add unit tests for httpclient

Author: hdiniz

httpclient/httpclient_test.go

@@ -0,0 +1,55 @@
+package httpclient
+
+import (
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestUserAgentHeader(t *testing.T) {
+	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		fmt.Fprint(w, r.Header.Get("User-Agent"))
+	}))
+	defer ts.Close()
+
+	client := NewWithConfig(&Config{
+		UserAgent: "test-user-agent",
+	})
+
+	request, err := http.NewRequest("GET", ts.URL, nil)
+	require.NoError(t, err)
+
+	response, err := client.Do(request)
+	require.NoError(t, err)
+
+	b, err := ioutil.ReadAll(response.Body)
+	require.NoError(t, err)
+
+	require.Equal(t, "test-user-agent", string(b))
+}
+
+func TestProxy(t *testing.T) {
+	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusNoContent)
+	}))
+	defer ts.Close()
+
+	proxyURL, err := url.Parse(ts.URL)
+	require.NoError(t, err)
+
+	client := NewWithConfig(&Config{
+		Proxy: proxyURL,
+	})
+
+	request, err := http.NewRequest("GET", "http://arduino.cc", nil)
+	require.NoError(t, err)
+
+	response, err := client.Do(request)
+	require.NoError(t, err)
+	require.Equal(t, http.StatusNoContent, response.StatusCode)
+}