1.22.2.4

ExpressionHelpersTest.scala
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			package net.shrine.protocol.query

			import net.shrine.util.ShouldMatchersForJUnit
			import org.junit.Test

			/**
			* @author clint
			* @date Dec 17, 2012
			*/
			final class ExpressionHelpersTest extends ShouldMatchersForJUnit {
			@Test
			def testIs {
			import ExpressionHelpers.is

			is[Expression](And()) should equal(true)
			is[Expression](Term("foo")) should equal(true)

			is[ComposeableExpression[_]](Term("foo")) should be(false)

			is[And](And()) should equal(true)
			is[And](Or()) should equal(false)
			is[Or](And()) should equal(false)
			is[Or](Or()) should equal(true)

			is[String]("ksahdksa") should equal(true)
			is[Int]("sakljd") should equal(false)
			}
			}