCTAT
-ATCCTGCTACAAAGGTGAAACCCAGGAGAGTGTGGAGTCCAGAGTGTTGCCAGGACCCAGGCACAGGCATTAGTG
-+
-AAAAA#EEAEEAEEEEE/EAEEEEEAA/EEEEEAEEE/666/6/6<<6<AAE//E</6//6/66//A///////A
-@NS500318:863:HY2KYBGXC:1:11101:4614:1071 1:N:0:GAATTCGT+GCCTCTAT
-GAATATGGCTCCATCTTCACGGGCGCCCAGGACCCTGGCCTGCAGAGACGCCCCCGCCACAGGATCCAGAGCAAG
-+
-AAAAA#EAEAEEEEEEEEEEEEEEEEEEEEE/////<6<A/6//A///A///////66</6/////<///</<<<
-@NS500318:863:HY2KYBGXC:1:11101:8467:1073 1:N:0:GAATTCGG+GCCTCTAT
-CCTACAAGATGGGGTACTAACACCACCCCCACCGCCCCCACCACCACCCCCAGCTCCTGAGGTGCTGGCCAGTGC
-+
-AA6AA#EEEEAEE/AEEAEEEEAEEEEEEEEEEEE<<<AA6<A666666/<EAA//66//66/6////6///6//
-@NS500318:863:HY2KYBGXC:1:11101:18960:1076 1:N:0:GAATTCGT+GCCTCTAT
-GCCTGAGATTGATGTTCCATCCTACCTGCCTGACCTGCCCGGCATTGCCAACGACCTCATGTACATTGCCGACCT
-+
-/AAAA#AEAEAEEEEAEEEEEEEEEEEEEEEEEEEEA<66<<6<6//6AE/AE6EA66/6//66//A<6<A////
-@NS500318:863:HY2KYBGXC:1:11101:6851:1076 1:N:0:GAATTCGT+GCCTCTAT
-AGCTCCCAGGGAAGTGGTTGACCCCTCCGGTGGCTGGCCACTCTGCTAGAGTCCATCCGCCAAGCTGGGGGCATC
-+
-AAAAA#EEEEEEEEEAEEEEEEEEE//EEEEEEEEE<6<AAAA<AA</6//E//E/<6/////<////E/////<
-@NS500318:863:HY2KYBGXC:1:11101:14731:1078 1:N:0:GAATTCGT+GCCTCTAT
-CGCCTGCAGGAATATGGCTCCATCTTCACGGGCGCCCAGGACCCTGGCCTGCAGAGACGCCCCCGCCACAGGATC
-+
-AAAAA#EEEEEEEEAEEEEEEEEEEEEEEEEEEEEEEEAE/<666/6/</EEEEAAA<<A66/6/<AEE/6/</6
diff --git a/tests/test_alfa/results/paired_end/synthetic_10_reads_paired_synthetic_10_reads_paired/synthetic_10_reads_paired_synthetic_10_reads_paired.remove_adapters_mate2.fastq b/tests/test_alfa/results/paired_end/synthetic_10_reads_paired_synthetic_10_reads_paired/synthetic_10_reads_paired_synthetic_10_reads_paired.remove_adapters_mate2.fastq
deleted file mode 100644
index 77a2c0cdaa3a50658f184342a9966ff68d8b2a4a..0000000000000000000000000000000000000000
--- a/tests/test_alfa/results/paired_end/synthetic_10_reads_paired_synthetic_10_reads_paired/synthetic_10_reads_paired_synthetic_10_reads_paired.remove_adapters_mate2.fastq
+++ /dev/null
@@ -1,40 +0,0 @@
-@NS500318:863:HY2KYBGXC:1:11101:14671:1067 2:N:0:GAATTCGT+GCCTCTAT
-AGTGGTGCAGCTGCCTGTCAGGAAGAGGCCTACTTCTGGTGAAACTGGGCAGACAAAAGGCAGTGAGAAATGTGA
-+
-/AAAA#AEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEAAEEEA6AA</6AAE/AEAA<6/6<66/6<A<EAA/6/
-@NS500318:863:HY2KYBGXC:1:11101:24439:1068 2:N:0:GAATTCGT+GCCTCTAT
