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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2016 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package testutil
import (
"fmt"
"os"
"os/exec"
"path/filepath"
"gopkg.in/check.v1"
)
type mockCommandSuite struct{}
var _ = check.Suite(&mockCommandSuite{})
const (
UmountNoFollow = umountNoFollow
)
func (s *mockCommandSuite) TestMockCommand(c *check.C) {
mock := MockCommand(c, "cmd", "true")
defer mock.Restore()
err := exec.Command("cmd", "first-run", "--arg1", "arg2", "a space").Run()
c.Assert(err, check.IsNil)
err = exec.Command("cmd", "second-run", "--arg1", "arg2", "a %s").Run()
c.Assert(err, check.IsNil)
c.Assert(mock.Calls(), check.DeepEquals, [][]string{
{"cmd", "first-run", "--arg1", "arg2", "a space"},
{"cmd", "second-run", "--arg1", "arg2", "a %s"},
})
}
func (s *mockCommandSuite) TestMockCommandAlso(c *check.C) {
mock := MockCommand(c, "fst", "")
also := mock.Also("snd", "")
defer mock.Restore()
c.Assert(exec.Command("fst").Run(), check.IsNil)
c.Assert(exec.Command("snd").Run(), check.IsNil)
c.Check(mock.Calls(), check.DeepEquals, [][]string{{"fst"}, {"snd"}})
c.Check(mock.Calls(), check.DeepEquals, also.Calls())
}
func (s *mockCommandSuite) TestMockCommandConflictEcho(c *check.C) {
mock := MockCommand(c, "do-not-swallow-echo-args", "")
defer mock.Restore()
c.Assert(exec.Command("do-not-swallow-echo-args", "-E", "-n", "-e").Run(), check.IsNil)
c.Assert(mock.Calls(), check.DeepEquals, [][]string{
{"do-not-swallow-echo-args", "-E", "-n", "-e"},
})
}
func (s *mockCommandSuite) TestMockShellchecksWhenAvailable(c *check.C) {
tmpDir := c.MkDir()
mockShellcheck := MockCommand(c, "shellcheck", fmt.Sprintf(`cat > %s/input`, tmpDir))
defer mockShellcheck.Restore()
restore := MockShellcheckPath(mockShellcheck.Exe())
defer restore()
mock := MockCommand(c, "some-command", "echo some-command")
c.Assert(exec.Command("some-command").Run(), check.IsNil)
c.Assert(mock.Calls(), check.DeepEquals, [][]string{
{"some-command"},
})
c.Assert(mockShellcheck.Calls(), check.DeepEquals, [][]string{
{"shellcheck", "-s", "bash", "-"},
})
scriptData, err := os.ReadFile(mock.Exe())
c.Assert(err, check.IsNil)
c.Assert(string(scriptData), Contains, "\necho some-command\n")
data, err := os.ReadFile(filepath.Join(tmpDir, "input"))
c.Assert(err, check.IsNil)
c.Assert(data, check.DeepEquals, scriptData)
}
func (s *mockCommandSuite) TestMockNoShellchecksWhenNotAvailable(c *check.C) {
mockShellcheck := MockCommand(c, "shellcheck", `echo "i am not called"; exit 1`)
defer mockShellcheck.Restore()
restore := MockShellcheckPath("")
defer restore()
// This would fail with proper shellcheck due to SC2086: Double quote to
// prevent globbing and word splitting.
mock := MockCommand(c, "some-command", "echo $1")
c.Assert(exec.Command("some-command").Run(), check.IsNil)
c.Assert(mock.Calls(), check.DeepEquals, [][]string{
{"some-command"},
})
c.Assert(mockShellcheck.Calls(), check.HasLen, 0)
}
func (s *mockCommandSuite) TestMockCreateAbsPathDir(c *check.C) {
// this is an absolute path
dir := c.MkDir()
absPath := filepath.Join(dir, "this/is/nested/command")
mock := MockCommand(c, absPath, "")
c.Assert(exec.Command(absPath).Run(), check.IsNil)
c.Assert(mock.Calls(), check.DeepEquals, [][]string{
{"command"},
})
binDirRo := filepath.Join(dir, "ro")
err := os.MkdirAll(binDirRo, 0000)
c.Assert(err, check.IsNil)
absPathBad := filepath.Join(binDirRo, "this/fails/command")
exp := fmt.Sprintf(`cannot create the directory for mocked command "%[1]s/ro/this/fails/command": mkdir %[1]s/ro/this: permission denied`, dir)
c.Assert(func() { MockCommand(c, absPathBad, "") }, check.Panics, exp)
}
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