Group testing modules (#3014)

* move security content from spring-security-rest-full

* swagger update

* move query language to new module

* rename spring-security-rest-full to spring-rest-full

* group persistence modules

* group testing modules

* try fix conflict

testing-modules/groovy-spock/README.md

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+### Relevant articles
+
+- [Introduction to Testing with Spock and Groovy](http://www.baeldung.com/groovy-spock)

testing-modules/groovy-spock/pom.xml

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+<?xml version="1.0"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>org.spockframework</groupId>
+    <artifactId>groovy-spock</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <packaging>jar</packaging>
+    <name>Spock Framework - Example Project</name>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+    </properties>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+        <relativePath>../</relativePath>
+    </parent>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.codehaus.gmavenplus</groupId>
+                <artifactId>gmavenplus-plugin</artifactId>
+                <version>1.5</version>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>compile</goal>
+                            <goal>testCompile</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.spockframework</groupId>
+            <artifactId>spock-core</artifactId>
+            <version>1.0-groovy-2.4</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.codehaus.groovy</groupId>
+            <artifactId>groovy-all</artifactId>
+            <version>2.4.7</version>
+        </dependency>
+    </dependencies>
+</project>

testing-modules/groovy-spock/src/test/groovy/FirstSpecification.groovy

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+import spock.lang.Specification
+
+class FirstSpecification extends Specification {
+
+    def "one plus one should equal two"() {
+        expect:
+        1 + 1 == 2
+    }
+
+    def "two plus two should equal four"() {
+        given:
+        int left = 2
+        int right = 2
+
+        when:
+        int result = left + right
+
+        then:
+        result == 4
+    }
+
+    def "Should be able to remove from list"() {
+        given:
+        def list = [1, 2, 3, 4]
+
+        when:
+        list.remove(0)
+
+        then:
+        list == [2, 3, 4]
+    }
+
+    def "Should get an index out of bounds when removing a non-existent item"() {
+        given:
+        def list = [1, 2, 3, 4]
+
+        when:
+        list.remove(20)
+
+        then:
+        thrown(IndexOutOfBoundsException)
+        list.size() == 4
+    }
+
+    def "numbers to the power of two"(int a, int b, int c) {
+        expect:
+        Math.pow(a, b) == c
+
+        where:
+        a | b | c
+        1 | 2 | 1
+        2 | 2 | 4
+        3 | 2 | 9
+    }
+
+    def "Should return default value for mock"() {
+        given:
+        def paymentGateway = Mock(PaymentGateway)
+
+        when:
+        def result = paymentGateway.makePayment(12.99)
+
+        then:
+        !result
+    }
+
+    def "Should return true value for mock"() {
+        given:
+        def paymentGateway = Mock(PaymentGateway)
+        paymentGateway.makePayment(20) >> true
+
+        when:
+        def result = paymentGateway.makePayment(20)
+
+        then:
+        result
+    }
+
+    def "Should verify notify was called"() {
+        given:
+        def notifier = Mock(Notifier)
+
+        when:
+        notifier.notify('foo')
+
+        then:
+        1 * notifier.notify('foo')
+    }
+}

testing-modules/groovy-spock/src/test/groovy/Notifier.groovy

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+interface Notifier {
+    void notify(String message)
+}

testing-modules/groovy-spock/src/test/groovy/PaymentGateway.groovy

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+interface PaymentGateway {
+    boolean makePayment(BigDecimal amount)
+}