tasks/common/metrics/registry_test.go

// The MIT License
//
// Copyright (c) 2020 Temporal Technologies Inc.  All rights reserved.
//
// Copyright (c) 2020 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

package metrics

import (
	"testing"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

func TestRegistryBuildCatalog_Ok(t *testing.T) {
	t.Parallel()

	r := registry{}
	r.register("foo", WithDescription("foo description"))
	r.register("bar", WithDescription("bar description"))
	c, err := r.buildCatalog()
	require.Nil(t, err)
	require.Equal(t, 2, len(c))
	require.Equal(t, "foo description", c["foo"].description)
	require.Equal(t, "bar description", c["bar"].description)
}

func TestRegistryBuildCatalog_ErrMetricAlreadyExists(t *testing.T) {
	t.Parallel()

	b := registry{}
	b.register("foo", WithDescription("foo description"))
	b.register("foo", WithDescription("bar description"))
	_, err := b.buildCatalog()
	assert.ErrorIs(t, err, errMetricAlreadyExists)
	assert.ErrorContains(t, err, "foo")
}