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test-shunting-yard.cpp
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#include <iostream>
#include <memory>
#include <string>
#include "catch.hpp"
#include "./shunting-yard.h"
TokenMap vars, emap, tmap, key3;
void PREPARE_ENVIRONMENT() {
vars["pi"] = 3.14;
vars["b1"] = 0.0;
vars["b2"] = 0.86;
vars["_b"] = 0;
vars["str1"] = "foo";
vars["str2"] = "bar";
vars["str3"] = "foobar";
vars["str4"] = "foo10";
vars["str5"] = "10bar";
vars["map"] = tmap;
tmap["key"] = "mapped value";
tmap["key1"] = "second mapped value";
tmap["key2"] = 10;
tmap["key3"] = key3;
tmap["key3"]["map1"] = "inception1";
tmap["key3"]["map2"] = "inception2";
emap["a"] = 10;
emap["b"] = 20;
}
TEST_CASE("Static calculate::calculate()", "[calculate]") {
REQUIRE(calculator::calculate("-pi + 1", vars).asDouble() == Approx(-2.14));
REQUIRE(calculator::calculate("-pi + 1 * b1", vars).asDouble() == Approx(-3.14));
REQUIRE(calculator::calculate("(20+10)*3/2-3", vars).asDouble() == Approx(42.0));
REQUIRE(calculator::calculate("1 << 4", vars).asDouble() == Approx(16.0));
REQUIRE(calculator::calculate("1+(-2*3)", vars).asDouble() == Approx(-5));
REQUIRE(calculator::calculate("1+_b+(-2*3)", vars).asDouble() == Approx(-5));
REQUIRE(calculator::calculate("4 * -3", vars).asInt() == -12);
}
TEST_CASE("calculate::compile() and calculate::eval()", "[compile]") {
calculator c1;
c1.compile("-pi+1", vars);
REQUIRE(c1.eval().asDouble() == Approx(-2.14));
calculator c2("pi+4", vars);
REQUIRE(c2.eval().asDouble() == Approx(7.14));
REQUIRE(c2.eval().asDouble() == Approx(7.14));
calculator c3("pi+b1+b2", vars);
REQUIRE(c3.eval(vars).asDouble() == Approx(4.0));
}
TEST_CASE("Boolean expressions") {
REQUIRE_FALSE(calculator::calculate("3 < 3").asBool());
REQUIRE(calculator::calculate("3 <= 3").asBool());
REQUIRE_FALSE(calculator::calculate("3 > 3").asBool());
REQUIRE(calculator::calculate("3 >= 3").asBool());
REQUIRE(calculator::calculate("3 == 3").asBool());
REQUIRE_FALSE(calculator::calculate("3 != 3").asBool());
REQUIRE(calculator::calculate("(3 && True) == True").asBool());
REQUIRE_FALSE(calculator::calculate("(3 && 0) == True").asBool());
REQUIRE(calculator::calculate("(3 || 0) == True").asBool());
REQUIRE_FALSE(calculator::calculate("(False || 0) == True").asBool());
REQUIRE_FALSE(calculator::calculate("10 == None").asBool());
REQUIRE(calculator::calculate("10 != None").asBool());
REQUIRE_FALSE(calculator::calculate("10 == 'str'").asBool());
REQUIRE(calculator::calculate("10 != 'str'").asBool());
REQUIRE(calculator::calculate("True")->type == BOOL);
REQUIRE(calculator::calculate("False")->type == BOOL);
REQUIRE(calculator::calculate("10 == 'str'")->type == BOOL);
REQUIRE(calculator::calculate("10 == 10")->type == BOOL);
}
TEST_CASE("String expressions") {
REQUIRE(calculator::calculate("str1 + str2 == str3", vars).asBool());
REQUIRE_FALSE(calculator::calculate("str1 + str2 != str3", vars).asBool());
REQUIRE(calculator::calculate("str1 + 10 == str4", vars).asBool());
REQUIRE(calculator::calculate("10 + str2 == str5", vars).asBool());
