diff --git a/test/functional/tools/inheritance_simple.xml b/test/functional/tools/inheritance_simple.xml
index 218e9653112..e169e7dcae4 100644
--- a/test/functional/tools/inheritance_simple.xml
+++ b/test/functional/tools/inheritance_simple.xml
@@ -1,24 +1,33 @@
-<tool id="inheritance_simple" name="inheritance_simple" version="1.0.0">
-    <description>(demonstrates subtypes are usable for parent format)</description>
-    <command>
-        cat $input1 > $out_file1
-    </command>
-    <inputs>
-        <param name="input1" type="data" label="Copy FASTQ" format="fastq" />
-    </inputs>
-    <outputs>
-        <data name="out_file1" format_source="input1" metadata_source="input1"/>
-    </outputs>
-    <tests>
-        <test>
-            <param name="input1" value="1.fastqsanger" ftype="fastqsanger" />
-            <output name="out_file1" file="1.fastqsanger" ftype="fastqsanger" />
-        </test>
-        <test>
-            <param name="input1" value="1.fastqsolexa" ftype="fastqsolexa" />
-            <output name="out_file1" file="1.fastqsolexa" ftype="fastqsolexa" />
-        </test>
-    </tests>
-    <help>
-    </help>
-</tool>
+<tool id="inheritance_simple" name="inheritance_simple" version="1.0.0">
+    <description>(demonstrates subtypes are usable for parent format)</description>
+    <command>
+        cat '$input1' > '$out_file1'
+    </command>
+    <inputs>
+        <param name="input1" type="data" label="Copy FASTQ" format="fastq" />
+    </inputs>
+    <outputs>
+        <data name="out_file1" format_source="input1" metadata_source="input1"/>
+    </outputs>
+    <tests>
+        <test>
+            <param name="input1" value="1.fastqsanger.gz"/>
+            <!-- should be converted to fastqsanger, so output should be fastqsanger -->
+            <output name="out_file1" ftype="fastqsanger">
+                <assert_contents>
+                    <has_line line="@1831_573_1004/1"/>
+                </assert_contents>
+            </output>
+        </test>
+        <test>
+            <param name="input1" value="1.fastqsanger" ftype="fastqsanger" />
+            <output name="out_file1" file="1.fastqsanger" ftype="fastqsanger" />
+        </test>
+        <test>
+            <param name="input1" value="1.fastqsolexa" ftype="fastqsolexa" />
+            <output name="out_file1" file="1.fastqsolexa" ftype="fastqsolexa" />
+        </test>
+    </tests>
+    <help>
+    </help>
+</tool>