Merge remote-tracking branch 'x/kotlin'

Kotlin/.gitignore

@@ -0,0 +1,5 @@
+build
+out
+.gradle
+.idea
+*.iml

Kotlin/build.gradle

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+apply plugin: 'kotlin'
+
+buildscript {
+    ext {
+        kotlin_version = "1.2+"
+    }
+    repositories {
+        mavenCentral()
+    }
+    dependencies {
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath 'org.junit.platform:junit-platform-gradle-plugin:1.0.1'
+    }
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    compile "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
+    compile "org.jetbrains.kotlin:kotlin-stdlib-jre8:$kotlin_version"
+    testCompile "org.jetbrains.kotlin:kotlin-test:$kotlin_version"
+    testCompile "org.assertj:assertj-core:3.8.0"
+    testCompile "org.mockito:mockito-core:2.12.0"
+    testCompile "com.nhaarman:mockito-kotlin:1.6.0"
+    testCompile "junit:junit:4.12"
+    testCompile "pl.pragmatists:JUnitParams:1.1.1"
+}
+
+task wrapper(type: Wrapper) {
+    gradleVersion = "4.1"
+}

Kotlin/src/main/kotlin/org/codecop/dependencies/b/Assignment.md

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+Assignment B
+============
+
+Goal
+----
+
+We have some legacy code. We need to make changes.
+To make changes we need to introduce tests first.
+We might have to change some code to enable testing.
+We need to introduce so-called Seams (see Michael
+Feathers' Working Effectively with Legacy Code).
+Changing code without test is risky, so we want to
+
+* Only change as little code as possible.
+* Rely on automated Refactoring tools as much as possible.
+* You must not change the public API of the class.
+
+Problem Category
+----------------
+
+The system under test contains non deterministic behaviour,
+which is located in a few methods. The system under test can
+be sub-classed.
+
+Task
+----
+
+The given `MarketingCampaign` controls the marketing actions which
+run on our online shop. During campaigns we e.g. offer discounts.
+
+* Bring `MarketingCampaign` under test. Make sure to cover all paths in the core logic.
+* There is an existing `MarketingCampaignTest` with a first test case which might or might not work.

Kotlin/src/main/kotlin/org/codecop/dependencies/b/MarketingCampaign.kt

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+package org.codecop.dependencies.b
+
+import java.time.DayOfWeek
+import java.time.LocalDateTime
+
+class MarketingCampaign {
+    fun isActive(): Boolean {
+        return milliSeconds() % 2 == 0L
+    }
+
+    private fun milliSeconds(): Long {
+        return System.currentTimeMillis()
+    }
+
+    fun isCrazySalesDay(): Boolean {
+        return dayOfWeek().compareTo(DayOfWeek.FRIDAY) == 0
+    }
+
+    protected fun dayOfWeek(): DayOfWeek {
+        return LocalDateTime.now().dayOfWeek
+    }
+}

Kotlin/src/test/kotlin/org/codecop/dependencies/b/MarketingCampaignTest.kt

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+package org.codecop.dependencies.b
+
+import org.junit.Assert.assertFalse
+import org.junit.Test
+
+class MarketingCampaignTest {
+
+    @Test
+    fun test2() {
+        val campaign = MarketingCampaign()
+
+        val isCrazySalesDay = campaign.isCrazySalesDay()
+
+        assertFalse(isCrazySalesDay)
+    }
+
+}

Kotlin/src/test/resources/mockito-extensions/org.mockito.plugins.MockMaker

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+mock-maker-inline