Files
grafana-zabbix/pkg/datasource/zabbix_test.go
2021-05-19 13:17:46 +03:00

135 lines
4.0 KiB
Go

package datasource
import (
"context"
"net/http"
"testing"
"time"
"github.com/alexanderzobnin/grafana-zabbix/pkg/cache"
"github.com/alexanderzobnin/grafana-zabbix/pkg/zabbix"
"github.com/grafana/grafana-plugin-sdk-go/backend"
"github.com/grafana/grafana-plugin-sdk-go/backend/log"
"github.com/stretchr/testify/assert"
)
var emptyParams = map[string]interface{}{}
type RoundTripFunc func(req *http.Request) *http.Response
func (f RoundTripFunc) RoundTrip(req *http.Request) (*http.Response, error) {
return f(req), nil
}
//NewTestClient returns *http.Client with Transport replaced to avoid making real calls
func NewTestClient(fn RoundTripFunc) *http.Client {
return &http.Client{
Transport: RoundTripFunc(fn),
}
}
var basicDatasourceInfo = &backend.DataSourceInstanceSettings{
ID: 1,
Name: "TestDatasource",
URL: "http://zabbix.org/zabbix",
JSONData: []byte(`{"username":"username", "password":"password", "cacheTTL":"10m"}`),
}
func mockZabbixQuery(method string, params ZabbixAPIParams) *zabbix.ZabbixAPIRequest {
return &zabbix.ZabbixAPIRequest{
Method: method,
Params: params,
}
}
func MockZabbixDataSource(body string, statusCode int) *ZabbixDatasourceInstance {
zabbixSettings, _ := readZabbixSettings(basicDatasourceInfo)
zabbixClient, _ := zabbix.MockZabbixClient(basicDatasourceInfo, body, statusCode)
return &ZabbixDatasourceInstance{
dsInfo: basicDatasourceInfo,
zabbix: zabbixClient,
Settings: zabbixSettings,
queryCache: NewDatasourceCache(cache.NoExpiration, 10*time.Minute),
logger: log.New(),
}
}
func MockZabbixDataSourceResponse(dsInstance *ZabbixDatasourceInstance, body string, statusCode int) *ZabbixDatasourceInstance {
zabbixClient, _ := zabbix.MockZabbixAPI(dsInstance.zabbix, body, statusCode)
dsInstance.zabbix = zabbixClient
return dsInstance
}
func TestLogin(t *testing.T) {
dsInstance := MockZabbixDataSource(`{"result":"secretauth"}`, 200)
err := dsInstance.zabbix.Login(context.Background())
assert.Nil(t, err)
assert.Equal(t, "secretauth", dsInstance.zabbix.GetAPI().GetAuth())
}
func TestLoginError(t *testing.T) {
dsInstance := MockZabbixDataSource(`{"result":""}`, 500)
err := dsInstance.zabbix.Login(context.Background())
assert.NotNil(t, err)
assert.Equal(t, "", dsInstance.zabbix.GetAPI().GetAuth())
}
func TestZabbixAPIQuery(t *testing.T) {
dsInstance := MockZabbixDataSource(`{"result":"test"}`, 200)
resp, err := dsInstance.ZabbixAPIQuery(context.Background(), mockZabbixQuery("test.get", emptyParams))
assert.Nil(t, err)
result, ok := resp.Result.(string)
assert.True(t, ok)
assert.Equal(t, "test", result)
}
func TestCachedQuery(t *testing.T) {
// Using methods with caching enabled
query := mockZabbixQuery("host.get", emptyParams)
dsInstance := MockZabbixDataSource(`{"result":"testOld"}`, 200)
// Run query first time
resp, err := dsInstance.ZabbixAPIQuery(context.Background(), query)
assert.Nil(t, err)
result, _ := resp.Result.(string)
assert.Equal(t, "testOld", result)
// Mock request with new value
dsInstance = MockZabbixDataSourceResponse(dsInstance, `{"result":"testNew"}`, 200)
// Should not run actual API query and return first result
resp, err = dsInstance.ZabbixAPIQuery(context.Background(), query)
assert.Nil(t, err)
result, _ = resp.Result.(string)
assert.Equal(t, "testOld", result)
}
func TestNonCachedQuery(t *testing.T) {
// Using methods with caching disabled
query := mockZabbixQuery("history.get", emptyParams)
dsInstance := MockZabbixDataSource(`{"result":"testOld"}`, 200)
// Run query first time
resp, err := dsInstance.ZabbixAPIQuery(context.Background(), query)
assert.Nil(t, err)
result, _ := resp.Result.(string)
assert.Equal(t, "testOld", result)
// Mock request with new value
dsInstance = MockZabbixDataSourceResponse(dsInstance, `{"result":"testNew"}`, 200)
// Should not run actual API query and return first result
resp, err = dsInstance.ZabbixAPIQuery(context.Background(), query)
assert.Nil(t, err)
result, _ = resp.Result.(string)
assert.Equal(t, "testNew", result)
}