nus/Lab4/Test5.java
2022-11-08 18:03:39 +08:00

48 lines
1.9 KiB
Java

class Test5 {
public static void main(String[] args) {
CS2030STest we = new CS2030STest();
class Incr implements Immutator<Integer,Integer> {
public Integer invoke(Integer t1) {
return t1 + 1;
}
}
class Length implements Immutator<Integer,String> {
public Integer invoke(String t1) {
return t1.length();
}
}
we.prefix("jshell> class Incr implements Immutator<Integer,Integer> {");
we.prefix(" ...> public Integer invoke(Integer t1) {");
we.prefix(" ...> return t1 + 1;");
we.prefix(" ...> }");
we.prefix(" ...> }");
we.prefix("jshell> class Length implements Immutator<Integer,String> {");
we.prefix(" ...> public Integer invoke(String t1) {");
we.prefix(" ...> return t1.length();");
we.prefix(" ...> }");
we.prefix(" ...> }");
we.expect("Probably.just(17).check(new IsModEq(3,2)) // 17 % 3 is equal to 2",
Probably.just(17).check(new IsModEq(3,2)).toString(),
"<17>");
we.expect("Probably.just(18).check(new IsModEq(3,2)) // 18 % 3 is not equal to 2",
Probably.just(18).check(new IsModEq(3,2)).toString(),
"<>");
we.expect("Probably.just(16).transform(new Incr()).check(new IsModEq(3,2)) // 17 % 3 is not equal to 2",
Probably.just(16).transform(new Incr()).check(new IsModEq(3,2)).toString(),
"<17>");
we.expect("Probably.just(\"string\").transform(new Length()).check(new IsModEq(3,2))",
Probably.just("string").transform(new Length()).transform(new Incr()).transform(new Incr()).check(new IsModEq(3,2)).toString(),
"<8>");
we.expect("Probably.<Integer>just(null).check(new IsModEq(0,2))",
Probably.<Integer>just(null).check(new IsModEq(0,2)).toString(),
"<>");
we.showStat();
we.print();
}
}