REQUIRE(calculator::calculate("'foo' + \"bar\" == str3", vars).asBool());
REQUIRE(calculator::calculate("'foo' + \"bar\" != 'foobar\"'", vars).asBool());
// Test escaping characters:
REQUIRE(calculator::calculate("'foo\\'bar'").asString() == "foo'bar");
REQUIRE(calculator::calculate("\"foo\\\"bar\"").asString() == "foo\"bar");
// Special meaning escaped characters:
REQUIRE(calculator::calculate("'foo\\bar'").asString() == "foo\\bar");
REQUIRE(calculator::calculate("'foo\\nar'").asString() == "foo\nar");
REQUIRE(calculator::calculate("'foo\\tar'").asString() == "foo\tar");
REQUIRE_NOTHROW(calculator::calculate("'foo\\t'"));
REQUIRE(calculator::calculate("'foo\\t'").asString() == "foo\t");
// Scaping linefeed:
REQUIRE_THROWS(calculator::calculate("'foo\nar'"));
REQUIRE(calculator::calculate("'foo\\\nar'").asString() == "foo\nar");
}
TEST_CASE("Testing operator parsing mechanism", "[operator]") {
calculator c1;
// Test if it is detecting operations correctly:
REQUIRE_NOTHROW(c1.compile("['list'] == ['list']"));
REQUIRE(c1.eval() == true);
REQUIRE_NOTHROW(c1.compile("['list']== ['list']"));
REQUIRE(c1.eval() == true);
REQUIRE_NOTHROW(c1.compile("['list'] ==['list']"));
REQUIRE(c1.eval() == true);
REQUIRE_NOTHROW(c1.compile("['list']==['list']"));
REQUIRE(c1.eval() == true);
REQUIRE_NOTHROW(c1.compile("{a:'list'} == {a:'list'}"));
REQUIRE(c1.eval() == true);
REQUIRE_NOTHROW(c1.compile("{a:'list'}== {a:'list'}"));
REQUIRE(c1.eval() == true);
REQUIRE_NOTHROW(c1.compile("{a:'list'} =={a:'list'}"));
REQUIRE(c1.eval() == true);
REQUIRE_NOTHROW(c1.compile("{a:'list'}=={a:'list'}"));
REQUIRE(c1.eval() == true);
}
struct Test;
struct TestData_t {
Test* t;
TestData_t() : t(0) {}
TestData_t(const Test& t);
~TestData_t();
};
struct Test : public Container<TestData_t> {
Test() {}
void set(Test t) { ref->t = new Test(t); }
Test* get() { return ref->t; }
std::weak_ptr<TestData_t> wkref() { return ref; }
void reset() { ref.reset(); }
};
TestData_t::TestData_t(const Test& t) : t(new Test(t)) {}
TestData_t::~TestData_t() { delete t; }
TEST_CASE("Reference counting system", "[rc]") {
SECTION("Testing constructors:") {
Test t1;
Test t2;
t2.set(t1);
REQUIRE(t1.get() == 0);
REQUIRE(*(t2.get()) == t1);
}
// t1 and t2 should have been deleted by now.
// If no exceptions were thrown it is working.
SECTION("Testing cycles") {
std::weak_ptr<TestData_t> r1, r2, r3, r4;
{
Test t1;
Test t2;
t2.set(t1);
// Build a cycle:
REQUIRE_NOTHROW(t1.set(t2));
// Add some non cyclic references:
Test t3;
Test t4;
t4.set(t2);
// Save some weak refs for later tests:
r1 = t1.wkref(); r2 = t2.wkref();
r3 = t3.wkref(); r4 = t4.wkref();
}
CHECK(r1.expired() == false);
CHECK(r2.expired() == false);
CHECK(r3.expired() == true);
CHECK(r4.expired() == true);
REQUIRE_NOTHROW(r1.lock()->t->reset());
CHECK(r1.expired() == true);
CHECK(r2.expired() == true);
}
// t1, t2, t3 and t4 should have been deleted by now.
// If no exceptions were thrown it is working.
// Note:
// There should be no memory leaks and no "still reachable"
// blocks when testing with valgrind.
