// (c) 2019-2020, Ava Labs, Inc. All rights reserved.
// See the file LICENSE for licensing terms.

package snowball

import (
	"testing"
)

func TestParametersValid(t *testing.T) {
	p := Parameters{
		K:            1,
		Alpha:        1,
		BetaVirtuous: 1,
		BetaRogue:    1,
	}

	if err := p.Valid(); err != nil {
		t.Fatal(err)
	}
}

func TestParametersInvalidK(t *testing.T) {
	p := Parameters{
		K:            0,
		Alpha:        1,
		BetaVirtuous: 1,
		BetaRogue:    1,
	}

	if err := p.Valid(); err == nil {
		t.Fatalf("Should have failed due to invalid k")
	}
}

func TestParametersInvalidAlpha(t *testing.T) {
	p := Parameters{
		K:            1,
		Alpha:        0,
		BetaVirtuous: 1,
		BetaRogue:    1,
	}

	if err := p.Valid(); err == nil {
		t.Fatalf("Should have failed due to invalid alpha")
	}
}

func TestParametersInvalidBetaVirtuous(t *testing.T) {
	p := Parameters{
		K:            1,
		Alpha:        1,
		BetaVirtuous: 0,
		BetaRogue:    1,
	}

	if err := p.Valid(); err == nil {
		t.Fatalf("Should have failed due to invalid beta virtuous")
	}
}

func TestParametersInvalidBetaRogue(t *testing.T) {
	p := Parameters{
		K:            1,
		Alpha:        1,
		BetaVirtuous: 1,
		BetaRogue:    0,
	}

	if err := p.Valid(); err == nil {
		t.Fatalf("Should have failed due to invalid beta rogue")
	}
}