/*
 * Public Domain Software
 *
 * I (Matthias Ladkau) am the author of the source code in this file.
 * I have placed the source code in this file in the public domain.
 *
 * For further information see: http://creativecommons.org/publicdomain/zero/1.0/
 */

package parser

import (
	"flag"
	"fmt"
	"os"
	"testing"
)

// Main function for all tests in this package

func TestMain(m *testing.M) {
	flag.Parse()

	res := m.Run()

	// Check if all nodes have been tested

	for _, n := range astNodeMap {
		if _, ok := usedNodes[n.Name]; !ok {
			fmt.Println("Not tested node: ", n.Name)
		}
	}

	os.Exit(res)
}

// Used nodes map which is filled during unit testing. Prefilled with tokens which
// will not be generated by the parser
//
var usedNodes = map[string]bool{
	NodeEOF: true, // Only used as end term
	"":      true, // No node e.g. semicolon - These nodes should never be part of an AST
}

func UnitTestParse(name string, input string) (*ASTNode, error) {
	n, err := ParseWithRuntime(name, input, &DummyRuntimeProvider{})

	return n, err
}

// Helper objects

type DummyRuntimeProvider struct {
}

func (d *DummyRuntimeProvider) Runtime(n *ASTNode) Runtime {

	// Make the encountered node as used

	usedNodes[n.Name] = true

	return nil
}