}
TEST_CASE("String operations") {
// String formatting:
REQUIRE(calculator::calculate("'the test %s working' % 'is'").asString() == "the test is working");
REQUIRE(calculator::calculate("'the tests %s %s' % ('are', 'working')").asString() == "the tests are working");
REQUIRE(calculator::calculate("'works %s% %s' % (100, 'now')").asString() == "works 100% now");
REQUIRE(calculator::calculate("'escape \\%s works %s' % ('now')").asString() == "escape %s works now");
REQUIRE_THROWS(calculator::calculate("'the tests %s' % ('are', 'working')"));
REQUIRE_THROWS(calculator::calculate("'the tests %s %s' % ('are')"));
// String indexing:
REQUIRE(calculator::calculate("'foobar'[0]").asString() == "f");
REQUIRE(calculator::calculate("'foobar'[3]").asString() == "b");
REQUIRE(calculator::calculate("'foobar'[-1]").asString() == "r");
REQUIRE(calculator::calculate("'foobar'[-3]").asString() == "b");
}
TEST_CASE("Map access expressions", "[map][map-access]") {
REQUIRE(calculator::calculate("map[\"key\"]", vars).asString() == "mapped value");
REQUIRE(calculator::calculate("map[\"key\"+1]", vars).asString() ==
"second mapped value");
REQUIRE(calculator::calculate("map[\"key\"+2] + 3 == 13", vars).asBool() == true);
REQUIRE(calculator::calculate("map.key1", vars).asString() == "second mapped value");
REQUIRE(calculator::calculate("map.key3.map1", vars).asString() == "inception1");
REQUIRE(calculator::calculate("map.key3['map2']", vars).asString() == "inception2");
REQUIRE(calculator::calculate("map[\"no_key\"]", vars) == packToken::None());
}
TEST_CASE("Prototypical inheritance tests") {
TokenMap vars;
TokenMap parent;
TokenMap child(&parent);
TokenMap grand_child(&child);
vars["a"] = 0;
vars["parent"] = parent;
vars["child"] = child;
vars["grand_child"] = grand_child;
parent["a"] = 10;
parent["b"] = 20;
parent["c"] = 30;
child["b"] = 21;
child["c"] = 31;
grand_child["c"] = 32;
REQUIRE(calculator::calculate("grand_child.a - 10", vars).asDouble() == 0);
REQUIRE(calculator::calculate("grand_child.b - 20", vars).asDouble() == 1);
REQUIRE(calculator::calculate("grand_child.c - 30", vars).asDouble() == 2);
REQUIRE_NOTHROW(calculator::calculate("grand_child.a = 12", vars));
REQUIRE(calculator::calculate("parent.a", vars).asDouble() == 10);
REQUIRE(calculator::calculate("child.a", vars).asDouble() == 10);
REQUIRE(calculator::calculate("grand_child.a", vars).asDouble() == 12);
}
TEST_CASE("Map usage expressions", "[map][map-usage]") {
TokenMap vars;
vars["my_map"] = TokenMap();
REQUIRE_NOTHROW(calculator::calculate("my_map['a'] = 1", vars));
REQUIRE_NOTHROW(calculator::calculate("my_map['b'] = 2", vars));
REQUIRE_NOTHROW(calculator::calculate("my_map['c'] = 3", vars));
REQUIRE(vars["my_map"].str() == "{ \"a\": 1, \"b\": 2, \"c\": 3 }");
REQUIRE(calculator::calculate("my_map.len()", vars).asInt() == 3);
REQUIRE_NOTHROW(calculator::calculate("my_map.pop('b')", vars));
REQUIRE(vars["my_map"].str() == "{ \"a\": 1, \"c\": 3 }");
REQUIRE(calculator::calculate("my_map.len()", vars).asDouble() == 2);
REQUIRE_NOTHROW(calculator::calculate("default = my_map.pop('b', 3)", vars));
REQUIRE(vars["default"].asInt() == 3);
}
TEST_CASE("List usage expressions", "[list]") {
