100 lines
2.7 KiB
Nim
100 lines
2.7 KiB
Nim
# Stint
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# Copyright 2018 Status Research & Development GmbH
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# Licensed under either of
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#
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
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# * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
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#
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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import ../src/stint, unittest, strutils
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suite "Testing input and output procedures":
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test "Creation from decimal strings":
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block:
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let a = parse(Stint[64], "123456789")
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let b = 123456789.stint(64)
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check: a == b
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check: 123456789'i64 == cast[int64](a)
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block:
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let a = parse(Stuint[64], "123456789")
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let b = 123456789.stuint(64)
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check: a == b
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check: 123456789'u64 == cast[uint64](a)
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block:
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let a = parse(Stint[64], "-123456789")
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let b = (-123456789).stint(64)
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check: a == b
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check: -123456789'i64 == cast[int64](a)
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test "Creation from hex strings":
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block:
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let a = parse(Stint[64], "0xFF", 16)
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let b = 255.stint(64)
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check: a == b
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check: 255'i64 == cast[int64](a)
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block:
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let a = parse(Stuint[64], "0xFF", 16)
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let b = 255.stuint(64)
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check: a == b
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check: 255'u64 == cast[uint64](a)
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block:
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let a = parse(Stint[16], "0xFFFF", 16)
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let b = (-1'i16).stint(16)
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check: a == b
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check: -1'i16 == cast[int16](a)
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test "Conversion to decimal strings":
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block:
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let a = 1234567891234567890.stint(128)
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check: a.toString == "1234567891234567890"
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block:
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let a = 1234567891234567890.stuint(128)
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check: a.toString == "1234567891234567890"
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block:
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let a = (-1234567891234567890).stint(128)
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check: a.toString == "-1234567891234567890"
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test "Conversion to hex strings":
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block:
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let a = 0x1234567890ABCDEF.stint(128)
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check: a.toString(base = 16).toUpperAscii == "1234567890ABCDEF"
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block:
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let a = 0x1234567890ABCDEF.stuint(128)
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check: a.toString(base = 16).toUpperAscii == "1234567890ABCDEF"
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# TODO: negative hex
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test "Hex dump":
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block:
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let a = 0x1234'i32.stint(32)
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check: a.dumpHex(bigEndian).toUpperAscii == "00001234"
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block:
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let a = 0x1234'i32.stint(32)
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check: a.dumpHex(littleEndian).toUpperAscii == "34120000"
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test "Back and forth bigint conversion consistency":
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block:
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let s = "1234567890123456789012345678901234567890123456789"
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let a = parse(StInt[512], s)
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check: a.toString == s
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block:
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let s = "1234567890123456789012345678901234567890123456789"
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let a = parse(StUInt[512], s)
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check: a.toString == s
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