pg_timetable/internal/scheduler/shell_test.go at 4d4f5f9eb15e9d568ae81547f2fae4407c09d101 · cybertec-postgresql/pg_timetable · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
package scheduler_test

import (
	"context"
	"encoding/json"
	"errors"
	"fmt"
	"os/exec"
	"strings"
	"testing"

	"github.com/cybertec-postgresql/pg_timetable/internal/config"
	"github.com/cybertec-postgresql/pg_timetable/internal/log"
	"github.com/cybertec-postgresql/pg_timetable/internal/pgengine"
	"github.com/cybertec-postgresql/pg_timetable/internal/scheduler"
	"github.com/pashagolub/pgxmock/v5"
	"github.com/stretchr/testify/assert"
)

type testCommander struct{}

// overwrite CombinedOutput function of os/exec so only parameter syntax and return codes are checked...
func (c testCommander) CombinedOutput(_ context.Context, command string, args ...string) ([]byte, error) {
	if strings.HasPrefix(command, "ping") {
		return []byte(fmt.Sprint(command, args)), nil
	}
	return []byte(fmt.Sprintf("Command %s not found", command)), &exec.Error{Name: command, Err: exec.ErrNotFound}
}

func TestShellCommand(t *testing.T) {
	scheduler.Cmd = testCommander{}
	var err error

	mock, err := pgxmock.NewPool() //
	assert.NoError(t, err)
	pge := pgengine.NewDB(mock, "--log-database-level=none")
	sch := scheduler.New(pge, log.Init(config.LoggingOpts{LogLevel: "panic", LogDBLevel: "none"}))
	ctx := context.Background()

	err = sch.ExecuteProgramCommand(ctx, &pgengine.ChainTask{}, []string{""})
	assert.EqualError(t, err, "program command cannot be empty", "Empty command should out, fail")

	err = sch.ExecuteProgramCommand(ctx, &pgengine.ChainTask{Command: "ping0"}, nil)
	assert.NoError(t, err, "Command with nil param is out, OK")

	err = sch.ExecuteProgramCommand(ctx, &pgengine.ChainTask{Command: "ping1"}, []string{})
	assert.NoError(t, err, "Command with empty array param is OK")

	err = sch.ExecuteProgramCommand(ctx, &pgengine.ChainTask{Command: "ping2"}, []string{""})
	assert.NoError(t, err, "Command with empty string param is OK")

	err = sch.ExecuteProgramCommand(ctx, &pgengine.ChainTask{Command: "ping3"}, []string{"[]"})
	assert.NoError(t, err, "Command with empty json array param is OK")

	err = sch.ExecuteProgramCommand(ctx, &pgengine.ChainTask{Command: "ping3"}, []string{"[null]"})
	assert.NoError(t, err, "Command with nil array param is OK")

	err = sch.ExecuteProgramCommand(ctx, &pgengine.ChainTask{Command: "ping4"}, []string{`["localhost"]`})
	assert.NoError(t, err, "Command with one param is OK")

	err = sch.ExecuteProgramCommand(ctx, &pgengine.ChainTask{Command: "ping5"}, []string{`["localhost", "-4"]`})
	assert.NoError(t, err, "Command with many params is OK")

	err = sch.ExecuteProgramCommand(ctx, &pgengine.ChainTask{Command: "pong"}, nil)
	assert.True(t, errors.Is(err, exec.ErrNotFound), "Unknown command should produce exec.Error")

	err = sch.ExecuteProgramCommand(ctx, &pgengine.ChainTask{Command: "ping5"}, []string{`{"param1": "localhost"}`})
	assert.IsType(t, (*json.UnmarshalTypeError)(nil), err, "Command should fail with malformed json parameter")
}