-AAAGGTGGCTTTGACCTCCACCAGGGCTCAGATCCAGGCCAACAGCGTGTCCAGGACAGGGTGCCGGGTGTATCA
-+
-AAAAA#EEAEEEEEAEEEEEEAEEEEEEEE//E//<//6<//6/6//<//AEE//<//<66//////6/////</
-@NS500318:863:HY2KYBGXC:1:11101:14965:1069 2:N:0:GAATTCGT+GCCTCTAT
-TGCTCCGTCTCGCTTCTAAGAAGGTGGGCAGGACAAATGGCAGCCTCCTGCAGAGGCCCAGTGAGAAGCCTGGCC
-+
-AA/AA#EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEAA<AA6<6/<6<AEEEE/<A66////////A////E//
-@NS500318:863:HY2KYBGXC:1:11101:21081:1069 2:N:0:GAATTCGT+GCCTCTAT
-TATTAAGTTACATGCAGACAACAGGGGCCAGAAGATGAACAATGGCCCATCCCACTCTAGGCATGGCTCCTCTCC
-+
-AAA/A#EEEEEEEEEEEEEEEEEEEEEEEEEAE/EA<6//6<<<6A//</A//E<EA//6//66/<AA/</</6/
-@NS500318:863:HY2KYBGXC:1:11101:18197:1070 2:N:0:GAATTCGT+GCCTCTAT
-GGATTCCCCTGTTTTCTCCAACGGGCACTAATGCCTGTGCCTGGGTCCTGGCAACACTCTGGACTCCACACTCTC
-+
-AAAAA#EEAEEAEEEEE/EAEEEEEAA/EEEEEAEEE/666/6/6<<6<AAE//E</6//6/66//A///////A
-@NS500318:863:HY2KYBGXC:1:11101:4614:1071 2:N:0:GAATTCGT+GCCTCTAT
-GGGCCCGCTCGTCCAGGGGGCGGTGCTTGCTCTGGATCCTGTGGCGGGGGCGTCTCTGCAGGCCAGGGTCCTGGG
-+
-AAAAA#EAEAEEEEEEEEEEEEEEEEEEEEE/////<6<A/6//A///A///////66</6/////<///</<<<
-@NS500318:863:HY2KYBGXC:1:11101:8467:1073 2:N:0:GAATTCGG+GCCTCTAT
-CGCGGTTGAGGGTGGGAGTGGGGGTGCACTGGCCAGCACCTCAGGAGCTGGGGGTGGTGGTGGGGGCGGTGGGGG
-+
-AA6AA#EEEEAEE/AEEAEEEEAEEEEEEEEEEEE<<<AA6<A666666/<EAA//66//66/6////6///6//
-@NS500318:863:HY2KYBGXC:1:11101:18960:1076 2:N:0:GAATTCGT+GCCTCTAT
-GGCAGAGGGGGCAATGCCGGGGCCCAGGTCGGCAATGTACATGAGGTCGTTGGCAATGCCGGGCAGGTCAGGCAG
-+
-/AAAA#AEAEAEEEEAEEEEEEEEEEEEEEEEEEEEA<66<<6<6//6AE/AE6EA66/6//66//A<6<A////
-@NS500318:863:HY2KYBGXC:1:11101:6851:1076 2:N:0:GAATTCGT+GCCTCTAT
-TCATGCTGCGCAGCTTGGCCTTGCCGATGCCCCCAGCTTGGCGGATGGACTCTAGCAGAGTGGCCAGCCACCGGA
-+
-AAAAA#EEEEEEEEEAEEEEEEEEE//EEEEEEEEE<6<AAAA<AA</6//E//E/<6/////<////E/////<
-@NS500318:863:HY2KYBGXC:1:11101:14731:1078 2:N:0:GAATTCGT+GCCTCTAT
-CGTCCAGGGGGCGGTGCTTGCTCTGGATCCTGTGGCGGGGGCGTCTCTGCAGGCCAGGGTCCTGGGCGCCCGTGA
-+
-AAAAA#EEEEEEEEAEEEEEEEEEEEEEEEEEEEEEEEAE/<666/6/</EEEEAAA<<A66/6/<AEE/6/</6
diff --git a/tests/test_alfa/results/paired_end/synthetic_10_reads_paired_synthetic_10_reads_paired/synthetic_10_reads_paired_synthetic_10_reads_paired.remove_polya_mate1.fastq b/tests/test_alfa/results/paired_end/synthetic_10_reads_paired_synthetic_10_reads_paired/synthetic_10_reads_paired_synthetic_10_reads_paired.remove_polya_mate1.fastq
