79 lines
2.1 KiB
Go
79 lines
2.1 KiB
Go
package consul
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import (
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"context"
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"sync/atomic"
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"testing"
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"github.com/hashicorp/consul/sdk/testutil"
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"github.com/hashicorp/consul/sdk/testutil/retry"
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"github.com/stretchr/testify/require"
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)
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func TestLeaderRoutineManager(t *testing.T) {
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t.Parallel()
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var runs uint32
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var running uint32
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// tlog := testutil.NewCancellableTestLogger(t)
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// defer tlog.Cancel()
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mgr := NewLeaderRoutineManager(testutil.Logger(t))
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run := func(ctx context.Context) error {
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atomic.StoreUint32(&running, 1)
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defer atomic.StoreUint32(&running, 0)
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atomic.AddUint32(&runs, 1)
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<-ctx.Done()
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return nil
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}
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// IsRunning on unregistered service should be false
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require.False(t, mgr.IsRunning("not-found"))
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// start
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require.NoError(t, mgr.Start("run", run))
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require.True(t, mgr.IsRunning("run"))
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retry.Run(t, func(r *retry.R) {
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require.Equal(r, uint32(1), atomic.LoadUint32(&runs))
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require.Equal(r, uint32(1), atomic.LoadUint32(&running))
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})
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doneCh := mgr.Stop("run")
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require.NotNil(t, doneCh)
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<-doneCh
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// ensure the background go routine was actually cancelled
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retry.Run(t, func(r *retry.R) {
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require.Equal(r, uint32(1), atomic.LoadUint32(&runs))
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require.Equal(r, uint32(0), atomic.LoadUint32(&running))
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})
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// restart and stop
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require.NoError(t, mgr.Start("run", run))
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retry.Run(t, func(r *retry.R) {
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require.Equal(r, uint32(2), atomic.LoadUint32(&runs))
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require.Equal(r, uint32(1), atomic.LoadUint32(&running))
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})
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doneCh = mgr.Stop("run")
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require.NotNil(t, doneCh)
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<-doneCh
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retry.Run(t, func(r *retry.R) {
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require.Equal(r, uint32(0), atomic.LoadUint32(&running))
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})
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// start with a context
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ctx, cancel := context.WithCancel(context.Background())
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require.NoError(t, mgr.StartWithContext(ctx, "run", run))
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cancel()
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// The function should exit of its own accord due to the parent
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// context being canceled
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retry.Run(t, func(r *retry.R) {
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require.Equal(r, uint32(3), atomic.LoadUint32(&runs))
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require.Equal(r, uint32(0), atomic.LoadUint32(&running))
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// the task should automatically set itself to not running if
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// it exits early
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require.False(r, mgr.IsRunning("run"))
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})
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}
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