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70 lines
1.5 KiB
Go
70 lines
1.5 KiB
Go
//go:build !plan9 && !js
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// +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 := 0; i < threadNum; i++ {
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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 := 0; i < threadNum; i++ {
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assert.Equal(t, db, results[i])
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}
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for i := 0; i < threadNum; i++ {
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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 := 0; i < dbNum; i++ {
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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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