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https://github.com/rclone/rclone.git
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401cf81034
This commit modernizes Go usage. This was done with:
go run golang.org/x/tools/gopls/internal/analysis/modernize/cmd/modernize@latest -fix -test ./...
Then files needed to be `go fmt`ed and a few comments needed to be
restored.
The modernizations include replacing
- if/else conditional assignment by a call to the built-in min or max functions added in go1.21
- sort.Slice(x, func(i, j int) bool) { return s[i] < s[j] } by a call to slices.Sort(s), added in go1.21
- interface{} by the 'any' type added in go1.18
- append([]T(nil), s...) by slices.Clone(s) or slices.Concat(s), added in go1.21
- loop around an m[k]=v map update by a call to one of the Collect, Copy, Clone, or Insert functions from the maps package, added in go1.21
- []byte(fmt.Sprintf...) by fmt.Appendf(nil, ...), added in go1.19
- append(s[:i], s[i+1]...) by slices.Delete(s, i, i+1), added in go1.21
- a 3-clause for i := 0; i < n; i++ {} loop by for i := range n {}, added in go1.22
69 lines
1.5 KiB
Go
69 lines
1.5 KiB
Go
//go:build !plan9 && !js
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package kv
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import (
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"context"
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"fmt"
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"sync"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestKvConcurrency(t *testing.T) {
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require.Equal(t, 0, len(dbMap), "no databases can be started initially")
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const threadNum = 5
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var wg sync.WaitGroup
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ctx := context.Background()
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results := make([]*DB, threadNum)
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wg.Add(threadNum)
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for i := range threadNum {
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go func(i int) {
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db, err := Start(ctx, "test", nil)
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require.NoError(t, err)
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require.NotNil(t, db)
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results[i] = db
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wg.Done()
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}(i)
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}
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wg.Wait()
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// must have a single multi-referenced db
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db := results[0]
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assert.Equal(t, 1, len(dbMap))
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assert.Equal(t, threadNum, db.refs)
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for i := range threadNum {
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assert.Equal(t, db, results[i])
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}
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for i := range threadNum {
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assert.Equal(t, 1, len(dbMap))
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err := db.Stop(false)
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assert.NoError(t, err, "unexpected error %v at retry %d", err, i)
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}
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assert.Equal(t, 0, len(dbMap), "must be closed in the end")
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err := db.Stop(false)
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assert.ErrorIs(t, err, ErrInactive, "missing expected stop indication")
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}
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func TestKvExit(t *testing.T) {
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require.Equal(t, 0, len(dbMap), "no databases can be started initially")
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const dbNum = 5
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ctx := context.Background()
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for i := range dbNum {
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facility := fmt.Sprintf("test-%d", i)
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for j := 0; j <= i; j++ {
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db, err := Start(ctx, facility, nil)
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require.NoError(t, err)
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require.NotNil(t, db)
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}
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}
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assert.Equal(t, dbNum, len(dbMap))
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Exit()
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assert.Equal(t, 0, len(dbMap))
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}
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