Testing expression parsing

_test/general.test.php

 <?php
 require_once(__DIR__ . '/../syntax/grammar.php');
+require_once(__DIR__ . '/../syntax/exceptions.php');
 
 /**
  * General tests for the ifauthex plugin
@@ -67,6 +68,52 @@ class general_plugin_ifauthex_test extends DokuWikiTest
  'user && user || @group'
  );
 
+ const UNKNOWN_TOKEN_EXPRESSIONS = array(
+ '!(!@group & !@group && !@group)',
+ '!(!@group && !user && @group) | !(@group || user || @group)',
+ '!(!@group && @group || !user] && (!user || user && @group)',
+ '!(!@group && user) && !^!@group || @group || user)',
+ '!(!@group || <inject> !user && !user) || !(user || @group || !@group)',
+ '!(!@group || @group -- !@group) && (@group || @group && !@group)',
+ '!(!@group || user || user) && !(!user || > !user || !user)',
+ '!(!user && !@group) <|| (!@group || !user && @group)',
+ '!(!user && @group && @group) / && (user || !@group || user)',
+ '!(!user && user || : !user) && !(@group || !@group && user)'
+ );
+
+ const STRAY_TOKEN_EXPRESSIONS = array(
+ 'usr usr2',
+ 'user && @group) && (!user || !user || !@group)',
+ // Closed brackets alone are unmatched:
+ '@group && (usr) @another',
+ '(user || !user || !@group) || !user || !@group || @group)',
+ );
+
+ const UNMATCHED_WRAPPER_EXPRESSIONS = array(
+ '(user || !@group && @group && !(!@group || !user && !@group)',
+ '(user || @group || user) && (@group || !@group && @group'
+ );
+
+ const NOT_ENOUGH_ARGS_EXPRESSIONS = array(
+ '!(@group && user && @group) && (!@group && !)',
+ '!(@group || !@group || !@group) || (user &&)',
+ '!(@group || !user ||) || !(@)',
+ '!(@group || user && !user) && @',
+ '!(@group || user && !user) ||',
+ '@!usr', // @ takes "!", but when ! is parsed, no arg is left
+ '@@group', // @ takes "@", but when ! is parsed, no arg is left
+ );
+
+
+ const MALFORMED_EXPRESSIONS = array(
+ 'usr usr2', // More than one element in root
+ '()', // Subexpression must have one root
+ '(usr usr2)',
+ '@()', // Group takes exactly a literal
+ '@(group)'
+ );
+
+
  public function test_parse()
  {
  foreach (self::VALID_EXPRESSIONS as $expr) {
@@ -79,6 +126,76 @@ class general_plugin_ifauthex_test extends DokuWikiTest
  }
  }
 
+ public function test_unknown_token()
+ {
+ foreach (self::UNKNOWN_TOKEN_EXPRESSIONS as $expr) {
+ $exc = null;
+ try {
+ parse($expr);
+ } catch (Exception $e) {
+ $exc = $e;
+ }
+ $this->assertInstanceOf(\AST\UnknownTokenException::class, $exc);
+ }
+ }
+
+ public function test_unmatched_wrappers()
+ {
+ foreach (self::UNMATCHED_WRAPPER_EXPRESSIONS as $expr) {
+ $exc = null;
+ try {
+ parse($expr);
+ } catch (Exception $e) {
+ $exc = $e;
+ }
+ $this->assertInstanceOf(\AST\UnmatchedWrapperException::class, $exc);
+ }
+ }
+
+
+ public function test_not_enough_args()
+ {
+ foreach (self::NOT_ENOUGH_ARGS_EXPRESSIONS as $expr) {
+ $exc = null;
+ try {
+ parse($expr);
+ } catch (Exception $e) {
+ $exc = $e;
+ }
+ $this->assertInstanceOf(\AST\NotEnoughArgumentsException::class, $exc);
+ }
+ }
+
+ public function test_malformed()
+ {
+ foreach (self::MALFORMED_EXPRESSIONS as $expr) {
+ $exc = null;
+ try {
+ $ast = null;
+ // The expression must parse, but not validate
+ $this->assertNotNull($ast = parse($expr));
+ $ast->ensureWellFormed();
+ } catch (Exception $e) {
+ $exc = $e;
+ }
+ $this->assertInstanceOf(\AST\MalformedExpressionException::class, $exc);
+ }
+ }
+
+ public function test_empty_parentehses() {
+ // This must not throw. It's malformed, but it's parsed correctly.
+ $this->assertNotNull(parse('()'));
+ }
+
+
+
+ public function test_depth_limit()
+ {
+ global $EXPR_DEPTH_LIMIT;
+ $this->expectException(RuntimeException::class);
+ parse(str_repeat('(', $EXPR_DEPTH_LIMIT) . 'a && b' . str_repeat(')', $EXPR_DEPTH_LIMIT));
+ }
+
  /**
  * Simple test to make sure the plugin.info.txt is in correct format
  */