Updated phpunit dev dependency to v7

composer.json

@@ -22,16 +22,19 @@
     "support": {
         "issues": "https://github.com/alextselegidis/easyappointments/issues",
         "forum": "https://groups.google.com/forum/#!forum/easy-appointments",
-        "wiki": "http://easyappointments.org/docs.html#1.2.1/readme.md",
+        "wiki": "http://easyappointments.org/docs",
         "source": "https://github.com/alextselegidis/easyappointments"
     },
     "minimum-stability": "stable",
     "require-dev": {
-        "phpunit/phpunit": "^5.6"
+        "roave/security-advisories": "dev-master",
+        "phpunit/phpunit": "^7.4"
     },
     "require": {
         "php": ">=5.6",
-        "roave/security-advisories": "dev-master",
+        "ext-curl": "*",
+        "ext-json": "*",
+        "ext-mbstring": "*",
         "gregwar/captcha": "^1.1",
         "phpmailer/phpmailer": "^5.2",
         "codeigniter/framework": "^3.1.6",

phpunit.xml

@@ -1,24 +1,24 @@
 <phpunit
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/4.5/phpunit.xsd"
+    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/|version|/phpunit.xsd"
     backupGlobals="true"
     backupStaticAttributes="false"
     bootstrap="tests/phpunit/bootstrap.php"
+    cacheResult="false"
     cacheTokens="false"
     colors="false"
     convertErrorsToExceptions="true"
     convertNoticesToExceptions="true"
     convertWarningsToExceptions="true"
     forceCoversAnnotation="false"
-    mapTestClassNameToCoveredClassName="false"
-    printerClass="PHPUnit_TextUI_ResultPrinter"
+    printerClass="PHPUnit\TextUI\ResultPrinter"
     processIsolation="false"
     stopOnError="false"
     stopOnFailure="false"
     stopOnIncomplete="false"
     stopOnSkipped="false"
     stopOnRisky="false"
-    testSuiteLoaderClass="PHPUnit_Runner_StandardTestSuiteLoader"
+    testSuiteLoaderClass="PHPUnit\Runner\StandardTestSuiteLoader"
     timeoutForSmallTests="1"
     timeoutForMediumTests="10"
     timeoutForLargeTests="60"