Add tests for extractSharedData and proxyURL

test/body.js

@@ -0,0 +1,19 @@
+const tap = require("tap")
+const constants = require("../src/lib/constants")
+const {extractSharedData} = require("../src/lib/utils/body")
+const fs = require("fs").promises
+
+tap.test("extract shared data", async childTest => {
+	childTest.throws(() => extractSharedData(""), constants.symbols.NO_SHARED_DATA, "not found in blank")
+	{
+		const page = await fs.readFile("test/files/page-user-instagram.html", "utf8")
+		const sharedData = extractSharedData(page)
+		childTest.equal(sharedData.entry_data.ProfilePage[0].graphql.user.username, "instagram", "can extract user page")
+	}
+	{
+		const page = await fs.readFile("test/files/page-login.html", "utf8")
+		const sharedData = extractSharedData(page)
+		childTest.true(sharedData.entry_data.LoginAndSignupPage[0], "can extract login page")
+	}
+	childTest.end()
+})