2009-08-14 12:53:27 -06:00
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package big
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import "testing"
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func TestCmpNN(t *testing.T) {
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// TODO(gri) write this test - all other tests depends on it
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}
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type funNN func(z, x, y []Word) []Word
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type argNN struct { z, x, y []Word }
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var sumNN = []argNN{
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argNN{},
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argNN{[]Word{1}, nil, []Word{1}},
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argNN{[]Word{1111111110}, []Word{123456789}, []Word{987654321}},
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argNN{[]Word{0, 0, 0, 1}, nil, []Word{0, 0, 0, 1}},
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argNN{[]Word{0, 0, 0, 1111111110}, []Word{0, 0, 0, 123456789}, []Word{0, 0, 0, 987654321}},
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argNN{[]Word{0, 0, 0, 1}, []Word{0, 0, _M}, []Word{0, 0, 1}},
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}
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func TestSetN(t *testing.T) {
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for _, a := range sumNN {
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z := setN(nil, a.z);
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if cmpNN(z, a.z) != 0 {
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t.Errorf("got z = %v; want %v", z, a.z);
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}
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}
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}
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func testFunNN(t *testing.T, msg string, f funNN, a argNN) {
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z := f(nil, a.x, a.y);
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if cmpNN(z, a.z) != 0 {
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t.Errorf("%s%+v\n\tgot z = %v; want %v", msg, a, z, a.z);
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}
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}
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func TestFunNN(t *testing.T) {
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for _, a := range sumNN {
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arg := a;
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testFunNN(t, "addNN", addNN, arg);
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arg = argNN{a.z, a.y, a.x};
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testFunNN(t, "addNN symmetric", addNN, arg);
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arg = argNN{a.x, a.z, a.y};
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testFunNN(t, "subNN", subNN, arg);
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arg = argNN{a.y, a.z, a.x};
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testFunNN(t, "subNN symmetric", subNN, arg);
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}
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}
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type strN struct { x []Word; b int; s string }
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var tabN = []strN{
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strN{nil, 10, "0"},
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strN{[]Word{1}, 10, "1"},
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strN{[]Word{10}, 10, "10"},
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strN{[]Word{1234567890}, 10, "1234567890"},
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}
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func TestStringN(t *testing.T) {
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for _, a := range tabN {
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s := stringN(a.x, a.b);
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if s != a.s {
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t.Errorf("stringN%+v\n\tgot s = %s; want %s", a, s, a.s);
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}
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2009-08-15 12:43:54 -06:00
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x, b, n := scanN(nil, a.s, a.b);
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if cmpNN(x, a.x) != 0 {
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t.Errorf("scanN%+v\n\tgot z = %v; want %v", a, x, a.x);
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}
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if b != a.b {
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t.Errorf("scanN%+v\n\tgot b = %d; want %d", a, b, a.b);
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}
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if n != len(a.s) {
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t.Errorf("scanN%+v\n\tgot n = %d; want %d", a, n, len(a.s));
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}
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2009-08-14 12:53:27 -06:00
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}
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}
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