90 lines
2.0 KiB
Go
90 lines
2.0 KiB
Go
package exec
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import (
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"fmt"
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"github.com/influxdb/telegraf/testutil"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"testing"
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)
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const validJson = `
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{
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"status": "green",
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"num_processes": 82,
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"cpu": {
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"status": "red",
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"nil_status": null,
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"used": 8234,
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"free": 32
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},
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"percent": 0.81,
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"users": [0, 1, 2, 3]
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}`
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const malformedJson = `
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{
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"status": "green",
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`
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type runnerMock struct {
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out []byte
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err error
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}
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func newRunnerMock(out []byte, err error) Runner {
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return &runnerMock{out: out, err: err}
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}
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func (r runnerMock) Run(command string, args ...string) ([]byte, error) {
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if r.err != nil {
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return nil, r.err
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}
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return r.out, nil
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}
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func TestExec(t *testing.T) {
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runner := newRunnerMock([]byte(validJson), nil)
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command := Command{Command: "testcommand arg1", Name: "mycollector"}
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e := &Exec{runner: runner, Commands: []*Command{&command}}
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var acc testutil.Accumulator
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err := e.Gather(&acc)
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require.NoError(t, err)
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checkFloat := []struct {
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name string
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value float64
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}{
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{"mycollector_num_processes", 82},
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{"mycollector_cpu_used", 8234},
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{"mycollector_cpu_free", 32},
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{"mycollector_percent", 0.81},
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}
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for _, c := range checkFloat {
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assert.True(t, acc.CheckValue(c.name, c.value))
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}
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assert.Equal(t, len(acc.Points), 4, "non-numeric measurements should be ignored")
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}
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func TestExecMalformed(t *testing.T) {
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runner := newRunnerMock([]byte(malformedJson), nil)
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command := Command{Command: "badcommand arg1", Name: "mycollector"}
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e := &Exec{runner: runner, Commands: []*Command{&command}}
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var acc testutil.Accumulator
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err := e.Gather(&acc)
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require.Error(t, err)
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}
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func TestCommandError(t *testing.T) {
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runner := newRunnerMock(nil, fmt.Errorf("exit status code 1"))
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command := Command{Command: "badcommand", Name: "mycollector"}
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e := &Exec{runner: runner, Commands: []*Command{&command}}
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var acc testutil.Accumulator
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err := e.Gather(&acc)
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require.Error(t, err)
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}
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