Adding mockserver module (testcontainers#2085)

* Adding mockserver module

* Adding a verify in the example for completeness

* Adding docs for mockserver

* Using the module generator scripts for completeness

* Apply suggestions from code review

Co-authored-by: Manuel de la Peña <[email protected]>

* Addressing PR review comments

* fix: run make lint

---------

Co-authored-by: Manuel de la Peña <[email protected]>
Co-authored-by: Manuel de la Peña <[email protected]>

.github/dependabot.yml

@@ -142,6 +142,13 @@ updates:
         day: sunday
       open-pull-requests-limit: 3
       rebase-strategy: disabled
+    - package-ecosystem: gomod
+      directory: /modules/mockserver
+      schedule:
+        interval: monthly
+        day: sunday
+      open-pull-requests-limit: 3
+      rebase-strategy: disabled
     - package-ecosystem: gomod
       directory: /modules/mongodb
       schedule:

.github/workflows/ci.yml

@@ -106,7 +106,7 @@ jobs:
       matrix:
         go-version: [1.20.x, 1.x]
         platform: [ubuntu-latest, macos-latest]
-        module: [artemis, cassandra, clickhouse, compose, couchbase, elasticsearch, gcloud, k3s, k6, kafka, localstack, mariadb, mongodb, mssql, mysql, nats, neo4j, postgres, pulsar, rabbitmq, redis, redpanda, vault]
+        module: [artemis, cassandra, clickhouse, compose, couchbase, elasticsearch, gcloud, k3s, k6, kafka, localstack, mariadb, mockserver, mongodb, mssql, mysql, nats, neo4j, postgres, pulsar, rabbitmq, redis, redpanda, vault]
         exclude:
           - go-version: 1.20.x
             module: compose

.vscode/.testcontainers-go.code-workspace

@@ -69,6 +69,10 @@
             "name": "module / mariadb",
             "path": "../modules/mariadb"
         },
+        {
+            "name": "module / mockserver",
+            "path": "../modules/mockserver"
+        },
         {
             "name": "module / mongodb",
             "path": "../modules/mongodb"

docs/modules/mockserver.md

@@ -0,0 +1,58 @@
+# MockServer
+
+Not available until the next release of testcontainers-go <a href="https://github.com/testcontainers/testcontainers-go"><span class="tc-version">:material-tag: main</span></a>
+
+## Introduction
+
+The Testcontainers module for MockServer. MockServer can be used to mock HTTP services by matching requests against user-defined expectations.
+
+## Adding this module to your project dependencies
+
+Please run the following command to add the MockServer module to your Go dependencies:
+
+```
+go get github.com/testcontainers/testcontainers-go/modules/mockserver
+```
+
+## Usage example
+
+<!--codeinclude-->
+[Creating a MockServer container](../../modules/mockserver/examples_test.go) inside_block:runMockServerContainer
+<!--/codeinclude-->
+
+## Module reference
+
+The MockServer module exposes one entrypoint function to create the MockServer container, and this function receives two parameters:
+
+```golang
+func RunContainer(ctx context.Context, opts ...testcontainers.ContainerCustomizer) (*MockServerContainer, error)
+```
+
+- `context.Context`, the Go context.
+- `testcontainers.ContainerCustomizer`, a variadic argument for passing options.
+
+### Container Options
+
+When starting the MockServer container, you can pass options in a variadic way to configure it.
+
+#### Image
+
+If you need to set a different MockServer Docker image, you can use `testcontainers.WithImage` with a valid Docker image
+for MockServer. E.g. `testcontainers.WithImage("mockserver/mockserver:5.15.0")`.
+
+{% include "../features/common_functional_options.md" %}
+
+### Container Methods
+
+The MockServer container exposes the following methods:
+
+#### URL
+
+The `URL` method returns the url string to connect to the MockServer container.
+It returns a string with the format `http://<host>:<port>`.
+
+It can be use to configure a MockServer client (`github.com/BraspagDevelopers/mock-server-client`), e.g.:
+
+<!--codeinclude-->
+[Using URL with the MockServer client](../../modules/mockserver/examples_test.go) inside_block:connectToMockServer
+<!--/codeinclude-->

mkdocs.yml

@@ -74,6 +74,7 @@ nav:
         - modules/kafka.md
         - modules/localstack.md
         - modules/mariadb.md
+        - modules/mockserver.md
         - modules/mongodb.md
         - modules/mssql.md
         - modules/mysql.md

modules/mockserver/Makefile

@@ -0,0 +1,5 @@
+include ../../commons-test.mk
+
+.PHONY: test
+test:
+	$(MAKE) test-mockserver

