|
| 1 | +package cni |
| 2 | + |
| 3 | +import ( |
| 4 | + "os" |
| 5 | + "path/filepath" |
| 6 | + "strings" |
| 7 | + "testing" |
| 8 | +) |
| 9 | + |
| 10 | +const ( |
| 11 | + bridgeConflist = `{ |
| 12 | + "cniVersion": "1.0.0", |
| 13 | + "name": "cni-bridge", |
| 14 | + "plugins": [ |
| 15 | + {"type": "bridge", "bridge": "br0"} |
| 16 | + ] |
| 17 | + }` |
| 18 | + macvlanConflist = `{ |
| 19 | + "cniVersion": "1.0.0", |
| 20 | + "name": "cni-macvlan", |
| 21 | + "plugins": [ |
| 22 | + {"type": "macvlan", "master": "eth0"} |
| 23 | + ] |
| 24 | + }` |
| 25 | + hostNetConflist = `{ |
| 26 | + "cniVersion": "1.0.0", |
| 27 | + "name": "cni-host", |
| 28 | + "plugins": [ |
| 29 | + {"type": "host-local"} |
| 30 | + ] |
| 31 | + }` |
| 32 | +) |
| 33 | + |
| 34 | +func writeFile(t *testing.T, path, content string) { |
| 35 | + t.Helper() |
| 36 | + if err := os.WriteFile(path, []byte(content), 0o600); err != nil { |
| 37 | + t.Fatalf("write %s: %v", path, err) |
| 38 | + } |
| 39 | +} |
| 40 | + |
| 41 | +func TestLoadConfLists(t *testing.T) { |
| 42 | + t.Run("empty dir errors", func(t *testing.T) { |
| 43 | + dir := t.TempDir() |
| 44 | + _, _, err := loadConfLists(dir) |
| 45 | + if err == nil { |
| 46 | + t.Fatalf("expected error on empty dir, got nil") |
| 47 | + } |
| 48 | + if !strings.Contains(err.Error(), "no .conflist files") { |
| 49 | + t.Errorf("unexpected error: %v", err) |
| 50 | + } |
| 51 | + }) |
| 52 | + |
| 53 | + t.Run("non-conflist files ignored", func(t *testing.T) { |
| 54 | + dir := t.TempDir() |
| 55 | + writeFile(t, filepath.Join(dir, "10-something.conf"), bridgeConflist) |
| 56 | + writeFile(t, filepath.Join(dir, "20-readme.txt"), "ignored") |
| 57 | + _, _, err := loadConfLists(dir) |
| 58 | + if err == nil { |
| 59 | + t.Fatalf("expected error when only non-.conflist files present") |
| 60 | + } |
| 61 | + }) |
| 62 | + |
| 63 | + t.Run("single conflist becomes default", func(t *testing.T) { |
| 64 | + dir := t.TempDir() |
| 65 | + writeFile(t, filepath.Join(dir, "10-bridge.conflist"), bridgeConflist) |
| 66 | + lists, def, err := loadConfLists(dir) |
| 67 | + if err != nil { |
| 68 | + t.Fatalf("unexpected err: %v", err) |
| 69 | + } |
| 70 | + if def != "cni-bridge" { |
| 71 | + t.Errorf("default = %q, want cni-bridge", def) |
| 72 | + } |
| 73 | + if _, ok := lists["cni-bridge"]; !ok { |
| 74 | + t.Errorf("cni-bridge missing from %v", lists) |
| 75 | + } |
| 76 | + }) |
| 77 | + |
| 78 | + t.Run("default is alphabetically first by filename", func(t *testing.T) { |
| 79 | + dir := t.TempDir() |
| 80 | + // libcni.ConfFiles sorts by filename; lex order is 10-, 20-, 30-. |
| 81 | + writeFile(t, filepath.Join(dir, "30-host.conflist"), hostNetConflist) |
| 82 | + writeFile(t, filepath.Join(dir, "10-bridge.conflist"), bridgeConflist) |
| 83 | + writeFile(t, filepath.Join(dir, "20-macvlan.conflist"), macvlanConflist) |
| 84 | + |
| 85 | + lists, def, err := loadConfLists(dir) |
| 86 | + if err != nil { |
| 87 | + t.Fatalf("unexpected err: %v", err) |
| 88 | + } |
| 89 | + if def != "cni-bridge" { |
| 90 | + t.Errorf("default = %q, want cni-bridge (10- prefix wins)", def) |
| 91 | + } |
| 92 | + for _, want := range []string{"cni-bridge", "cni-macvlan", "cni-host"} { |
| 93 | + if _, ok := lists[want]; !ok { |
| 94 | + t.Errorf("missing conflist %q in %v", want, lists) |
| 95 | + } |
| 96 | + } |
| 97 | + if len(lists) != 3 { |
| 98 | + t.Errorf("got %d conflists, want 3", len(lists)) |
| 99 | + } |
| 100 | + }) |
| 101 | + |
| 102 | + t.Run("bad conflist surfaces parse error", func(t *testing.T) { |
| 103 | + dir := t.TempDir() |
| 104 | + writeFile(t, filepath.Join(dir, "bad.conflist"), "{not json") |
| 105 | + _, _, err := loadConfLists(dir) |
| 106 | + if err == nil { |
| 107 | + t.Fatalf("expected parse error, got nil") |
| 108 | + } |
| 109 | + }) |
| 110 | +} |
0 commit comments