00001 #include <iostream>
00002 #include <istream>
00003 #include <ostream>
00004 #include <sstream>
00005 #include <string>
00006
00007 #include <boost/test/auto_unit_test.hpp>
00008
00009 #include "node.hpp"
00010 #include "variables.hpp"
00011
00012 BOOST_AUTO_TEST_CASE(test_basics)
00013 {
00014 node n(1.0);
00015 BOOST_CHECK_EQUAL(1.0, n.evaluate());
00016 BOOST_CHECK_EQUAL("1", n.to_string());
00017 }
00018
00019 BOOST_AUTO_TEST_CASE(test_list)
00020 {
00021 node_list nl;
00022 nl.push_back(node(1.0));
00023 nl.push_back(node(2.0));
00024 nl.push_back(node(nl[0], '*', nl[1]));
00025 BOOST_CHECK_EQUAL(3, nl.size());
00026 node_list copy(nl);
00027 nl.clear();
00028 BOOST_CHECK_EQUAL(3, copy.size());
00029 BOOST_CHECK_EQUAL("2", copy.at(1).to_string());
00030 }
00031
00032 BOOST_AUTO_TEST_CASE(test_negate)
00033 {
00034 node n(1.0);
00035 node neg('-', n);
00036 BOOST_CHECK_EQUAL(-1.0, neg.evaluate());
00037 }
00038
00039 BOOST_AUTO_TEST_CASE(test_add)
00040 {
00041 node a(1.0), b(2.0), c(3.0);
00042 BOOST_CHECK_EQUAL(3.0, node(a, '+', b).evaluate());
00043 BOOST_CHECK_EQUAL(6.0, node(node(a, '+', b), '+', c).evaluate());
00044 }
00045
00046 BOOST_AUTO_TEST_CASE(test_subtract)
00047 {
00048 node a(1.0), b(2.0), c(3.0);
00049 BOOST_CHECK_EQUAL(1.0, node(c, '-', b).evaluate());
00050 BOOST_CHECK_EQUAL(-4.0, node(node(a, '-', b), '-', c).evaluate());
00051 }
00052
00053 BOOST_AUTO_TEST_CASE(test_multiply)
00054 {
00055 node a(1.0), b(2.0), c(3.0);
00056 BOOST_CHECK_EQUAL(3.0, node(a, '*', c).evaluate());
00057 BOOST_CHECK_EQUAL(6.0, node(node(a, '*', b), '*', c).evaluate());
00058 }
00059
00060 BOOST_AUTO_TEST_CASE(test_divide)
00061 {
00062 node a(1.0), b(2.0), c(6.0);
00063 BOOST_CHECK_EQUAL(0.5, node(a, '/', b).evaluate());
00064 BOOST_CHECK_EQUAL(3.0, node(node(c, '/', a), '/', b).evaluate());
00065 }
00066
00067 BOOST_AUTO_TEST_CASE(test_mix)
00068 {
00069 node a(node(1.5), '*', node(2.0));
00070 BOOST_CHECK_EQUAL(3.0, a.evaluate());
00071
00072 node b(node(3.0), '/', node(1.5));
00073 BOOST_CHECK_EQUAL(2.0, b.evaluate());
00074
00075 node c(a, '+', b);
00076 BOOST_CHECK_EQUAL(5.0, c.evaluate());
00077
00078 node d(node(10), '-', node(3));
00079 BOOST_CHECK_EQUAL(7.0, d.evaluate());
00080
00081 node e('-', node(1.0));
00082 BOOST_CHECK_EQUAL(-1.0, e.evaluate());
00083
00084 node f(node(2), '*', e);
00085 BOOST_CHECK_EQUAL(-2.0, f.evaluate());
00086
00087 node g(d, '+', f);
00088 BOOST_CHECK_EQUAL(5.0, g.evaluate());
00089
00090 node h(c, '-', g);
00091 BOOST_CHECK_EQUAL(0.0, h.evaluate());
00092 }
00093
00094 BOOST_AUTO_TEST_CASE(test_var)
00095 {
00096 set_variable("half", node(node(1), '/', node(2)));
00097 BOOST_CHECK_EQUAL(0.5, get_variable("half").evaluate());
00098 }
00099
00100 BOOST_AUTO_TEST_CASE(test_function_call)
00101 {
00102 identifier_list parms;
00103 parms.push_back("a");
00104 parms.push_back("b");
00105 set_function("test", node(parms, node(node("a"), '+', node("b", node_list()))));
00106 node_list args;
00107 args.push_back(node(1.0));
00108 args.push_back(node(2.0));
00109 node call("test", args);
00110 BOOST_CHECK_EQUAL(3.0, call.evaluate());
00111 }
00112
00113 BOOST_AUTO_TEST_CASE(test_copy)
00114 {
00115 node n(node(node(1), '+', node(2)));
00116 {
00117 node m(n);
00118 n = node('-', m);
00119 BOOST_CHECK_EQUAL(3.0, m.evaluate());
00120 }
00121 {
00122 node a;
00123 a = n;
00124 BOOST_CHECK_EQUAL(-3.0, a.evaluate());
00125 }
00126 BOOST_CHECK_EQUAL(-3.0, n.evaluate());
00127 }
00128
00129 BOOST_AUTO_TEST_SUITE_END();
