@Test public void testSwitch() throws ExpressionException { assertEquals(523, simpleEval("x=1;y=2;z=3;switch (1) { case 1: x=5; break; case 2: y=6; break; default: z=7 } x*100+y*10+z"), 0); assertEquals(163, simpleEval("x=1;y=2;z=3;switch (2) { case 1: x=5; break; case 2: y=6; break; default: z=7 } x*100+y*10+z"), 0); assertEquals(127, simpleEval("x=1;y=2;z=3;switch (3) { case 1: x=5; break; case 2: y=6; break; default: z=7 } x*100+y*10+z"), 0); assertEquals(567, simpleEval("x=1;y=2;z=3;switch (1) { case 1: x=5; case 2: y=6; default: z=7 } x*100+y*10+z"), 0); assertEquals(167, simpleEval("x=1;y=2;z=3;switch (2) { case 1: x=5; case 2: y=6; default: z=7 } x*100+y*10+z"), 0); assertEquals(127, simpleEval("x=1;y=2;z=3;switch (3) { case 1: x=5; case 2: y=6; default: z=7 } x*100+y*10+z"), 0); }
@Test public void testQuery() throws Exception { assertEquals(1, simpleEval("a=1;b=2;query(3,4,5,a,b); a==3 && b==4"), 0); assertEquals(1, simpleEval("a=1;b=2;queryAbs(3,4,5,a*1,b*1); a==1 && b==2"), 0); assertEquals(1, simpleEval("a=1;b=2;queryRel(3,4,5,(a),(b)); a==300 && b==400"), 0); assertEquals(1, simpleEval("query(3,4,5,3,4)"), 0); assertEquals(1, simpleEval("!query(3,4,5,3,2)"), 0); assertEquals(1, simpleEval("!queryAbs(3,4,5,10,40)"), 0); assertEquals(1, simpleEval("!queryRel(3,4,5,100,200)"), 0); }
@Test public void testFor() throws ExpressionException { assertEquals(5, simpleEval("a=0; for (i=0; i<5; ++i) { ++a; } a"), 0); assertEquals(12345, simpleEval("y=0; for (i=1,5) { y *= 10; y += i; } y"), 0); }
@Test public void testWhile() throws ExpressionException { assertEquals(5, simpleEval("c=5; a=0; while (c > 0) { ++a; --c; } a"), 0); assertEquals(5, simpleEval("c=5; a=0; do { ++a; --c; } while (c > 0); a"), 0); }
@Test public void testEvaluate() throws ExpressionException { // check assertEquals(1 - 2 + 3, simpleEval("1 - 2 + 3"), 0); // check unary ops assertEquals(2 + +4, simpleEval("2 + +4"), 0); assertEquals(2 - -4, simpleEval("2 - -4"), 0); assertEquals(2 * -4, simpleEval("2 * -4"), 0); // check functions assertEquals(sin(5), simpleEval("sin(5)"), 0); assertEquals(atan2(3, 4), simpleEval("atan2(3, 4)"), 0); // check variables assertEquals(8, compile("foo+bar", "foo", "bar").evaluate(5, 3), 0); }
@Test public void testTimeout() throws Exception { try { simpleEval("for(i=0;i<256;i++){for(j=0;j<256;j++){for(k=0;k<256;k++){for(l=0;l<256;l++){ln(pi)}}}}"); fail("Loop was not stopped."); } catch (EvaluationException e) { assertTrue(e.getMessage().contains("Calculations exceeded time limit")); } }
@Test public void testIf() throws ExpressionException { assertEquals(40, simpleEval("if (1) x=4; else y=5; x*10+y;"), 0); assertEquals(5, simpleEval("if (0) x=4; else y=5; x*10+y;"), 0); // test 'dangling else' final Expression expression1 = compile("if (1) if (0) x=4; else y=5;", "x", "y"); expression1.evaluate(1, 2); assertEquals(1, expression1.getVariable("x", false).getValue(), 0); assertEquals(5, expression1.getVariable("y", false).getValue(), 0); // test if the if construct is correctly recognized as a statement final Expression expression2 = compile("if (0) if (1) x=5; y=4;", "x", "y"); expression2.evaluate(1, 2); assertEquals(4, expression2.getVariable("y", false).getValue(), 0); }