Initial commit

tests/test_utils.hpp

@@ -0,0 +1,68 @@
+#pragma once
+
+#include <algorithm>
+#include <cmath>
+#include <vector>
+
+#include <catch2/matchers/catch_matchers_floating_point.hpp>
+#include <trigdx/reference.hpp>
+
+const size_t N = 1e7;
+
+template <typename Backend> inline void test_sinf(float tol) {
+  std::vector<float> x(N), s_ref(N), s(N);
+
+  for (size_t i = 0; i < N; ++i) {
+    x[i] = float(i) * 0.01f;
+  }
+
+  ReferenceBackend ref;
+  Backend backend;
+  backend.init();
+
+  ref.compute_sinf(N, x.data(), s_ref.data());
+  backend.compute_sinf(N, x.data(), s.data());
+
+  for (size_t i = 0; i < N; ++i) {
+    REQUIRE_THAT(s[i], Catch::Matchers::WithinAbs(s_ref[i], tol));
+  }
+}
+
+template <typename Backend> inline void test_cosf(float tol) {
+  std::vector<float> x(N), c_ref(N), c(N);
+
+  for (size_t i = 0; i < N; ++i) {
+    x[i] = float(i) * 0.01f;
+  }
+
+  ReferenceBackend ref;
+  Backend backend;
+  backend.init();
+
+  ref.compute_cosf(N, x.data(), c_ref.data());
+  backend.compute_cosf(N, x.data(), c.data());
+
+  for (size_t i = 0; i < N; ++i) {
+    REQUIRE_THAT(c[i], Catch::Matchers::WithinAbs(c_ref[i], tol));
+  }
+}
+
+template <typename Backend> inline void test_sincosf(float tol) {
+  std::vector<float> x(N), s_ref(N), c_ref(N), s(N), c(N);
+
+  for (size_t i = 0; i < N; ++i) {
+    x[i] = float(i) * 0.01f;
+  }
+
+  ReferenceBackend ref;
+  Backend backend;
+  backend.init();
+
+  ref.compute_sincosf(N, x.data(), s_ref.data(), c_ref.data());
+  backend.compute_sincosf(N, x.data(), s.data(), c.data());
+
+  for (size_t i = 0; i < N; ++i) {
+    REQUIRE_THAT(s[i], Catch::Matchers::WithinAbs(s_ref[i], tol));
+    REQUIRE_THAT(c[i], Catch::Matchers::WithinAbs(c_ref[i], tol));
+  }
+}