TokenMap vars;
vars["my_list"] = TokenList();
REQUIRE_NOTHROW(calculator::calculate("my_list.push(1)", vars));
REQUIRE_NOTHROW(calculator::calculate("my_list.push(2)", vars));
REQUIRE_NOTHROW(calculator::calculate("my_list.push(3)", vars));
REQUIRE(vars["my_list"].str() == "[ 1, 2, 3 ]");
REQUIRE(calculator::calculate("my_list.len()", vars).asInt() == 3);
REQUIRE_NOTHROW(calculator::calculate("my_list.pop(1)", vars));
REQUIRE(vars["my_list"].str() == "[ 1, 3 ]");
REQUIRE(calculator::calculate("my_list.len()", vars).asDouble() == 2);
REQUIRE_NOTHROW(calculator::calculate("my_list.pop()", vars));
REQUIRE(vars["my_list"].str() == "[ 1 ]");
REQUIRE(calculator::calculate("my_list.len()", vars).asDouble() == 1);
vars["list"] = TokenList();
REQUIRE_NOTHROW(calculator::calculate("list.push(4).push(5).push(6)", vars));
REQUIRE_NOTHROW(calculator::calculate("my_list.push(2).push(3)", vars));
REQUIRE(vars["my_list"].str() == "[ 1, 2, 3 ]");
REQUIRE(vars["list"].str() == "[ 4, 5, 6 ]");
REQUIRE_NOTHROW(calculator::calculate("concat = my_list + list", vars));
REQUIRE(vars["concat"].str() == "[ 1, 2, 3, 4, 5, 6 ]");
REQUIRE(calculator::calculate("concat.len()", vars).asDouble() == 6);
// Reverse index like python:
REQUIRE_NOTHROW(calculator::calculate("concat[-2] = 10", vars));
REQUIRE_NOTHROW(calculator::calculate("concat[2] = '3'", vars));
REQUIRE_NOTHROW(calculator::calculate("concat[3] = None", vars));
REQUIRE(vars["concat"].str() == "[ 1, 2, \"3\", None, 10, 6 ]");
// List index out of range:
REQUIRE_THROWS(calculator::calculate("concat[10]", vars));
REQUIRE_THROWS(calculator::calculate("concat[-10]", vars));
REQUIRE_THROWS(vars["concat"].asList()[10]);
REQUIRE_THROWS(vars["concat"].asList()[-10]);
// Testing push and pop functions:
TokenList L;
REQUIRE_NOTHROW(L.push("my value"));
REQUIRE_NOTHROW(L.push(10));
REQUIRE_NOTHROW(L.push(TokenMap()));
REQUIRE_NOTHROW(L.push(TokenList()));
REQUIRE(packToken(L).str() == "[ \"my value\", 10, {}, [] ]");
REQUIRE(L.pop().str() == "[]");
REQUIRE(packToken(L).str() == "[ \"my value\", 10, {} ]");
}
TEST_CASE("Tuple usage expressions", "[tuple]") {
TokenMap vars;
calculator c;
REQUIRE_NOTHROW(c.compile("'key':'value'"));
STuple* t0 = static_cast<STuple*>(c.eval()->clone());
REQUIRE(t0->type == STUPLE);
REQUIRE(t0->list().size() == 2);
delete t0;
REQUIRE_NOTHROW(c.compile("1, 'key':'value', 3"));
Tuple* t1 = static_cast<Tuple*>(c.eval()->clone());
REQUIRE(t1->type == TUPLE);
REQUIRE(t1->list().size() == 3);
STuple* t2 = static_cast<STuple*>(t1->list()[1]->clone());
REQUIRE(t2->type == STUPLE);
REQUIRE(t2->list().size() == 2);
delete t1;
delete t2;
GlobalScope global;
REQUIRE_NOTHROW(c.compile("pow, None"));
REQUIRE(c.eval(global).str() == "([Function: pow], None)");
}
TEST_CASE("List and map constructors usage") {
GlobalScope vars;
REQUIRE_NOTHROW(calculator::calculate("my_map = map()", vars));
REQUIRE_NOTHROW(calculator::calculate("my_list = list()", vars));
REQUIRE(vars["my_map"]->type == MAP);
REQUIRE(vars["my_list"]->type == LIST);
REQUIRE(calculator::calculate("my_list.len()", vars).asDouble() == 0);
REQUIRE_NOTHROW(calculator::calculate("my_list = list(1,'2',None,map(),list('sub_list'))", vars));
