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fix: preserve ranges with no matching versions when simplifying #902

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fix: preserve ranges with no matching versions when simplifying #902

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4 changes: 4 additions & 0 deletions ranges/simplify.js
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,10 @@ module.exports = (versions, range, options) => {
set.push([first, null])
}

if (!set.length) {
return range
}

const ranges = []
for (const [min, max] of set) {
if (min === max) {
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10 changes: 10 additions & 0 deletions test/ranges/simplify.js
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@

const simplify = require('../../ranges/simplify.js')
const Range = require('../../classes/range.js')
const satisfies = require('../../functions/satisfies.js')
const t = require('tap')
const versions = [
'1.0.0',
Expand Down Expand Up @@ -42,3 +43,12 @@ t.equal(simplify(versions, '>=3.0.0 <3.1.0'), '3.0.0')
t.equal(simplify(versions, '3.0.0 || 3.1 || 3.2 || 3.3'), '>=3.0.0')
t.equal(simplify(versions, '1 || 2 || 3'), '*')
t.equal(simplify(versions, '2.1 || 2.2 || 2.3'), '2.1.0 - 2.3.1')

t.test('ranges with no matching versions', t => {
for (const range of ['^4.0.0', new Range('^4.0.0'), '<0.0.0-0']) {
const simplified = simplify(versions, range)
t.equal(simplified, range, 'preserves the original range')
t.same(versions.filter(v => satisfies(v, simplified)), [], 'still matches no versions')
}
t.end()
})