diff options
Diffstat (limited to 'test/string_lit.go')
| -rw-r--r-- | test/string_lit.go | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/test/string_lit.go b/test/string_lit.go index 956330038..457faaa88 100644 --- a/test/string_lit.go +++ b/test/string_lit.go @@ -93,7 +93,7 @@ func main() { "backslashes 2 (backquote)") assert("\\x\\u\\U\\", `\x\u\U\`, "backslash 3 (backquote)") - // test large runes. perhaps not the most logical place for this test. + // test large and surrogate-half runes. perhaps not the most logical place for these tests. var r int32 r = 0x10ffff // largest rune value s = string(r) @@ -101,6 +101,28 @@ func main() { r = 0x10ffff + 1 s = string(r) assert(s, "\xef\xbf\xbd", "too-large rune") + r = 0xD800 + s = string(r) + assert(s, "\xef\xbf\xbd", "surrogate rune min") + r = 0xDFFF + s = string(r) + assert(s, "\xef\xbf\xbd", "surrogate rune max") + r = -1 + s = string(r) + assert(s, "\xef\xbf\xbd", "negative rune") + + // the large rune tests again, this time using constants instead of a variable. + // these conversions will be done at compile time. + s = string(0x10ffff) // largest rune value + assert(s, "\xf4\x8f\xbf\xbf", "largest rune constant") + s = string(0x10ffff + 1) + assert(s, "\xef\xbf\xbd", "too-large rune constant") + s = string(0xD800) + assert(s, "\xef\xbf\xbd", "surrogate rune min constant") + s = string(0xDFFF) + assert(s, "\xef\xbf\xbd", "surrogate rune max constant") + s = string(-1) + assert(s, "\xef\xbf\xbd", "negative rune") assert(string(gr1), gx1, "global ->[]rune") assert(string(gr2), gx2fix, "global invalid ->[]rune") |