REQUIRE(vars["my_list"].str() == "[ 1, \"2\", None, {}, [ \"sub_list\" ] ]");
// Test initialization by Iterator:
REQUIRE_NOTHROW(calculator::calculate("my_map = map()", vars));
REQUIRE_NOTHROW(calculator::calculate("my_map.a = 1", vars));
REQUIRE_NOTHROW(calculator::calculate("my_map.b = 2", vars));
REQUIRE_NOTHROW(calculator::calculate("my_list = list(my_map)", vars));
REQUIRE(vars["my_list"].str() == "[ \"a\", \"b\" ]");
}
TEST_CASE("Map '{}' and list '[]' constructor usage") {
calculator c1;
TokenMap vars;
REQUIRE_NOTHROW(c1.compile("{ 'a': 1 }.a"));
REQUIRE(c1.eval().asInt() == 1);
REQUIRE_NOTHROW(c1.compile("M = {'a': 1}"));
REQUIRE(c1.eval().str() == "{ \"a\": 1 }");
REQUIRE_NOTHROW(c1.compile("[ 1, 2 ].len()"));
REQUIRE(c1.eval().asInt() == 2);
REQUIRE_NOTHROW(c1.compile("L = [1,2]"));
REQUIRE(c1.eval().str() == "[ 1, 2 ]");
}
TEST_CASE("Test list iterable behavior") {
GlobalScope vars;
REQUIRE_NOTHROW(calculator::calculate("L = list(1,2,3)", vars));
Iterator* it;
REQUIRE_NOTHROW(it = vars["L"].asList().getIterator());
packToken* next;
REQUIRE_NOTHROW(next = it->next());
REQUIRE(next != 0);
REQUIRE(next->asDouble() == 1);
REQUIRE_NOTHROW(next = it->next());
REQUIRE(next != 0);
REQUIRE(next->asDouble() == 2);
REQUIRE_NOTHROW(next = it->next());
REQUIRE(next != 0);
REQUIRE(next->asDouble() == 3);
REQUIRE_NOTHROW(next = it->next());
REQUIRE(next == 0);
delete it;
}
TEST_CASE("Test map iterable behavior") {
GlobalScope vars;
vars["M"] = TokenMap();
vars["M"]["a"] = 1;
vars["M"]["b"] = 2;
vars["M"]["c"] = 3;
Iterator* it;
REQUIRE_NOTHROW(it = vars["M"].asMap().getIterator());
packToken* next;
REQUIRE_NOTHROW(next = it->next());
REQUIRE(next != 0);
REQUIRE(next->asString() == "a");
REQUIRE_NOTHROW(next = it->next());
REQUIRE(next != 0);
REQUIRE(next->asString() == "b");
REQUIRE_NOTHROW(next = it->next());
REQUIRE(next != 0);
REQUIRE(next->asString() == "c");
REQUIRE_NOTHROW(next = it->next());
REQUIRE(next == 0);
delete it;
}
TEST_CASE("Function usage expressions") {
GlobalScope vars;
vars["pi"] = 3.141592653589793;
vars["a"] = -4;
REQUIRE(calculator::calculate("sqrt(4)", vars).asDouble() == 2);
REQUIRE(calculator::calculate("sin(pi)", vars).asDouble() == Approx(0));
REQUIRE(calculator::calculate("cos(pi/2)", vars).asDouble() == Approx(0));
REQUIRE(calculator::calculate("tan(pi)", vars).asDouble() == Approx(0));
calculator c("a + sqrt(4) * 2");
REQUIRE(c.eval(vars).asDouble() == 0);
REQUIRE(calculator::calculate("sqrt(4-a*3) * 2", vars).asDouble() == 8);
REQUIRE(calculator::calculate("abs(42)", vars).asDouble() == 42);
REQUIRE(calculator::calculate("abs(-42)", vars).asDouble() == 42);
// With more than one argument:
REQUIRE(calculator::calculate("pow(2,2)", vars).asDouble() == 4);
REQUIRE(calculator::calculate("pow(2,3)", vars).asDouble() == 8);
REQUIRE(calculator::calculate("pow(2,a)", vars).asDouble() == Approx(1./16));
REQUIRE(calculator::calculate("pow(2,a+4)", vars).asDouble() == 1);
REQUIRE_THROWS(calculator::calculate("foo(10)"));
REQUIRE_THROWS(calculator::calculate("foo(10),"));
REQUIRE_NOTHROW(calculator::calculate("foo,(10)"));
REQUIRE(TokenMap::default_global()["abs"].str() == "[Function: abs]");
