@Test
public void testStringParameter() throws ServletRequestBindingException {
MockHttpServletRequest request = new MockHttpServletRequest();
request.addParameter("param1", "str");
request.addParameter("paramEmpty", "");
assertEquals("str", ServletRequestUtils.getStringParameter(request, "param1"));
assertEquals("str", ServletRequestUtils.getStringParameter(request, "param1", "string"));
assertEquals("str", ServletRequestUtils.getRequiredStringParameter(request, "param1"));
assertEquals(null, ServletRequestUtils.getStringParameter(request, "param3"));
assertEquals("string", ServletRequestUtils.getStringParameter(request, "param3", "string"));
assertNull(ServletRequestUtils.getStringParameter(request, "param3", null));
try {
ServletRequestUtils.getRequiredStringParameter(request, "param3");
fail("Should have thrown ServletRequestBindingException");
} catch (ServletRequestBindingException ex) {
// expected
}
assertEquals("", ServletRequestUtils.getStringParameter(request, "paramEmpty"));
assertEquals("", ServletRequestUtils.getRequiredStringParameter(request, "paramEmpty"));
}
