for _, expected := range expecteds {
		expectedCmds = append(expectedCmds, expected.cmd)
	}
	if !reflect.DeepEqual(expectedCmds, fcmd.CombinedOutputLog) {
		allErrs = append(allErrs,
			fmt.Errorf("unexpected commands: %v, expected: %v", fcmd.CombinedOutputLog, expectedCmds))
	}

	var expectedPaths []string
	for _, expected := range expecteds {

	// only possibilities here are that we ran 1 command or we ran 0.
	if ct.execer.(*fakeexec.FakeExec).CommandCalls != 1 {
		return ""
	}
	return strings.Join(ct.fcmd.CombinedOutputLog[0], " ")
}

func TestExec(t *testing.T) {
	testCases := []struct {
		args      []string
		result    fakeexec.FakeAction
		expectErr bool
	}{
		{