metric_string_test.go

/*
 * nagopher - Library for writing Nagios plugins in Go
 * Copyright (C) 2018-2019  Pascal Mathis
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package nagopher

import (
	"github.com/stretchr/testify/assert"
	"testing"
)

func TestNewStringMetric(t *testing.T) {
	// when
	metric1, err1 := NewStringMetric("string", "", "")
	metric2, err2 := NewStringMetric("", "", "")

	// then
	assert.NoError(t, err1)
	assert.Error(t, err2)
	assert.Implements(t, (*StringMetric)(nil), metric1)
	assert.Nil(t, metric2)
}

func TestMustNewStringMetric(t *testing.T) {
	assert.NotPanics(t, func() {
		MustNewStringMetric("valid", "", "")
	})

	assert.Panics(t, func() {
		MustNewStringMetric("", "", "")
	})
}

func TestStringMetric_ToNagiosValue(t *testing.T) {
	// given
	var value = "Hello World"

	// when
	metric := MustNewStringMetric("test", value, "")

	// then
	assert.Equal(t, value, metric.ToNagiosValue())
}

func TestStringMetric_Value(t *testing.T) {
	// given
	var value = "Hello World"

	// when
	metric := MustNewStringMetric("test", value, "")

	// then
	assert.Equal(t, value, metric.Value())
}