deleted file mode 100644
index 7b462cd7d7809079ebe0f3270bef617956214982..0000000000000000000000000000000000000000
--- a/tests/test_alfa/results/paired_end/synthetic_10_reads_paired_synthetic_10_reads_paired/synthetic_10_reads_paired_synthetic_10_reads_paired.remove_polya_mate1.fastq
+++ /dev/null
@@ -1,40 +0,0 @@
-@NS500318:863:HY2KYBGXC:1:11101:14671:1067 1:N:0:GAATTCGT+GCCTCTAT
-CCCTAGAGCCTCCACCACCCCGAGATCACATTTCTCACTGCCTTTTGTCTGCCCAGTTTCACCAGAAGTAGGCCT
-+
-/AAAA#AEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEAAEEEA6AA</6AAE/AEAA<6/6<66/6<A<EAA/6/
-@NS500318:863:HY2KYBGXC:1:11101:24439:1068 1:N:0:GAATTCGT+GCCTCTAT
-TGCCAGCATAGTGCTCCTGGACCAGTGATACACCCGGCACCCTGTCCTGGACACGCTGTTGGCCTGGATCTGAGC
-+
-AAAAA#EEAEEEEEAEEEEEEAEEEEEEEE//E//<//6<//6/6//<//AEE//<//<66//////6/////</
-@NS500318:863:HY2KYBGXC:1:11101:14965:1069 1:N:0:GAATTCGT+GCCTCTAT
-CTGTCTTCCATCCTGCGTGGCCGAGGGCCAGGCTTCTCACTGGGCCTCTGCAGGAGGCTGCCATTTGTCCTGCCC
-+
-AA/AA#EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEAA<AA6<6/<6<AEEEE/<A66////////A////E//
-@NS500318:863:HY2KYBGXC:1:11101:21081:1069 1:N:0:GAATTCGT+GCCTCTAT
-GAGCACTGGAGTGGAGTTTTCCTGTGGAGAGGAGCCATGCCTAGAGTGGGATGGGCCATTGTTCATCTTCTGGCC
-+
-AAA/A#EEEEEEEEEEEEEEEEEEEEEEEEEAE/EA<6//6<<<6A//</A//E<EA//6//66/<AA/</</6/
-@NS500318:863:HY2KYBGXC:1:11101:18197:1070 1:N:0:GAATTCGT+GCCTCTAT
-ATCCTGCTACAAAGGTGAAACCCAGGAGAGTGTGGAGTCCAGAGTGTTGCCAGGACCCAGGCACAGGCATTAGTG
-+
-AAAAA#EEAEEAEEEEE/EAEEEEEAA/EEEEEAEEE/666/6/6<<6<AAE//E</6//6/66//A///////A
-@NS500318:863:HY2KYBGXC:1:11101:4614:1071 1:N:0:GAATTCGT+GCCTCTAT
-GAATATGGCTCCATCTTCACGGGCGCCCAGGACCCTGGCCTGCAGAGACGCCCCCGCCACAGGATCCAGAGCAAG
-+
-AAAAA#EAEAEEEEEEEEEEEEEEEEEEEEE/////<6<A/6//A///A///////66</6/////<///</<<<
-@NS500318:863:HY2KYBGXC:1:11101:8467:1073 1:N:0:GAATTCGG+GCCTCTAT
-CCTACAAGATGGGGTACTAACACCACCCCCACCGCCCCCACCACCACCCCCAGCTCCTGAGGTGCTGGCCAGTGC
-+
-AA6AA#EEEEAEE/AEEAEEEEAEEEEEEEEEEEE<<<AA6<A666666/<EAA//66//66/6////6///6//
-@NS500318:863:HY2KYBGXC:1:11101:18960:1076 1:N:0:GAATTCGT+GCCTCTAT
-GCCTGAGATTGATGTTCCATCCTACCTGCCTGACCTGCCCGGCATTGCCAACGACCTCATGTACATTGCCGACCT
-+
-/AAAA#AEAEAEEEEAEEEEEEEEEEEEEEEEEEEEA<66<<6<6//6AE/AE6EA66/6//66//A<6<A////
-@NS500318:863:HY2KYBGXC:1:11101:6851:1076 1:N:0:GAATTCGT+GCCTCTAT
-AGCTCCCAGGGAAGTGGTTGACCCCTCCGGTGGCTGGCCACTCTGCTAGAGTCCATCCGCCAAGCTGGGGGCATC
