From b75a5717a084c9e5a727c2e960f2b910abcb5ace Mon Sep 17 00:00:00 2001
From: Wojtek Kosior <koszko@koszko.org>
Date: Tue, 25 Jan 2022 09:37:34 +0100
Subject: add a repo querying HTML interface

---
 test/unit/utils.py | 78 +++++++++++++++++++++++++++++-------------------------
 1 file changed, 42 insertions(+), 36 deletions(-)

(limited to 'test/unit/utils.py')

diff --git a/test/unit/utils.py b/test/unit/utils.py
index 90a2ab7..6f0236d 100644
--- a/test/unit/utils.py
+++ b/test/unit/utils.py
@@ -202,43 +202,49 @@ def are_scripts_allowed(driver, nonce=None):
             ''',
             nonce)
 
-"""
-tab_id_responder is meant to be appended to background script of a test
-extension.
-"""
-tab_id_responder = '''
-function tell_tab_id(msg, sender, respond_cb) {
-    if (msg[0] === "learn_tab_id")
-        respond_cb(sender.tab.id);
-}
-browser.runtime.onMessage.addListener(tell_tab_id);
-'''
-
-"""
-tab_id_asker is meant to be appended to content script of a test extension.
-"""
-tab_id_asker = '''
-browser.runtime.sendMessage(["learn_tab_id"])
-    .then(tid => window.wrappedJSObject.haketilo_tab = tid);
-'''
-
-def run_content_script_in_new_window(driver, url):
+def mock_cacher(execute_in_page):
     """
-    Expect an extension to be loaded which had tab_id_responder and tab_id_asker
-    appended to its background and content scripts, respectively.
-    Open the provided url in a new tab, find its tab id and return it, with
-    current window changed back to the initial one.
+    Some parts of code depend on content/repo_query_cacher.js and
+    background/CORS_bypass_server.js running in their appropriate contexts. This
+    function modifies the relevant browser.runtime.sendMessage function to
+    perform fetch(), bypassing the cacher.
     """
-    initial_handle = driver.current_window_handle
-    handles = driver.window_handles
-    driver.execute_script('window.open(arguments[0], "_blank");', url)
-    WebDriverWait(driver, 10).until(lambda d: d.window_handles is not handles)
-    new_handle = [h for h in driver.window_handles if h not in handles][0]
-
-    driver.switch_to.window(new_handle)
+    execute_in_page(
+        '''{
+        const old_sendMessage = browser.tabs.sendMessage, old_fetch = fetch;
+        async function new_sendMessage(tab_id, msg) {
+            if (msg[0] !== "repo_query")
+                return old_sendMessage(tab_id, msg);
+
+            /* Use snapshotted fetch(), allow other test code to override it. */
+            const response = await old_fetch(msg[1]);
+            if (!response)
+                return {error: "Something happened :o"};
+
+            const result = {ok: response.ok, status: response.status};
+            try {
+                result.json = await response.json();
+            } catch(e) {
+                result.error_json = "" + e;
+            }
+            return result;
+        }
 
-    get_tab_id = lambda d: d.execute_script('return window.haketilo_tab;')
-    tab_id = WebDriverWait(driver, 10).until(get_tab_id)
+        browser.tabs.sendMessage = new_sendMessage;
+        }''')
 
-    driver.switch_to.window(initial_handle)
-    return tab_id
+"""
+Convenience snippet of code to retrieve a copy of given object with only those
+properties present which are DOM nodes. This makes it possible to easily access
+DOM nodes stored in a javascript object that also happens to contain some
+other properties that make it impossible to return from a Selenium script.
+"""
+nodes_props_code = '''\
+(obj => {
+    const result = {};
+    for (const [key, value] of Object.entries(obj)) {
+        if (value instanceof Node)
+            result[key] = value;
+    }
+    return result;
+})'''
-- 
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