|
| 1 | +package starlark |
| 2 | + |
| 3 | +import ( |
| 4 | + "reflect" |
| 5 | + "testing" |
| 6 | + |
| 7 | + "go.starlark.net/starlark" |
| 8 | + "gotest.tools/v3/assert" |
| 9 | +) |
| 10 | + |
| 11 | +func TestConvertFromStarlarkBasedOnValue(t *testing.T) { |
| 12 | + t.Run("primitives", func(t *testing.T) { |
| 13 | + intVal := convertFromStarlarkBasedOnValue(starlark.MakeInt(42)) |
| 14 | + assert.Equal(t, intVal, int64(42)) |
| 15 | + |
| 16 | + floatVal := convertFromStarlarkBasedOnValue(starlark.Float(3.14)) |
| 17 | + assert.Equal(t, floatVal, 3.14) |
| 18 | + |
| 19 | + stringVal := convertFromStarlarkBasedOnValue(starlark.String("hello")) |
| 20 | + assert.Equal(t, stringVal, "hello") |
| 21 | + |
| 22 | + boolVal := convertFromStarlarkBasedOnValue(starlark.Bool(true)) |
| 23 | + assert.Equal(t, boolVal, true) |
| 24 | + }) |
| 25 | + |
| 26 | + t.Run("list recursion", func(t *testing.T) { |
| 27 | + nestedList := starlark.NewList([]starlark.Value{starlark.Bool(true)}) |
| 28 | + list := starlark.NewList([]starlark.Value{ |
| 29 | + starlark.MakeInt(1), |
| 30 | + starlark.String("two"), |
| 31 | + nestedList, |
| 32 | + }) |
| 33 | + |
| 34 | + converted, ok := convertFromStarlarkBasedOnValue(list).([]any) |
| 35 | + if !ok { |
| 36 | + t.Fatalf("expected []any, got %T", converted) |
| 37 | + } |
| 38 | + |
| 39 | + assert.Equal(t, converted[0], int64(1)) |
| 40 | + assert.Equal(t, converted[1], "two") |
| 41 | + |
| 42 | + nested, ok := converted[2].([]any) |
| 43 | + if !ok { |
| 44 | + t.Fatalf("expected nested []any, got %T", converted[2]) |
| 45 | + } |
| 46 | + assert.Equal(t, nested[0], true) |
| 47 | + }) |
| 48 | + |
| 49 | + t.Run("dict recursion", func(t *testing.T) { |
| 50 | + list := starlark.NewList([]starlark.Value{starlark.MakeInt(3), starlark.String("four")}) |
| 51 | + |
| 52 | + dict := starlark.NewDict(0) |
| 53 | + assert.NilError(t, dict.SetKey(starlark.String("answer"), starlark.MakeInt(42))) |
| 54 | + assert.NilError(t, dict.SetKey(starlark.String("numbers"), list)) |
| 55 | + assert.NilError(t, dict.SetKey(starlark.MakeInt(1), starlark.String("one"))) |
| 56 | + |
| 57 | + converted, ok := convertFromStarlarkBasedOnValue(dict).(map[any]any) |
| 58 | + if !ok { |
| 59 | + t.Fatalf("expected map[any]any, got %T", converted) |
| 60 | + } |
| 61 | + |
| 62 | + assert.Equal(t, converted["answer"], int64(42)) |
| 63 | + numbers, ok := converted["numbers"].([]any) |
| 64 | + if !ok { |
| 65 | + t.Fatalf("expected numbers to be []any, got %T", converted["numbers"]) |
| 66 | + } |
| 67 | + assert.DeepEqual(t, numbers, []any{int64(3), "four"}) |
| 68 | + assert.Equal(t, converted[int64(1)], "one") |
| 69 | + }) |
| 70 | + |
| 71 | + t.Run("none value", func(t *testing.T) { |
| 72 | + assert.Equal(t, convertFromStarlarkBasedOnValue(starlark.None), nil) |
| 73 | + }) |
| 74 | + |
| 75 | + t.Run("default passthrough", func(t *testing.T) { |
| 76 | + tuple := starlark.Tuple{starlark.MakeInt(7)} |
| 77 | + out := convertFromStarlarkBasedOnValue(tuple) |
| 78 | + |
| 79 | + resultTuple, ok := out.(starlark.Tuple) |
| 80 | + if !ok { |
| 81 | + t.Fatalf("expected starlark.Tuple, got %T", out) |
| 82 | + } |
| 83 | + assert.Equal(t, len(resultTuple), len(tuple)) |
| 84 | + assert.Equal(t, resultTuple[0].Type(), tuple[0].Type()) |
| 85 | + assert.Equal(t, resultTuple[0].String(), tuple[0].String()) |
| 86 | + }) |
| 87 | +} |
| 88 | + |
| 89 | +func TestConvertToStarlarkSuccess(t *testing.T) { |
| 90 | + intVal, err := convertToStarlark(21) |
| 91 | + assert.NilError(t, err) |
