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fix: coerce undefined to string (#680) #681

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fix: coerce undefined to string (#680) #681

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e61fb2c
fix: coerce undefined to string (#680)
kyleaupton Feb 13, 2024
92fe231
Update lib/serializer.js
kyleaupton Feb 14, 2024
6204045
Merge branch 'master' into fix-issue-680
kyleaupton Mar 1, 2024
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2 changes: 1 addition & 1 deletion lib/serializer.js
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Original file line number Diff line number Diff line change
Expand Up @@ -100,7 +100,7 @@ module.exports = class Serializer {

asString (str) {
if (typeof str !== 'string') {
if (str === null) {
if (str == null) {
return '""'
}
if (str instanceof Date) {
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28 changes: 28 additions & 0 deletions test/array.test.js
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Expand Up @@ -195,6 +195,34 @@ buildTest({
'@data': ['test']
})

test('array of strings with null and undefined elements coerced to empty string', (t) => {
t.plan(1)

const schema = {
type: 'object',
properties: {
foo: {
type: 'array',
items: {
type: 'string'
}
}
}
}

const stringify = build(schema)
const result = stringify({
foo: [
'foo',
'bar',
null,
undefined
]
})

t.equal(result, '{"foo":["foo","bar","",""]}')
})

test('invalid items throw', (t) => {
t.plan(1)
const schema = {
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