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package trace2hooks
import (
"context"
"encoding/json"
"regexp"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"gitlab.com/gitlab-org/gitaly/v16/internal/git/trace2"
"gitlab.com/gitlab-org/gitaly/v16/internal/testhelper"
"golang.org/x/time/rate"
)
func TestLogExporter_Handle(t *testing.T) {
current, err := time.Parse("2006-01-02T15:04:05Z", "2023-01-01T00:00:00Z")
require.NoError(t, err)
endTime := current.Add(7 * time.Second)
exampleTrace := createExampleTrace(current)
for _, tc := range []struct {
desc string
setup func(*testing.T) (context.Context, *trace2.Trace)
expectedTrace trace2.Trace
}{
{
desc: "receives trace consisting of root only",
setup: func(t *testing.T) (context.Context, *trace2.Trace) {
ctx := testhelper.Context(t)
return ctx, &trace2.Trace{
Thread: "main",
Name: "root",
StartTime: current,
FinishTime: endTime,
}
},
expectedTrace: trace2.Trace{
Thread: "main",
Name: "root",
StartTime: current,
FinishTime: endTime,
Metadata: map[string]string{"elapsed_ms": "7000"},
},
},
{
desc: "receives a complete trace",
setup: func(t *testing.T) (context.Context, *trace2.Trace) {
ctx := testhelper.Context(t)
return ctx, exampleTrace
},
expectedTrace: trace2.Trace{
Thread: "main",
Name: "root",
StartTime: current,
FinishTime: endTime,
Metadata: map[string]string{"elapsed_ms": "7000"},
Children: []*trace2.Trace{
{
Thread: "main",
Name: "version",
StartTime: current,
FinishTime: current.Add(1 * time.Second), Metadata: map[string]string{"exe": "2.42.0", "elapsed_ms": "1000"},
Depth: 1,
}, {
Thread: "main",
Name: "start",
StartTime: current.Add(1 * time.Second),
FinishTime: current.Add(2 * time.Second),
Metadata: map[string]string{"argv": "git fetch origin master", "elapsed_ms": "1000"},
Depth: 1,
}, {
Thread: "main",
Name: "def_repo",
StartTime: current.Add(2 * time.Second),
FinishTime: current.Add(3 * time.Second),
Metadata: map[string]string{"worktree": "/Users/userx123/Documents/gitlab-development-kit", "elapsed_ms": "1000"},
Depth: 1,
}, {
Thread: "main",
Name: "index:do_read_index",
StartTime: current.Add(3 * time.Second),
FinishTime: current.Add(6 * time.Second),
Metadata: map[string]string{"elapsed_ms": "3000"},
Depth: 1,
Children: []*trace2.Trace{
{
Thread: "main",
ChildID: "0",
Name: "cache_tree:read",
StartTime: current.Add(3 * time.Second),
FinishTime: current.Add(4 * time.Second),
Metadata: map[string]string{"elapsed_ms": "1000"},
Depth: 2,
},
{
Thread: "main",
ChildID: "0",
Name: "data:index:read/version",
StartTime: current.Add(4 * time.Second),
FinishTime: current.Add(5 * time.Second),
Metadata: map[string]string{"data": "2", "elapsed_ms": "1000"},
Depth: 2,
},
{
Thread: "main",
ChildID: "0",
Name: "data:index:read/cache_nr",
StartTime: current.Add(5 * time.Second),
FinishTime: current.Add(6 * time.Second),
Metadata: map[string]string{
"elapsed_ms": "1000",
"data": "1500",
},
Depth: 2,
},
},
}, {
Thread: "main",
Name: "submodule:parallel/fetch",
StartTime: current.Add(6 * time.Second),
FinishTime: current.Add(7 * time.Second),
Metadata: map[string]string{"elapsed_ms": "1000"},
Depth: 1,
},
},
},
},
} {
t.Run(tc.desc, func(t *testing.T) {
ctx, trace := tc.setup(t)
logger := testhelper.NewLogger(t)
hook := testhelper.AddLoggerHook(logger)
exporter := NewLogExporter(rate.NewLimiter(1, 1), logger)
// execute and assertions
err := exporter.Handle(ctx, trace)
require.NoError(t, err)
logEntry := hook.LastEntry()
assert.Equal(t, tc.expectedTrace.Thread, logEntry.Data["thread"])
assert.Equal(t, tc.expectedTrace.Name, logEntry.Data["name"])
assert.Equal(t, tc.expectedTrace.Metadata, logEntry.Data["metadata"])
assert.Equal(t, tc.expectedTrace.StartTime, logEntry.Data["start_time"])
assert.Equal(t, tc.expectedTrace.FinishTime, logEntry.Data["finish_time"])
var children []*trace2.Trace
childErr := json.Unmarshal(logEntry.Data["children"].(json.RawMessage), &children)
require.NoError(t, childErr)
assert.Equal(t, tc.expectedTrace.Children, children)
})
}
}
func TestLogExporter_rateLimitFailureMock(t *testing.T) {
errorMsg := "rate has exceeded current limit"
for _, tc := range []struct {
desc string
setup func(*testing.T) (context.Context, *trace2.Trace)
expectedError *regexp.Regexp
}{
{
desc: "rate limit exceeded",
setup: func(t *testing.T) (context.Context, *trace2.Trace) {
ctx := testhelper.Context(t)
return ctx, &trace2.Trace{
Thread: "main",
Name: "root",
StartTime: time.Time{},
FinishTime: time.Time{}.Add(1 * time.Second),
}
},
expectedError: regexp.MustCompile(errorMsg),
},
} {
t.Run(tc.desc, func(t *testing.T) {
ctx, trace := tc.setup(t)
logger := testhelper.SharedLogger(t)
rl := rate.NewLimiter(0, 1) // burst limit of 1, refreshing at 0 rps
exporter := LogExporter{rateLimiter: rl, logger: logger}
err := exporter.Handle(ctx, trace)
require.NoError(t, err)
err = exporter.Handle(ctx, trace)
require.Error(t, err)
require.Regexp(t, tc.expectedError, err)
})
}
}
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