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package_test.go
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package_test.go
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package smutje
import (
"io/ioutil"
"log"
"net"
"testing"
"io"
"bytes"
"strings"
"github.com/gfrey/gconn"
"github.com/pkg/errors"
)
const hA = "dc9ca0192ddf659c2a4ee8da844a3a3a"
const hB = "4d3a06c079be269b23716dfa7b9e7cfb"
const hC = "0adfc50e475d4271e1c98913e779a720"
const hAE, hAC, hAF = "+" + hA, "." + hA, "-" + hA
const hBE, hBC, hBF = "+" + hB, "." + hB, "-" + hB
const hCE, hCC, hCF = "+" + hC, "." + hC, "-" + hC
func TestProvision(t *testing.T) {
l := log.New(ioutil.Discard, "", 0)
tt := []struct {
curState []string
failIdx int
expState []string
}{
{nil, -1, []string{hAE, hBE, hCE}},
{[]string{hAE}, -1, []string{hAC, hBE, hCE}},
{[]string{hAF}, -1, []string{hAE, hBE, hCE}},
{[]string{hAE, hBE}, -1, []string{hAC, hBC, hCE}},
{[]string{hAE, hBF}, -1, []string{hAC, hBE, hCE}},
{[]string{hAE, hBE, hCE}, -1, []string{hAE, hBE, hCE}},
{[]string{hAE, hBE, hCF}, -1, []string{hAC, hBC, hCE}},
{[]string{hAC, hBC, hCC}, -1, []string{hAC, hBC, hCC}},
{nil, 0, []string{hAF}},
{nil, 1, []string{hAE, hBF}},
{nil, 2, []string{hAE, hBE, hCF}},
{[]string{"+a", "+b", "+c"}, 0, []string{hAF}},
{[]string{"+a", "+b", "+c"}, 1, []string{hAE, hBF}},
{[]string{"+a", "+b", "+c"}, 2, []string{hAE, hBE, hCF}},
// consider that cached elements won't result in execution (that is why the fail idx doesn't change
{[]string{hAE, "+b", "+c"}, 0, []string{hAC, hBF}},
{[]string{hAC, hBE, "+c"}, 0, []string{hAC, hBC, hCF}},
}
for i, tti := range tt {
client := new(testClient)
client.failIdx = -1
if tti.curState != nil {
client.expCommand = "cat /var/lib/smutje/foobar.log"
client.cmdOutput = strings.Join(tti.curState, "\n")
}
pkg := new(smPackage)
pkg.ID = "foobar"
pkg.Scripts = []smScript{
&bashScript{Script: "echo foo"},
&smutjeScript{rawCommand: ":write_file testdata/a b"},
&bashScript{Script: "echo bar"},
}
if err := pkg.Prepare(client, Attributes{}); err != nil {
t.Fatalf("didn't expect an error, got: %s", err)
}
client.curIdx = 0
client.failIdx = tti.failIdx
client.expCommand = ""
err := pkg.Provision(l, client)
if tti.failIdx == -1 && err != nil {
t.Errorf("%d: didn't expect an error, got: %s", i, err)
continue
} else if tti.failIdx != -1 && err == nil {
t.Errorf("%d: expected an error, got none", i)
continue
}
newState := pkg.state
if len(newState) != len(tti.expState) {
t.Errorf("%d: expected %d elements in new state, got %d", i, len(tti.expState), len(newState))
continue
}
for j, expState := range tti.expState {
if expState != newState[j] {
t.Errorf("%d: expected state %d to be %q, got %q", i, j, expState, newState[j])
}
}
}
}
type testClient struct {
failIdx int
curIdx int
expCommand string
cmdOutput string
}
func (tc *testClient) NewSession(cmd string, args ...string) (gconn.Session, error) {
s := new(testSession)
if tc.expCommand != "" {
if strings.Contains(cmd, tc.expCommand) || strings.Contains(strings.Join(args, " "), tc.expCommand) {
s.Stdout = bytes.NewBufferString(tc.cmdOutput)
} else {
return nil, errors.Errorf("expected %q to contain %q, it didn't", cmd, tc.expCommand)
}
}
if tc.curIdx == tc.failIdx {
s.fail = true
}
tc.curIdx++
return s, nil
}
func (tc *testClient) Close() error {
return nil
}
func (tc *testClient) Dial(n, addr string) (net.Conn, error) {
return nil, errors.Errorf("not supported")
}
type testSession struct {
Stdin *bytes.Buffer
Stdout *bytes.Buffer
Stderr *bytes.Buffer
fail bool
expCommand string
cmdOutput string
}
func (ts *testSession) Close() error {
return nil
}
func (ts *testSession) StdinPipe() (io.WriteCloser, error) {
ts.Stdin = bytes.NewBuffer(nil)
return &nopCloser{ts.Stdin}, nil
}
func (ts *testSession) StdoutPipe() (io.Reader, error) {
if ts.Stdout == nil {
ts.Stdout = bytes.NewBuffer(nil)
}
return ts.Stdout, nil
}
func (ts *testSession) StderrPipe() (io.Reader, error) {
ts.Stderr = bytes.NewBuffer(nil)
return ts.Stderr, nil
}
func (ts *testSession) Run() error {
if err := ts.Start(); err != nil {
return err
}
return ts.Wait()
}
func (ts *testSession) Start() error {
return nil
}
func (ts *testSession) Wait() error {
if ts.fail {
return errors.Errorf("asked to fail")
}
return nil
}
type nopCloser struct {
w io.Writer
}
func (n *nopCloser) Write(d []byte) (int, error) {
return n.w.Write(d)
}
func (*nopCloser) Close() error {
return nil
}