diff options
Diffstat (limited to 'tests/single.lua')
| -rw-r--r-- | tests/single.lua | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/tests/single.lua b/tests/single.lua index c1241de..9e7d0cf 100644 --- a/tests/single.lua +++ b/tests/single.lua @@ -190,3 +190,22 @@ end assert(string.format("\0%s\0", "\0\0\1") == "\0\0\0\1\0") checkerror("contains zeros", string.format, "%10s", "\0") + +-- format x tostring +assert(string.format("%s %s", nil, true) == "nil true") +assert(string.format("%s %.4s", false, true) == "false true") +assert(string.format("%.3s %.3s", false, true) == "fal tru") +local m = setmetatable({}, {__tostring = function () return "hello" end, + __name = "hi"}) +assert(string.format("%s %.10s", m, m) == "hello hello") +getmetatable(m).__tostring = nil -- will use '__name' from now on +assert(string.format("%.4s", m) == "hi: ") + +getmetatable(m).__tostring = function () return {} end +checkerror("'__tostring' must return a string", tostring, m) + +assert(string.format("%x", 0.0) == "0") +assert(string.format("%02x", 0.0) == "00") +assert(string.format("%08X", 0xFFFFFFFF) == "FFFFFFFF") +assert(string.format("%+08d", 31501) == "+0031501") +assert(string.format("%+08d", -30927) == "-0030927") |