Fix syntax.

workflow/tests/test_trim_reads.py

@@ -2,16 +2,15 @@
 
 import pytest
 import os
-import gzip
 
 
 def test_trim_reads_singleend():
-    raw_fastq = os.path.dirname(os.path.abspath(__file__)) +
-                '../../test_data/ENCFF833BLU_fastq.gz')
-    trimmed_fastq = os.path.dirname(os.path.abspath(__file__)) +
-                '../output/trimReads/ENCFF833BLU_trimmed.fq.gz')
-    trimmed_fastq_report = os.path.dirname(os.path.abspath(__file__)) +
-                '../output/trimReads/ENCFF833BLU.fastq.gz_trimming_report.txt')
+    raw_fastq = os.path.dirname(os.path.abspath(__file__)) + \
+                '../../test_data/ENCFF833BLU_fastq.gz'
+    trimmed_fastq = os.path.dirname(os.path.abspath(__file__)) + \
+                '../output/trimReads/ENCFF833BLU_trimmed.fq.gz'
+    trimmed_fastq_report = os.path.dirname(os.path.abspath(__file__)) + \
+                '../output/trimReads/ENCFF833BLU.fastq.gz_trimming_report.txt'
     assert os.path.getsize(raw_fastq) != os.path.getsize(trimmed_fastq)
     assert os.path.getsize(trimmed_fastq) == 2512853101
     assert 'Trimming mode: single-end' in open(trimmed_fastq_report).readlines()[4]