<xsd:element name="variable_test" substitutionGroup="oval:test">
<xsd:annotation>
<xsd:documentation>A variable test allows the value of a variable to be compared to a defined value. An example use would be to validate that a variable being passed in from an external source falls within a specified range.</xsd:documentation>
<xsd:appinfo>
<test_name>Variable Test</test_name>
<extends>TestType</extends>
<valid_sections>[notes], item</valid_sections>
<example>
<variable_test id="vct-0" operation="AND" comment="an example variable test" xmlns="http://oval.mitre.org/XMLSchema/oval#independent">
<item variable="var-3" datatype="int" operator="greater than">6</item>
<item variable="var-3" datatype="int" operator="less than" var_ref="var-6" />
</variable_test>
</example>
</xsd:appinfo>
</xsd:annotation>
<xsd:complexType>
<xsd:complexContent>
<xsd:extension base="oval:testType">
<xsd:sequence>
<xsd:element name="item" minOccurs="1" maxOccurs="unbounded">
<xsd:annotation>
<xsd:documentation>An 'item' element defines a specific comparison to perform on a variable. The required 'variable' attribute provides a link to a variable to use. The optional datatype determines the type of data expected as the value of the 'item' element. (the default datatype is 'string') The required 'operator' attribute defines the operator to use for the comparision. The optional var_ref attribute refers the value of the item to a variable element. Note that the comparision should read: '*variable* is *operator* the value of the item'. Also note that it is implied that the datatypes of the two value being compared are the same.</xsd:documentation>
<xsd:appinfo>
<parent_test>Variable Test</parent_test>
<cardinality>1</cardinality>
<content>none</content>
<valid_datatypes>binary, boolean, component, float, int, string, version</valid_datatypes>
<valid_operators>equals, not equal, greater than, less than, greater than or equal, less than or equal, bitwise and, bitwise or, pattern match</valid_operators>
</xsd:appinfo>
</xsd:annotation>
<xsd:complexType>
<xsd:complexContent>
<xsd:extension base="xsd:anyType">
<xsd:attribute name="variable" type="oval:varid" use="required" />
<xsd:attribute name="datatype" type="oval:datatypes" use="optional" default="string" />
<xsd:attribute name="operator" type="oval:operators" use="optional" default="equals" />
<xsd:attribute name="var_ref" type="oval:varid" use="optional" />
</xsd:extension>
</xsd:complexContent>
</xsd:complexType>
</xsd:element>
</xsd:sequence>
<xsd:attribute name="operation" type="oval:operations" use="required" />
</xsd:extension>
</xsd:complexContent>
</xsd:complexType>
</xsd:element>
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XSD Schema Diagram:
