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Graphql Wiremock Extension - Graphql Body Matcher

⚠️ IMPORTANT: Starting from version 0.6, this extension requires WireMock 3.x. WireMock 2.x is no longer supported from this version onwards.

An extension for GraphQL testing with Wiremock

GraphqlBodyMatcher is an extension for WireMock that allows for semantical verification of GraphQL requests.

GraphqlBodyMatcher はWireMockの拡張で、GraphQL のリクエストが意味的に一致しているかを検証します。

Overview 📖

  • In addition to handling whitespaces, the extension sorts and normalizes queries. The GraphQL parsing and normalizing is handled by graphql-java.
  • Beyond just queries, it also compares variables. For the comparison of JSON variables, EqualToJsonPattern is used. It's important to note that the order of arrays must match.

For a comprehensive understanding of our matching logic and details on our match strategy, please refer to our MatchStrategy documentation.

  • この拡張機能は、空白の取り扱いに加えて、クエリをソートし正規化します。GraphQL のパースおよび正規化にはgraphql-javaを使用しています。
  • クエリだけでなく、変数も比較されます。変数の JSON の比較にはorg.json.JSONObject.similarを使用しますが、配列の順番も一致している必要があります。

詳しいマッチングロジックなど関しては、MatchStrategy のドキュメントを参照してください。

Usage 🛠️

For Gradle:

repositories {
    mavenCentral()
}

dependencies {
    testImplementation 'io.github.nilwurtz:wiremock-graphql-extension:0.9.0'
}

For Maven:

<dependency>
    <groupId>io.github.nilwurtz</groupId>
    <artifactId>wiremock-graphql-extension</artifactId>
    <version>0.9.0</version>
    <scope>test</scope>
</dependency>

Code Examples 💡

Here are some code examples to get started.

import com.github.tomakehurst.wiremock.client.WireMock;
import io.github.nilwurtz.GraphqlBodyMatcher;

import java.util.Map;

var expectedQuery = """
        query HeroInfo($id: Int) {
            hero(id: $id) {
                name
            }
        }
        """;
var expectedVariables = Map.of("id", 1);

WireMock.stubFor(WireMock.post(WireMock.urlEqualTo("/graphql"))
        .andMatching(GraphqlBodyMatcher.extensionName, GraphqlBodyMatcher.parameters(expectedQuery, expectedVariables))
        .willReturn(WireMock.okJson("""
                {
                    "data": {
                        "hero": {
                            "name": "example"
                        }
                    }
                }""")));
import com.github.tomakehurst.wiremock.client.WireMock
import io.github.nilwurtz.GraphqlBodyMatcher

val expectedQuery = """
    query HeroInfo(${'$'}id: Int) {
        hero(id: ${'$'}id) {
            name
        }
    }
""".trimIndent()
val expectedVariables = mapOf("id" to 1)

WireMock.stubFor(
    WireMock.post(WireMock.urlEqualTo("/graphql"))
        .andMatching(GraphqlBodyMatcher.extensionName, GraphqlBodyMatcher.parameters(expectedQuery, expectedVariables))
        .willReturn(
            WireMock.okJson("""
                {
                    "data": {
                        "hero": {
                            "name": "example"
                        }
                    }
                }
            """.trimIndent()
            )
        )
)

As we head towards a 1.0 release, we are focusing on supporting both the WireMock standalone and the WireMock Java API with the same paradigm. This is done through the use of WireMock.requestMatching() or MappingBuilder#andMatching(). To that end, the withRequestQueryAndVariables method has been deprecated from version 0.6.0 onwards and withRequestJson and withRequest methods have been deprecated from version 0.9.0 onwards.

Running with a Remote Wiremock Server 🌍

If you are using Wiremock on a remote server such as Docker, please see the configurations below:

Please download wiremock-graphql-extension-x.y.z-jar-with-dependencies.jar from the Release section.

Server Configuration

When running with docker run:

docker run -it --rm \
      -p 8080:8080 \
      --name wiremock \
      -v /path/to/wiremock-graphql-extension-0.9.0-jar-with-dependencies.jar:/var/wiremock/extensions/wiremock-graphql-extension-0.9.0-jar-with-dependencies.jar \
      wiremock/wiremock \
      --extensions io.github.nilwurtz.GraphqlBodyMatcher

When building with docker build:

FROM wiremock/wiremock:latest
COPY ./wiremock-graphql-extension-0.9.0-jar-with-dependencies.jar /var/wiremock/extensions/wiremock-graphql-extension-0.9.0-jar-with-dependencies.jar

Client-side (Test) Configuration

NOTE: When using a Remote Wiremock Server, you're requested to manage everything within a single JSON format.

import com.github.tomakehurst.wiremock.client.WireMock;
import io.github.nilwurtz.GraphqlBodyMatcher;

import static com.github.tomakehurst.wiremock.client.WireMock.*;

public registerGraphQLWiremock(String query, String response) {
    WireMock(8080).register(
        post(urlPathEqualTo(endPoint))
            .andMatching(GraphqlBodyMatcher.extensionName, GraphqlBodyMatcher.parameters(query))
            .willReturn(okJson(response)));
}
import com.github.tomakehurst.wiremock.client.WireMock
import com.github.tomakehurst.wiremock.client.WireMock.*
import io.github.nilwurtz.GraphqlBodyMatcher

fun registerGraphQLWiremock(query: String, response: String) {
    WireMock(8080).register(
        post(urlPathEqualTo(endPoint))
            .andMatching(GraphqlBodyMatcher.extensionName, GraphqlBodyMatcher.parameters(query))
            .willReturn(okJson(response)))
}

License 📜

This project is licensed under the terms of the MIT License.

Contributing 🤝

Contributions are welcome! Feel free to open an issue or submit a pull request if you have any improvements or suggestions.