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knx_listener_test.go
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knx_listener_test.go
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package knx_listener
import (
"fmt"
"reflect"
"testing"
"time"
"github.com/influxdata/telegraf/testutil"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/vapourismo/knx-go/knx"
"github.com/vapourismo/knx-go/knx/cemi"
"github.com/vapourismo/knx-go/knx/dpt"
)
const epsilon = 1e-3
func setValue(data dpt.DatapointValue, value interface{}) error {
d := reflect.Indirect(reflect.ValueOf(data))
if !d.CanSet() {
return fmt.Errorf("cannot set datapoint %v", data)
}
switch v := value.(type) {
case bool:
d.SetBool(v)
case float64:
d.SetFloat(v)
case int64:
d.SetInt(v)
case uint64:
d.SetUint(v)
default:
return fmt.Errorf("unknown type '%T' when setting value for DPT", value)
}
return nil
}
func TestRegularReceives_DPT(t *testing.T) {
// Define the test-cases
var testcases = []struct {
address string
dpt string
value interface{}
}{
{"1/0/1", "1.001", true},
{"1/0/2", "1.002", false},
{"1/0/3", "1.003", true},
{"1/0/9", "1.009", false},
{"1/1/0", "1.010", true},
{"5/0/1", "5.001", 12.157},
{"5/0/3", "5.003", 121.412},
{"5/0/4", "5.004", uint64(25)},
{"9/0/1", "9.001", 18.56},
{"9/0/4", "9.004", 243.84},
{"9/0/5", "9.005", 12.01},
{"9/0/7", "9.007", 59.32},
{"13/0/1", "13.001", int64(-15)},
{"13/0/2", "13.002", int64(183)},
{"13/1/0", "13.010", int64(-141)},
{"13/1/1", "13.011", int64(277)},
{"13/1/2", "13.012", int64(-4096)},
{"13/1/3", "13.013", int64(8192)},
{"13/1/4", "13.014", int64(-65536)},
{"13/1/5", "13.015", int64(2147483647)},
{"14/0/0", "14.000", -1.31},
{"14/0/1", "14.001", 0.44},
{"14/0/2", "14.002", 32.08},
// {"14/0/3", "14.003", 92.69},
// {"14/0/4", "14.004", 1.00794},
{"14/1/0", "14.010", 5963.78},
{"14/1/1", "14.011", 150.95},
}
acc := &testutil.Accumulator{}
// Setup the unit-under-test
measurements := make([]Measurement, 0, len(testcases))
for _, testcase := range testcases {
measurements = append(measurements, Measurement{"test", testcase.dpt, []string{testcase.address}})
}
listener := KNXListener{
ServiceType: "dummy",
Measurements: measurements,
Log: testutil.Logger{Name: "knx_listener"},
}
// Setup the listener to test
err := listener.Start(acc)
require.NoError(t, err)
client := listener.client.(*KNXDummyInterface)
tstart := time.Now()
// Send the defined test data
for _, testcase := range testcases {
addr, err := cemi.NewGroupAddrString(testcase.address)
require.NoError(t, err)
data, ok := dpt.Produce(testcase.dpt)
require.True(t, ok)
err = setValue(data, testcase.value)
require.NoError(t, err)
client.Send(knx.GroupEvent{
Command: knx.GroupWrite,
Destination: addr,
Data: data.Pack(),
})
}
// Give the accumulator some time to collect the data
acc.Wait(len(testcases))
// Stop the listener
listener.Stop()
tstop := time.Now()
// Check if we got what we expected
require.Len(t, acc.Metrics, len(testcases))
for i, m := range acc.Metrics {
assert.Equal(t, "test", m.Measurement)
assert.Equal(t, testcases[i].address, m.Tags["groupaddress"])
assert.Len(t, m.Fields, 1)
switch v := testcases[i].value.(type) {
case bool, int64, uint64:
assert.Equal(t, v, m.Fields["value"])
case float64:
assert.InDelta(t, v, m.Fields["value"], epsilon)
}
assert.True(t, !tstop.Before(m.Time))
assert.True(t, !tstart.After(m.Time))
}
}