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Introduce TestRestTemplate Kotlin extensions 

This commit introduces Kotlin extensions similar to the RestOperations
ones in order to be able to take advantage of Kotlin reified type
parameters for example.

See gh-11039
pull/11135/merge
sdeleuze 8 years ago committed by Stephane Nicoll
parent
7f8ca64df1
commit
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4 changed files with 560 additions and 0 deletions
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  1. 19
      spring-boot-project/spring-boot-parent/pom.xml
  2. 75
      spring-boot-project/spring-boot-test/pom.xml
  3. 234
      spring-boot-project/spring-boot-test/src/main/kotlin/org/springframework/boot/test/web/client/TestRestTemplateExtensions.kt
  4. 232
      spring-boot-project/spring-boot-test/src/test/kotlin/org/springframework/boot/test/web/client/TestRestTemplateExtensionsTests.kt

19
spring-boot-project/spring-boot-parent/pom.xml
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@ -53,6 +53,25 @@ @@ -53,6 +53,25 @@
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>com.nhaarman</groupId>
<artifactId>mockito-kotlin</artifactId>
<version>1.5.0</version>
<exclusions>
<exclusion>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-stdlib</artifactId>
</exclusion>
<exclusion>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-reflect</artifactId>
</exclusion>
<exclusion>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>com.squareup.okhttp</groupId>
<artifactId>okhttp</artifactId>

75
spring-boot-project/spring-boot-test/pom.xml
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@ -115,6 +115,16 @@ @@ -115,6 +115,16 @@
<artifactId>htmlunit</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-stdlib</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-reflect</artifactId>
<optional>true</optional>
</dependency>
<!-- Test -->
<dependency>
<groupId>javax.json</groupId>
@ -182,6 +192,11 @@ @@ -182,6 +192,11 @@
<artifactId>junit-jupiter-api</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.nhaarman</groupId>
<artifactId>mockito-kotlin</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
@ -196,6 +211,66 @@ @@ -196,6 +211,66 @@
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-plugin</artifactId>
<executions>
<execution>
<id>compile</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
<configuration>
<sourceDirs>
<sourceDir>${project.basedir}/src/main/kotlin</sourceDir>
<sourceDir>${project.basedir}/src/main/java</sourceDir>
</sourceDirs>
</configuration>
</execution>
<execution>
<id>test-compile</id>
<phase>test-compile</phase>
<goals>
<goal>test-compile</goal>
</goals>
<configuration>
<sourceDirs>
<sourceDir>${project.basedir}/src/test/kotlin</sourceDir>
<sourceDir>${project.basedir}/src/test/java</sourceDir>
</sourceDirs>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<executions>
<execution>
<id>default-compile</id>
<phase>none</phase>
</execution>
<execution>
<id>default-testCompile</id>
<phase>none</phase>
</execution>
<execution>
<id>java-compile</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
<execution>
<id>java-test-compile</id>
<phase>test-compile</phase>
<goals>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>

234
spring-boot-project/spring-boot-test/src/main/kotlin/org/springframework/boot/test/web/client/TestRestTemplateExtensions.kt
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@ -0,0 +1,234 @@ @@ -0,0 +1,234 @@
/*
* Copyright 2012-2017 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.boot.test.web.client
import org.springframework.core.ParameterizedTypeReference
import org.springframework.http.HttpEntity
import org.springframework.http.HttpMethod
import org.springframework.http.RequestEntity
import org.springframework.http.ResponseEntity
import org.springframework.web.client.RestClientException
import java.net.URI
/**
* Extension for [TestRestTemplate.getForObject] avoiding specifying the type
* parameter thanks to Kotlin reified type parameters.
*
* @author Sebastien Deleuze
* @since 2.0.0
*/
@Throws(RestClientException::class)
inline fun <reified T: Any> TestRestTemplate.getForObject(url: String, vararg uriVariables: Any): T? =
getForObject(url, T::class.java, *uriVariables)
/**
* Extension for [TestRestTemplate.getForObject] avoiding specifying the type
* parameter thanks to Kotlin reified type parameters.
