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Refactor Javaslang samples (#1469)

This commit is contained in:
Grzegorz Piwowarek 2017-03-21 16:49:29 +01:00 committed by GitHub
parent 60bbd6de56
commit faea5eb510
2 changed files with 37 additions and 35 deletions
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2
javaslang/pom.xml
View File

@ -38,7 +38,7 @@
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<version>3.5.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>

70
javaslang/src/test/java/com/baeldung/javaslang/PropertyBasedTest.java
View File

@ -1,6 +1,5 @@
package com.baeldung.javaslang;
import javaslang.CheckedFunction1;
import javaslang.collection.Stream;
import javaslang.test.Arbitrary;
@ -8,42 +7,42 @@ import javaslang.test.CheckResult;
import javaslang.test.Property;
import org.junit.Test;
import java.util.function.Predicate;
import static javaslang.API.*;
public class PropertyBasedTest {
public Stream<String> stringsSupplier() {
return Stream.from(0).map(i -> {
boolean divByTwo = i % 2 == 0;
boolean divByFive = i % 5 == 0;
private static Predicate<Integer> divisibleByTwo = i -> i % 2 == 0;
private static Predicate<Integer> divisibleByFive = i -> i % 5 == 0;
if(divByFive && divByTwo){
return "DividedByTwoAndFiveWithoutRemainder";
}else if(divByFive){
return "DividedByFiveWithoutRemainder";
}else if(divByTwo){
return "DividedByTwoWithoutRemainder";
}
return "";
});
private Stream<String> stringsSupplier() {
return Stream.from(0).map(i -> Match(i).of(
Case($(divisibleByFive.and(divisibleByTwo)), "DividedByTwoAndFiveWithoutRemainder"),
Case($(divisibleByFive), "DividedByFiveWithoutRemainder"),
Case($(divisibleByTwo), "DividedByTwoWithoutRemainder"),
Case($(), "")));
}
@Test
public void givenArbitrarySeq_whenCheckThatEverySecondElementIsEqualToString_thenTestPass() {
//given
Arbitrary<Integer> multiplesOf2 = Arbitrary.integer()
.filter(i -> i > 0)
.filter(i -> i % 2 == 0 && i % 5 != 0);
Arbitrary<Integer> multiplesOf2 = Arbitrary
.integer()
.filter(i -> i > 0)
.filter(i -> i % 2 == 0 && i % 5 != 0);
//when
CheckedFunction1<Integer, Boolean> mustEquals =
i -> stringsSupplier().get(i).equals("DividedByTwoWithoutRemainder");
CheckedFunction1<Integer, Boolean> mustEquals = i -> stringsSupplier()
.get(i)
.equals("DividedByTwoWithoutRemainder");
//then
CheckResult result = Property
.def("Every second element must equal to DividedByTwoWithoutRemainder")
.forAll(multiplesOf2)
.suchThat(mustEquals)
.check(10_000, 100);
.def("Every second element must equal to DividedByTwoWithoutRemainder")
.forAll(multiplesOf2)
.suchThat(mustEquals)
.check(10_000, 100);
result.assertIsSatisfied();
}
@ -51,19 +50,22 @@ public class PropertyBasedTest {
@Test
public void givenArbitrarySeq_whenCheckThatEveryFifthElementIsEqualToString_thenTestPass() {
//given
Arbitrary<Integer> multiplesOf5 = Arbitrary.integer()
.filter(i -> i > 0)
.filter(i -> i % 5 == 0 && i % 2 == 0);
Arbitrary<Integer> multiplesOf5 = Arbitrary
.integer()
.filter(i -> i > 0)
.filter(i -> i % 5 == 0 && i % 2 == 0);
//when
CheckedFunction1<Integer, Boolean> mustEquals = i ->
stringsSupplier().get(i).endsWith("DividedByTwoAndFiveWithoutRemainder");
CheckedFunction1<Integer, Boolean> mustEquals = i -> stringsSupplier()
.get(i)
.endsWith("DividedByTwoAndFiveWithoutRemainder");
//then
Property.def("Every fifth element must equal to DividedByTwoAndFiveWithoutRemainder")
.forAll(multiplesOf5)
.suchThat(mustEquals)
.check(10_000, 1_000)
.assertIsSatisfied();
Property
.def("Every fifth element must equal to DividedByTwoAndFiveWithoutRemainder")
.forAll(multiplesOf5)
.suchThat(mustEquals)
.check(10_000, 1_000)
.assertIsSatisfied();
}
}