github.com/aigarnetwork/aigar@v0.0.0-20191115204914-d59a6eb70f8e/crypto/bn256/cloudflare/gfp_test.go (about)

     1  //  Copyright 2018 The go-ethereum Authors
     2  //  Copyright 2019 The go-aigar Authors
     3  //  This file is part of the go-aigar library.
     4  //
     5  //  The go-aigar library is free software: you can redistribute it and/or modify
     6  //  it under the terms of the GNU Lesser General Public License as published by
     7  //  the Free Software Foundation, either version 3 of the License, or
     8  //  (at your option) any later version.
     9  //
    10  //  The go-aigar library is distributed in the hope that it will be useful,
    11  //  but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    13  //  GNU Lesser General Public License for more details.
    14  //
    15  //  You should have received a copy of the GNU Lesser General Public License
    16  //  along with the go-aigar library. If not, see <http://www.gnu.org/licenses/>.
    17  
    18  package bn256
    19  
    20  import (
    21  	"testing"
    22  )
    23  
    24  // Tests that negation works the same way on both assembly-optimized and pure Go
    25  // implementation.
    26  func TestGFpNeg(t *testing.T) {
    27  	n := &gfP{0x0123456789abcdef, 0xfedcba9876543210, 0xdeadbeefdeadbeef, 0xfeebdaedfeebdaed}
    28  	w := &gfP{0xfedcba9876543211, 0x0123456789abcdef, 0x2152411021524110, 0x0114251201142512}
    29  	h := &gfP{}
    30  
    31  	gfpNeg(h, n)
    32  	if *h != *w {
    33  		t.Errorf("negation mismatch: have %#x, want %#x", *h, *w)
    34  	}
    35  }
    36  
    37  // Tests that addition works the same way on both assembly-optimized and pure Go
    38  // implementation.
    39  func TestGFpAdd(t *testing.T) {
    40  	a := &gfP{0x0123456789abcdef, 0xfedcba9876543210, 0xdeadbeefdeadbeef, 0xfeebdaedfeebdaed}
    41  	b := &gfP{0xfedcba9876543210, 0x0123456789abcdef, 0xfeebdaedfeebdaed, 0xdeadbeefdeadbeef}
    42  	w := &gfP{0xc3df73e9278302b8, 0x687e956e978e3572, 0x254954275c18417f, 0xad354b6afc67f9b4}
    43  	h := &gfP{}
    44  
    45  	gfpAdd(h, a, b)
    46  	if *h != *w {
    47  		t.Errorf("addition mismatch: have %#x, want %#x", *h, *w)
    48  	}
    49  }
    50  
    51  // Tests that subtraction works the same way on both assembly-optimized and pure Go
    52  // implementation.
    53  func TestGFpSub(t *testing.T) {
    54  	a := &gfP{0x0123456789abcdef, 0xfedcba9876543210, 0xdeadbeefdeadbeef, 0xfeebdaedfeebdaed}
    55  	b := &gfP{0xfedcba9876543210, 0x0123456789abcdef, 0xfeebdaedfeebdaed, 0xdeadbeefdeadbeef}
    56  	w := &gfP{0x02468acf13579bdf, 0xfdb97530eca86420, 0xdfc1e401dfc1e402, 0x203e1bfe203e1bfd}
    57  	h := &gfP{}
    58  
    59  	gfpSub(h, a, b)
    60  	if *h != *w {
    61  		t.Errorf("subtraction mismatch: have %#x, want %#x", *h, *w)
    62  	}
    63  }
    64  
    65  // Tests that multiplication works the same way on both assembly-optimized and pure Go
    66  // implementation.
    67  func TestGFpMul(t *testing.T) {
    68  	a := &gfP{0x0123456789abcdef, 0xfedcba9876543210, 0xdeadbeefdeadbeef, 0xfeebdaedfeebdaed}
    69  	b := &gfP{0xfedcba9876543210, 0x0123456789abcdef, 0xfeebdaedfeebdaed, 0xdeadbeefdeadbeef}
    70  	w := &gfP{0xcbcbd377f7ad22d3, 0x3b89ba5d849379bf, 0x87b61627bd38b6d2, 0xc44052a2a0e654b2}
    71  	h := &gfP{}
    72  
    73  	gfpMul(h, a, b)
    74  	if *h != *w {
    75  		t.Errorf("multiplication mismatch: have %#x, want %#x", *h, *w)
    76  	}
    77  }