juneau-core/juneau-core-utest/src/test/java/org/apache/juneau/svl/vars/SystemPropertiesVarTest.java

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package org.apache.juneau.svl.vars;

import static org.junit.Assert.*;

import org.apache.juneau.svl.*;
import org.junit.*;

public class SystemPropertiesVarTest {

	//====================================================================================================
	// test - Basic tests
	//====================================================================================================
	@Test
	public void test() throws Exception {
		VarResolver vr = new VarResolverBuilder().vars(SystemPropertiesVar.class).build();

		System.setProperty("SystemPropertiesVar.x", "foo");
		assertEquals("foo", vr.resolve("$S{SystemPropertiesVar.x}"));
		assertEquals("foo", vr.resolve("$S{SystemPropertiesVar.x,bar}"));
		assertEquals("", vr.resolve("$S{SystemPropertiesVar.y}"));
		assertEquals("bar", vr.resolve("$S{SystemPropertiesVar.y,bar}"));
		assertEquals("bar,bar", vr.resolve("$S{SystemPropertiesVar.y,bar,bar}"));
		assertEquals(" bar ", vr.resolve("$S{ SystemPropertiesVar.y , bar }"));
		assertEquals(" bar,bar ", vr.resolve("$S{ SystemPropertiesVar.y , bar,bar }"));
		assertEquals("", vr.resolve("$S{SystemPropertiesVar.y,}"));
	}
}