diff --git a/testing/pom.xml b/testing/pom.xml index bfd47dbc4a..72ec2b2f0c 100644 --- a/testing/pom.xml +++ b/testing/pom.xml @@ -13,6 +13,11 @@ + + com.insightfullogic + lambda-behave + 0.4 + com.google.guava guava diff --git a/testing/src/main/java/com/baeldung/lambdabehave/Calculator.java b/testing/src/main/java/com/baeldung/lambdabehave/Calculator.java new file mode 100644 index 0000000000..b194dce500 --- /dev/null +++ b/testing/src/main/java/com/baeldung/lambdabehave/Calculator.java @@ -0,0 +1,24 @@ +package com.baeldung.lambdabehave; + +public class Calculator { + + private int x; + private int y; + + Calculator(int x, int y) { + this.x = x; + this.y = y; + } + + public int add() { + return this.x + this.y; + } + + public int divide(int a, int b) { + return a / b; + } + + public int add(int a, int b) { + return a + b; + } +} diff --git a/testing/src/test/java/com/baeldung/lambdabehave/CalculatorTest.java b/testing/src/test/java/com/baeldung/lambdabehave/CalculatorTest.java new file mode 100644 index 0000000000..d179c6eb0e --- /dev/null +++ b/testing/src/test/java/com/baeldung/lambdabehave/CalculatorTest.java @@ -0,0 +1,54 @@ +package com.baeldung.lambdabehave; + +import com.insightfullogic.lambdabehave.JunitSuiteRunner; +import com.insightfullogic.lambdabehave.Suite; +import com.insightfullogic.lambdabehave.generators.Generator; +import com.insightfullogic.lambdabehave.generators.SourceGenerator; +import org.junit.runner.RunWith; + +@RunWith(JunitSuiteRunner.class) +public class CalculatorTest { + + private Calculator calculator; + + { + Suite.describe("Lambda behave example tests", it -> { + + it.isSetupWith(() -> { + calculator = new Calculator(1, 2); + }); + it.should("Add the given numbers", expect -> { + expect.that(calculator.add()).is(3); + }); + it.should("Throw an exception if divide by 0", expect -> { + expect.exception(ArithmeticException.class, () -> { + calculator.divide(1, 0); + }); + }); + it.uses(2, 3, 5) + .and(23, 10, 33) + .toShow("%d + %d = %d", (expect, a, b, c) -> { + expect.that(calculator.add(a, b)).is(c); + }); + it.requires(2) + .example(Generator.asciiStrings()) + .toShow("Reversing a String twice returns the original String", (expect, str) -> { + String same = new StringBuilder(str).reverse() + .reverse() + .toString(); + expect.that(same) + .isEqualTo(str); + }); + it.requires(2) + .withSource(SourceGenerator.deterministicNumbers(5626689007407L)) + .example(Generator.asciiStrings()) + .toShow("Reversing a String twice returns the original String", (expect, str) -> { + String same = new StringBuilder(str).reverse() + .reverse() + .toString(); + expect.that(same) + .isEqualTo(str); + }); + }); + } +}