| 92 | + intFromValue, convErr := starlark.AsInt32(intVal) |
| 93 | + assert.NilError(t, convErr) |
| 94 | + assert.Equal(t, intFromValue, 21) |
| 95 | + |
| 96 | + floatVal, err := convertToStarlark(1.5) |
| 97 | + assert.NilError(t, err) |
| 98 | + assert.Equal(t, float64(floatVal.(starlark.Float)), 1.5) |
| 99 | + |
| 100 | + stringVal, err := convertToStarlark("hello") |
| 101 | + assert.NilError(t, err) |
| 102 | + assert.Equal(t, string(stringVal.(starlark.String)), "hello") |
| 103 | + |
| 104 | + boolVal, err := convertToStarlark(true) |
| 105 | + assert.NilError(t, err) |
| 106 | + assert.Equal(t, bool(boolVal.(starlark.Bool)), true) |
| 107 | + |
| 108 | + listVal, err := convertToStarlark([]interface{}{1, "two", []interface{}{false, nil}}) |
| 109 | + assert.NilError(t, err) |
| 110 | + |
| 111 | + list, ok := listVal.(*starlark.List) |
| 112 | + if !ok { |
| 113 | + t.Fatalf("expected *starlark.List, got %T", listVal) |
| 114 | + } |
| 115 | + assert.Equal(t, list.Len(), 3) |
| 116 | + |
| 117 | + firstInt, _ := starlark.AsInt32(list.Index(0)) |
| 118 | + assert.Equal(t, int(firstInt), 1) |
| 119 | + |
| 120 | + assert.Equal(t, string(list.Index(1).(starlark.String)), "two") |
| 121 | + |
| 122 | + nestedVal := list.Index(2) |
| 123 | + nestedList, ok := nestedVal.(*starlark.List) |
| 124 | + if !ok { |
| 125 | + t.Fatalf("expected nested *starlark.List, got %T", nestedVal) |
| 126 | + } |
| 127 | + assert.Equal(t, nestedList.Len(), 2) |
| 128 | + assert.Equal(t, bool(nestedList.Index(0).(starlark.Bool)), false) |
| 129 | + assert.Equal(t, nestedList.Index(1), starlark.None) |
| 130 | + |
| 131 | + inputMap := map[interface{}]interface{}{ |
| 132 | + "answer": 42, |
| 133 | + "nested": []interface{}{true}, |
| 134 | + 7: "seven", |
| 135 | + "nilVal": nil, |
| 136 | + "float64": 3.5, |
| 137 | + } |
| 138 | + |
| 139 | + dictVal, err := convertToStarlark(inputMap) |
| 140 | + assert.NilError(t, err) |
| 141 | + |
| 142 | + dict, ok := dictVal.(*starlark.Dict) |
| 143 | + if !ok { |
| 144 | + t.Fatalf("expected *starlark.Dict, got %T", dictVal) |
| 145 | + } |
| 146 | + |
| 147 | + answer, found, err := dict.Get(starlark.String("answer")) |
| 148 | + assert.NilError(t, err) |
| 149 | + assert.Assert(t, found) |
| 150 | + answerInt, _ := starlark.AsInt32(answer) |
| 151 | + assert.Equal(t, int(answerInt), 42) |
| 152 | + |
| 153 | + nested, found, err := dict.Get(starlark.String("nested")) |
| 154 | + assert.NilError(t, err) |
| 155 | + assert.Assert(t, found) |
| 156 | + nestedList, ok = nested.(*starlark.List) |
| 157 | + if !ok { |
| 158 | + t.Fatalf("expected nested value to be *starlark.List, got %T", nested) |
| 159 | + } |
| 160 | + assert.Equal(t, nestedList.Len(), 1) |
| 161 | + assert.Equal(t, bool(nestedList.Index(0).(starlark.Bool)), true) |
| 162 | + |
| 163 | + intKeyVal, found, err := dict.Get(starlark.MakeInt(7)) |
| 164 | + assert.NilError(t, err) |
| 165 | + assert.Assert(t, found) |
| 166 | + assert.Equal(t, string(intKeyVal.(starlark.String)), "seven") |
| 167 | + |
| 168 | + nilVal, found, err := dict.Get(starlark.String("nilVal")) |
| 169 | + assert.NilError(t, err) |
| 170 | + assert.Assert(t, found) |
| 171 | + assert.Equal(t, nilVal, starlark.None) |
| 172 | + |
| 173 | + floatValFromMap, found, err := dict.Get(starlark.String("float64")) |
| 174 | + assert.NilError(t, err) |
| 175 | + assert.Assert(t, found) |
| 176 | + assert.Equal(t, float64(floatValFromMap.(starlark.Float)), 3.5) |
| 177 | +} |
| 178 | + |
