| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | package pipeline |
| 4 | |
| 5 | import ( |
| 6 | "fmt" |
| 7 | "regexp" |
| 8 | "testing" |
| 9 | |
| 10 | "github.com/netdata/netdata/go/plugins/plugin/agent/discovery/sd/model" |
| 11 | |
| 12 | "github.com/stretchr/testify/assert" |
| 13 | ) |
| 14 | |
| 15 | var reSrString = regexp.MustCompile(`^{[^{}]+}$`) |
| 16 | |
| 17 | func TestSelector_String(t *testing.T) { |
| 18 | tests := map[string]struct { |
| 19 | sr selector |
| 20 | want string |
| 21 | wantRegexForm bool |
| 22 | }{ |
| 23 | "true selector": { |
| 24 | sr: trueSelector{}, |
| 25 | want: "{*}", |
| 26 | }, |
| 27 | "exact selector": { |
| 28 | sr: exactSelector("selector"), |
| 29 | wantRegexForm: true, |
| 30 | }, |
| 31 | "neg selector from exact": { |
| 32 | sr: negSelector{exactSelector("selector")}, |
| 33 | wantRegexForm: true, |
| 34 | }, |
| 35 | "neg selector from neg": { |
| 36 | sr: negSelector{negSelector{exactSelector("selector")}}, |
| 37 | wantRegexForm: true, |
| 38 | }, |
| 39 | "neg selector from or": { |
| 40 | sr: negSelector{orSelector{ |
| 41 | lhs: exactSelector("selector"), |
| 42 | rhs: exactSelector("selector"), |
| 43 | }}, |
| 44 | wantRegexForm: true, |
| 45 | }, |
| 46 | "neg selector from nested or": { |
| 47 | sr: negSelector{orSelector{ |
| 48 | lhs: orSelector{lhs: exactSelector("selector"), rhs: negSelector{exactSelector("selector")}}, |
| 49 | rhs: orSelector{lhs: exactSelector("selector"), rhs: negSelector{exactSelector("selector")}}, |
| 50 | }}, |
| 51 | wantRegexForm: true, |
| 52 | }, |
| 53 | "neg selector from nested and": { |
| 54 | sr: negSelector{andSelector{ |
| 55 | lhs: andSelector{lhs: exactSelector("selector"), rhs: negSelector{exactSelector("selector")}}, |
| 56 | rhs: andSelector{lhs: exactSelector("selector"), rhs: negSelector{exactSelector("selector")}}, |
| 57 | }}, |
| 58 | wantRegexForm: true, |
| 59 | }, |
| 60 | "or selector": { |
| 61 | sr: orSelector{ |
| 62 | lhs: orSelector{lhs: exactSelector("selector"), rhs: negSelector{exactSelector("selector")}}, |
| 63 | rhs: orSelector{lhs: exactSelector("selector"), rhs: negSelector{exactSelector("selector")}}, |
| 64 | }, |
| 65 | wantRegexForm: true, |
| 66 | }, |
| 67 | "and selector": { |
| 68 | sr: andSelector{ |
| 69 | lhs: andSelector{lhs: exactSelector("selector"), rhs: negSelector{exactSelector("selector")}}, |
| 70 | rhs: andSelector{lhs: exactSelector("selector"), rhs: negSelector{exactSelector("selector")}}, |
| 71 | }, |
| 72 | wantRegexForm: true, |
| 73 | }, |
| 74 | } |
| 75 | |
| 76 | for name, tc := range tests { |
| 77 | t.Run(name, func(t *testing.T) { |
| 78 | got := fmt.Sprintf("%s", tc.sr) |
| 79 | if tc.wantRegexForm { |
| 80 | assert.True(t, reSrString.MatchString(got)) |
| 81 | return |
| 82 | } |
| 83 | assert.Equal(t, tc.want, got) |
| 84 | }) |
| 85 | } |
| 86 | } |
| 87 | |
| 88 | func TestSelector_Matches(t *testing.T) { |
| 89 | tests := map[string]struct { |
| 90 | sr selector |
| 91 | tags model.Tags |
| 92 | want bool |
| 93 | }{ |
| 94 | "exact selector matches": { |
| 95 | sr: exactSelector("a"), |
| 96 | tags: model.Tags{"a": {}, "b": {}}, |
| 97 | want: true, |
| 98 | }, |
| 99 | "exact selector does not match": { |
| 100 | sr: exactSelector("c"), |
| 101 | tags: model.Tags{"a": {}, "b": {}}, |
| 102 | want: false, |
| 103 | }, |
| 104 | "neg selector matches": { |
| 105 | sr: negSelector{exactSelector("c")}, |
| 106 | tags: model.Tags{"a": {}, "b": {}}, |
| 107 | want: true, |
| 108 | }, |
