diff --git a/lib/galaxy/datatypes/converters/interval_to_bgzip_converter.xml b/lib/galaxy/datatypes/converters/interval_to_bgzip_converter.xml
index 6bc11fb5888..fe1df3514d1 100644
--- a/lib/galaxy/datatypes/converters/interval_to_bgzip_converter.xml
+++ b/lib/galaxy/datatypes/converters/interval_to_bgzip_converter.xml
@@ -40,10 +40,7 @@
     <tests>
         <test>
             <param name="input1" ftype="bed" value="droPer1.bed"/>
-            <output name="output1" ftype="bgzip" value="droPer1.bgzip">
-                <expand macro="assert_size" value="131"/>
-            </output>
-            <output name="output1" ftype="bgzip" decompress="true">
+            <output name="output1" ftype="bgzip" value="droPer1.bgzip" decompress="true">
                 <expand macro="assert_size" value="120"/>
             </output>
             <assert_command>
@@ -52,9 +49,6 @@
         </test>
         <test>
             <param name="input1" ftype="encodepeak" value="encode.broad.peak"/>
-            <output name="output1" ftype="bgzip">
-                <expand macro="assert_size" value="141"/>
-            </output>
             <output name="output1" ftype="bgzip" decompress="true">
                 <expand macro="assert_size" value="143">
                     <has_text_matching expression="^#" negate="true"/>
@@ -66,9 +60,6 @@
         </test>
         <test>
             <param name="input1" ftype="gff" value="gff_filter_by_feature_count_out2.gff"/>
-            <output name="output1" ftype="bgzip">
-                <expand macro="assert_size" value="638"/>
-            </output>
             <output name="output1" ftype="bgzip" value="bgzip_filter_by_feature_count_out2.bgzip" decompress="true">
                 <expand macro="assert_size" value="3824"/>
             </output>
@@ -79,9 +70,6 @@
         </test>
         <test>
             <param name="input1" ftype="interval" value="2.interval"/>
-            <output name="output1" ftype="bgzip">
-                <expand macro="assert_size" value="208"/>
-            </output>
             <output name="output1" ftype="bgzip" value="2.bgzip" decompress="true">
                 <expand macro="assert_size" value="501"/>
             </output>
@@ -91,9 +79,6 @@
         </test>
         <test>
             <param name="input1" ftype="vcf" value="vcf_to_maf_in.vcf"/>
-            <output name="output1" ftype="bgzip">
-                <expand macro="assert_size" value="321"/>
-            </output>
             <output name="output1" ftype="bgzip" decompress="true">
                 <expand macro="assert_size" value="507">
                     <has_n_lines n="5"/>
@@ -106,11 +91,6 @@
         </test>
         <test>
             <param name="input1" ftype="gtf" value="cufflinks_out1.gtf"/>
-            <output name="output1" ftype="bgzip">
-                <assert_contents>
-                    <has_size value="270" delta="10"/>
-                </assert_contents>
-            </output>
             <output name="output1" ftype="bgzip" decompress="true">
                 <assert_contents>
                     <has_size value="887"/>