Fixes for php8.0.0beta3 (#608)

* Set $errcontext argument optional to support PHP 8

- Argument is optional and deprecated in PHP 7.2

* Getting ready for PHP8, handling changed error levels/handlers mostly

* php5 compat syntax

* Updated UndefinedTemplateVarTest for PHP8 (and disabled a check for PHP<5.6) and re-enabled php:nightly in travis config

* Attempt to fix travis runs for (almost) all php versions supported

* Fix unit tests for php8, force composer to think we are still php7 to pick a supported phpunit and being less specific about an error msg because PHP8 is in active development and the exact wording is changing.

* Fixed a unit test that accidentally passed on phpunit < 7 because of sloppy string comparison.

* changelog

* run travis in xenial where possible for latest php versions. Fix unit tests from freakingo over inconsistent error messages in php8-beta.

* Incorporated AnrDaemons suggestions, making composer figure out the required phpunit version instead of specifying it explicitly and removing a unneeded error supression (@).

Co-authored-by: Jorge Sá Pereira <me@jorgesapereira.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/tests/UnitTests/ConfigFileTests/file/ConfigVarTest.php b/tests/UnitTests/ConfigFileTests/file/ConfigVarTest.php
index 8a23ba3d..41faf101 100644
--- a/tests/UnitTests/ConfigFileTests/file/ConfigVarTest.php
+++ b/tests/UnitTests/ConfigFileTests/file/ConfigVarTest.php
@@ -403,7 +403,11 @@ class ConfigVarTest extends PHPUnit_Smarty
             $this->assertEquals("", $this->smarty->fetch('foo.tpl'));
         }
         catch (Exception $e) {
-            $this->assertEquals('Undefined variable: foo', $e->getMessage());
+	        if (PHP_VERSION_ID >= 80000) {
+		        $this->assertStringStartsWith('Undefined variable', $e->getMessage());
+	        } else {
+		        $this->assertStringStartsWith('Undefined variable', $e->getMessage());
+	        }
         }
     }
 }