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stdlib: significantly speed up a test by forcing the array comparison to be specialized, and remove non-determinism

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This commit is contained in:
Dmitri Gribenko
2016-05-05 16:31:55 -06:00
parent d6c04816d6
commit 2565797e64
1 changed files with 12 additions and 30 deletions
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42
validation-test/stdlib/UnicodeUTFEncoders.swift
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@@ -1,4 +1,7 @@
// RUN: %target-run-simple-swift
// RUN: rm -rf %t
// RUN: mkdir -p %t
// RUN: %target-build-swift %s -o %t/a.out -O
// RUN: %target-run %t/a.out
// REQUIRES: executable_test
// REQUIRES: objc_interop
@@ -8,9 +11,6 @@ import StdlibUnittest
import Foundation
@_silgen_name("random") func random() -> UInt32
@_silgen_name("srandomdev") func srandomdev()
protocol TestableUnicodeCodec : UnicodeCodec {
associatedtype CodeUnit : Integer
static func encodingId() -> NSStringEncoding
@@ -91,13 +91,13 @@ func nsEncode<CodeUnit>(
remaining: nil)
}
class CodecTest<Codec : TestableUnicodeCodec> {
final class CodecTest<Codec : TestableUnicodeCodec> {
var used = 0
typealias CodeUnit = Codec.CodeUnit
var nsEncodeBuffer: [CodeUnit] = Array(repeating: 0, count: 4)
var encodeBuffer: [CodeUnit] = Array(repeating: 0, count: 4)
func testOne(_ scalar: UnicodeScalar) {
final func testOne(_ scalar: UnicodeScalar) {
/* Progress reporter
if (scalar.value % 0x1000) == 0 {
print("\(asHex(scalar.value))")
@@ -126,7 +126,7 @@ class CodecTest<Codec : TestableUnicodeCodec> {
scalar, decoded,
"Decoding failed: \(asHex(scalar.value)) => " +
"\(asHex(nsEncoded)) => \(asHex(decoded.value))"
)
) { $0 == $1 }
encodeIndex = encodeBuffer.startIndex
Codec.encode(scalar, sendingOutputTo: encodeOutput)
@@ -134,10 +134,10 @@ class CodecTest<Codec : TestableUnicodeCodec> {
nsEncoded, encodeBuffer[0..<encodeIndex],
"Decoding failed: \(asHex(nsEncoded)) => " +
"\(asHex(scalar.value)) => \(asHex(self.encodeBuffer[0]))"
)
) { $0 == $1 }
}
func run(_ minScalarOrd: Int, _ maxScalarOrd: Int) {
final func run(_ minScalarOrd: Int, _ maxScalarOrd: Int) {
print("testing \(Codec.name())")
for i in minScalarOrd..<maxScalarOrd {
testOne(nthUnicodeScalar(UInt32(i)))
@@ -147,27 +147,9 @@ class CodecTest<Codec : TestableUnicodeCodec> {
var UTFEncoders = TestSuite("UTFEncoders")
UTFEncoders.test("encodeRandomBlock") {
srandomdev()
// To avoid swamping the buildbot, by default, test only one out of
// testGroupCount cases, selected at random. You can adjust the `testAll`
// variable below to test everything.
var testGroupCount = 128
var testGroup = random() % testGroupCount
var testAll = false
var minScalarOrd: Int
var maxScalarOrd: Int
if testAll {
print("Testing all Unicode scalars")
minScalarOrd = 0
maxScalarOrd = unicodeScalarCount
} else {
print("Testing Unicode scalar group \(testGroup) of \(testGroupCount)")
minScalarOrd = unicodeScalarCount * testGroup / testGroupCount
maxScalarOrd = unicodeScalarCount * (testGroup+1) / testGroupCount
}
UTFEncoders.test("encode") {
let minScalarOrd = 0
let maxScalarOrd = unicodeScalarCount
CodecTest<UTF8>().run(minScalarOrd, maxScalarOrd)
CodecTest<UTF16>().run(minScalarOrd, maxScalarOrd)
CodecTest<UTF32>().run(minScalarOrd, maxScalarOrd)