First test for the http handler

http_request_test.go

@@ -0,0 +1,57 @@
+package veun_test
+
+import (
+	"context"
+	"io/ioutil"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/alecthomas/assert/v2"
+	"github.com/stanistan/veun"
+)
+
+func TestRequestBasicHandler(t *testing.T) {
+	var handler = veun.HTTPHandler{
+		veun.RequestRenderableFunc(func(r *http.Request) (veun.AsRenderable, error) {
+			return nil, nil
+		}),
+	}
+
+	mux := http.NewServeMux()
+
+	mux.Handle("/empty", handler)
+
+	server := httptest.NewServer(mux)
+	defer server.Close()
+
+	var sendRequest = func(t *testing.T, to string) (string, int, error) {
+		t.Helper()
+
+		req, err := http.NewRequestWithContext(context.TODO(), "GET", server.URL+to, nil)
+		assert.NoError(t, err)
+
+		res, err := http.DefaultClient.Do(req)
+		if err != nil {
+			return "", 0, err
+		}
+
+		defer res.Body.Close()
+
+		data, err := ioutil.ReadAll(res.Body)
+		assert.NoError(t, err)
+
+		return string(data), res.StatusCode, nil
+	}
+
+	t.Run("the root path is a real server that 404s", func(t *testing.T) {
+		_, code, _ := sendRequest(t, "/")
+		assert.Equal(t, 404, code)
+	})
+
+	t.Run("empty handler is indeed empty", func(t *testing.T) {
+		body, code, _ := sendRequest(t, "/empty")
+		assert.Equal(t, "", body)
+		assert.Equal(t, 200, code)
+	})
+}