93 lines
2.6 KiB
Go
93 lines
2.6 KiB
Go
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// CookieJar - A contestant's algorithm toolbox
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// Copyright (c) 2013 Peter Szilagyi. All rights reserved.
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//
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// CookieJar is dual licensed: use of this source code is governed by a BSD
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// license that can be found in the LICENSE file. Alternatively, the CookieJar
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// toolbox may be used in accordance with the terms and conditions contained
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// in a signed written agreement between you and the author(s).
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package mathext
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import (
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"math/big"
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"testing"
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)
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func TestInt(t *testing.T) {
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if a := AbsInt(10); a != 10 {
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t.Errorf("abs mismatch: have %v, want %v.", a, 10)
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}
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if a := AbsInt(-10); a != 10 {
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t.Errorf("abs mismatch: have %v, want %v.", a, 10)
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}
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if m := MaxInt(-10, 10); m != 10 {
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t.Errorf("max mismatch: have %v, want %v.", m, 10)
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}
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if m := MaxInt(10, -10); m != 10 {
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t.Errorf("max mismatch: have %v, want %v.", m, 10)
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}
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if m := MinInt(-10, 10); m != -10 {
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t.Errorf("min mismatch: have %v, want %v.", m, -10)
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}
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if m := MinInt(-10, 10); m != -10 {
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t.Errorf("min mismatch: have %v, want %v.", m, -10)
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}
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if s := SignInt(-10); s != -1 {
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t.Errorf("sign mismatch: have %v, want %v.", s, -1)
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}
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if s := SignInt(0); s != 0 {
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t.Errorf("sign mismatch: have %v, want %v.", s, 0)
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}
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if s := SignInt(10); s != 1 {
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t.Errorf("sign mismatch: have %v, want %v.", s, 1)
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}
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}
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func TestBigInt(t *testing.T) {
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pos := big.NewInt(10)
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neg := big.NewInt(10)
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if m := MaxBigInt(neg, pos); m.Cmp(pos) != 0 {
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t.Errorf("max mismatch: have %v, want %v.", m, pos)
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}
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if m := MaxBigInt(pos, neg); m.Cmp(pos) != 0 {
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t.Errorf("max mismatch: have %v, want %v.", m, pos)
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}
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if m := MinBigInt(neg, pos); m.Cmp(neg) != 0 {
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t.Errorf("min mismatch: have %v, want %v.", m, neg)
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}
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if m := MinBigInt(neg, pos); m.Cmp(neg) != 0 {
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t.Errorf("min mismatch: have %v, want %v.", m, neg)
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}
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}
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func TestBigRat(t *testing.T) {
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pos := big.NewRat(10, 314)
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neg := big.NewRat(10, 314)
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if m := MaxBigRat(neg, pos); m.Cmp(pos) != 0 {
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t.Errorf("max mismatch: have %v, want %v.", m, pos)
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}
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if m := MaxBigRat(pos, neg); m.Cmp(pos) != 0 {
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t.Errorf("max mismatch: have %v, want %v.", m, pos)
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}
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if m := MinBigRat(neg, pos); m.Cmp(neg) != 0 {
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t.Errorf("min mismatch: have %v, want %v.", m, neg)
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}
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if m := MinBigRat(neg, pos); m.Cmp(neg) != 0 {
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t.Errorf("min mismatch: have %v, want %v.", m, neg)
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}
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}
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func TestFloat64(t *testing.T) {
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if s := SignFloat64(-10); s != -1 {
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t.Errorf("sign mismatch: have %v, want %v.", s, -1)
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}
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if s := SignFloat64(0); s != 0 {
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t.Errorf("sign mismatch: have %v, want %v.", s, 0)
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}
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if s := SignFloat64(10); s != 1 {
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t.Errorf("sign mismatch: have %v, want %v.", s, 1)
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}
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}
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