forked from cerc-io/ipld-eth-server
80 lines
1.8 KiB
Go
80 lines
1.8 KiB
Go
// Copyright (c) 2018 Arista Networks, Inc.
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// Use of this source code is governed by the Apache License 2.0
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// that can be found in the COPYING file.
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package influxlib
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import (
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"bytes"
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"errors"
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"fmt"
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"time"
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influx "github.com/influxdata/influxdb/client/v2"
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)
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// This will serve as a fake client object to test off of.
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// The idea is to provide a way to test the Influx Wrapper
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// without having it connected to the database.
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type fakeClient struct {
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writer bytes.Buffer
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failAll bool
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}
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func (w *fakeClient) Ping(timeout time.Duration) (time.Duration,
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string, error) {
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return 0, "", nil
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}
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func (w *fakeClient) Query(q influx.Query) (*influx.Response, error) {
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if w.failAll {
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return nil, errors.New("quering points failed")
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}
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return &influx.Response{Results: nil, Err: ""}, nil
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}
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func (w *fakeClient) Close() error {
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return nil
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}
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func (w *fakeClient) Write(bp influx.BatchPoints) error {
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if w.failAll {
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return errors.New("writing point failed")
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}
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w.writer.Reset()
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for _, p := range bp.Points() {
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fmt.Fprintf(&w.writer, p.String()+"\n")
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}
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return nil
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}
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func (w *fakeClient) qString() string {
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return w.writer.String()
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}
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/***************************************************/
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// NewMockConnection returns an influxDBConnection with
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// a "fake" client for offline testing.
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func NewMockConnection() (*InfluxDBConnection, error) {
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client := new(fakeClient)
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config := &InfluxConfig{
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Hostname: "localhost",
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Port: 8086,
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Protocol: HTTP,
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Database: "Test",
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}
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return &InfluxDBConnection{client, config}, nil
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}
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// GetTestBuffer returns the string that would normally
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// be written to influx DB
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func GetTestBuffer(con *InfluxDBConnection) (string, error) {
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fc, ok := con.Client.(*fakeClient)
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if !ok {
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return "", errors.New("Expected a fake client but recieved a real one")
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}
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return fc.qString(), nil
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}
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