Add operation test

test/operation.cpp

+
+#include <rtg/operation.hpp>
+#include <sstream>
+#include <string>
+#include "test.hpp"
+
+struct simple_operation
+{
+    std::string name() const { return "simple"; }
+    rtg::shape compute_shape(std::vector<rtg::shape>) const { RTG_THROW("not computable"); }
+    rtg::argument compute(std::vector<rtg::argument>) const { RTG_THROW("not computable"); }
+};
+
+void operation_copy_test()
+{
+    simple_operation s{};
+    rtg::operation op1 = s; // NOLINT
+    rtg::operation op2 = op1; // NOLINT
+    EXPECT(s.name() == op1.name());
+    EXPECT(op2.name() == op1.name());
+}
+
+int main()
+{
+    operation_copy_test();
+}