added testing support files

Author: dg

.travis.yml

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+language: php
+php:
+    - 5.3.3
+    - 5.4
+    - 5.5
+    - 5.6
+    - hhvm
+
+matrix:
+    allow_failures:
+        - php: hhvm
+
+script: vendor/bin/tester tests -s -c tests/php-unix.ini
+
+after_failure:
+    # Print *.actual content
+    - for i in $(find tests -name \*.actual); do echo "--- $i"; cat $i; echo; echo; done
+
+before_script:
+    # Install Nette Tester
+    - composer install --no-interaction --dev --prefer-source

tests/.gitignore

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+/*/output
+/test.log
+/tmp

tests/bootstrap.php

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+<?php
+
+// The Nette Tester command-line runner can be
+// invoked through the command: ../vendor/bin/tester .
+
+if (@!include __DIR__ . '/../vendor/autoload.php') {
+	echo 'Install Nette Tester using `composer update --dev`';
+	exit(1);
+}
+
+
+Tester\Environment::setup();
+date_default_timezone_set('Europe/Prague');
+
+
+function before(\Closure $function = NULL)
+{
+	static $val;
+	if (!func_num_args()) {
+		return ($val ? $val() : NULL);
+	}
+	$val = $function;
+}
+
+
+function test(\Closure $function)
+{
+	before();
+	$function();
+}

tests/php-unix.ini

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+[PHP]
+;extension_dir = "./ext"
+extension=json.so
+
+[Zend]
+;zend_extension="./ext/zend_extension"

tests/php-win.ini

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+[PHP]
+extension_dir = "./ext"
+
+[Zend]
+;zend_extension="./ext/php_xdebug-2.0.5-5.3-vc6.dll"