-+
-AAAAA#EEEEEEEEEAEEEEEEEEE//EEEEEEEEE<6<AAAA<AA</6//E//E/<6/////<////E/////<
-@NS500318:863:HY2KYBGXC:1:11101:14731:1078 1:N:0:GAATTCGT+GCCTCTAT
-CGCCTGCAGGAATATGGCTCCATCTTCACGGGCGCCCAGGACCCTGGCCTGCAGAGACGCCCCCGCCACAGGATC
-+
-AAAAA#EEEEEEEEAEEEEEEEEEEEEEEEEEEEEEEEAE/<666/6/</EEEEAAA<<A66/6/<AEE/6/</6
diff --git a/tests/test_alfa/results/paired_end/synthetic_10_reads_paired_synthetic_10_reads_paired/synthetic_10_reads_paired_synthetic_10_reads_paired.remove_polya_mate2.fastq b/tests/test_alfa/results/paired_end/synthetic_10_reads_paired_synthetic_10_reads_paired/synthetic_10_reads_paired_synthetic_10_reads_paired.remove_polya_mate2.fastq
deleted file mode 100644
index 77a2c0cdaa3a50658f184342a9966ff68d8b2a4a..0000000000000000000000000000000000000000
--- a/tests/test_alfa/results/paired_end/synthetic_10_reads_paired_synthetic_10_reads_paired/synthetic_10_reads_paired_synthetic_10_reads_paired.remove_polya_mate2.fastq
+++ /dev/null
@@ -1,40 +0,0 @@
-@NS500318:863:HY2KYBGXC:1:11101:14671:1067 2:N:0:GAATTCGT+GCCTCTAT
-AGTGGTGCAGCTGCCTGTCAGGAAGAGGCCTACTTCTGGTGAAACTGGGCAGACAAAAGGCAGTGAGAAATGTGA
-+
-/AAAA#AEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEAAEEEA6AA</6AAE/AEAA<6/6<66/6<A<EAA/6/
-@NS500318:863:HY2KYBGXC:1:11101:24439:1068 2:N:0:GAATTCGT+GCCTCTAT
-AAAGGTGGCTTTGACCTCCACCAGGGCTCAGATCCAGGCCAACAGCGTGTCCAGGACAGGGTGCCGGGTGTATCA
-+
-AAAAA#EEAEEEEEAEEEEEEAEEEEEEEE//E//<//6<//6/6//<//AEE//<//<66//////6/////</
-@NS500318:863:HY2KYBGXC:1:11101:14965:1069 2:N:0:GAATTCGT+GCCTCTAT
-TGCTCCGTCTCGCTTCTAAGAAGGTGGGCAGGACAAATGGCAGCCTCCTGCAGAGGCCCAGTGAGAAGCCTGGCC
-+
-AA/AA#EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEAA<AA6<6/<6<AEEEE/<A66////////A////E//
-@NS500318:863:HY2KYBGXC:1:11101:21081:1069 2:N:0:GAATTCGT+GCCTCTAT
-TATTAAGTTACATGCAGACAACAGGGGCCAGAAGATGAACAATGGCCCATCCCACTCTAGGCATGGCTCCTCTCC
-+
-AAA/A#EEEEEEEEEEEEEEEEEEEEEEEEEAE/EA<6//6<<<6A//</A//E<EA//6//66/<AA/</</6/
-@NS500318:863:HY2KYBGXC:1:11101:18197:1070 2:N:0:GAATTCGT+GCCTCTAT
-GGATTCCCCTGTTTTCTCCAACGGGCACTAATGCCTGTGCCTGGGTCCTGGCAACACTCTGGACTCCACACTCTC
-+
-AAAAA#EEAEEAEEEEE/EAEEEEEAA/EEEEEAEEE/666/6/6<<6<AAE//E</6//6/66//A///////A
-@NS500318:863:HY2KYBGXC:1:11101:4614:1071 2:N:0:GAATTCGT+GCCTCTAT
-GGGCCCGCTCGTCCAGGGGGCGGTGCTTGCTCTGGATCCTGTGGCGGGGGCGTCTCTGCAGGCCAGGGTCCTGGG
