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terraform/config/lang/ast/stack_test.go

47 lines
601 B

package ast
import (
"reflect"
"testing"
)
func TestStack(t *testing.T) {
var s Stack
if s.Len() != 0 {
t.Fatalf("bad: %d", s.Len())
}
n := &LiteralNode{Value: 42}
s.Push(n)
if s.Len() != 1 {
t.Fatalf("bad: %d", s.Len())
}
actual := s.Pop()
if !reflect.DeepEqual(actual, n) {
t.Fatalf("bad: %#v", actual)
}
if s.Len() != 0 {
t.Fatalf("bad: %d", s.Len())
}
}
func TestStack_reset(t *testing.T) {
var s Stack
n := &LiteralNode{Value: 42}
s.Push(n)
if s.Len() != 1 {
t.Fatalf("bad: %d", s.Len())
}
s.Reset()
if s.Len() != 0 {
t.Fatalf("bad: %d", s.Len())
}
}