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# httpmock [](https://travis-ci.org/jarcoal/httpmock)
Easy mocking of http responses from external resources.
## Install
Uses gopkg to read from `v1` branch:
go get gopkg.in/jarcoal/httpmock.v1
You can also use vendoring for the v1 branch if you feel so inclined.
Currently supports Go 1.7 but also works with 1.6 for now.
### Simple Example:
```go
func TestFetchArticles(t *testing.T) {
httpmock.Activate()
defer httpmock.DeactivateAndReset()
httpmock.RegisterResponder("GET", "https://api.mybiz.com/articles.json",
httpmock.NewStringResponder(200, `[{"id": 1, "name": "My Great Article"}]`))
// get count info
httpmock.GetTotalCallCount()
// get the amount of calls for the registered responder
info := httpmock.GetCallCountInfo()
info["GET https://api.mybiz.com/articles.json"] // number of GET calls made to https://api.mybiz.com/articles.json
// do stuff that makes a request to articles.json
}
```
### Advanced Example:
```go
func TestFetchArticles(t *testing.T) {
httpmock.Activate()
defer httpmock.DeactivateAndReset()
// our database of articles
articles := make([]map[string]interface{}, 0)
// mock to list out the articles
httpmock.RegisterResponder("GET", "https://api.mybiz.com/articles.json",
func(req *http.Request) (*http.Response, error) {
resp, err := httpmock.NewJsonResponse(200, articles)
if err != nil {
return httpmock.NewStringResponse(500, ""), nil
}
return resp, nil
},
)
// mock to add a new article
httpmock.RegisterResponder("POST", "https://api.mybiz.com/articles.json",
func(req *http.Request) (*http.Response, error) {
article := make(map[string]interface{})
if err := json.NewDecoder(req.Body).Decode(&article); err != nil {
return httpmock.NewStringResponse(400, ""), nil
}
articles = append(articles, article)
resp, err := httpmock.NewJsonResponse(200, article)
if err != nil {
return httpmock.NewStringResponse(500, ""), nil
}
return resp, nil
},
)
// do stuff that adds and checks articles
}
```
### [Ginkgo](https://onsi.github.io/ginkgo/) Example:
```go
// article_suite_test.go
import (
// ...
"github.com/jarcoal/httpmock"
)
// ...
var _ = BeforeSuite(func() {
// block all HTTP requests
httpmock.Activate()
})
var _ = BeforeEach(func() {
// remove any mocks
httpmock.Reset()
})
var _ = AfterSuite(func() {
httpmock.DeactivateAndReset()
})
// article_test.go
import (
// ...
"github.com/jarcoal/httpmock"
)
var _ = Describe("Articles", func() {
It("returns a list of articles", func() {
httpmock.RegisterResponder("GET", "https://api.mybiz.com/articles.json",
httpmock.NewStringResponder(200, `[{"id": 1, "name": "My Great Article"}]`))
// do stuff that makes a request to articles.json
})
})
```
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