-+
-AAAAA#EAEAEEEEEEEEEEEEEEEEEEEEE/////<6<A/6//A///A///////66</6/////<///</<<<
-@NS500318:863:HY2KYBGXC:1:11101:8467:1073 2:N:0:GAATTCGG+GCCTCTAT
-CGCGGTTGAGGGTGGGAGTGGGGGTGCACTGGCCAGCACCTCAGGAGCTGGGGGTGGTGGTGGGGGCGGTGGGGG
-+
-AA6AA#EEEEAEE/AEEAEEEEAEEEEEEEEEEEE<<<AA6<A666666/<EAA//66//66/6////6///6//
-@NS500318:863:HY2KYBGXC:1:11101:18960:1076 2:N:0:GAATTCGT+GCCTCTAT
-GGCAGAGGGGGCAATGCCGGGGCCCAGGTCGGCAATGTACATGAGGTCGTTGGCAATGCCGGGCAGGTCAGGCAG
-+
-/AAAA#AEAEAEEEEAEEEEEEEEEEEEEEEEEEEEA<66<<6<6//6AE/AE6EA66/6//66//A<6<A////
-@NS500318:863:HY2KYBGXC:1:11101:6851:1076 2:N:0:GAATTCGT+GCCTCTAT
-TCATGCTGCGCAGCTTGGCCTTGCCGATGCCCCCAGCTTGGCGGATGGACTCTAGCAGAGTGGCCAGCCACCGGA
-+
-AAAAA#EEEEEEEEEAEEEEEEEEE//EEEEEEEEE<6<AAAA<AA</6//E//E/<6/////<////E/////<
-@NS500318:863:HY2KYBGXC:1:11101:14731:1078 2:N:0:GAATTCGT+GCCTCTAT
-CGTCCAGGGGGCGGTGCTTGCTCTGGATCCTGTGGCGGGGGCGTCTCTGCAGGCCAGGGTCCTGGGCGCCCGTGA
-+
-AAAAA#EEEEEEEEAEEEEEEEEEEEEEEEEEEEEEEEAE/<666/6/</EEEEAAA<<A66/6/<AEE/6/</6
diff --git a/tests/test_alfa/results/single_end/synthetic_10_reads_mate_1_synthetic_10_reads_mate_1/synthetic_10_reads_mate_1_synthetic_10_reads_mate_1.remove_adapters_mate1.fastq b/tests/test_alfa/results/single_end/synthetic_10_reads_mate_1_synthetic_10_reads_mate_1/synthetic_10_reads_mate_1_synthetic_10_reads_mate_1.remove_adapters_mate1.fastq
deleted file mode 100644
index 52dc81b736b5b0e5a3518ad17c38c17af8fc0b10..0000000000000000000000000000000000000000
--- a/tests/test_alfa/results/single_end/synthetic_10_reads_mate_1_synthetic_10_reads_mate_1/synthetic_10_reads_mate_1_synthetic_10_reads_mate_1.remove_adapters_mate1.fastq
+++ /dev/null
@@ -1,40 +0,0 @@
-@NS500318:863:HY2KYBGXC:1:11101:14671:1067 1:N:0:GAATTCGT+GCCTCTAT
-CCCTAGAGCCTCCACCACCCCGAGATCACATTTCTCACTGCCTTTTGTCTGCCCAGTTTCACCAGAAGTAGGCCT
-+
-/AAAA#AEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEAAEEEA6AA</6AAE/AEAA<6/6<66/6<A<EAA/6/
-@NS500318:863:HY2KYBGXC:1:11101:24439:1068 1:N:0:GAATTCGT+GCCTCTAT
-TGCCAGCATAGTGCTCCTGGACCAGTGATACACCCGGCACCCTGTCCTGGACACGCTGTTGGCCTGGATCTGAGC
-+
-AAAAA#EEAEEEEEAEEEEEEAEEEEEEEE//E//<//6<//6/6//<//AEE//<//<66//////6/////</
-@NS500318:863:HY2KYBGXC:1:11101:14965:1069 1:N:0:GAATTCGT+GCCTCTAT
-CTGTCTTCCATCCTGCGTGGCCGAGGGCCAGGCTTCTCACTGGGCCTCTGCAGGAGGCTGCCATTTGTCCTGCCC
-+
