galaxy/test/functional/tools/validation_value_in_datatable.xml

<tool id="validation_value_in_datatable" name="validation_value_in_datatable" profile="21.09" version="0.1">
    <command><![CDATA[
echo 'Hello World' > out1
    ]]></command>
    <inputs>
        <!-- test value_in_data_table validator with and without negation-->
        <param name="value" type="text">
            <validator type="value_in_data_table" table_name="test_fasta_indexes" metadata_column="1"/>
        </param>
        <param name="value_neg" type="text">
            <validator type="value_in_data_table" table_name="test_fasta_indexes" metadata_column="1" negate="true"/>
        </param>
        <!-- also test deprecated value_not_in_data_table validator-->
         <param name="value_neg_deprecated" type="text">
            <validator type="value_not_in_data_table" table_name="test_fasta_indexes" metadata_column="1"/>
        </param>
    </inputs>
    <outputs>
        <data name="out_file1" format="txt" from_work_dir="out1"/>
    </outputs>
    <tests>
        <test expect_failure="false">
            <param name="value" value="hg19"/>
            <param name="value_neg" value="wrongvalue"/>
            <param name="value_neg_deprecated" value="wrongvalue"/>
        </test>
        <test expect_failure="true">
            <param name="value" value="wrongvalue"/>
            <param name="value_neg" value="hg19"/>
            <param name="value_deprecated" value="hg19"/>
        </test>
    </tests>
    <help>
    </help>
</tool>