use regex patterns instead of fixed = TRUE, unsupported by tinytest < 1.3.1

Author: kevinushey

inst/tinytest/test_module.R

@@ -76,18 +76,18 @@ expect_equal( attr_Test_get_x_ref(test), 3.0 )
 expect_equal( attr_Test_get_x_pointer(test), 3.0 )
 
 ## module object arguments are validated before their address is handed to
-## C++, instead of reinterpreting or dereferencing whatever is there (#1523)
+## C++, instead of reinterpreting or dereferencing whatever is there (#1523);
+## patterns are regular expressions, as tinytest < 1.3.1 has no 'fixed'
 expect_error( Test_get_x_const_ref( new( ModuleWorld ) ),
-             "Expecting an object of C++ class 'ModuleTest', got an object of class 'ModuleWorld'",
-             fixed = TRUE )
+             "Expecting an object of C\\+\\+ class 'ModuleTest', got an object of class 'ModuleWorld'" )
 expect_error( attr_Test_get_x_ref( new( ModuleWorld ) ),
-             "got an object of class 'ModuleWorld'", fixed = TRUE )
+             "got an object of class 'ModuleWorld'" )
 expect_error( Test_get_x_pointer( unserialize( serialize( test, NULL ) ) ),
              "external pointer is not valid" )
 uninitialized <- new( ModuleTest )
 expect_error( Test_get_x_ref( uninitialized ), "not initialized" )
 expect_error( Test_get_x_const_pointer( 1 ),
-             "Expecting an object of C++ class 'ModuleTest'", fixed = TRUE )
+             "Expecting an object of C\\+\\+ class 'ModuleTest'" )
 
 ## objects of a class that derives() from the expected one are accepted
 expect_equal( ModuleBase_value( new( ModuleBase ) ), 1.0 )