Files
test/tests/gtests/testing/testing.h
Mattias Fredriksson a57c3558cd Curves: Unit tests for curves::nurbs::calculate_evaluated_num()
Unit tests veryfying expectation for curves::nurbs::calculate_evaluated_num().
Expectation is computed from closed form expressions rather then hard coded
values. Purpose for this is to make the tests easier to adjust if, for example,
parameter sampling pattern is changed. It should also make them easier to read
and understand.

Additional purpose is to create a baseline and verify changes for #144000.

Implementation is essentially examples from:
https://link.springer.com/book/10.1007/978-3-642-59223-2

Pull Request: https://projects.blender.org/blender/blender/pulls/143920
2025-08-06 13:59:10 +02:00

219 lines
6.6 KiB
C++

/* SPDX-FileCopyrightText: 2014 Blender Authors
*
* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef __BLENDER_TESTING_H__
#define __BLENDER_TESTING_H__
#include <vector>
#include <gflags/gflags.h> // IWYU pragma: export
#include <glog/logging.h> // IWYU pragma: export
#include <gtest/gtest.h> // IWYU pragma: export
/* Fwd.
*/
namespace blender {
template<typename T> class Span;
} // namespace blender
namespace blender::tests {
/* These strings are passed on the CLI with the --test-asset-dir and --test-release-dir arguments.
* The arguments are added automatically when invoking tests via `ctest`. */
const std::string &flags_test_asset_dir(); /* tests/files in the Blender repository. */
const std::string &flags_test_release_dir(); /* bin/{blender version} in the build directory. */
} // namespace blender::tests
#define EXPECT_V2_NEAR(a, b, eps) \
{ \
EXPECT_NEAR(a[0], b[0], eps); \
EXPECT_NEAR(a[1], b[1], eps); \
} \
(void)0
#define EXPECT_V3_NEAR(a, b, eps) \
{ \
EXPECT_NEAR(a[0], b[0], eps); \
EXPECT_NEAR(a[1], b[1], eps); \
EXPECT_NEAR(a[2], b[2], eps); \
} \
(void)0
#define EXPECT_V4_NEAR(a, b, eps) \
{ \
EXPECT_NEAR(a[0], b[0], eps); \
EXPECT_NEAR(a[1], b[1], eps); \
EXPECT_NEAR(a[2], b[2], eps); \
EXPECT_NEAR(a[3], b[3], eps); \
} \
(void)0
#define EXPECT_M2_NEAR(a, b, eps) \
do { \
EXPECT_V2_NEAR(a[0], b[0], eps); \
EXPECT_V2_NEAR(a[1], b[1], eps); \
} while (false);
#define EXPECT_M3_NEAR(a, b, eps) \
do { \
EXPECT_V3_NEAR(a[0], b[0], eps); \
EXPECT_V3_NEAR(a[1], b[1], eps); \
EXPECT_V3_NEAR(a[2], b[2], eps); \
} while (false);
#define EXPECT_M4_NEAR(a, b, eps) \
do { \
EXPECT_V4_NEAR(a[0], b[0], eps); \
EXPECT_V4_NEAR(a[1], b[1], eps); \
EXPECT_V4_NEAR(a[2], b[2], eps); \
EXPECT_V4_NEAR(a[3], b[3], eps); \
} while (false);
#define EXPECT_MATRIX_NEAR(a, b, tolerance) \
do { \
bool dims_match = (a.rows() == b.rows()) && (a.cols() == b.cols()); \
EXPECT_EQ(a.rows(), b.rows()) << "Matrix rows don't match."; \
EXPECT_EQ(a.cols(), b.cols()) << "Matrix cols don't match."; \
if (dims_match) { \
for (int r = 0; r < a.rows(); ++r) { \
for (int c = 0; c < a.cols(); ++c) { \
EXPECT_NEAR(a(r, c), b(r, c), tolerance) << "r=" << r << ", c=" << c << "."; \
} \
} \
} \
} while (false);
#define EXPECT_MATRIX_NEAR_ZERO(a, tolerance) \
do { \
for (int r = 0; r < a.rows(); ++r) { \
for (int c = 0; c < a.cols(); ++c) { \
EXPECT_NEAR(0.0, a(r, c), tolerance) << "r=" << r << ", c=" << c << "."; \
} \
} \
} while (false);
#define EXPECT_MATRIX_EQ(a, b) \
do { \
bool dims_match = (a.rows() == b.rows()) && (a.cols() == b.cols()); \
EXPECT_EQ(a.rows(), b.rows()) << "Matrix rows don't match."; \
EXPECT_EQ(a.cols(), b.cols()) << "Matrix cols don't match."; \
