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// Copyright 2016 Canonical Ltd.
// Copyright 2016 Cloudbase Solutions
// Licensed under the LGPLv3, see LICENCE file for details.
package exec_test
import (
"fmt"
"os"
"time"
"github.com/juju/testing"
jc "github.com/juju/testing/checkers"
gc "gopkg.in/check.v1"
"github.com/juju/utils/clock"
"github.com/juju/utils/exec"
)
type execSuite struct {
testing.IsolationSuite
}
var _ = gc.Suite(&execSuite{})
func (*execSuite) TestWaitWithCancel(c *gc.C) {
params := exec.RunParams{
Commands: "sleep 100",
Clock: &mockClock{C: make(chan time.Time)},
}
err := params.Run()
c.Assert(err, gc.IsNil)
c.Assert(params.Process(), gc.Not(gc.IsNil))
cancelChan := make(chan struct{}, 1)
defer close(cancelChan)
cancelChan <- struct{}{}
result, err := params.WaitWithCancel(cancelChan)
c.Assert(err, gc.Equals, exec.ErrCancelled)
c.Assert(string(result.Stdout), gc.Equals, "")
c.Assert(string(result.Stderr), gc.Equals, "")
c.Assert(result.Code, gc.Equals, cancelErrCode)
}
func (s *execSuite) TestKillAbortedIfUnsuccessfull(c *gc.C) {
killCalled := false
mockChan := make(chan time.Time, 1)
defer close(mockChan)
params := exec.RunParams{
Commands: "sleep 100",
WorkingDir: "",
Environment: []string{},
Clock: &mockClock{C: mockChan},
KillProcess: func(*os.Process) error {
killCalled = true
return nil
},
}
err := params.Run()
c.Assert(err, gc.IsNil)
c.Assert(params.Process(), gc.Not(gc.IsNil))
cancelChan := make(chan struct{}, 1)
defer close(cancelChan)
cancelChan <- struct{}{}
mockChan <- time.Now()
res, err := params.WaitWithCancel(cancelChan)
c.Assert(err, gc.ErrorMatches, fmt.Sprintf("tried to kill process %d, but timed out", params.Process().Pid))
c.Assert(res, gc.IsNil)
c.Assert(killCalled, jc.IsTrue)
}
type mockClock struct {
clock.Clock
C <-chan time.Time
}
func (m *mockClock) After(t time.Duration) <-chan time.Time {
return m.C
}
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