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
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
package driver
import (
"errors"
"testing"
"github.com/stretchr/testify/require"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum-optimism/optimism/op-node/rollup/event"
"github.com/ethereum-optimism/optimism/op-service/testlog"
)
type fakeEnd struct {
closing bool
result error
}
func (d *fakeEnd) Closing() bool {
return d.closing
}
func (d *fakeEnd) Result() error {
return d.result
}
func TestDriver(t *testing.T) {
newTestDriver := func(t *testing.T, onEvent func(d *Driver, end *fakeEnd, ev event.Event)) *Driver {
logger := testlog.Logger(t, log.LevelInfo)
end := &fakeEnd{}
d := &Driver{
logger: logger,
end: end,
}
d.deriver = event.DeriverFunc(func(ev event.Event) bool {
onEvent(d, end, ev)
return true
})
return d
}
t.Run("insta complete", func(t *testing.T) {
d := newTestDriver(t, func(d *Driver, end *fakeEnd, ev event.Event) {
end.closing = true
})
require.NoError(t, d.RunComplete())
})
t.Run("insta error", func(t *testing.T) {
mockErr := errors.New("mock error")
d := newTestDriver(t, func(d *Driver, end *fakeEnd, ev event.Event) {
end.closing = true
end.result = mockErr
})
require.ErrorIs(t, mockErr, d.RunComplete())
})
t.Run("success after a few events", func(t *testing.T) {
count := 0
d := newTestDriver(t, func(d *Driver, end *fakeEnd, ev event.Event) {
if count > 3 {
end.closing = true
return
}
count += 1
d.Emit(TestEvent{})
})
require.NoError(t, d.RunComplete())
})
t.Run("error after a few events", func(t *testing.T) {
count := 0
mockErr := errors.New("mock error")
d := newTestDriver(t, func(d *Driver, end *fakeEnd, ev event.Event) {
if count > 3 {
end.closing = true
end.result = mockErr
return
}
count += 1
d.Emit(TestEvent{})
})
require.ErrorIs(t, mockErr, d.RunComplete())
})
t.Run("exhaust events", func(t *testing.T) {
count := 0
d := newTestDriver(t, func(d *Driver, end *fakeEnd, ev event.Event) {
if count < 3 { // stop generating events after a while, without changing end condition
d.Emit(TestEvent{})
}
count += 1
})
// No further processing to be done so evaluate if the claims output root is correct.
require.NoError(t, d.RunComplete())
})
t.Run("queued events", func(t *testing.T) {
count := 0
d := newTestDriver(t, func(d *Driver, end *fakeEnd, ev event.Event) {
if count < 3 {
d.Emit(TestEvent{})
d.Emit(TestEvent{})
}
count += 1
})
require.NoError(t, d.RunComplete())
// add 1 for initial event that RunComplete fires
require.Equal(t, 1+3*2, count, "must have queued up 2 events 3 times")
})
}