Warning: Use of undefined constant TXT - assumed 'TXT' (this will throw an Error in a future version of PHP) in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/themes/expresso_cup_hoe032/functions.php on line 1314 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 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/usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in 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/usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in 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/usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /usr/home/rafos/domains/javaczyherbata.pl/public_html/wp-content/plugins/crayon-syntax-highlighter/crayon_langs.class.php on line 340 Code without tests is bad code

Code without tests is bad code

Code without tests is bad code. It doesn’t matter how well written it is; it doesn’t matter how pretty or object-oriented or well-encapsulated it is. With tests, we can change the behavior of our code quickly and verifiably. Without them, we really don’t know if our code is getting better or worse.

Michael Feathers,
Working Effectively With Legacy Code

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