| // Copyright ©2018 The Gonum Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package quat |
| |
| import ( |
| "math" |
| "testing" |
| ) |
| |
| var inf = math.Inf(1) |
| |
| var infTests = []struct { |
| q Number |
| want bool |
| }{ |
| {q: Inf(), want: true}, |
| {q: Number{Real: inf, Imag: inf, Jmag: inf, Kmag: inf}, want: true}, |
| {q: Number{Real: -inf, Imag: -inf, Jmag: -inf, Kmag: -inf}, want: true}, |
| {q: Number{Real: inf, Imag: nan, Jmag: nan, Kmag: nan}, want: true}, |
| {q: Number{Real: nan, Imag: inf, Jmag: nan, Kmag: nan}, want: true}, |
| {q: Number{Real: nan, Imag: nan, Jmag: inf, Kmag: nan}, want: true}, |
| {q: Number{Real: nan, Imag: nan, Jmag: nan, Kmag: inf}, want: true}, |
| {q: Number{Real: -inf, Imag: nan, Jmag: nan, Kmag: nan}, want: true}, |
| {q: Number{Real: nan, Imag: -inf, Jmag: nan, Kmag: nan}, want: true}, |
| {q: Number{Real: nan, Imag: nan, Jmag: -inf, Kmag: nan}, want: true}, |
| {q: Number{Real: nan, Imag: nan, Jmag: nan, Kmag: -inf}, want: true}, |
| {q: Number{Real: inf}, want: true}, |
| {q: Number{Imag: inf}, want: true}, |
| {q: Number{Jmag: inf}, want: true}, |
| {q: Number{Kmag: inf}, want: true}, |
| {q: Number{Real: -inf}, want: true}, |
| {q: Number{Imag: -inf}, want: true}, |
| {q: Number{Jmag: -inf}, want: true}, |
| {q: Number{Kmag: -inf}, want: true}, |
| {q: Number{}, want: false}, |
| } |
| |
| func TestIsInf(t *testing.T) { |
| t.Parallel() |
| for _, test := range infTests { |
| got := IsInf(test.q) |
| if got != test.want { |
| t.Errorf("unexpected result for IsInf(%v): got:%t want:%t", test.q, got, test.want) |
| } |
| } |
| } |