| 1 | package instancectl |
| 2 | |
| 3 | import ( |
| 4 | "strings" |
| 5 | "testing" |
| 6 | |
| 7 | "github.com/carlosframework/platform/internal/provision" |
| 8 | ) |
| 9 | |
| 10 | // Escape follows systemd-escape(1) for unit instance names. The cases are |
| 11 | // the ones our identifiers can produce (hosts are [a-z0-9.-]; a hashed |
| 12 | // identifier adds a leading underscore), plus the general rules so a |
| 13 | // surprise character can never yield an unloadable unit name. |
| 14 | func TestEscapeFollowsSystemd(t *testing.T) { |
| 15 | cases := map[string]string{ |
| 16 | "bill.go.tito.io": "bill.go.tito.io", |
| 17 | "bill-2.example.com": `bill\x2d2.example.com`, |
| 18 | "_aaaa-1234abcd": `_aaaa\x2d1234abcd`, |
| 19 | "a/b": "a-b", |
| 20 | ".hidden": `\x2ehidden`, |
| 21 | "x y": `x\x20y`, |
| 22 | "": "", |
| 23 | "UPPER_ok:1": "UPPER_ok:1", |
| 24 | } |
| 25 | for in, want := range cases { |
| 26 | if got := Escape(in); got != want { |
| 27 | t.Errorf("Escape(%q) = %q, want %q", in, got, want) |
| 28 | } |
| 29 | } |
| 30 | } |
| 31 | |
| 32 | func TestUnitAndSliceNamesAreKeyedByEscapedInstanceID(t *testing.T) { |
| 33 | host := "bill-2.example.com" |
| 34 | esc := `bill\x2d2.example.com` |
| 35 | if got := UnitName(RoleRun, host); got != "carlos-instance@"+esc+".service" { |
| 36 | t.Errorf("run unit = %q", got) |
| 37 | } |
| 38 | if got := UnitName(RoleSeed, host); got != "carlos-instance-seed@"+esc+".service" { |
| 39 | t.Errorf("seed unit = %q", got) |
| 40 | } |
| 41 | if got := UnitName(RoleSidecar, host); got != "carlos-instance-sidecar@"+esc+".service" { |
| 42 | t.Errorf("sidecar unit = %q", got) |
| 43 | } |
| 44 | if got := SliceName(host); got != "carlos-instances-"+esc+".slice" { |
| 45 | t.Errorf("slice = %q", got) |
| 46 | } |
| 47 | long := strings.Repeat("a", 60) + ".example.com" |
| 48 | if got := UnitName(RoleRun, long); !strings.HasPrefix(got, "carlos-instance@_") || !strings.HasSuffix(got, ".service") { |
| 49 | t.Errorf("long host unit = %q, want the hashed identifier", got) |
| 50 | } |
| 51 | if got, want := UnitName(RoleRun, long), "carlos-instance@"+Escape(provision.InstanceID(long))+".service"; got != want { |
| 52 | t.Errorf("long host unit = %q, want %q", got, want) |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | func TestParseUnitNameRoundTrips(t *testing.T) { |
| 57 | for _, role := range []Role{RoleRun, RoleSeed, RoleSidecar, RoleCmd} { |
| 58 | u := UnitName(role, "bill-2.example.com") |
| 59 | gotRole, esc, ok := ParseUnitName(u) |
| 60 | if !ok || gotRole != role || esc != `bill\x2d2.example.com` { |
| 61 | t.Errorf("ParseUnitName(%q) = %q %q %v", u, gotRole, esc, ok) |
| 62 | } |
| 63 | } |
| 64 | if got := UnitName(RoleCmd, "bill-2.example.com"); got != `carlos-instance-cmd@bill\x2d2.example.com.service` { |
| 65 | t.Errorf("cmd unit = %q", got) |
| 66 | } |
| 67 | for _, bad := range []string{"carlos-edge.service", "carlos-app@x.service", "carlos-instance@x.socket", "carlos-instance@.service", "carlos-instance-cmd@.service", "carlos-instances-x.slice"} { |
| 68 | if _, _, ok := ParseUnitName(bad); ok { |
| 69 | t.Errorf("ParseUnitName(%q) accepted", bad) |
| 70 | } |
| 71 | } |
| 72 | } |
| 73 | |
| 74 | func TestParseRole(t *testing.T) { |
| 75 | for _, s := range []string{"run", "seed", "sidecar", "cmd"} { |
| 76 | if r, ok := ParseRole(s); !ok || string(r) != s { |
| 77 | t.Errorf("ParseRole(%q) = %q %v", s, r, ok) |
| 78 | } |
| 79 | } |
| 80 | for _, s := range []string{"", "Run", "exec", "run ", "Cmd", "cmd-err"} { |
| 81 | if _, ok := ParseRole(s); ok { |
| 82 | t.Errorf("ParseRole(%q) accepted", s) |
| 83 | } |
| 84 | } |
| 85 | } |
| 86 | |
| 87 | func TestFileNames(t *testing.T) { |
| 88 | if got := LaunchFileName(RoleSidecar); got != "launch.sidecar.json" { |
| 89 | t.Errorf("LaunchFileName = %q", got) |
| 90 | } |
| 91 | if got := ExitRecordName(RoleRun, "abc123"); got != "exit.run.abc123.json" { |
| 92 | t.Errorf("ExitRecordName = %q", got) |
| 93 | } |
| 94 | if provision.ValidHostShape(ProbeDirName) { |
| 95 | t.Errorf("ProbeDirName %q is a valid host; it must never collide with one", ProbeDirName) |
| 96 | } |
| 97 | } |
| 98 | |
amadan