Files
swift-mirror/validation-test/stdlib/Assert.swift
Doug Gregor 7764f64cf8 Simplify assertion machinery in the standard library.
This change includes a number of simplifications that allow us to
eliminate the type checker hack that specifically tries
AssertString. Doing so provides a 25% speedup in the
test/stdlib/ArrayNew.swift test (which is type-checker bound).

The specific simplifications here:
  - User-level
  assert/precondition/preconditionalFailure/assertionFailer/fatalError
  always take an autoclosure producing a String, eliminating the need
  for the StaticString/AssertString dance.
  - Standard-library internal _precondition/_sanityCheck/etc. always
  take a StaticString. When we want to improve the diagnostics in the
  standard library, we can provide a separate overload or
  differently-named function.
  - Remove AssertString, AssertStringType, StaticStringType, which are
  no longer used or needed
  - Remove the AssertString hack from the compiler
  - Remove the "BooleanType" overloads of these functions, because
  their usefuless left when we stopped making optional types conform
  to BooleanType (sorry, should have been a separate patch).



Swift SVN r22139
2014-09-19 17:56:50 +00:00

224 lines
6.0 KiB
Swift

// RUN: rm -rf %t
// RUN: mkdir -p %t
// RUN: %target-build-swift %s -Xfrontend -disable-access-control -o %t/Assert_Debug
// RUN: %target-build-swift %s -Xfrontend -disable-access-control -o %t/Assert_Release -O
// RUN: %target-build-swift %s -Xfrontend -disable-access-control -o %t/Assert_Unchecked -Ounchecked
//
// RUN: %target-run %t/Assert_Debug
// RUN: %target-run %t/Assert_Release
// RUN: %target-run %t/Assert_Unchecked
import StdlibUnittest
//===---
// Utilities.
//===---
func isDebugOrRelease() -> Bool {
return !_isFastAssertConfiguration()
}
//===---
// Tests.
//===---
func testTrapsAreNoreturn(i: Int) -> Int {
// Don't need a return statement in 'case' statements because these functions
// are @noreturn.
switch i {
case 1:
assertionFailure("can not happen")
case 2:
preconditionFailure("can not happen")
case 3:
_preconditionFailure("can not happen")
case 4:
_debugPreconditionFailure("can not happen")
case 5:
_sanityCheckFailure("can not happen")
default:
return 0
}
}
var Assert = TestSuite("Assert")
Assert.test("assert")
.xfail(.Custom(
{ !_isDebugAssertConfiguration() },
reason: "assertions are disabled in Release and Unchecked mode"))
.crashOutputMatches("this should fail")
.code {
var x = 2
assert(x * 21 == 42, "should not fail")
expectCrashLater()
assert(x == 42, "this should fail")
}
Assert.test("assert/StringInterpolation")
.xfail(.Custom(
{ !_isDebugAssertConfiguration() },
reason: "assertions are disabled in Release and Unchecked mode"))
.crashOutputMatches("this should fail")
.code {
var should = "should"
var x = 2
assert(x * 21 == 42, "\(should) not fail")
expectCrashLater()
assert(x == 42, "this \(should) fail")
}
Assert.test("assertionFailure")
.skip(.Custom(
{ !_isDebugAssertConfiguration() },
reason: "optimizer assumes that the code path is unreachable"))
.crashOutputMatches("this should fail")
.code {
expectCrashLater()
assertionFailure("this should fail")
}
Assert.test("assertionFailure/StringInterpolation")
.skip(.Custom(
{ !_isDebugAssertConfiguration() },
reason: "optimizer assumes that the code path is unreachable"))
.crashOutputMatches("this should fail")
.code {
var should = "should"
expectCrashLater()
assertionFailure("this \(should) fail")
}
Assert.test("precondition")
