| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | package pipeline |
| 4 | |
| 5 | import ( |
| 6 | "encoding/json" |
| 7 | "testing" |
| 8 | |
| 9 | "github.com/stretchr/testify/assert" |
| 10 | "github.com/stretchr/testify/require" |
| 11 | "gopkg.in/yaml.v2" |
| 12 | ) |
| 13 | |
| 14 | func TestDiscovererPayload_RoundTrip(t *testing.T) { |
| 15 | tests := map[string]struct { |
| 16 | input string |
| 17 | unmarshal func([]byte, *DiscovererPayload) error |
| 18 | marshal func(DiscovererPayload) ([]byte, error) |
| 19 | assertOut func(*testing.T, string) |
| 20 | wantType string |
| 21 | }{ |
| 22 | "json": { |
| 23 | input: `{"docker":{"address":"unix:///var/run/docker.sock","timeout":"5s"}}`, |
| 24 | unmarshal: func(data []byte, p *DiscovererPayload) error { |
| 25 | return json.Unmarshal(data, p) |
| 26 | }, |
| 27 | marshal: func(p DiscovererPayload) ([]byte, error) { |
| 28 | return json.Marshal(p) |
| 29 | }, |
| 30 | wantType: "docker", |
| 31 | assertOut: func(t *testing.T, out string) { |
| 32 | assert.JSONEq(t, `{"docker":{"address":"unix:///var/run/docker.sock","timeout":"5s"}}`, out) |
| 33 | }, |
| 34 | }, |
| 35 | "yaml": { |
| 36 | input: "docker:\n address: unix:///var/run/docker.sock\n timeout: 5s\n", |
| 37 | unmarshal: func(data []byte, p *DiscovererPayload) error { |
| 38 | return yaml.Unmarshal(data, p) |
| 39 | }, |
| 40 | marshal: func(p DiscovererPayload) ([]byte, error) { |
| 41 | return yaml.Marshal(p) |
| 42 | }, |
| 43 | wantType: "docker", |
| 44 | assertOut: func(t *testing.T, out string) { |
| 45 | assert.Contains(t, out, "docker:") |
| 46 | assert.Contains(t, out, "address: unix:///var/run/docker.sock") |
| 47 | assert.Contains(t, out, "timeout: 5s") |
| 48 | }, |
| 49 | }, |
| 50 | } |
| 51 | |
| 52 | for name, tc := range tests { |
| 53 | t.Run(name, func(t *testing.T) { |
| 54 | var p DiscovererPayload |
| 55 | require.NoError(t, tc.unmarshal([]byte(tc.input), &p)) |
| 56 | require.Equal(t, tc.wantType, p.Type()) |
| 57 | |
| 58 | out, err := tc.marshal(p) |
| 59 | require.NoError(t, err) |
| 60 | tc.assertOut(t, string(out)) |
| 61 | }) |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | func TestDiscovererPayload_RejectsMultipleDiscoverers(t *testing.T) { |
| 66 | tests := map[string]struct { |
| 67 | input string |
| 68 | unmarshal func([]byte, *DiscovererPayload) error |
| 69 | }{ |
| 70 | "json": { |
| 71 | input: `{"docker":{},"snmp":{}}`, |
| 72 | unmarshal: func(data []byte, p *DiscovererPayload) error { |
| 73 | return json.Unmarshal(data, p) |
| 74 | }, |
| 75 | }, |
| 76 | "yaml": { |
| 77 | input: "docker: {}\nsnmp: {}\n", |
| 78 | unmarshal: func(data []byte, p *DiscovererPayload) error { |
| 79 | return yaml.Unmarshal(data, p) |
| 80 | }, |
| 81 | }, |
| 82 | } |
| 83 | |
| 84 | for name, tc := range tests { |
| 85 | t.Run(name, func(t *testing.T) { |
| 86 | var p DiscovererPayload |
| 87 | err := tc.unmarshal([]byte(tc.input), &p) |
| 88 | require.Error(t, err) |
| 89 | assert.Contains(t, err.Error(), "multiple discoverers configured") |
| 90 | }) |
| 91 | } |
| 92 | } |
| 93 | |
| 94 | func TestConfig_UnmarshalYAMLLegacyDiscover(t *testing.T) { |
| 95 | tests := map[string]struct { |
| 96 | input string |
| 97 | wantErr bool |
| 98 | wantErrContain []string |
| 99 | assertCfg func(*testing.T, Config) |
| 100 | }{ |
| 101 | "k8s merge": { |
| 102 | input: ` |
| 103 | name: test-k8s |
| 104 | discover: |
| 105 | - discoverer: k8s |
| 106 | k8s: |
| 107 | - role: pod |
| 108 | namespaces: |
| 109 | - default |
| 110 | - discoverer: k8s |
| 111 | k8s: |
| 112 | - role: service |
| 113 | services: |
| 114 | - id: "test-rule" |
| 115 | match: "true" |
| 116 | `, |
| 117 | assertCfg: func(t *testing.T, cfg Config) { |
| 118 | require.Equal(t, "k8s", cfg.Discoverer.Type()) |
| 119 | |
| 120 | var got []map[string]any |
| 121 | require.NoError(t, json.Unmarshal(cfg.Discoverer.Config, &got)) |
| 122 | require.Len(t, got, 2) |
| 123 | assert.Equal(t, "pod", got[0]["role"]) |
| 124 | assert.Equal(t, "service", got[1]["role"]) |
| 125 | }, |
| 126 | }, |
| 127 | "missing discoverer config fails": { |
| 128 | input: ` |
| 129 | name: test-invalid |
| 130 | discover: |
| 131 | - discoverer: docker |
| 132 | snmp: {} |
| 133 | services: |
| 134 | - id: "test-rule" |
| 135 | match: "true" |
| 136 | `, |
| 137 | wantErr: true, |
| 138 | wantErrContain: []string{"missing config for discoverer", "docker"}, |
| 139 | }, |
| 140 | } |
| 141 | |
| 142 | for name, tc := range tests { |
| 143 | t.Run(name, func(t *testing.T) { |
| 144 | var cfg Config |
| 145 | err := yaml.Unmarshal([]byte(tc.input), &cfg) |
| 146 | |
| 147 | if tc.wantErr { |
| 148 | require.Error(t, err) |
| 149 | for _, s := range tc.wantErrContain { |
| 150 | assert.Contains(t, err.Error(), s) |
| 151 | } |
| 152 | return |
| 153 | } |
| 154 | |
| 155 | require.NoError(t, err) |
| 156 | if tc.assertCfg != nil { |
| 157 | tc.assertCfg(t, cfg) |
| 158 | } |
| 159 | }) |
| 160 | } |
| 161 | } |