*
* @author Sebastien Deleuze
* @since 2.0.0
*/
@Throws(RestClientException::class)
inline fun <reified T: Any> TestRestTemplate.getForObject(url: String, uriVariables: Map<String, Any?>): T? =
getForObject(url, T::class.java, uriVariables)
/**
* Extension for [TestRestTemplate.getForObject] avoiding specifying the type parameter
* thanks to Kotlin reified type parameters.
*
* @author Sebastien Deleuze
* @since 2.0.0
*/
@Throws(RestClientException::class)
inline fun <reified T: Any> TestRestTemplate.getForObject(url: URI): T? =
getForObject(url, T::class.java)
/**
* Extension for [TestRestTemplate.getForEntity] avoiding requiring the type parameter
* thanks to Kotlin reified type parameters.
*
* @author Sebastien Deleuze
* @since 2.0.0
*/
@Throws(RestClientException::class)
inline fun <reified T: Any> TestRestTemplate.getForEntity(url: URI): ResponseEntity<T> =
getForEntity(url, T::class.java)
/**
* Extension for [TestRestTemplate.getForEntity] avoiding requiring the type parameter
* thanks to Kotlin reified type parameters.
*
* @author Sebastien Deleuze
* @since 2.0.0
*/
@Throws(RestClientException::class)
inline fun <reified T: Any> TestRestTemplate.getForEntity(url: String, vararg uriVariables: Any): ResponseEntity<T> =
getForEntity(url, T::class.java, *uriVariables)
/**
* Extension for [TestRestTemplate.getForEntity] avoiding requiring the type parameter
* thanks to Kotlin reified type parameters.
*
* @author Sebastien Deleuze
* @since 2.0.0
*/
@Throws(RestClientException::class)
inline fun <reified T: Any> TestRestTemplate.getForEntity(url: String, uriVariables: Map<String, *>): ResponseEntity<T> =
getForEntity(url, T::class.java, uriVariables)
/**
* Extension for [TestRestTemplate.patchForObject] avoiding specifying the type parameter
* thanks to Kotlin reified type parameters.
*
* @author Sebastien Deleuze
* @since 2.0.0
*/
@Throws(RestClientException::class)
inline fun <reified T: Any> TestRestTemplate.patchForObject(url: String, request: Any, vararg uriVariables: Any): T? =
patchForObject(url, request, T::class.java, *uriVariables)
/**
* Extension for [TestRestTemplate.patchForObject] avoiding specifying the type parameter
* thanks to Kotlin reified type parameters.
*
* @author Sebastien Deleuze
* @since 2.0.0
*/
@Throws(RestClientException::class)
inline fun <reified T: Any> TestRestTemplate.patchForObject(url: String, request: Any, uriVariables: Map<String, *>): T? =
patchForObject(url, request, T::class.java, uriVariables)
/**
* Extension for [TestRestTemplate.patchForObject] avoiding specifying the type parameter
* thanks to Kotlin reified type parameters.
*
* @author Sebastien Deleuze
* @since 2.0.0
*/
@Throws(RestClientException::class)
inline fun <reified T: Any> TestRestTemplate.patchForObject(url: URI, request: Any): T? =
patchForObject(url, request, T::class.java)
/**
* Extension for [TestRestTemplate.postForObject] avoiding specifying the type parameter
* thanks to Kotlin reified type parameters.
*
* @author Sebastien Deleuze
* @since 2.0.0
*/
@Throws(RestClientException::class)
inline fun <reified T: Any> TestRestTemplate.postForObject(url: String, request: Any, vararg uriVariables: Any): T? =
postForObject(url, request, T::class.java, *uriVariables)
/**
* Extension for [TestRestTemplate.postForObject] avoiding specifying the type parameter
* thanks to Kotlin reified type parameters.
