@Test
void testPrepareSetVariableAssertionNoENV() throws DocumentParseException {

    Element setVariableAssertionElement = createSetVariableAssertion(document, "my-var", "base64Text");
    document.appendChild(setVariableAssertionElement);
    String prefix = "prefix";
    setVariableAssertionBuilder.buildAssertionElement(setVariableAssertionElement, policyBuilderContext);
    Element nameElement = getSingleElement(setVariableAssertionElement, VARIABLE_TO_SET);
    assertEquals("my-var", nameElement.getAttribute(PolicyEntityBuilder.STRING_VALUE));
    Element expressionElement = getSingleElement(setVariableAssertionElement, BASE_64_EXPRESSION);
    String b64 = expressionElement.getAttribute(PolicyEntityBuilder.STRING_VALUE);
    assertEquals(Base64.getEncoder().encodeToString("base64Text".getBytes(StandardCharsets.UTF_8)), b64);
}