1 files changed, 48 insertions, 0 deletions
diff --git a/test/unit_tests/parser.cpp b/test/unit_tests/parser.cpp
new file mode 100644
index 0000000..11f48d3
--- /dev/null
+++ b/test/unit_tests/parser.cpp
@@ -0,0 +1,48 @@
+#include <server/parser.hpp>
+
+#include <boost/test/unit_test.hpp>
+
+BOOST_AUTO_TEST_CASE(test_parser_exec) {
+    using namespace math::server;
+
+    {
+        Parser parser{""};
+        BOOST_CHECK_THROW(parser.exec(), parser::Error);
+    }
+    {
+        Parser parser{"1"};
+        BOOST_TEST(parser.exec() == 1);
+    }
+    {
+        Parser parser{" 1 + "};
+        BOOST_CHECK_THROW(parser.exec(), parser::Error);
+    }
+    {
+        Parser parser{" 1 + 2 "};
+        BOOST_TEST(parser.exec() == 3);
+    }
+    {
+        Parser parser{" 2 * 1 + 3 "};
+        BOOST_TEST(parser.exec() == 5);
+    }
+    {
+        Parser parser{" 2 * (1 + 3) "};
+        BOOST_TEST(parser.exec() == 8);
+    }
+    {
+        Parser parser{" 2 * (1 + 3 "};
+        BOOST_CHECK_THROW(parser.exec(), parser::Error);
+    }
+    {
+        Parser parser{" 2 * (1 + 3) )"};
+        BOOST_CHECK_THROW(parser.exec(), parser::Error);
+    }
+    {
+        Parser parser{" 2 * (1 + 3 * (1 - -3)) "};
+        BOOST_TEST(parser.exec() == 26);
+    }
+    {
+        Parser parser{" -2 * ---- (3 + -100e-1)  "}; // Looks weird, but also works in e.g. Python
+        BOOST_TEST(parser.exec() == 14);
+    }
+}