From 7ebb3007d36c8e23d818b65ae6490c2145f4b76c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Adam=20Wr=C3=B3blewski?= <adam@adguard.com>
Date: Thu, 25 Apr 2024 12:18:59 +0200
Subject: [PATCH] Log information about not modified content Add a test

---
 .../trusted-replace-outbound-text.ts          |  8 ++++++--
 .../trusted-replace-outbound-text.test.js     | 19 +++++++++++++++++++
 2 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/src/scriptlets/trusted-replace-outbound-text.ts b/src/scriptlets/trusted-replace-outbound-text.ts
index 5995b2b7b..46f03603d 100644
--- a/src/scriptlets/trusted-replace-outbound-text.ts
+++ b/src/scriptlets/trusted-replace-outbound-text.ts
@@ -137,8 +137,12 @@ export function trustedReplaceOtboundText(
             const patternRegexp = toRegExp(textToReplace);
             const modifiedContent = textToReplace ? result.replace(patternRegexp, replacement) : result;
 
-            if (logModifiedContent && modifiedContent !== result) {
-                logMessage(source, `Modified text content: ${modifiedContent}`);
+            if (logModifiedContent) {
+                const message = modifiedContent !== result
+                    ? `Modified text content: ${modifiedContent}`
+                    : 'Text content was not modified';
+
+                logMessage(source, message);
             }
 
             return modifiedContent;
diff --git a/tests/scriptlets/trusted-replace-outbound-text.test.js b/tests/scriptlets/trusted-replace-outbound-text.test.js
index fd6d8710c..3e34fbe6d 100644
--- a/tests/scriptlets/trusted-replace-outbound-text.test.js
+++ b/tests/scriptlets/trusted-replace-outbound-text.test.js
@@ -66,6 +66,25 @@ test('replace text - log original and modified content - atob', (assert) => {
     assert.strictEqual(window.hit, 'FIRED', 'hit function fired');
 });
 
+test('text not matched - log original content and information about not modified content - atob', (assert) => {
+    console.log = (...args) => {
+        if (args.length === 1 && args[0].includes('Original text content:')) {
+            assert.ok(args[0].includes('Text not matched.'), 'should log original text in console');
+        }
+        if (args.length === 1 && args[0].includes('not modified')) {
+            assert.ok(args[0].includes('Text content was not modified'), 'log information about not modified content');
+        }
+        nativeConsole(...args);
+    };
+
+    runScriptlet(name, ['atob', 'NOT_MATCH', '', '', 'true']);
+
+    const text = btoa('Text not matched.');
+    const result = atob(text);
+    assert.deepEqual(result, 'Text not matched.', 'Text content is intact');
+    assert.strictEqual(window.hit, 'FIRED', 'hit function fired');
+});
+
 test('replace text - regular expression - atob', (assert) => {
     runScriptlet(name, ['atob', '/for.*?-/', 'regexp -']);
     const text = btoa('Test for regular expression - foo bar');