REQUIRE(calculator::calculate("1,2,3,4,5").str() == "(1, 2, 3, 4, 5)");
REQUIRE(calculator::calculate(" float('0.1') ").asDouble() == 0.1);
REQUIRE(calculator::calculate("float(10)").asDouble() == 10);
vars["a"] = 0;
REQUIRE(calculator::calculate(" eval('a = 3') ", vars).asDouble() == 3);
REQUIRE(vars["a"] == 3);
vars["m"] = TokenMap();
REQUIRE_THROWS(calculator::calculate("1 + float(m) * 3", vars));
REQUIRE_THROWS(calculator::calculate("float('not a number')"));
REQUIRE_NOTHROW(calculator::calculate("pow(1,-10)"));
REQUIRE_NOTHROW(calculator::calculate("pow(1,+10)"));
vars["base"] = 2;
c.compile("pow(base,2)", vars);
vars["base"] = 3;
REQUIRE(c.eval().asDouble() == 4);
REQUIRE(c.eval(vars).asDouble() == 9);
}
TEST_CASE("Built-in extend() function") {
GlobalScope vars;
REQUIRE_NOTHROW(calculator::calculate("a = map()", vars));
REQUIRE_NOTHROW(calculator::calculate("b = extend(a)", vars));
REQUIRE_NOTHROW(calculator::calculate("a.a = 10", vars));
REQUIRE(calculator::calculate("b.a", vars).asDouble() == 10);
REQUIRE_NOTHROW(calculator::calculate("b.a = 20", vars));
REQUIRE(calculator::calculate("a.a", vars).asDouble() == 10);
REQUIRE(calculator::calculate("b.a", vars).asDouble() == 20);
REQUIRE_NOTHROW(calculator::calculate("c = extend(b)", vars));
REQUIRE(calculator::calculate("a.instanceof(b)", vars).asBool() == false);
REQUIRE(calculator::calculate("a.instanceof(c)", vars).asBool() == false);
REQUIRE(calculator::calculate("b.instanceof(a)", vars).asBool() == true);
REQUIRE(calculator::calculate("c.instanceof(a)", vars).asBool() == true);
REQUIRE(calculator::calculate("c.instanceof(b)", vars).asBool() == true);
}
// Used on the test case below:
packToken map_str(TokenMap scope) {
return "custom map str";
}
TEST_CASE("Built-in str() function") {
REQUIRE(calculator::calculate(" str(None) ").asString() == "None");
REQUIRE(calculator::calculate(" str(10) ").asString() == "10");
REQUIRE(calculator::calculate(" str(10.1) ").asString() == "10.1");
REQUIRE(calculator::calculate(" str('texto') ").asString() == "texto");
REQUIRE(calculator::calculate(" str(list(1,2,3)) ").asString() == "[ 1, 2, 3 ]");
REQUIRE(calculator::calculate(" str(map()) ").asString() == "{}");
REQUIRE(calculator::calculate(" str(map) ").asString() == "[Function: map]");
vars["iterator"] = packToken(new TokenList());
vars["iterator"]->type = IT;
REQUIRE(calculator::calculate("str(iterator)", vars).asString() == "[Iterator]");
TokenMap vars;
vars["my_map"] = TokenMap();
vars["my_map"]["__str__"] = CppFunction(&map_str, {}, "map_str");
// Test `packToken_str()` function declared on builtin-features/functions.h:
REQUIRE(calculator::calculate(" str(my_map) ", vars) == "custom map str");
}
TEST_CASE("Multiple argument functions") {
GlobalScope vars;
REQUIRE_NOTHROW(calculator::calculate("total = sum(1,2,3,4)", vars));
REQUIRE(vars["total"].asDouble() == 10);
}
TEST_CASE("Passing keyword arguments to functions", "[function][kwargs]") {
GlobalScope vars;
calculator c1;
REQUIRE_NOTHROW(c1.compile("my_map = map('a':1,'b':2)", vars));
REQUIRE_NOTHROW(c1.eval(vars));
TokenMap map;
REQUIRE_NOTHROW(map = vars["my_map"].asMap());
REQUIRE(map["a"].asInt() == 1);
REQUIRE(map["b"].asInt() == 2);