-AA/AA#EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEAA<AA6<6/<6<AEEEE/<A66////////A////E//
-@NS500318:863:HY2KYBGXC:1:11101:21081:1069 1:N:0:GAATTCGT+GCCTCTAT
-GAGCACTGGAGTGGAGTTTTCCTGTGGAGAGGAGCCATGCCTAGAGTGGGATGGGCCATTGTTCATCTTCTGGCC
-+
-AAA/A#EEEEEEEEEEEEEEEEEEEEEEEEEAE/EA<6//6<<<6A//</A//E<EA//6//66/<AA/</</6/
-@NS500318:863:HY2KYBGXC:1:11101:18197:1070 1:N:0:GAATTCGT+GCCTCTAT
-ATCCTGCTACAAAGGTGAAACCCAGGAGAGTGTGGAGTCCAGAGTGTTGCCAGGACCCAGGCACAGGCATTAGTG
-+
-AAAAA#EEAEEAEEEEE/EAEEEEEAA/EEEEEAEEE/666/6/6<<6<AAE//E</6//6/66//A///////A
-@NS500318:863:HY2KYBGXC:1:11101:4614:1071 1:N:0:GAATTCGT+GCCTCTAT
-GAATATGGCTCCATCTTCACGGGCGCCCAGGACCCTGGCCTGCAGAGACGCCCCCGCCACAGGATCCAGAGC
-+
-AAAAA#EAEAEEEEEEEEEEEEEEEEEEEEE/////<6<A/6//A///A///////66</6/////<///</
-@NS500318:863:HY2KYBGXC:1:11101:8467:1073 1:N:0:GAATTCGG+GCCTCTAT
-CCTACAAGATGGGGTACTAACACCACCCCCACCGCCCCCACCACCACCCCCAGCTCCTGAGGTGCTGGCCAGTGC
-+
-AA6AA#EEEEAEE/AEEAEEEEAEEEEEEEEEEEE<<<AA6<A666666/<EAA//66//66/6////6///6//
-@NS500318:863:HY2KYBGXC:1:11101:18960:1076 1:N:0:GAATTCGT+GCCTCTAT
-GCCTGAGATTGATGTTCCATCCTACCTGCCTGACCTGCCCGGCATTGCCAACGACCTCATGTACATTGCCGACCT
-+
-/AAAA#AEAEAEEEEAEEEEEEEEEEEEEEEEEEEEA<66<<6<6//6AE/AE6EA66/6//66//A<6<A////
-@NS500318:863:HY2KYBGXC:1:11101:6851:1076 1:N:0:GAATTCGT+GCCTCTAT
-AGCTCCCAGGGAAGTGGTTGACCCCTCCGGTGGCTGGCCACTCTGCTAGAGTCCATCCGCCAAGCTGGGGGCATC
-+
-AAAAA#EEEEEEEEEAEEEEEEEEE//EEEEEEEEE<6<AAAA<AA</6//E//E/<6/////<////E/////<
-@NS500318:863:HY2KYBGXC:1:11101:14731:1078 1:N:0:GAATTCGT+GCCTCTAT
-CGCCTGCAGGAATATGGCTCCATCTTCACGGGCGCCCAGGACCCTGGCCTGCAGAGACGCCCCCGCCACAGGATC
-+
-AAAAA#EEEEEEEEAEEEEEEEEEEEEEEEEEEEEEEEAE/<666/6/</EEEEAAA<<A66/6/<AEE/6/</6
diff --git a/tests/test_alfa/results/single_end/synthetic_10_reads_mate_1_synthetic_10_reads_mate_1/synthetic_10_reads_mate_1_synthetic_10_reads_mate_1.remove_polya_mate1.fastq b/tests/test_alfa/results/single_end/synthetic_10_reads_mate_1_synthetic_10_reads_mate_1/synthetic_10_reads_mate_1_synthetic_10_reads_mate_1.remove_polya_mate1.fastq
deleted file mode 100644
index 52dc81b736b5b0e5a3518ad17c38c17af8fc0b10..0000000000000000000000000000000000000000
--- a/tests/test_alfa/results/single_end/synthetic_10_reads_mate_1_synthetic_10_reads_mate_1/synthetic_10_reads_mate_1_synthetic_10_reads_mate_1.remove_polya_mate1.fastq
+++ /dev/null
@@ -1,40 +0,0 @@