*
* @author Sebastien Deleuze
* @since 2.0.0
*/
@Throws(RestClientException::class)
inline fun <reified T: Any> TestRestTemplate.postForObject(url: String, request: Any, uriVariables: Map<String, *>): T? =
postForObject(url, request, T::class.java, uriVariables)
/**
* Extension for [TestRestTemplate.postForObject] avoiding specifying the type parameter
* thanks to Kotlin reified type parameters.
*
* @author Sebastien Deleuze
* @since 2.0.0
*/
@Throws(RestClientException::class)
inline fun <reified T: Any> TestRestTemplate.postForObject(url: URI, request: Any): T? =
postForObject(url, request, T::class.java)
/**
* Extension for [TestRestTemplate.postForEntity] avoiding specifying the type parameter
* thanks to Kotlin reified type parameters.
*
* @author Sebastien Deleuze
* @since 2.0.0
*/
@Throws(RestClientException::class)
inline fun <reified T: Any> TestRestTemplate.postForEntity(url: String, request: Any, vararg uriVariables: Any): ResponseEntity<T> =
postForEntity(url, request, T::class.java, *uriVariables)
/**
* Extension for [TestRestTemplate.postForEntity] avoiding specifying the type parameter
* thanks to Kotlin reified type parameters.
*
* @author Sebastien Deleuze
* @since 2.0.0
*/
@Throws(RestClientException::class)
inline fun <reified T: Any> TestRestTemplate.postForEntity(url: String, request: Any, uriVariables: Map<String, *>): ResponseEntity<T> =
postForEntity(url, request, T::class.java, uriVariables)
/**
* Extension for [TestRestTemplate.postForEntity] avoiding specifying the type parameter
* thanks to Kotlin reified type parameters.
*
* @author Sebastien Deleuze
* @since 2.0.0
*/
@Throws(RestClientException::class)
inline fun <reified T: Any> TestRestTemplate.postForEntity(url: URI, request: Any): ResponseEntity<T> =
postForEntity(url, request, T::class.java)
/**
* Extension for [TestRestTemplate.exchange] avoiding specifying the type parameter
* thanks to Kotlin reified type parameters.
*
* @author Sebastien Deleuze
* @since 2.0.0
*/
@Throws(RestClientException::class)
inline fun <reified T: Any> TestRestTemplate.exchange(url: String, method: HttpMethod, requestEntity: HttpEntity<*>, vararg uriVariables: Any): ResponseEntity<T> =
exchange(url, method, requestEntity, object : ParameterizedTypeReference<T>() {}, *uriVariables)
/**
* Extension for [TestRestTemplate.exchange] avoiding specifying the type parameter
* thanks to Kotlin reified type parameters.
*
* @author Sebastien Deleuze
* @since 2.0.0
*/
@Throws(RestClientException::class)
inline fun <reified T: Any> TestRestTemplate.exchange(url: String, method: HttpMethod, requestEntity: HttpEntity<*>, uriVariables: Map<String, *>): ResponseEntity<T> =
exchange(url, method, requestEntity, object : ParameterizedTypeReference<T>() {}, uriVariables)
/**
* Extension for [TestRestTemplate.exchange] avoiding specifying the type parameter
* thanks to Kotlin reified type parameters.
*
* @author Sebastien Deleuze
* @since 2.0.0
*/
@Throws(RestClientException::class)
inline fun <reified T: Any> TestRestTemplate.exchange(url: URI, method: HttpMethod, requestEntity: HttpEntity<*>): ResponseEntity<T> =
exchange(url, method, requestEntity, object : ParameterizedTypeReference<T>() {})
/**
* Extension for [TestRestTemplate.exchange] avoiding specifying the type parameter
* thanks to Kotlin reified type parameters.
