cli/api/client_test.go

package api

import (
	"bytes"
	"errors"
	"io/ioutil"
	"net/http"
	"testing"

	"github.com/cli/cli/pkg/httpmock"
	"github.com/stretchr/testify/assert"
)

func TestGraphQL(t *testing.T) {
	http := &httpmock.Registry{}
	client := NewClient(
		ReplaceTripper(http),
		AddHeader("Authorization", "token OTOKEN"),
	)

	vars := map[string]interface{}{"name": "Mona"}
	response := struct {
		Viewer struct {
			Login string
		}
	}{}

	http.Register(
		httpmock.GraphQL("QUERY"),
		httpmock.StringResponse(`{"data":{"viewer":{"login":"hubot"}}}`),
	)

	err := client.GraphQL("github.com", "QUERY", vars, &response)
	assert.NoError(t, err)
	assert.Equal(t, "hubot", response.Viewer.Login)

	req := http.Requests[0]
	reqBody, _ := ioutil.ReadAll(req.Body)
	assert.Equal(t, `{"query":"QUERY","variables":{"name":"Mona"}}`, string(reqBody))
	assert.Equal(t, "token OTOKEN", req.Header.Get("Authorization"))
}

func TestGraphQLError(t *testing.T) {
	http := &httpmock.Registry{}
	client := NewClient(ReplaceTripper(http))

	response := struct{}{}

	http.Register(
		httpmock.GraphQL(""),
		httpmock.StringResponse(`
			{ "errors": [
				{"message":"OH NO"},
				{"message":"this is fine"}
			  ]
			}
		`),
	)

	err := client.GraphQL("github.com", "", nil, &response)
	if err == nil || err.Error() != "GraphQL error: OH NO\nthis is fine" {
		t.Fatalf("got %q", err.Error())
	}
}

func TestRESTGetDelete(t *testing.T) {
	http := &httpmock.Registry{}

	client := NewClient(
		ReplaceTripper(http),
	)

	http.Register(
		httpmock.REST("DELETE", "applications/CLIENTID/grant"),
		httpmock.StatusStringResponse(204, "{}"),
	)

	r := bytes.NewReader([]byte(`{}`))
	err := client.REST("github.com", "DELETE", "applications/CLIENTID/grant", r, nil)
	assert.NoError(t, err)
}

func TestRESTWithFullURL(t *testing.T) {
	http := &httpmock.Registry{}
	client := NewClient(ReplaceTripper(http))

	http.Register(
		httpmock.REST("GET", "api/v3/user/repos"),
		httpmock.StatusStringResponse(200, "{}"))
	http.Register(
		httpmock.REST("GET", "user/repos"),
		httpmock.StatusStringResponse(200, "{}"))

	err := client.REST("example.com", "GET", "user/repos", nil, nil)
	assert.NoError(t, err)
	err = client.REST("example.com", "GET", "https://another.net/user/repos", nil, nil)
	assert.NoError(t, err)

	assert.Equal(t, "example.com", http.Requests[0].URL.Hostname())
	assert.Equal(t, "another.net", http.Requests[1].URL.Hostname())
}

func TestRESTError(t *testing.T) {
	fakehttp := &httpmock.Registry{}
	client := NewClient(ReplaceTripper(fakehttp))

	fakehttp.Register(httpmock.MatchAny, func(req *http.Request) (*http.Response, error) {
		return &http.Response{
			Request:    req,
			StatusCode: 422,
			Body:       ioutil.NopCloser(bytes.NewBufferString(`{"message": "OH NO"}`)),
			Header: map[string][]string{
				"Content-Type": {"application/json; charset=utf-8"},
			},
		}, nil
	})

	var httpErr HTTPError
	err := client.REST("github.com", "DELETE", "repos/branch", nil, nil)
	if err == nil || !errors.As(err, &httpErr) {
		t.Fatalf("got %v", err)
	}

	if httpErr.StatusCode != 422 {
		t.Errorf("expected status code 422, got %d", httpErr.StatusCode)
	}
	if httpErr.Error() != "HTTP 422: OH NO (https://api.github.com/repos/branch)" {
		t.Errorf("got %q", httpErr.Error())

	}
}

func TestHandleHTTPError_GraphQL502(t *testing.T) {
	req, err := http.NewRequest("GET", "https://api.github.com/user", nil)
	if err != nil {
		t.Fatal(err)
	}
	resp := &http.Response{
		Request:    req,
		StatusCode: 502,
		Body:       ioutil.NopCloser(bytes.NewBufferString(`{ "data": null, "errors": [{ "message": "Something went wrong" }] }`)),
		Header:     map[string][]string{"Content-Type": {"application/json"}},
	}
	err = HandleHTTPError(resp)
	if err == nil || err.Error() != "HTTP 502: Something went wrong (https://api.github.com/user)" {
		t.Errorf("got error: %v", err)
	}
}