70 lines
2.5 KiB
Go
70 lines
2.5 KiB
Go
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// Copyright (c) 2017 The btcsuite developers
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// Use of this source code is governed by an ISC
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// license that can be found in the LICENSE file.
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package bech32_test
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import (
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"strings"
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"testing"
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"github.com/btcsuite/btcutil/bech32"
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)
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func TestBech32(t *testing.T) {
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tests := []struct {
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str string
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valid bool
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}{
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{"A12UEL5L", true},
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{"an83characterlonghumanreadablepartthatcontainsthenumber1andtheexcludedcharactersbio1tt5tgs", true},
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{"abcdef1qpzry9x8gf2tvdw0s3jn54khce6mua7lmqqqxw", true},
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{"11qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqc8247j", true},
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{"split1checkupstagehandshakeupstreamerranterredcaperred2y9e3w", true},
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{"split1checkupstagehandshakeupstreamerranterredcaperred2y9e2w", false}, // invalid checksum
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{"s lit1checkupstagehandshakeupstreamerranterredcaperredp8hs2p", false}, // invalid character (space) in hrp
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{"spl" + string(127) + "t1checkupstagehandshakeupstreamerranterredcaperred2y9e3w", false}, // invalid character (DEL) in hrp
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{"split1cheo2y9e2w", false}, // invalid character (o) in data part
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{"split1a2y9w", false}, // too short data part
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{"1checkupstagehandshakeupstreamerranterredcaperred2y9e3w", false}, // empty hrp
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{"11qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqsqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqc8247j", false}, // too long
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}
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for _, test := range tests {
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str := test.str
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hrp, decoded, err := bech32.Decode(str)
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if !test.valid {
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// Invalid string decoding should result in error.
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if err == nil {
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t.Error("expected decoding to fail for "+
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"invalid string %v", test.str)
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}
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continue
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}
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// Valid string decoding should result in no error.
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if err != nil {
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t.Errorf("expected string to be valid bech32: %v", err)
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}
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// Check that it encodes to the same string
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encoded, err := bech32.Encode(hrp, decoded)
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if err != nil {
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t.Errorf("encoding failed: %v", err)
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}
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if encoded != strings.ToLower(str) {
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t.Errorf("expected data to encode to %v, but got %v",
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str, encoded)
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}
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// Flip a bit in the string an make sure it is caught.
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pos := strings.LastIndexAny(str, "1")
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flipped := str[:pos+1] + string((str[pos+1] ^ 1)) + str[pos+2:]
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_, _, err = bech32.Decode(flipped)
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if err == nil {
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t.Error("expected decoding to fail")
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}
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}
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}
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