.xfail(.Custom(
{ _isFastAssertConfiguration() },
reason: "preconditions are disabled in Unchecked mode"))
.crashOutputMatches(_isDebugAssertConfiguration() ? "this should fail" : "")
.code {
var x = 2
precondition(x * 21 == 42, "should not fail")
expectCrashLater()
precondition(x == 42, "this should fail")
}
Assert.test("precondition/StringInterpolation")
.xfail(.Custom(
{ _isFastAssertConfiguration() },
reason: "preconditions are disabled in Unchecked mode"))
.crashOutputMatches(_isDebugAssertConfiguration() ? "this should fail" : "")
.code {
var should = "should"
var x = 2
precondition(x * 21 == 42, "\(should) not fail")
expectCrashLater()
precondition(x == 42, "this \(should) fail")
}
Assert.test("preconditionFailure")
.skip(.Custom(
{ _isFastAssertConfiguration() },
reason: "optimizer assumes that the code path is unreachable"))
.crashOutputMatches(_isDebugAssertConfiguration() ? "this should fail" : "")
.code {
expectCrashLater()
preconditionFailure("this should fail")
}
Assert.test("preconditionFailure/StringInterpolation")
.skip(.Custom(
{ _isFastAssertConfiguration() },
reason: "optimizer assumes that the code path is unreachable"))
.crashOutputMatches(_isDebugAssertConfiguration() ? "this should fail" : "")
.code {
var should = "should"
expectCrashLater()
preconditionFailure("this \(should) fail")
}
Assert.test("fatalError")
.crashOutputMatches("this should fail")
.code {
expectCrashLater()
fatalError("this should fail")
}
Assert.test("fatalError/StringInterpolation")
.crashOutputMatches("this should fail")
.code {
var should = "should"
expectCrashLater()
fatalError("this \(should) fail")
}
Assert.test("_precondition")
.xfail(.Custom(
{ _isFastAssertConfiguration() },
reason: "preconditions are disabled in Unchecked mode"))
.crashOutputMatches(_isDebugAssertConfiguration() ? "this should fail" : "")
.code {
var x = 2
_precondition(x * 21 == 42, "should not fail")
expectCrashLater()
_precondition(x == 42, "this should fail")
}
Assert.test("_preconditionFailure")
.skip(.Custom(
{ _isFastAssertConfiguration() },
reason: "optimizer assumes that the code path is unreachable"))
.crashOutputMatches(_isDebugAssertConfiguration() ? "this should fail" : "")
.code {
expectCrashLater()
_preconditionFailure("this should fail")
}
Assert.test("_debugPrecondition")
.xfail(.Custom(
{ !_isDebugAssertConfiguration() },
reason: "debug preconditions are disabled in Release and Unchecked mode"))
.crashOutputMatches(_isDebugAssertConfiguration() ? "this should fail" : "")
.code {
var x = 2
_debugPrecondition(x * 21 == 42, "should not fail")
expectCrashLater()
_debugPrecondition(x == 42, "this should fail")
}
Assert.test("_debugPreconditionFailure")
.skip(.Custom(
{ !_isDebugAssertConfiguration() },
reason: "optimizer assumes that the code path is unreachable"))
.crashOutputMatches("this should fail")
.code {
expectCrashLater()
_debugPreconditionFailure("this should fail")
}
Assert.test("_sanityCheck")
.xfail(.Custom(
{ !_isStdlibInternalChecksEnabled() },
reason: "sanity checks are disabled in this build of stdlib"))
.crashOutputMatches("this should fail")
.code {
var x = 2
_sanityCheck(x * 21 == 42, "should not fail")
expectCrashLater()
_sanityCheck(x == 42, "this should fail")
}
Assert.test("_sanityCheckFailure")
.skip(.Custom(
{ !_isStdlibInternalChecksEnabled() },
reason: "optimizer assumes that the code path is unreachable"))
.crashOutputMatches("this should fail")
.code {
expectCrashLater()
_sanityCheckFailure("this should fail")
}
runAllTests()