// helper methods for testing
package test

import (
    "fmt"
    "path/filepath"
    "runtime"
    "testing"
)

func Assert(t *testing.T, condition bool, explanation interface{}) {
    if !condition {
        if _, file, line, ok := runtime.Caller(1); ok {
            short := filepath.Base(file)
            t.Fatal(fmt.Sprintf("%s:%d: %s", short, line, explanation))
        }
        t.Fatal(explanation)
    }
}