yq/pkg/yqlib/operator_anchors_aliases_test.go

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package yqlib
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import (
"testing"
)
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var specDocument = `- &CENTER { x: 1, y: 2 }
- &LEFT { x: 0, y: 2 }
- &BIG { r: 10 }
- &SMALL { r: 1 }
`
var expectedSpecResult = "D0, P[4], (!!map)::x: 1\ny: 2\nr: 10\n"
var simpleArrayRef = `item_value: &item_value
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value: true
thingOne:
name: item_1
<<: *item_value
thingTwo:
name: item_2
<<: *item_value
`
var expectedUpdatedArrayRef = `D0, P[], (doc)::item_value: &item_value
value: true
thingOne:
name: item_1
value: false
thingTwo:
name: item_2
!!merge <<: *item_value
`
var anchorOperatorScenarios = []expressionScenario{
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// {
// skipDoc: true,
// description: "merge anchor not map",
// document: "a: &a\n - 0\nc:\n <<: [*a]\n",
// expectedError: "merge anchor only supports maps, got !!seq instead",
// expression: "explode(.)",
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// },
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// {
// description: "Merge one map",
// subdescription: "see https://yaml.org/type/merge.html",
// document: specDocument + "- << : *CENTER\n r: 10\n",
// expression: ".[4] | explode(.)",
// expected: []string{expectedSpecResult},
// },
// {
// description: "Merge multiple maps",
// subdescription: "see https://yaml.org/type/merge.html",
// document: specDocument + "- << : [ *CENTER, *BIG ]\n",
// expression: ".[4] | explode(.)",
// expected: []string{"D0, P[4], (!!map)::r: 10\nx: 1\ny: 2\n"},
// },
// {
// description: "Override",
// subdescription: "see https://yaml.org/type/merge.html",
// document: specDocument + "- << : [ *BIG, *LEFT, *SMALL ]\n x: 1\n",
// expression: ".[4] | explode(.)",
// expected: []string{"D0, P[4], (!!map)::r: 10\nx: 1\ny: 2\n"},
// },
// {
// description: "Get anchor",
// document: `a: &billyBob cat`,
// expression: `.a | anchor`,
// expected: []string{
// "D0, P[a], (!!str)::billyBob\n",
// },
// },
// {
// description: "Set anchor",
// document: `a: cat`,
// expression: `.a anchor = "foobar"`,
// expected: []string{
// "D0, P[], (doc)::a: &foobar cat\n",
// },
// },
// {
// description: "Set anchor relatively using assign-update",
// document: `a: {b: cat}`,
// expression: `.a anchor |= .b`,
// expected: []string{
// "D0, P[], (doc)::a: &cat {b: cat}\n",
// },
// },
// {
// skipDoc: true,
// document: `a: {c: cat}`,
// expression: `.a anchor |= .b`,
// expected: []string{
// "D0, P[], (doc)::a: {c: cat}\n",
// },
// },
// {
// skipDoc: true,
// document: `a: {c: cat}`,
// expression: `.a anchor = .b`,
// expected: []string{
// "D0, P[], (doc)::a: {c: cat}\n",
// },
// },
// {
// description: "Get alias",
// document: `{b: &billyBob meow, a: *billyBob}`,
// expression: `.a | alias`,
// expected: []string{
// "D0, P[a], (!!str)::billyBob\n",
// },
// },
// {
// description: "Set alias",
// document: `{b: &meow purr, a: cat}`,
// expression: `.a alias = "meow"`,
// expected: []string{
// "D0, P[], (doc)::{b: &meow purr, a: *meow}\n",
// },
// },
// {
// description: "Set alias to blank does nothing",
// document: `{b: &meow purr, a: cat}`,
// expression: `.a alias = ""`,
// expected: []string{
// "D0, P[], (doc)::{b: &meow purr, a: cat}\n",
// },
// },
// {
// skipDoc: true,
// document: `{b: &meow purr, a: cat}`,
// expression: `.a alias = .c`,
