63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
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#include <limits>
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template<typename T>
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::testing::AssertionResult MatrixClose(
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const T &expected,
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const T &actual,
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float relative_error_precision = 1.0e-6){
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if (expected.rows() != actual.rows()) {
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return ::testing::AssertionFailure() << "matrices have different sizes: expected " << expected.rows() << " rows but have " << actual.rows();
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}
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if (expected.cols() != actual.cols()) {
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return ::testing::AssertionFailure() << "matrices have different sizes: expected " << expected.cols() << " columns but have " << actual.cols();
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}
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// compute relative error component wise
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size_t fail_i = 0;
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size_t fail_j = 0;
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bool failed = false;
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for (size_t i = 0; i < expected.rows(); ++i) {
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for (size_t j = 0; j < expected.cols(); ++j) {
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float diff = fabs(expected(i,j) - actual(i,j));
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// special case: expected is 0. In that we cannot normalize
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if (
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(expected(i,j) == 0.0f && diff > relative_error_precision)
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|| (diff / fabs(expected(i,j)) > relative_error_precision)
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) {
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failed = true;
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fail_j = j;
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break;
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}
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}
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if (failed) {
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fail_i = i;
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break;
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}
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}
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if (failed) {
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return ::testing::AssertionFailure() << "matrix " << std::endl
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<< actual << std::endl << " is not close to expected matrix " << std::endl
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<< expected << std::endl;
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}
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return ::testing::AssertionSuccess();
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}
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template<typename T, size_t size>
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::testing::AssertionResult ArraysMatch(const T (&expected)[size],
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const T (&actual)[size]){
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for (size_t i(0); i < size; ++i){
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if (expected[i] != actual[i]){
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return ::testing::AssertionFailure() << "array[" << i
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<< "] (" << actual[i] << ") != expected[" << i
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<< "] (" << expected[i] << ")";
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}
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}
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return ::testing::AssertionSuccess();
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}
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