| 109 | "neg selector does not match": { |
| 110 | sr: negSelector{exactSelector("a")}, |
| 111 | tags: model.Tags{"a": {}, "b": {}}, |
| 112 | want: false, |
| 113 | }, |
| 114 | "or selector matches": { |
| 115 | sr: orSelector{ |
| 116 | lhs: orSelector{lhs: exactSelector("c"), rhs: exactSelector("d")}, |
| 117 | rhs: orSelector{lhs: exactSelector("e"), rhs: exactSelector("b")}, |
| 118 | }, |
| 119 | tags: model.Tags{"a": {}, "b": {}}, |
| 120 | want: true, |
| 121 | }, |
| 122 | "or selector does not match": { |
| 123 | sr: orSelector{ |
| 124 | lhs: orSelector{lhs: exactSelector("c"), rhs: exactSelector("d")}, |
| 125 | rhs: orSelector{lhs: exactSelector("e"), rhs: exactSelector("f")}, |
| 126 | }, |
| 127 | tags: model.Tags{"a": {}, "b": {}}, |
| 128 | want: false, |
| 129 | }, |
| 130 | "and selector matches": { |
| 131 | sr: andSelector{ |
| 132 | lhs: andSelector{lhs: exactSelector("a"), rhs: exactSelector("b")}, |
| 133 | rhs: andSelector{lhs: exactSelector("c"), rhs: exactSelector("d")}, |
| 134 | }, |
| 135 | tags: model.Tags{"a": {}, "b": {}, "c": {}, "d": {}}, |
| 136 | want: true, |
| 137 | }, |
| 138 | "and selector does not match": { |
| 139 | sr: andSelector{ |
| 140 | lhs: andSelector{lhs: exactSelector("a"), rhs: exactSelector("b")}, |
| 141 | rhs: andSelector{lhs: exactSelector("c"), rhs: exactSelector("z")}, |
| 142 | }, |
| 143 | tags: model.Tags{"a": {}, "b": {}, "c": {}, "d": {}}, |
| 144 | want: false, |
| 145 | }, |
| 146 | } |
| 147 | |
| 148 | for name, tc := range tests { |
| 149 | t.Run(name, func(t *testing.T) { |
| 150 | assert.Equal(t, tc.want, tc.sr.matches(tc.tags)) |
| 151 | }) |
| 152 | } |
| 153 | } |
| 154 | |
| 155 | func TestParseSelector(t *testing.T) { |
| 156 | tests := map[string]struct { |
| 157 | wantSelector selector |
| 158 | wantErr bool |
| 159 | }{ |
| 160 | "": {wantSelector: trueSelector{}}, |
| 161 | "a": {wantSelector: exactSelector("a")}, |
| 162 | "Z": {wantSelector: exactSelector("Z")}, |
| 163 | "a_b": {wantSelector: exactSelector("a_b")}, |
| 164 | "a=b": {wantSelector: exactSelector("a=b")}, |
| 165 | "!a": {wantSelector: negSelector{exactSelector("a")}}, |
| 166 | "a b": {wantSelector: andSelector{lhs: exactSelector("a"), rhs: exactSelector("b")}}, |
| 167 | "a|b": {wantSelector: orSelector{lhs: exactSelector("a"), rhs: exactSelector("b")}}, |
| 168 | "*": {wantSelector: trueSelector{}}, |
| 169 | "!*": {wantSelector: negSelector{trueSelector{}}}, |
| 170 | "a b !c d|e f": { |
| 171 | wantSelector: andSelector{ |
| 172 | lhs: andSelector{ |
| 173 | lhs: andSelector{ |
| 174 | lhs: andSelector{lhs: exactSelector("a"), rhs: exactSelector("b")}, |
| 175 | rhs: negSelector{exactSelector("c")}, |
| 176 | }, |
| 177 | rhs: orSelector{ |
| 178 | lhs: exactSelector("d"), |
| 179 | rhs: exactSelector("e"), |
| 180 | }, |
| 181 | }, |
| 182 | rhs: exactSelector("f"), |
| 183 | }, |
| 184 | }, |
| 185 | "!": {wantErr: true}, |
| 186 | "a !": {wantErr: true}, |
| 187 | "a!b": {wantErr: true}, |
| 188 | "0a": {wantErr: true}, |
| 189 | "a b c*": {wantErr: true}, |
| 190 | "__": {wantErr: true}, |
| 191 | "a|b|c*": {wantErr: true}, |
| 192 | } |
| 193 | |
| 194 | for name, test := range tests { |
| 195 | t.Run(name, func(t *testing.T) { |
| 196 | sr, err := parseSelector(name) |
| 197 | |
| 198 | if test.wantErr { |
| 199 | assert.Nil(t, sr) |
| 200 | assert.Error(t, err) |
| 201 | } else { |
| 202 | assert.NoError(t, err) |
| 203 | assert.Equal(t, test.wantSelector, sr) |
| 204 | } |
| 205 | }) |
| 206 | } |
| 207 | } |