modules/mockserver/coverage.out

@@ -0,0 +1 @@
+mode: set

modules/mockserver/examples_test.go

@@ -0,0 +1,101 @@
+package mockserver_test
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"net/http"
+	"strings"
+
+	client "github.com/BraspagDevelopers/mock-server-client"
+
+	"github.com/testcontainers/testcontainers-go"
+	"github.com/testcontainers/testcontainers-go/modules/mockserver"
+)
+
+func ExampleRunContainer() {
+	// runMockServerContainer {
+	ctx := context.Background()
+
+	mockserverContainer, err := mockserver.RunContainer(ctx, testcontainers.WithImage("mockserver/mockserver:5.15.0"))
+	if err != nil {
+		panic(err)
+	}
+
+	// Clean up the container
+	defer func() {
+		if err := mockserverContainer.Terminate(ctx); err != nil {
+			panic(err)
+		}
+	}()
+	// }
+
+	state, err := mockserverContainer.State(ctx)
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Println(state.Running)
+
+	// Output:
+	// true
+}
+
+func ExampleRunContainer_connect() {
+	// connectToMockServer {
+	ctx := context.Background()
+
+	mockserverContainer, err := mockserver.RunContainer(ctx, testcontainers.WithImage("mockserver/mockserver:5.15.0"))
+	if err != nil {
+		panic(err)
+	}
+
+	// Clean up the container
+	defer func() {
+		if err := mockserverContainer.Terminate(ctx); err != nil {
+			panic(err)
+		}
+	}()
+
+	url, err := mockserverContainer.URL(ctx)
+	if err != nil {
+		panic(err)
+	}
+	ms := client.NewClientURL(url)
+	// }
+
+	requestMatcher := client.RequestMatcher{
+		Method: http.MethodPost,
+		Path:   "/api/categories",
+	}
+	requestMatcher = requestMatcher.WithJSONFields(map[string]interface{}{"name": "Tools"})
+	err = ms.RegisterExpectation(client.NewExpectation(requestMatcher).WithResponse(client.NewResponseOK().WithJSONBody(map[string]any{"test": "value"})))
+	if err != nil {
+		panic(err)
+	}
+
+	httpClient := &http.Client{}
+	resp, err := httpClient.Post(url+"/api/categories", "application/json", strings.NewReader(`{"name": "Tools"}`))
+	if err != nil {
+		panic(err)
+	}
+
+	buf, err := io.ReadAll(resp.Body)
+	if err != nil {
+		panic(err)
+	}
+	resp.Body.Close()
+
+	fmt.Println(resp.StatusCode)
+	fmt.Println(string(buf))
+
+	err = ms.Verify(requestMatcher, client.Once())
+	fmt.Println(err == nil)
+
+	// Output:
+	// 200
+	// {
+	//   "test" : "value"
+	// }
+	// true
+}

modules/mockserver/go.mod

@@ -0,0 +1,56 @@
+module github.com/testcontainers/testcontainers-go/modules/mockserver
+
+go 1.20
+
+require (
+	github.com/BraspagDevelopers/mock-server-client v0.2.2
+	github.com/testcontainers/testcontainers-go v0.27.0
+)
+
+require (
+	dario.cat/mergo v1.0.0 // indirect
+	github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 // indirect
+	github.com/Microsoft/go-winio v0.6.1 // indirect
+	github.com/Microsoft/hcsshim v0.11.4 // indirect
+	github.com/cenkalti/backoff/v4 v4.2.1 // indirect
+	github.com/containerd/containerd v1.7.11 // indirect
+	github.com/containerd/log v0.1.0 // indirect
+	github.com/cpuguy83/dockercfg v0.3.1 // indirect
+	github.com/docker/distribution v2.8.2+incompatible // indirect
+	github.com/docker/docker v24.0.7+incompatible // indirect
+	github.com/docker/go-connections v0.4.0 // indirect
+	github.com/docker/go-units v0.5.0 // indirect
+	github.com/go-ole/go-ole v1.2.6 // indirect
+	github.com/go-resty/resty/v2 v2.3.0 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/google/uuid v1.5.0 // indirect
+	github.com/klauspost/compress v1.16.0 // indirect
+	github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
+	github.com/magiconair/properties v1.8.7 // indirect
+	github.com/moby/patternmatcher v0.6.0 // indirect
+	github.com/moby/sys/sequential v0.5.0 // indirect
+	github.com/moby/term v0.5.0 // indirect
+	github.com/morikuni/aec v1.0.0 // indirect
+	github.com/opencontainers/go-digest v1.0.0 // indirect
+	github.com/opencontainers/image-spec v1.1.0-rc5 // indirect
+	github.com/opencontainers/runc v1.1.5 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect
+	github.com/shirou/gopsutil/v3 v3.23.12 // indirect
+	github.com/shoenig/go-m1cpu v0.1.6 // indirect
+	github.com/sirupsen/logrus v1.9.3 // indirect
+	github.com/tklauser/go-sysconf v0.3.12 // indirect
+	github.com/tklauser/numcpus v0.6.1 // indirect
+	github.com/yusufpapurcu/wmi v1.2.3 // indirect
+	golang.org/x/exp v0.0.0-20230510235704-dd950f8aeaea // indirect
+	golang.org/x/mod v0.11.0 // indirect
+	golang.org/x/net v0.17.0 // indirect
+	golang.org/x/sys v0.15.0 // indirect
+	golang.org/x/tools v0.10.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20230711160842-782d3b101e98 // indirect
+	google.golang.org/grpc v1.58.3 // indirect
+	google.golang.org/protobuf v1.31.0 // indirect
+)
+
+replace github.com/testcontainers/testcontainers-go => ../..