yq/pkg/yqlib/operator_keys_test.go

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package yqlib
import (
"testing"
)
var keysOperatorScenarios = []expressionScenario{
{
description: "Map keys",
document: `{dog: woof, cat: meow}`,
expression: `keys`,
expected: []string{
"D0, P[], (!!seq)::- dog\n- cat\n",
},
},
{
skipDoc: true,
document: `{}`,
expression: `keys`,
expected: []string{
"D0, P[], (!!seq)::[]\n",
},
},
{
description: "Array keys",
document: `[apple, banana]`,
expression: `keys`,
expected: []string{
"D0, P[], (!!seq)::- 0\n- 1\n",
},
},
{
skipDoc: true,
document: `[]`,
expression: `keys`,
expected: []string{
"D0, P[], (!!seq)::[]\n",
},
},
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{
description: "Retrieve array key",
document: "[1,2,3]",
expression: `.[1] | key`,
expected: []string{
"D0, P[1], (!!int)::1\n",
},
},
{
description: "Retrieve map key",
document: "a: thing",
expression: `.a | key`,
expected: []string{
"D0, P[a], (!!str)::a\n",
},
},
{
description: "No key",
document: "{}",
expression: `key`,
expected: []string{},
},
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{
description: "Update map key",
document: "a:\n x: 3\n y: 4",
expression: `(.a.x | key) = "meow"`,
expected: []string{
"D0, P[], (doc)::a:\n meow: 3\n y: 4\n",
},
},
{
description: "Get comment from map key",
document: "a: \n # comment on key\n x: 3\n y: 4",
expression: `.a.x | key | headComment`,
expected: []string{
"D0, P[a x], (!!str)::comment on key\n",
},
},
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}
func TestKeysOperatorScenarios(t *testing.T) {
for _, tt := range keysOperatorScenarios {
testScenario(t, &tt)
}
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documentScenarios(t, "keys", keysOperatorScenarios)
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}