| // Ceres Solver - A fast non-linear least squares minimizer | |
| // Copyright 2010, 2011, 2012 Google Inc. All rights reserved. | |
| // http://code.google.com/p/ceres-solver/ | |
| // | |
| // Redistribution and use in source and binary forms, with or without | |
| // modification, are permitted provided that the following conditions are met: | |
| // | |
| // * Redistributions of source code must retain the above copyright notice, | |
| // this list of conditions and the following disclaimer. | |
| // * Redistributions in binary form must reproduce the above copyright notice, | |
| // this list of conditions and the following disclaimer in the documentation | |
| // and/or other materials provided with the distribution. | |
| // * Neither the name of Google Inc. nor the names of its contributors may be | |
| // used to endorse or promote products derived from this software without | |
| // specific prior written permission. | |
| // | |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
| // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| // POSSIBILITY OF SUCH DAMAGE. | |
| // | |
| // Author: keir@google.com (Keir Mierle) | |
| #include <string> | |
| #include "ceres/internal/port.h" | |
| #ifndef CERES_INTERNAL_TEST_UTIL_H_ | |
| #define CERES_INTERNAL_TEST_UTIL_H_ | |
| namespace ceres { | |
| namespace internal { | |
| // Expects that x and y have a relative difference of no more than | |
| // max_abs_relative_difference. If either x or y is zero, then the relative | |
| // difference is interpreted as an absolute difference. | |
| bool ExpectClose(double x, double y, double max_abs_relative_difference); | |
| // Expects that for all i = 1,.., n - 1 | |
| // | |
| // |p[i] - q[i]| / max(|p[i]|, |q[i]|) < tolerance | |
| void ExpectArraysClose(int n, | |
| const double* p, | |
| const double* q, | |
| double tolerance); | |
| // Expects that for all i = 1,.., n - 1 | |
| // | |
| // |p[i] / max_norm_p - q[i] / max_norm_q| < tolerance | |
| // | |
| // where max_norm_p and max_norm_q are the max norms of the arrays p | |
| // and q respectively. | |
| void ExpectArraysCloseUptoScale(int n, | |
| const double* p, | |
| const double* q, | |
| double tolerance); | |
| // Construct a fully qualified path for the test file depending on the | |
| // local build/testing environment. | |
| string TestFileAbsolutePath(const string& filename); | |
| } // namespace internal | |
| } // namespace ceres | |
| #endif // CERES_INTERNAL_TEST_UTIL_H_ |