*
* @author Sebastien Deleuze
* @since 2.0.0
*/
@Throws(RestClientException::class)
inline fun <reified T: Any> TestRestTemplate.exchange(requestEntity: RequestEntity<*>): ResponseEntity<T> =
exchange(requestEntity, object : ParameterizedTypeReference<T>() {})

232
spring-boot-project/spring-boot-test/src/test/kotlin/org/springframework/boot/test/web/client/TestRestTemplateExtensionsTests.kt
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@ -0,0 +1,232 @@ @@ -0,0 +1,232 @@
/*
* Copyright 2012-2017 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.boot.test.web.client
import com.nhaarman.mockito_kotlin.mock
import org.junit.Assert
import org.junit.Test
import org.junit.runner.RunWith
import org.mockito.Answers
import org.mockito.Mock
import org.mockito.Mockito.*
import org.mockito.junit.MockitoJUnitRunner
import org.springframework.core.ParameterizedTypeReference
import org.springframework.http.HttpEntity
import org.springframework.http.HttpMethod
import org.springframework.http.RequestEntity
import org.springframework.util.ReflectionUtils
import org.springframework.web.client.RestOperations
import java.net.URI
import kotlin.reflect.full.createType
import kotlin.reflect.jvm.kotlinFunction
/**
* Mock object based tests for [TestRestTemplate] Kotlin extensions
*
* @author Sebastien Deleuze
*/
@RunWith(MockitoJUnitRunner::class)
class TestRestTemplateExtensionsTests {
@Mock(answer = Answers.RETURNS_MOCKS)
lateinit var template: TestRestTemplate
@Test
fun `getForObject with reified type parameters, String and varargs`() {
val url = "https://spring.io"
val var1 = "var1"
val var2 = "var2"
template.getForObject<Foo>(url, var1, var2)
template.restTemplate
verify(template, times(1)).getForObject(url, Foo::class.java, var1, var2)
}
@Test
fun `getForObject with reified type parameters, String and Map`() {
val url = "https://spring.io"
val vars = mapOf(Pair("key1", "value1"), Pair("key2", "value2"))
template.getForObject<Foo>(url, vars)
verify(template, times(1)).getForObject(url, Foo::class.java, vars)
}
@Test
fun `getForObject with reified type parameters and URI`() {
val url = URI("https://spring.io")
template.getForObject<Foo>(url)
verify(template, times(1)).getForObject(url, Foo::class.java)
}
@Test
fun `getForEntity with reified type parameters, String and URI`() {
val url = URI("https://spring.io")
template.getForEntity<Foo>(url)
verify(template, times(1)).getForEntity(url, Foo::class.java)
}
@Test
fun `getForEntity with reified type parameters, String and varargs`() {
val url = "https://spring.io"
val var1 = "var1"
val var2 = "var2"
template.getForEntity<Foo>(url, var1, var2)
verify(template, times(1)).getForEntity(url, Foo::class.java, var1, var2)
}
@Test
fun `getForEntity with reified type parameters and Map`() {
val url = "https://spring.io"
val vars = mapOf(Pair("key1", "value1"), Pair("key2", "value2"))
template.getForEntity<Foo>(url, vars)
verify(template, times(1)).getForEntity(url, Foo::class.java, vars)
}
@Test
fun `patchForObject with reified type parameters, String and varargs`() {
val url = "https://spring.io"
val body: Any = "body"
val var1 = "var1"
val var2 = "var2"
template.patchForObject<Foo>(url, body, var1, var2)
verify(template, times(1)).patchForObject(url, body, Foo::class.java, var1, var2)
}
@Test
fun `patchForObject with reified type parameters, String and Map`() {
val url = "https://spring.io"
val body: Any = "body"
val vars = mapOf(Pair("key1", "value1"), Pair("key2", "value2"))
template.patchForObject<Foo>(url, body, vars)
verify(template, times(1)).patchForObject(url, body, Foo::class.java, vars)
}
@Test
fun `patchForObject with reified type parameters`() {
val url = "https://spring.io"
val body: Any = "body"
template.patchForObject<Foo>(url, body)
verify(template, times(1)).patchForObject(url, body, Foo::class.java)
}
@Test
