test: see errors

tests/acceptance/ExceptionHandler.feature

@@ -0,0 +1,27 @@
+Feature: ExceptionHandler
+  If an exception is thrown while psalm analyzes the codebase, the status  code returned will not be 0
+
+  Background:
+    Given I have the following config
+      """
+      <?xml version="1.0"?>
+      <psalm totallyTyped="true">
+        <projectFiles>
+          <directory name="."/>
+          <ignoreFiles> <directory name="../../vendor"/> </ignoreFiles>
+        </projectFiles>
+        <plugins>
+          <pluginClass class="Psalm\LaravelPlugin\Plugin"/>
+        </plugins>
+      </psalm>
+      """
+
+  Scenario:
+    Given I have the following code
+    """
+    <?php
+      function get( // cause a parser error
+    """
+    When I run Psalm
+    Then I see these errors
+      | ParseError | Syntax error, unexpected EOF, expecting T_VARIABLE on line 2 |