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'use strict'
const { test } = require('tap')
const { webidl } = require('../../lib/fetch/webidl')
test('Type(V)', (t) => {
const Type = webidl.util.Type
t.equal(Type(undefined), 'Undefined')
t.equal(Type(null), 'Null')
t.equal(Type(true), 'Boolean')
t.equal(Type('string'), 'String')
t.equal(Type(Symbol('symbol')), 'Symbol')
t.equal(Type(1.23), 'Number')
t.equal(Type(1n), 'BigInt')
t.equal(Type({ a: 'b' }), 'Object')
t.end()
})
test('ConvertToInt(V)', (t) => {
const ConvertToInt = webidl.util.ConvertToInt
t.equal(ConvertToInt(63, 64, 'signed'), 63, 'odd int')
t.equal(ConvertToInt(64.49, 64, 'signed'), 64)
t.equal(ConvertToInt(64.51, 64, 'signed'), 64)
const max = 2 ** 53
t.equal(ConvertToInt(max + 1, 64, 'signed'), max, 'signed pos')
t.equal(ConvertToInt(-max - 1, 64, 'signed'), -max, 'signed neg')
t.equal(ConvertToInt(max + 1, 64, 'unsigned'), max + 1, 'unsigned pos')
t.equal(ConvertToInt(-max - 1, 64, 'unsigned'), -max - 1, 'unsigned neg')
for (const signedness of ['signed', 'unsigned']) {
t.equal(ConvertToInt(Infinity, 64, signedness), 0)
t.equal(ConvertToInt(-Infinity, 64, signedness), 0)
t.equal(ConvertToInt(NaN, 64, signedness), 0)
}
for (const signedness of ['signed', 'unsigned']) {
t.throws(() => {
ConvertToInt(NaN, 64, signedness, {
enforceRange: true
})
}, TypeError)
t.throws(() => {
ConvertToInt(Infinity, 64, signedness, {
enforceRange: true
})
}, TypeError)
t.throws(() => {
ConvertToInt(-Infinity, 64, signedness, {
enforceRange: true
})
}, TypeError)
t.throws(() => {
ConvertToInt(2 ** 53 + 1, 32, 'signed', {
enforceRange: true
})
}, TypeError)
t.throws(() => {
ConvertToInt(-(2 ** 53 + 1), 32, 'unsigned', {
enforceRange: true
})
}, TypeError)
t.equal(
ConvertToInt(65.5, 64, signedness, {
enforceRange: true
}),
65
)
}
for (const signedness of ['signed', 'unsigned']) {
t.equal(
ConvertToInt(63.49, 64, signedness, {
clamp: true
}),
64
)
t.equal(
ConvertToInt(63.51, 64, signedness, {
clamp: true
}),
64
)
t.equal(
ConvertToInt(-0, 64, signedness, {
clamp: true
}),
0
)
}
t.equal(ConvertToInt(111, 2, 'signed'), -1)
t.end()
})
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