fun `postForObject with reified type parameters, String and varargs`() {
val url = "https://spring.io"
val body: Any = "body"
val var1 = "var1"
val var2 = "var2"
template.postForObject<Foo>(url, body, var1, var2)
verify(template, times(1)).postForObject(url, body, Foo::class.java, var1, var2)
}
@Test
fun `postForObject with reified type parameters, String and Map`() {
val url = "https://spring.io"
val body: Any = "body"
val vars = mapOf(Pair("key1", "value1"), Pair("key2", "value2"))
template.postForObject<Foo>(url, body, vars)
verify(template, times(1)).postForObject(url, body, Foo::class.java, vars)
}
@Test
fun `postForObject with reified type parameters`() {
val url = "https://spring.io"
val body: Any = "body"
template.postForObject<Foo>(url, body)
verify(template, times(1)).postForObject(url, body, Foo::class.java)
}
@Test
fun `postForEntity with reified type parameters, String and varargs`() {
val url = "https://spring.io"
val body: Any = "body"
val var1 = "var1"
val var2 = "var2"
template.postForEntity<Foo>(url, body, var1, var2)
verify(template, times(1)).postForEntity(url, body, Foo::class.java, var1, var2)
}
@Test
fun `postForEntity with reified type parameters, String and Map`() {
val url = "https://spring.io"
val body: Any = "body"
val vars = mapOf(Pair("key1", "value1"), Pair("key2", "value2"))
template.postForEntity<Foo>(url, body, vars)
verify(template, times(1)).postForEntity(url, body, Foo::class.java, vars)
}
@Test
fun `postForEntity with reified type parameters`() {
val url = "https://spring.io"
val body: Any = "body"
template.postForEntity<Foo>(url, body)
verify(template, times(1)).postForEntity(url, body, Foo::class.java)
}
@Test
fun `exchange with reified type parameters, String, HttpMethod, HttpEntity and varargs`() {
val url = "https://spring.io"
val method = HttpMethod.GET
val entity = mock<HttpEntity<Foo>>()
val var1 = "var1"
val var2 = "var2"
template.exchange<List<Foo>>(url, method, entity, var1, var2)
verify(template, times(1)).exchange(url, method, entity, object : ParameterizedTypeReference<List<Foo>>() {}, var1, var2)
}
@Test
fun `exchange with reified type parameters, String, HttpMethod, HttpEntity and Map`() {
val url = "https://spring.io"
val method = HttpMethod.GET
val entity = mock<HttpEntity<Foo>>()
val vars = mapOf(Pair("key1", "value1"), Pair("key2", "value2"))
template.exchange<List<Foo>>(url, method, entity, vars)
verify(template, times(1)).exchange(url, method, entity, object : ParameterizedTypeReference<List<Foo>>() {}, vars)
}
@Test
fun `exchange with reified type parameters, String, HttpMethod, HttpEntity`() {
val url = "https://spring.io"
val method = HttpMethod.GET
val entity = mock<HttpEntity<Foo>>()
template.exchange<List<Foo>>(url, method, entity)
verify(template, times(1)).exchange(url, method, entity, object : ParameterizedTypeReference<List<Foo>>() {})
}
@Test
fun `exchange with reified type parameters, String, HttpEntity`() {
val entity = mock<RequestEntity<Foo>>()
template.exchange<List<Foo>>(entity)
verify(template, times(1)).exchange(entity, object : ParameterizedTypeReference<List<Foo>>() {})
}
@Test
fun `RestOperations are available`() {
val extensions = Class.forName("org.springframework.boot.test.web.client.TestRestTemplateExtensionsKt")
ReflectionUtils.doWithMethods(RestOperations::class.java) { method ->
arrayOf(ParameterizedTypeReference::class, Class::class).forEach { kClass ->
if (method.parameterTypes.contains(kClass.java)) {
val parameters = mutableListOf<Class<*>>(TestRestTemplate::class.java).apply { addAll(method.parameterTypes.filter { it != kClass.java }) }
val f = extensions.getDeclaredMethod(method.name, *parameters.toTypedArray()).kotlinFunction!!
Assert.assertEquals(1, f.typeParameters.size)
Assert.assertEquals(listOf(Any::class.createType()), f.typeParameters[0].upperBounds)
}
}
}
}
class Foo
}
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