BAEL-1045 Lambda Behave (#2456)

* Example Code For Evaluation Article

This is an example code for the evaluation article on "Different Types of Bean Injection in Spring"

* Added unit tests

* Minor changes to application context

* Removed code committed for evaluation article

* BAEL-944 Demonstrating the problems with new Url pattern matching in Spring 5

* BAEL-944 Demonstrating the problems with new Url pattern matching in Spring 5

* BAEL-944 Exploring the Spring MVC URL Matching Improvements

* BAEL-944 Exploring the Spring MVC URL Matching Improvements

* BAEL-944 Exploring the Spring MVC URL Matching Improvements

* BAEL-944 Code Formatting and solving build issue

* BAEL-944 Resolving build issue due to change in Spring version

* BAEL-944 Resolving build issue

* BAEL-944 Formatting code

* BAEL-944 Moving tests to correct package

* BAEL-944 Moving tests to correct package

* BAEL-944 Replacing @RequestMapping by @GetMapping

* BAEL-944 Remove unnecessary attribute name, "value" in annotations

* BAEL-79 Intro to Activiti with Spring

* BAEL-79 Intro to Activiti with Spring

* BAEL-79 Adding activiti module to the parent modules

* BAEL-79 Using latest version

* BAEL-79 Update Spring boot version that works with Activiti

* BAEL-79 Replace RequestMapping with GetMapping

* BAEL-79 Use Java 8 Syntax

* BAEL-79 Formatting

* BAEL-79 changed module name

* BAEL-378 A Guide to Activiti with Java

* BAEL-79 Fixed unit tests

* BAEL-79 Simplified the process

* BAEL-79 Fix test cases

* BAEL-1045 Lambda Behave

* BAEL-1045 Lambda Behave

* BAEL-1045 Lambda Behave

testing/pom.xml

@@ -13,6 +13,11 @@
     </parent>
 
     <dependencies>
+        <dependency>
+            <groupId>com.insightfullogic</groupId>
+            <artifactId>lambda-behave</artifactId>
+            <version>0.4</version>
+        </dependency>
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>

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;
+    }
+}

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);
+              });
+        });
+    }
+}