Add login functionality

1 files changed, 91 insertions, 0 deletions

diff --git a/js_lib_test.go b/js_lib_test.go
new file mode 100644
index 0000000..8d58c33
--- /dev/null
+++ b/js_lib_test.go
@@ -0,0 +1,91 @@
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+package flyscrape_test
+
+import (
+	"fmt"
+	"io"
+	"net/http"
+	"net/http/cookiejar"
+	"net/url"
+	"strings"
+	"testing"
+
+	"github.com/philippta/flyscrape"
+	"github.com/stretchr/testify/require"
+)
+
+func TestJSLibFetchDocument(t *testing.T) {
+	script := `
+    import { fetchDocument } from "flyscrape"
+
+    const doc = fetchDocument("https://example.com")
+    export const headline = doc.find("h1").text()
+    `
+
+	client := &http.Client{
+		Transport: flyscrape.MockTransport(200, html),
+	}
+
+	exports, err := flyscrape.Compile(script, flyscrape.NewJSLibrary(client))
+	require.NoError(t, err)
+
+	h, ok := exports["headline"].(string)
+	require.True(t, ok)
+	require.Equal(t, "headline", h)
+}
+
+func TestJSLibSubmitForm(t *testing.T) {
+	script := `
+    import { submitForm } from "flyscrape"
+
+    const doc = submitForm("https://example.com", {
+        "username": "foo",
+        "password": "bar",
+    })
+
+    export const text = doc.find("div").text()
+    `
+
+	var username, password string
+
+	jar, _ := cookiejar.New(nil)
+	client := &http.Client{
+		Jar: jar,
+		Transport: flyscrape.RoundTripFunc(func(r *http.Request) (*http.Response, error) {
+			username = r.FormValue("username")
+			password = r.FormValue("password")
+
+			resp := &http.Response{
+				StatusCode: 200,
+				Status:     fmt.Sprintf("%d %s", 200, http.StatusText(200)),
+				Body:       io.NopCloser(strings.NewReader(`<div>Login successful</div>`)),
+				Header:     http.Header{},
+			}
+
+			cookie := http.Cookie{
+				Name:   "example",
+				Value:  "Hello world!",
+				Path:   "/",
+				MaxAge: 3600,
+			}
+
+			resp.Header.Add("Set-Cookie", cookie.String())
+			return resp, nil
+		}),
+	}
+
+	exports, err := flyscrape.Compile(script, flyscrape.NewJSLibrary(client))
+	require.NoError(t, err)
+
+	text, ok := exports["text"].(string)
+	require.True(t, ok)
+	require.Equal(t, "Login successful", text)
+	require.Equal(t, "foo", username)
+	require.Equal(t, "bar", password)
+
+	u, _ := url.Parse("https://example.com")
+	require.NotEmpty(t, jar.Cookies(u))
+}