added DeprecatedTest. updated kotlin version

Author: Iurii-Dziuban

README.md

@@ -70,6 +70,7 @@ Coveralls and Cobertura are not good with generated code, so Delegates example w
 - `SpringExampleTest` integration with spring framework
 - `ObservableTest` observable feature example (kind of value changed listener)
 - `Mapping` mapping from Map to class fields example
+- `DeprecatedTest` example of kotlin deprecation and tooling of Intellij idea for deprecation
 
 # Ideas
 - From reference https://kotlinlang.org/docs/reference/

pom.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<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">
+<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>
 
@@ -32,13 +33,13 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <kotlin.version>1.2.10</kotlin.version>
+        <kotlin.version>1.2.21</kotlin.version>
         <java.version>1.8</java.version>
         <junit.version>4.12</junit.version>
-        <spring.version>5.0.2.RELEASE</spring.version>
-        <kotlin.compiler.incremental>true</kotlin.compiler.incremental>
-        <jacoco.ratio.instruction>0.50</jacoco.ratio.instruction>
-        <jacoco.ratio.bundle>0.50</jacoco.ratio.bundle>
+        <spring.version>5.0.3.RELEASE</spring.version>
+        <kotlin.compiler.incremental>false</kotlin.compiler.incremental>
+        <jacoco.ratio.instruction>0.87</jacoco.ratio.instruction>
+        <jacoco.ratio.bundle>0.72</jacoco.ratio.bundle>
     </properties>
 
     <dependencies>
@@ -92,18 +93,16 @@
             <scope>test</scope>
         </dependency>
 
-        <dependency>
-            <groupId>org.jetbrains.kotlin</groupId>
-            <artifactId>kotlin-test</artifactId>
-            <version>${kotlin.version}</version>
-            <scope>test</scope>
-        </dependency>
-
     </dependencies>
 
     <build>
         <sourceDirectory>src/main/kotlin</sourceDirectory>
         <testSourceDirectory>src/test/kotlin</testSourceDirectory>
+        <testResources>
+            <testResource>
+                <directory>src/test/resources</directory>
+            </testResource>
+        </testResources>
 
         <plugins>
             <plugin>
@@ -126,6 +125,14 @@
                         </goals>
                     </execution>
                 </executions>
+                <configuration>
+                    <experimentalCoroutines>enable</experimentalCoroutines>
+                    <nowarn>false</nowarn>
+                    <args>
+                        <arg>-Xjsr305=strict</arg>
+                    </args>
+                    <jvmTarget>1.8</jvmTarget>
+                </configuration>
             </plugin>
 
             <plugin>

src/test/kotlin/org/kotlin/examples/DeprecatedTest.kt

@@ -0,0 +1,23 @@
+package org.kotlin.examples
+
+import org.junit.Test
+import kotlin.ReplaceWith
+
+/**
+ * Example of using kotlin Intellij tooling for deprecation
+ *
+ * https://dzone.com/articles/deprecated-annotation-in-kotlin
+ */
+class DeprecatedTest {
+
+    @Test
+    fun deprecated() {
+        val s = ""
+        assert(isEmpty(s));
+    }
+
+    @Deprecated(message = "we are going to replace with String.isEmpty", replaceWith = ReplaceWith(expression = "input.isEmpty()", imports = ["kotlin.String"]))
+    fun isEmpty(input: String): Boolean {
+        return input == ""
+    }
+}

src/test/kotlin/org/kotlin/examples/DollarTest.kt

@@ -3,10 +3,7 @@ package org.kotlin.examples
 import org.junit.Test
 import org.kotlin.examples.override_operators.Dollar
 import org.slf4j.LoggerFactory
-import kotlin.test.assertEquals
-import kotlin.test.assertFalse
-import kotlin.test.assertTrue
-import kotlin.test.fail
+import kotlin.test.*
 
 /**
  * Created by iurii.dziuban on 01.09.2016.
@@ -101,17 +98,29 @@ class DollarTest {
         assertEquals(Dollar(100), dollarProperty.oneDollar)
     }
 
+    @Test(expected = AssertionError::class)
+    fun nullAndStringTemplate() {
+        val dollar = null;
+        dollar?.let {
+            LOGGER.info("Dollar is not null")
+            // not working for properties...
+            LOGGER.info("Dollar is not null and $dollar.cents")
+            assertNull(dollar)
+            return
+        }
+        fail("dollar should not be null")
+    }
+
     @Test
-    fun nullCheckAndStringTemplate() {
+    fun nonNullAndStringTemplate() {
         val dollar = Dollar(50);
-        dollar?.let {
+        dollar.let {
             LOGGER.info("Dollar is not null and " + dollar.cents)
             // not working for properties...
             LOGGER.info("Dollar is not null and $dollar.cents")
             assertEquals(Dollar(50), dollar)
             return
         }
-        fail("dollar should not be null")
     }
 
     @Test

src/test/kotlin/org/kotlin/examples/SpringExampleTest.kt

@@ -13,14 +13,14 @@ import kotlin.test.assertEquals
  * Simple kotlin spring integration example
  */
 @RunWith(SpringJUnit4ClassRunner::class)
-@ContextConfiguration(locations = arrayOf("classpath:application-context.xml"))
+@ContextConfiguration(locations = ["classpath:application-context.xml"])
 class SpringExampleTest {
 
     @Autowired
     lateinit var transaction : Transaction
 
     @Test
-    fun test() {
+    fun `basic test`() {
         assertEquals(2, transaction.id)
         assertEquals("Iurii", transaction.name)
     }