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Add test cases to exercise the native String vs cocoa buffer String path.

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Swift SVN r31475
This commit is contained in:
Arnold Schwaighofer
2015-08-26 03:57:23 +00:00
parent 5a25a00d1f
commit 65f6b840c1
1 changed files with 41 additions and 4 deletions
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45
test/1_stdlib/NSStringAPI.swift
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@@ -1954,11 +1954,26 @@ let comparisonTests = [
ComparisonTest(.EQ, "\u{0341}", "\u{0954}"),
]
func checkStringComparison(
expected: ExpectedComparisonResult,
_ lhs: String, _ rhs: String, _ stackTrace: SourceLocStack
func forceUTF16String(var str: String) -> String {
if str._core.isASCII {
str.insert("\u{0130}", atIndex: str.startIndex)
str.removeAtIndex(str.startIndex)
}
return str
}
func toCocoaBackedString(str: String) -> String {
let utf16String = forceUTF16String(str)
return String(NSString(
characters: utf16String._core.startUTF16,
length: utf16String._core.count))
}
func checkStringComparisons(
expected: ExpectedComparisonResult, _ lhs: String, _ rhs: String,
_ stackTrace: SourceLocStack
) {
// String / String
expectEqual(expected.isEQ(), lhs == rhs, stackTrace: stackTrace)
expectEqual(expected.isNE(), lhs != rhs, stackTrace: stackTrace)
checkHashable(
@@ -1969,6 +1984,14 @@ func checkStringComparison(
expectEqual(expected.isGE(), lhs >= rhs, stackTrace: stackTrace)
expectEqual(expected.isGT(), lhs > rhs, stackTrace: stackTrace)
checkComparable(expected, lhs, rhs, stackTrace: stackTrace.withCurrentLoc())
}
func checkStringComparison(
expected: ExpectedComparisonResult,
_ lhs: String, _ rhs: String, _ stackTrace: SourceLocStack
) {
// String / String
checkStringComparisons(expected, lhs, rhs, stackTrace.withCurrentLoc())
// NSString / NSString
let lhsNSString = lhs as NSString
@@ -1985,6 +2008,20 @@ func checkStringComparison(
checkHashable(
expectedEqualUnicodeScalars, lhsNSString, rhsNSString,
stackTrace: stackTrace.withCurrentLoc())
// Test cocoa backed Strings
let lhsWithCocoaBuffer = toCocoaBackedString(lhs)
let rhsWithCocoaBuffer = toCocoaBackedString(rhs)
// String (cocoa) / String (cocoa)
checkStringComparisons(expected, lhsWithCocoaBuffer, rhsWithCocoaBuffer,
stackTrace.withCurrentLoc())
// String / String (cocoa)
checkStringComparisons(expected, lhs, rhsWithCocoaBuffer,
stackTrace.withCurrentLoc())
// String (cocoa) / String
checkStringComparisons(expected, lhsWithCocoaBuffer, rhs,
stackTrace.withCurrentLoc())
}
NSStringAPIs.test("String.{Equatable,Hashable,Comparable}") {