1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
package com.seaofnodes.simple;
import com.seaofnodes.simple.evaluator.Evaluator;
import com.seaofnodes.simple.node.StopNode;
import org.junit.Ignore;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
public class Chapter12Test {
@Test
public void testJig() {
Parser parser = new Parser(
"""
return 3.14;
""");
StopNode stop = parser.parse().iterate(false);
assertEquals("return 3.14;", stop.toString());
assertEquals(3.14, Evaluator.evaluate(stop, 0));
}
@Test
public void testFloat() {
Parser parser = new Parser(
"""
return 3.14;
""");
StopNode stop = parser.parse().iterate(false);
assertEquals("return 3.14;", stop.toString());
assertEquals(3.14, Evaluator.evaluate(stop, 0));
}
@Test
public void testSquareRoot() {
Parser parser = new Parser(
"""
flt guess = arg;
while( 1 ) {
flt next = (arg/guess + guess)/2;
if( next == guess ) break;
guess = next;
}
return guess;
""");
StopNode stop = parser.parse().iterate(false);
assertEquals("return Phi(Loop9,(flt)arg,(((ToFloat/Phi_guess)+Phi_guess)/2.0));", stop.toString());
assertEquals(3.0, Evaluator.evaluate(stop, 9));
assertEquals(1.414213562373095, Evaluator.evaluate(stop, 2));
}
@Test
public void testFPOps() {
Parser parser = new Parser(
"""
flt x = arg;
return x+1==x;
""");
StopNode stop = parser.parse().iterate(false);
assertEquals("return ((flt)arg==(ToFloat+1.0));", stop.toString());
assertEquals(0L, Evaluator.evaluate(stop, 1));
}
}
|