| 179 | +func TestConvertToStarlarkErrors(t *testing.T) { |
| 180 | + _, err := convertToStarlark(struct{}{}) |
| 181 | + assert.Error(t, err, "unsupported type struct {}") |
| 182 | + |
| 183 | + _, err = convertToStarlark([]interface{}{struct{}{}}) |
| 184 | + assert.ErrorContains(t, err, "unsupported type struct {}") |
| 185 | + |
| 186 | + _, err = convertToStarlark(map[interface{}]interface{}{struct{}{}: "value"}) |
| 187 | + assert.ErrorContains(t, err, "unsupported type struct {}") |
| 188 | + |
| 189 | + _, err = convertToStarlark(map[interface{}]interface{}{"badValue": struct{}{}}) |
| 190 | + assert.ErrorContains(t, err, "unsupported type struct {}") |
| 191 | +} |
| 192 | + |
| 193 | +func TestConvertFromStarlarkSuccess(t *testing.T) { |
| 194 | + intVal, err := convertFromStarlark(starlark.MakeInt(11), reflect.TypeOf(0)) |
| 195 | + assert.NilError(t, err) |
| 196 | + assert.Equal(t, intVal.(int), 11) |
| 197 | + |
| 198 | + floatVal, err := convertFromStarlark(starlark.Float(4.2), reflect.TypeOf(float64(0))) |
| 199 | + assert.NilError(t, err) |
| 200 | + assert.Equal(t, floatVal.(float64), 4.2) |
| 201 | + |
| 202 | + stringVal, err := convertFromStarlark(starlark.String("hi"), reflect.TypeOf("")) |
| 203 | + assert.NilError(t, err) |
| 204 | + assert.Equal(t, stringVal.(string), "hi") |
| 205 | + |
| 206 | + boolVal, err := convertFromStarlark(starlark.Bool(true), reflect.TypeOf(true)) |
| 207 | + assert.NilError(t, err) |
| 208 | + assert.Equal(t, boolVal.(bool), true) |
| 209 | + |
| 210 | + list := starlark.NewList([]starlark.Value{starlark.MakeInt(1), starlark.MakeInt(2)}) |
| 211 | + sliceVal, err := convertFromStarlark(list, reflect.TypeOf([]int{})) |
| 212 | + assert.NilError(t, err) |
| 213 | + assert.DeepEqual(t, sliceVal, []int{1, 2}) |
| 214 | + |
| 215 | + dict := starlark.NewDict(0) |
| 216 | + assert.NilError(t, dict.SetKey(starlark.String("a"), starlark.MakeInt(1))) |
| 217 | + assert.NilError(t, dict.SetKey(starlark.String("b"), starlark.MakeInt(2))) |
| 218 | + |
| 219 | + mapVal, err := convertFromStarlark(dict, reflect.TypeOf(map[string]int{})) |
| 220 | + assert.NilError(t, err) |
| 221 | + assert.DeepEqual(t, mapVal, map[string]int{"a": 1, "b": 2}) |
| 222 | +} |
| 223 | + |
| 224 | +func TestConvertFromStarlarkErrors(t *testing.T) { |
| 225 | + _, err := convertFromStarlark(starlark.String("bad"), reflect.TypeOf(0)) |
| 226 | + assert.ErrorContains(t, err, "got string") |
| 227 | + |
| 228 | + _, err = convertFromStarlark(starlark.String("bad"), reflect.TypeOf(float64(0))) |
| 229 | + assert.Error(t, err, `failed to convert "bad" (type string) to float`) |
| 230 | + |
| 231 | + _, err = convertFromStarlark(starlark.MakeInt(1), reflect.TypeOf("")) |
| 232 | + assert.Error(t, err, "failed to convert 1 (type string) to string") |
| 233 | + |
| 234 | + _, err = convertFromStarlark(starlark.String("oops"), reflect.TypeOf(true)) |
| 235 | + assert.Error(t, err, `failed to convert "oops" (type string) to bool`) |
| 236 | + |
| 237 | + list := starlark.NewList([]starlark.Value{starlark.String("not an int")}) |
| 238 | + _, err = convertFromStarlark(list, reflect.TypeOf([]int{})) |
| 239 | + assert.ErrorContains(t, err, "got string") |
| 240 | + |
| 241 | + dict := starlark.NewDict(0) |
| 242 | + assert.NilError(t, dict.SetKey(starlark.String("key"), starlark.String("value"))) |
| 243 | + |
| 244 | + _, err = convertFromStarlark(dict, reflect.TypeOf(map[string]int{})) |
| 245 | + assert.ErrorContains(t, err, "got string") |
| 246 | +} |
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