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Add check for empty string

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This commit is contained in:
coffeepots 2018-07-09 09:43:23 +01:00
parent 4e300f1539
commit f943c584c7
1 changed files with 7 additions and 1 deletions
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8
tests/ethhexstrings.nim
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@ -17,7 +17,7 @@ proc encodeQuantity*(value: SomeUnsignedInt): string =
template hasHexHeader*(value: string | HexDataStr | HexQuantityStr): bool =
template strVal: untyped = value.string
if strVal[0] == '0' and strVal[1] in {'x', 'X'} and strVal.len > 2: true
if strVal != "" and strVal[0] == '0' and strVal[1] in {'x', 'X'} and strVal.len > 2: true
else: false
template isHexChar*(c: char): bool =
@ -94,6 +94,12 @@ proc fromJson*(n: JsonNode, argName: string, result: var HexQuantityStr) =
when isMainModule:
import unittest
suite "Hex quantity":
test "Empty string":
expect ValueError:
let
source = ""
x = hexQuantityStr source
check %x == %source
test "Even length":
let
source = "0x123"