-@NS500318:863:HY2KYBGXC:1:11101:14671:1067 1:N:0:GAATTCGT+GCCTCTAT
-CCCTAGAGCCTCCACCACCCCGAGATCACATTTCTCACTGCCTTTTGTCTGCCCAGTTTCACCAGAAGTAGGCCT
-+
-/AAAA#AEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEAAEEEA6AA</6AAE/AEAA<6/6<66/6<A<EAA/6/
-@NS500318:863:HY2KYBGXC:1:11101:24439:1068 1:N:0:GAATTCGT+GCCTCTAT
-TGCCAGCATAGTGCTCCTGGACCAGTGATACACCCGGCACCCTGTCCTGGACACGCTGTTGGCCTGGATCTGAGC
-+
-AAAAA#EEAEEEEEAEEEEEEAEEEEEEEE//E//<//6<//6/6//<//AEE//<//<66//////6/////</
-@NS500318:863:HY2KYBGXC:1:11101:14965:1069 1:N:0:GAATTCGT+GCCTCTAT
-CTGTCTTCCATCCTGCGTGGCCGAGGGCCAGGCTTCTCACTGGGCCTCTGCAGGAGGCTGCCATTTGTCCTGCCC
-+
-AA/AA#EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEAA<AA6<6/<6<AEEEE/<A66////////A////E//
-@NS500318:863:HY2KYBGXC:1:11101:21081:1069 1:N:0:GAATTCGT+GCCTCTAT
-GAGCACTGGAGTGGAGTTTTCCTGTGGAGAGGAGCCATGCCTAGAGTGGGATGGGCCATTGTTCATCTTCTGGCC
-+
-AAA/A#EEEEEEEEEEEEEEEEEEEEEEEEEAE/EA<6//6<<<6A//</A//E<EA//6//66/<AA/</</6/
-@NS500318:863:HY2KYBGXC:1:11101:18197:1070 1:N:0:GAATTCGT+GCCTCTAT
-ATCCTGCTACAAAGGTGAAACCCAGGAGAGTGTGGAGTCCAGAGTGTTGCCAGGACCCAGGCACAGGCATTAGTG
-+
-AAAAA#EEAEEAEEEEE/EAEEEEEAA/EEEEEAEEE/666/6/6<<6<AAE//E</6//6/66//A///////A
-@NS500318:863:HY2KYBGXC:1:11101:4614:1071 1:N:0:GAATTCGT+GCCTCTAT
-GAATATGGCTCCATCTTCACGGGCGCCCAGGACCCTGGCCTGCAGAGACGCCCCCGCCACAGGATCCAGAGC
-+
-AAAAA#EAEAEEEEEEEEEEEEEEEEEEEEE/////<6<A/6//A///A///////66</6/////<///</
-@NS500318:863:HY2KYBGXC:1:11101:8467:1073 1:N:0:GAATTCGG+GCCTCTAT
-CCTACAAGATGGGGTACTAACACCACCCCCACCGCCCCCACCACCACCCCCAGCTCCTGAGGTGCTGGCCAGTGC
-+
-AA6AA#EEEEAEE/AEEAEEEEAEEEEEEEEEEEE<<<AA6<A666666/<EAA//66//66/6////6///6//
-@NS500318:863:HY2KYBGXC:1:11101:18960:1076 1:N:0:GAATTCGT+GCCTCTAT
-GCCTGAGATTGATGTTCCATCCTACCTGCCTGACCTGCCCGGCATTGCCAACGACCTCATGTACATTGCCGACCT
-+
-/AAAA#AEAEAEEEEAEEEEEEEEEEEEEEEEEEEEA<66<<6<6//6AE/AE6EA66/6//66//A<6<A////
-@NS500318:863:HY2KYBGXC:1:11101:6851:1076 1:N:0:GAATTCGT+GCCTCTAT
-AGCTCCCAGGGAAGTGGTTGACCCCTCCGGTGGCTGGCCACTCTGCTAGAGTCCATCCGCCAAGCTGGGGGCATC
-+
-AAAAA#EEEEEEEEEAEEEEEEEEE//EEEEEEEEE<6<AAAA<AA</6//E//E/<6/////<////E/////<
-@NS500318:863:HY2KYBGXC:1:11101:14731:1078 1:N:0:GAATTCGT+GCCTCTAT
-CGCCTGCAGGAATATGGCTCCATCTTCACGGGCGCCCAGGACCCTGGCCTGCAGAGACGCCCCCGCCACAGGATC
-+
-AAAAA#EEEEEEEEAEEEEEEEEEEEEEEEEEEEEEEEAE/<666/6/</EEEEAAA<<A66/6/<AEE/6/</6