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// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Elasticsearch B.V. licenses this file to you under
// the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

package osd_df

import (
	"io/ioutil"
	"net/http"
	"net/http/httptest"
	"path/filepath"
	"testing"

	mbtest "github.com/elastic/beats/metricbeat/mb/testing"

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

func TestFetchEventContents(t *testing.T) {
	absPath, err := filepath.Abs("../_meta/testdata/")
	assert.NoError(t, err)

	response, err := ioutil.ReadFile(absPath + "/osd_df_sample_response.json")
	assert.NoError(t, err)

	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.WriteHeader(200)
		w.Header().Set("Content-Type", "application/json;")
		w.Write([]byte(response))
	}))
	defer server.Close()

	config := map[string]interface{}{
		"module":     "ceph",
		"metricsets": []string{"osd_df"},
		"hosts":      []string{server.URL},
	}

	f := mbtest.NewEventsFetcher(t, config)
	events, err := f.Fetch()
	event := events[0]

	t.Logf("%s/%s event: %+v", f.Module().Name(), f.Name(), event.StringToPrint())

	//check osd0 df info
	nodeInfo := events[0]
	assert.EqualValues(t, 0, nodeInfo["pg_num"])
	assert.EqualValues(t, 52325356, nodeInfo["total.byte"])
	assert.EqualValues(t, 1079496, nodeInfo["used.byte"])
	assert.EqualValues(t, 51245860, nodeInfo["available.byte"])
	assert.EqualValues(t, "hdd", nodeInfo["device_class"])
	assert.EqualValues(t, 0.020630456866839092, nodeInfo["used.pct"])
	assert.EqualValues(t, 0, nodeInfo["id"])
	assert.EqualValues(t, "osd.0", nodeInfo["name"])

	//check osd1 df info
	nodeInfo = events[1]
	assert.EqualValues(t, 0, nodeInfo["pg_num"])
	assert.EqualValues(t, 52325356, nodeInfo["total.byte"])
	assert.EqualValues(t, 1079496, nodeInfo["used.byte"])
	assert.EqualValues(t, 51245860, nodeInfo["available.byte"])
	assert.EqualValues(t, "hdd", nodeInfo["device_class"])
	assert.EqualValues(t, 0.020630456866839092, nodeInfo["used.pct"])
	assert.EqualValues(t, 1, nodeInfo["id"])
	assert.EqualValues(t, "osd.1", nodeInfo["name"])

}