[php] Add more checks to some PHP testcases

Examples/test-suite/php/abstract_inherit_ok_runme.php

@@ -2,9 +2,24 @@
 
 require "tests.php";
 
-check::classes(array('Foo','Spam'));
-$spam=new Spam();
+// No new functions
+check::functions(array());
 
+check::classes(array('Foo','Spam'));
+
+// No new vars
+check::globals(array());
+
+// We shouldn't be able to instantiate abstract class Foo.
+$class = 'Foo';
+try {
+    $obj = eval("new $class();");
+    check::fail("Should not be able to instantiate abstract class $class");
+} catch (Error $e) {
+    check::equal($e->getMessage(), "Cannot instantiate abstract class $class", "Unexpected exception: {$e->getMessage()}");
+}
+
+$spam=new Spam();
 check::equal(0,$spam->blah(),"spam object method");
 
 check::done();

Examples/test-suite/php/arrays_scope_runme.php

@@ -10,5 +10,9 @@ check::classes(array('arrays_scope','Bar'));
 check::globals(array());
 
 $bar=new bar();
+$bar->blah($bar->adata, $bar->bdata, $bar->cdata);
+// Like C/C++, SWIG treats `int asize[ASIZE]` as `int*` so there's no checking
+// of the passed array size.
+$bar->blah($bar->bdata, $bar->cdata, $bar->adata);
 
 check::done();

Examples/test-suite/php/php_pragma_runme.php

@@ -2,6 +2,13 @@
 
 require "tests.php";
 
+// No new functions
+check::functions(array());
+// No new classes
+check::classes(array());
+// No new vars
+check::globals(array());
+
 check::equal('1.5',(new ReflectionExtension('php_pragma'))->getVersion(),"1.5==version(php_pragma)");
 
 check::done();