if (dims_match) { \
for (int r = 0; r < a.rows(); ++r) { \
for (int c = 0; c < a.cols(); ++c) { \
EXPECT_EQ(a(r, c), b(r, c)) << "r=" << r << ", c=" << c << "."; \
} \
} \
} \
} while (false);
// Check that sin(angle(a, b)) < tolerance.
#define EXPECT_MATRIX_PROP(a, b, tolerance) \
do { \
bool dims_match = (a.rows() == b.rows()) && (a.cols() == b.cols()); \
EXPECT_EQ(a.rows(), b.rows()) << "Matrix rows don't match."; \
EXPECT_EQ(a.cols(), b.cols()) << "Matrix cols don't match."; \
if (dims_match) { \
double c = CosinusBetweenMatrices(a, b); \
if (c * c < 1) { \
double s = sqrt(1 - c * c); \
EXPECT_NEAR(0, s, tolerance); \
} \
} \
} while (false);
#ifdef LIBMV_NUMERIC_NUMERIC_H
template<class TMat> double CosinusBetweenMatrices(const TMat &a, const TMat &b)
{
return (a.array() * b.array()).sum() / libmv::FrobeniusNorm(a) / libmv::FrobeniusNorm(b);
}
#endif
template<typename T>
inline void EXPECT_EQ_VECTOR(const std::vector<T> &expected, const std::vector<T> &actual)
{
EXPECT_EQ(expected.size(), actual.size());
if (expected.size() == actual.size()) {
for (size_t i = 0; i < expected.size(); ++i) {
EXPECT_EQ(expected[i], actual[i]) << "Element mismatch at index " << i;
}
}
}
template<typename T>
inline void EXPECT_EQ_SPAN(const blender::Span<T> expected, const blender::Span<T> actual)
{
EXPECT_EQ(expected.size(), actual.size());
if (expected.size() == actual.size()) {
for (const int64_t i : expected.index_range()) {
EXPECT_EQ(expected[i], actual[i]) << "Element mismatch at index " << i;
}
}
}
template<typename T, typename U>
inline void EXPECT_NEAR_SPAN(const blender::Span<T> expected,
const blender::Span<T> actual,
const U tolerance)
{
EXPECT_EQ(expected.size(), actual.size());
if (expected.size() == actual.size()) {
for (const int64_t i : expected.index_range()) {
EXPECT_NEAR(expected[i], actual[i], tolerance) << "Element mismatch at index " << i;
}
}
}
template<typename T>
inline void EXPECT_EQ_ARRAY(const T *expected, const T *actual, const size_t N)
{
for (size_t i = 0; i < N; ++i) {
EXPECT_EQ(expected[i], actual[i]) << "Element mismatch at index " << i;
}
}
template<typename T>
inline void EXPECT_EQ_ARRAY_ND(const T *expected, const T *actual, const size_t N, const size_t D)
{
for (size_t i = 0; i < N; ++i) {
for (size_t j = 0; j < D; ++j) {
EXPECT_EQ(expected[i][j], actual[i][j])
<< "Element mismatch at index " << i << ", component index " << j;
}
}
}
template<typename T, typename U>
inline void EXPECT_NEAR_ARRAY_ND(
const T *expected, const T *actual, const size_t N, const size_t D, const U tolerance)
{
for (size_t i = 0; i < N; ++i) {
for (size_t j = 0; j < D; ++j) {
EXPECT_NEAR(expected[i][j], actual[i][j], tolerance)
<< "Element mismatch at index " << i << ", component index " << j;
}
}
}
#ifdef _WIN32
# define ABORT_PREDICATE ::testing::ExitedWithCode(3)
#else
# define ABORT_PREDICATE ::testing::KilledBySignal(SIGABRT)
#endif
/* Test macro for when BLI_assert() is expected to fail.
* Note that the EXPECT_BLI_ASSERT macro is a no-op, unless used in a debug build with
* WITH_ASSERT_ABORT=ON. */
#if defined(WITH_ASSERT_ABORT) && !defined(NDEBUG)
/* EXPECT_EXIT() is used as that's the only exit-expecting function in GTest that allows us to
* check for SIGABRT. */
# define EXPECT_BLI_ASSERT(function_call, expect_message) \
EXPECT_EXIT(function_call, ABORT_PREDICATE, expect_message)
#else
# define EXPECT_BLI_ASSERT(function_call, expect_message) function_call
#endif
#endif // __BLENDER_TESTING_H__