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Aug 28, 2018
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Add P tests #360

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159 changes: 159 additions & 0 deletions core/src/test/java/fj/PTest.java
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package fj;

import org.junit.Test;

import static fj.Function.identity;
import static org.hamcrest.core.Is.is;
import static org.junit.Assert.assertThat;

public class PTest {
@Test
public void testPF(){
final F<Integer, P1<Integer>> p1f = P.p1();
final P1<Integer> p1 = p1f.f(1);
F<Integer, F<Integer, P2<Integer, Integer>>> p2f = P.p2();
final P2<Integer, Integer> p2 = p2f.f(1).f(2);
assertThat(P2.<Integer,Integer>__1().f(p2), is(P1.<Integer>__1().f(p1)));
final F<Integer, F<Integer, F<Integer, P3<Integer, Integer, Integer>>>> p3f = P.p3();
final P3<Integer, Integer, Integer> p3 = p3f.f(1).f(2).f(3);
assertThat(P3.<Integer,Integer, Integer>__1().f(p3), is(P2.<Integer,Integer>__1().f(p2)));
assertThat(P3.<Integer,Integer, Integer>__2().f(p3), is(P2.<Integer,Integer>__2().f(p2)));
final F<Integer, F<Integer, F<Integer, F<Integer, P4<Integer, Integer, Integer, Integer>>>>> p4f = P.p4();
final P4<Integer, Integer, Integer, Integer> p4 = p4f.f(1).f(2).f(3).f(4);
assertThat(P4.<Integer,Integer,Integer,Integer>__1().f(p4), is(P3.<Integer,Integer,Integer>__1().f(p3)));
assertThat(P4.<Integer,Integer,Integer,Integer>__2().f(p4), is(P3.<Integer,Integer,Integer>__2().f(p3)));
assertThat(P4.<Integer,Integer,Integer,Integer>__3().f(p4), is(P3.<Integer,Integer,Integer>__3().f(p3)));
final F<Integer, F<Integer, F<Integer, F<Integer, F<Integer, P5<Integer, Integer, Integer, Integer, Integer>>>>>> p5f = P.p5();
final P5<Integer, Integer, Integer, Integer, Integer> p5 = p5f.f(1).f(2).f(3).f(4).f(5);
assertThat(P5.<Integer,Integer,Integer,Integer,Integer>__1().f(p5), is(P4.<Integer,Integer,Integer,Integer>__1().f(p4)));
assertThat(P5.<Integer,Integer,Integer,Integer,Integer>__2().f(p5), is(P4.<Integer,Integer,Integer,Integer>__2().f(p4)));
assertThat(P5.<Integer,Integer,Integer,Integer,Integer>__3().f(p5), is(P4.<Integer,Integer,Integer,Integer>__3().f(p4)));
assertThat(P5.<Integer,Integer,Integer,Integer,Integer>__4().f(p5), is(P4.<Integer,Integer,Integer,Integer>__4().f(p4)));
final F<Integer, F<Integer, F<Integer, F<Integer, F<Integer, F<Integer,
P6<Integer, Integer, Integer, Integer, Integer, Integer>>>>>>> p6f = P.p6();
final P6<Integer, Integer, Integer, Integer, Integer, Integer> p6 = p6f.f(1).f(2).f(3).f(4).f(5).f(6);
assertThat(P6.<Integer,Integer,Integer,Integer,Integer,Integer>__1().f(p6),
is(P5.<Integer,Integer,Integer,Integer,Integer>__1().f(p5)));
assertThat(P6.<Integer,Integer,Integer,Integer,Integer,Integer>__2().f(p6),
is(P5.<Integer,Integer,Integer,Integer,Integer>__2().f(p5)));
assertThat(P6.<Integer,Integer,Integer,Integer,Integer,Integer>__3().f(p6),
is(P5.<Integer,Integer,Integer,Integer,Integer>__3().f(p5)));
assertThat(P6.<Integer,Integer,Integer,Integer,Integer,Integer>__4().f(p6),
is(P5.<Integer,Integer,Integer,Integer,Integer>__4().f(p5)));
assertThat(P6.<Integer,Integer,Integer,Integer,Integer,Integer>__5().f(p6),
is(P5.<Integer,Integer,Integer,Integer,Integer>__5().f(p5)));
final F<Integer, F<Integer, F<Integer, F<Integer, F<Integer, F<Integer, F<Integer,
P7<Integer, Integer, Integer, Integer, Integer, Integer, Integer>>>>>>>> p7f = P.p7();
final P7<Integer, Integer, Integer, Integer, Integer, Integer, Integer> p7 =
p7f.f(1).f(2).f(3).f(4).f(5).f(6).f(7);
assertThat(P7.<Integer,Integer,Integer,Integer,Integer,Integer,Integer>__1().f(p7),
is(P6.<Integer,Integer,Integer,Integer,Integer,Integer>__1().f(p6)));
assertThat(P7.<Integer,Integer,Integer,Integer,Integer,Integer,Integer>__2().f(p7),
is(P6.<Integer,Integer,Integer,Integer,Integer,Integer>__2().f(p6)));
assertThat(P7.<Integer,Integer,Integer,Integer,Integer,Integer,Integer>__3().f(p7),
is(P6.<Integer,Integer,Integer,Integer,Integer,Integer>__3().f(p6)));
assertThat(P7.<Integer,Integer,Integer,Integer,Integer,Integer,Integer>__4().f(p7),
is(P6.<Integer,Integer,Integer,Integer,Integer,Integer>__4().f(p6)));
assertThat(P7.<Integer,Integer,Integer,Integer,Integer,Integer,Integer>__5().f(p7),
is(P6.<Integer,Integer,Integer,Integer,Integer,Integer>__5().f(p6)));
assertThat(P7.<Integer,Integer,Integer,Integer,Integer,Integer,Integer>__6().f(p7),
is(P6.<Integer,Integer,Integer,Integer,Integer,Integer>__6().f(p6)));
final F<Integer, F<Integer, F<Integer, F<Integer, F<Integer, F<Integer,
F<Integer, F<Integer, P8<Integer, Integer, Integer, Integer, Integer, Integer, Integer, Integer>>>>>>>>> p8f = P.p8();
final P8<Integer, Integer, Integer, Integer, Integer, Integer, Integer, Integer> p8 =
p8f.f(1).f(2).f(3).f(4).f(5).f(6).f(7).f(8);
assertThat(P8.<Integer,Integer,Integer,Integer,Integer,Integer,Integer,Integer>__1().f(p8),
is(P7.<Integer,Integer,Integer,Integer,Integer,Integer,Integer>__1().f(p7)));
assertThat(P8.<Integer,Integer,Integer,Integer,Integer,Integer,Integer,Integer>__2().f(p8),
is(P7.<Integer,Integer,Integer,Integer,Integer,Integer,Integer>__2().f(p7)));
assertThat(P8.<Integer,Integer,Integer,Integer,Integer,Integer,Integer,Integer>__3().f(p8),
is(P7.<Integer,Integer,Integer,Integer,Integer,Integer,Integer>__3().f(p7)));
assertThat(P8.<Integer,Integer,Integer,Integer,Integer,Integer,Integer,Integer>__4().f(p8),
is(P7.<Integer,Integer,Integer,Integer,Integer,Integer,Integer>__4().f(p7)));
assertThat(P8.<Integer,Integer,Integer,Integer,Integer,Integer,Integer,Integer>__5().f(p8),
is(P7.<Integer,Integer,Integer,Integer,Integer,Integer,Integer>__5().f(p7)));
assertThat(P8.<Integer,Integer,Integer,Integer,Integer,Integer,Integer,Integer>__6().f(p8),
is(P7.<Integer,Integer,Integer,Integer,Integer,Integer,Integer>__6().f(p7)));
assertThat(P8.<Integer,Integer,Integer,Integer,Integer,Integer,Integer,Integer>__7().f(p8),
is(P7.<Integer,Integer,Integer,Integer,Integer,Integer,Integer>__7().f(p7)));
assertThat(P8.<Integer,Integer,Integer,Integer,Integer,Integer,Integer,Integer>__8().f(p8), is(8));
}