// expected: []string{
// "D0, P[], (doc)::{b: &meow purr, a: cat}\n",
// },
// },
// {
// skipDoc: true,
// document: `{b: &meow purr, a: cat}`,
// expression: `.a alias |= .c`,
// expected: []string{
// "D0, P[], (doc)::{b: &meow purr, a: cat}\n",
// },
// },
// {
// description: "Set alias relatively using assign-update",
// document: `{b: &meow purr, a: {f: meow}}`,
// expression: `.a alias |= .f`,
// expected: []string{
// "D0, P[], (doc)::{b: &meow purr, a: *meow}\n",
// },
// },
// {
// description: "Explode alias and anchor",
// document: `{f : {a: &a cat, b: *a}}`,
// expression: `explode(.f)`,
// expected: []string{
// "D0, P[], (doc)::{f: {a: cat, b: cat}}\n",
// },
// },
// {
// description: "Explode with no aliases or anchors",
// document: `a: mike`,
// expression: `explode(.a)`,
// expected: []string{
// "D0, P[], (doc)::a: mike\n",
// },
// },
// {
// description: "Explode with alias keys",
// document: `{f : {a: &a cat, *a: b}}`,
// expression: `explode(.f)`,
// expected: []string{
// "D0, P[], (doc)::{f: {a: cat, cat: b}}\n",
// },
// },
// {
// description: "Explode with merge anchors",
// document: mergeDocSample,
// expression: `explode(.)`,
// expected: []string{`D0, P[], (doc)::foo:
// a: foo_a
// thing: foo_thing
// c: foo_c
// bar:
// b: bar_b
// thing: bar_thing
// c: bar_c
// foobarList:
// b: bar_b
// thing: foo_thing
// c: foobarList_c
// a: foo_a
// foobar:
// c: foo_c
// a: foo_a
// thing: foobar_thing
// `},
// },
// {
// skipDoc: true,
// document: mergeDocSample,
// expression: `.foo* | explode(.) | (. style="flow")`,
// expected: []string{
// "D0, P[foo], (!!map)::{a: foo_a, thing: foo_thing, c: foo_c}\n",
// "D0, P[foobarList], (!!map)::{b: bar_b, thing: foo_thing, c: foobarList_c, a: foo_a}\n",
// "D0, P[foobar], (!!map)::{c: foo_c, a: foo_a, thing: foobar_thing}\n",
// },
// },
// {
// skipDoc: true,
// document: mergeDocSample,
// expression: `.foo* | explode(explode(.)) | (. style="flow")`,
// expected: []string{
// "D0, P[foo], (!!map)::{a: foo_a, thing: foo_thing, c: foo_c}\n",
// "D0, P[foobarList], (!!map)::{b: bar_b, thing: foo_thing, c: foobarList_c, a: foo_a}\n",
// "D0, P[foobar], (!!map)::{c: foo_c, a: foo_a, thing: foobar_thing}\n",
// },
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// },
// {
// skipDoc: true,
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// document: `{f : {a: &a cat, b: &b {foo: *a}, *a: *b}}`,
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// expression: `explode(.f)`,
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// expected: []string{
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// "D0, P[], (doc)::{f: {a: cat, b: {foo: cat}, cat: {foo: cat}}}\n",
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// },
// },
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{
description: "Dereference and update a field",
subdescription: "Use explode with multiply to dereference an object",
document: simpleArrayRef,
expression: `.thingOne |= explode(.) * {"value": false}`,
expected: []string{expectedUpdatedArrayRef},
},
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}
func TestAnchorAliasOperatorScenarios(t *testing.T) {
for _, tt := range anchorOperatorScenarios {
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testScenario(t, &tt)
}
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documentOperatorScenarios(t, "anchor-and-alias-operators", anchorOperatorScenarios)
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}