Test fann error functions

tests/fann_get_errno_basic.phpt

@@ -0,0 +1,12 @@
+--TEST--
+Test function fann_get_errno() by calling it with its expected arguments
+--FILE--
+<?php
+
+$ann = fann_create_standard( 3, 2, 2, 1 );
+@fann_set_activation_function_layer( $ann, FANN_ELLIOT, 3 );
+var_dump( fann_get_errno( $ann ) );
+
+?>
+--EXPECTF--
+int(%d)

tests/fann_get_errstr_basic.phpt

@@ -0,0 +1,13 @@
+--TEST--
+Test function fann_get_errstr() by calling it with its expected arguments
+--FILE--
+<?php
+
+$ann = fann_create_standard( 3, 2, 2, 1 );
+@fann_set_activation_function_layer( $ann, FANN_ELLIOT, 3 );
+$err = fann_get_errstr( $ann );
+var_dump( strlen($err) > 0 );
+
+?>
+--EXPECTF--
+bool(true)

tests/fann_print_error_basic.phpt

@@ -0,0 +1,15 @@
+--TEST--
+Test function fann_reset_errno() by calling it with its expected arguments
+--FILE--
+<?php
+
+$ann = fann_create_standard( 3, 2, 2, 1 );
+fann_print_error( $ann );
+echo "\n";
+@fann_set_activation_function_layer( $ann, FANN_ELLIOT, 3 );
+fann_print_error( $ann );
+
+?>
+--EXPECTF--
+No error
+%A

tests/fann_reset_errno_basic.phpt

@@ -0,0 +1,16 @@
+--TEST--
+Test function fann_reset_errno() by calling it with its expected arguments
+--FILE--
+<?php
+
+$ann = fann_create_standard( 3, 2, 2, 1 );
+@fann_set_activation_function_layer( $ann, FANN_ELLIOT, 3 );
+$errno = fann_get_errno( $ann );
+var_dump( $errno > 0 );
+fann_reset_errno( $ann );
+var_dump( fann_get_errno( $ann ) );
+
+?>
+--EXPECT--
+bool(true)
+int(0)

tests/fann_reset_errstr_basic.phpt

@@ -0,0 +1,16 @@
+--TEST--
+Test function fann_reset_errstr() by calling it with its expected arguments
+--FILE--
+<?php
+
+$ann = fann_create_standard( 3, 2, 2, 1 );
+@fann_set_activation_function_layer( $ann, FANN_ELLIOT, 3 );
+$err = fann_get_errstr( $ann );
+var_dump( strlen($err) > 0 );
+fann_reset_errstr( $ann );
+var_dump( fann_get_errstr( $ann ) );
+
+?>
+--EXPECT--
+bool(true)
+string(0) ""