@Test
public void testPProject1() {
final P1<Integer> p1 = P.p(1);
assertThat(p1.map(identity()), is(p1));
}

@Test
public void testPProject2() {
final P2<Integer, Integer> p2 = P.p(1, 2);
assertThat(p2.map1(identity()), is(p2));
assertThat(p2.map2(identity()), is(p2));
}

@Test
public void testPProject3() {
final P3<Integer, Integer, Integer> p3 = P.p(1, 2, 3);
assertThat(p3.map1(identity()), is(p3));
assertThat(p3.map2(identity()), is(p3));
assertThat(p3.map3(identity()), is(p3));
}

@Test
public void testPProject4() {
final P4<Integer, Integer, Integer, Integer> p4 = P.p(1, 2, 3, 4);
assertThat(p4.map1(identity()), is(p4));
assertThat(p4.map2(identity()), is(p4));
assertThat(p4.map3(identity()), is(p4));
assertThat(p4.map4(identity()), is(p4));
}

@Test
public void testPProject5() {
final P5<Integer, Integer, Integer, Integer, Integer> p5 = P.p(1, 2, 3, 4, 5);
assertThat(p5.map1(identity()), is(p5));
assertThat(p5.map2(identity()), is(p5));
assertThat(p5.map3(identity()), is(p5));
assertThat(p5.map4(identity()), is(p5));
assertThat(p5.map5(identity()), is(p5));
}

@Test
public void testPProject6() {
final P6<Integer, Integer, Integer, Integer, Integer, Integer> p6 = P.p(1, 2, 3, 4, 5, 6);
assertThat(p6.map1(identity()), is(p6));
assertThat(p6.map2(identity()), is(p6));
assertThat(p6.map3(identity()), is(p6));
assertThat(p6.map4(identity()), is(p6));
assertThat(p6.map5(identity()), is(p6));
assertThat(p6.map6(identity()), is(p6));
}

@Test
public void testPProject7() {
final P7<Integer, Integer, Integer, Integer, Integer, Integer, Integer> p7 =
P.p(1, 2, 3, 4, 5, 6, 7);
assertThat(p7.map1(identity()), is(p7));
assertThat(p7.map2(identity()), is(p7));
assertThat(p7.map3(identity()), is(p7));
assertThat(p7.map4(identity()), is(p7));
assertThat(p7.map5(identity()), is(p7));
assertThat(p7.map6(identity()), is(p7));
assertThat(p7.map7(identity()), is(p7));
}

@Test
public void testPProject8() {
final P8<Integer, Integer, Integer, Integer, Integer, Integer, Integer, Integer> p8 =
P.p(1, 2, 3, 4, 5, 6, 7, 8);
assertThat(p8.map1(identity()), is(p8));
assertThat(p8.map2(identity()), is(p8));
assertThat(p8.map3(identity()), is(p8));
assertThat(p8.map4(identity()), is(p8));
assertThat(p8.map5(identity()), is(p8));
assertThat(p8.map6(identity()), is(p8));
assertThat(p8.map7(identity()), is(p8));
assertThat(p8.map8(identity()), is(p8));
}
}