yq/pkg/yqlib/operator_unique_test.go

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package yqlib
import (
"testing"
)
var uniqueOperatorScenarios = []expressionScenario{
{
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description: "Unique array of scalars (string/numbers)",
subdescription: "Note that unique maintains the original order of the array.",
document: `[2,1,3,2]`,
expression: `unique`,
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expected: []string{
"D0, P[], (!!seq)::[2, 1, 3]\n",
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},
},
{
description: "Unique splat",
skipDoc: true,
document: `[2,1,2]`,
expression: `unique[]`,
expected: []string{
"D0, P[0], (!!int)::2\n",
"D0, P[1], (!!int)::1\n",
},
},
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{
description: "Unique nulls",
subdescription: "Unique works on the node value, so it considers different representations of nulls to be different",
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document: `[~,null, ~, null]`,
expression: `unique`,
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expected: []string{
"D0, P[], (!!seq)::[~, null]\n",
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},
},
{
description: "Unique all nulls",
subdescription: "Run against the node tag to unique all the nulls",
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document: `[~,null, ~, null]`,
expression: `unique_by(tag)`,
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expected: []string{
"D0, P[], (!!seq)::[~]\n",
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},
},
{
description: "Unique array objects",
document: `[{name: harry, pet: cat}, {name: billy, pet: dog}, {name: harry, pet: cat}]`,
expression: `unique`,
expected: []string{
"D0, P[], (!!seq)::[{name: harry, pet: cat}, {name: billy, pet: dog}]\n",
},
},
{
description: "Unique array of objects by a field",
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document: `[{name: harry, pet: cat}, {name: billy, pet: dog}, {name: harry, pet: dog}]`,
expression: `unique_by(.name)`,
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expected: []string{
"D0, P[], (!!seq)::[{name: harry, pet: cat}, {name: billy, pet: dog}]\n",
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},
},
{
description: "Unique array of arrays",
document: `[[cat,dog], [cat, sheep], [cat,dog]]`,
expression: `unique`,
expected: []string{
"D0, P[], (!!seq)::[[cat, dog], [cat, sheep]]\n",
},
},
{
skipDoc: true,
document: `[{name: harry, pet: cat}, {pet: fish}, {name: harry, pet: dog}]`,
expression: `unique_by(.name)`,
expected: []string{
"D0, P[], (!!seq)::[{name: harry, pet: cat}, {pet: fish}]\n",
},
},
{
description: "unique by splat",
skipDoc: true,
document: `[{name: harry, pet: cat}, {pet: fish}, {name: harry, pet: dog}]`,
expression: `unique_by(.name)[]`,
expected: []string{
"D0, P[0], (!!map)::{name: harry, pet: cat}\n",
"D0, P[1], (!!map)::{pet: fish}\n",
},
},
{
skipDoc: true,
document: `[{name: harry, pet: cat}, {pet: fish}, {name: harry, pet: dog}]`,
expression: `unique_by(.cat.dog)`,
expected: []string{
"D0, P[], (!!seq)::[{name: harry, pet: cat}]\n",
},
},
{
skipDoc: true,
document: "# abc\n[{name: harry, pet: cat}, {pet: fish}, {name: harry, pet: dog}]\n# xyz",
expression: `unique_by(.name)`,
expected: []string{
"D0, P[], (!!seq)::# abc\n[{name: harry, pet: cat}, {pet: fish}]\n# xyz\n",
},
},
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}
func TestUniqueOperatorScenarios(t *testing.T) {
for _, tt := range uniqueOperatorScenarios {
testScenario(t, &tt)
}
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documentOperatorScenarios(t, "unique", uniqueOperatorScenarios)
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}