double result;
REQUIRE_NOTHROW(c1.compile("result = pow(2, 'exp': 3)"));
REQUIRE_NOTHROW(c1.eval(vars));
REQUIRE_NOTHROW(result = vars["result"].asDouble());
REQUIRE(result == 8.0);
REQUIRE_NOTHROW(c1.compile("result = pow('exp': 3, 'number': 2)"));
REQUIRE_NOTHROW(c1.eval(vars));
REQUIRE_NOTHROW(result = vars["result"].asDouble());
REQUIRE(result == 8.0);
}
TEST_CASE("Default functions") {
REQUIRE(calculator::calculate("type(None)").asString() == "none");
REQUIRE(calculator::calculate("type(10.0)").asString() == "real");
REQUIRE(calculator::calculate("type(10)").asString() == "integer");
REQUIRE(calculator::calculate("type(True)").asString() == "boolean");
REQUIRE(calculator::calculate("type('str')").asString() == "string");
REQUIRE(calculator::calculate("type(str)").asString() == "function");
REQUIRE(calculator::calculate("type(list())").asString() == "list");
REQUIRE(calculator::calculate("type(map())").asString() == "map");
TokenMap vars;
vars["mymap"] = TokenMap();
vars["mymap"]["__type__"] = "my_type";
REQUIRE(calculator::calculate("type(mymap)", vars).asString() == "my_type");
}
TEST_CASE("Type specific functions") {
TokenMap vars;
vars["s1"] = "String";
vars["s2"] = " a b ";
REQUIRE(calculator::calculate("s1.len()", vars).asDouble() == 6);
REQUIRE(calculator::calculate("s1.lower()", vars).asString() == "string");
REQUIRE(calculator::calculate("s1.upper()", vars).asString() == "STRING");
REQUIRE(calculator::calculate("s2.strip()", vars).asString() == "a b");
calculator c1("L = 'a, b'.split(', ')", vars);
REQUIRE(c1.eval(vars).str() == "[ \"a\", \"b\" ]");
calculator c2("L.join(', ')");
REQUIRE(c2.eval(vars).asString() == "a, b");
}
TEST_CASE("Assignment expressions") {
GlobalScope vars;
calculator::calculate("assignment = 10", vars);
// Assigning to an unexistent variable works.
REQUIRE(calculator::calculate("assignment", vars).asDouble() == 10);
// Assigning to existent variables should work as well.
REQUIRE_NOTHROW(calculator::calculate("assignment = 20", vars));
REQUIRE(calculator::calculate("assignment", vars).asDouble() == 20);
// Chain assigning should work with a right-to-left order:
REQUIRE_NOTHROW(calculator::calculate("a = b = 20", vars));
REQUIRE_NOTHROW(calculator::calculate("a = b = c = d = 30", vars));
REQUIRE(calculator::calculate("a == b && b == c && b == d && d == 30", vars) == true);
REQUIRE_NOTHROW(calculator::calculate("teste='b'"));
// The user should not be able to explicit overwrite variables
// he did not declare. So by default he can't overwrite variables
// on the global scope:
REQUIRE_NOTHROW(calculator::calculate("print = 'something'", vars));
REQUIRE(vars["print"].asString() == "something");
REQUIRE(TokenMap::default_global()["print"].str() == "[Function: print]");
// But it should overwrite variables
// on non-local scopes as expected:
TokenMap child = vars.getChild();
REQUIRE_NOTHROW(calculator::calculate("print = 'something else'", vars));
REQUIRE(vars["print"].asString() == "something else");
REQUIRE(child["print"]->type == NONE);
}
TEST_CASE("Assignment expressions on maps") {
vars["m"] = TokenMap();
calculator::calculate("m['asn'] = 10", vars);
// Assigning to an unexistent variable works.
REQUIRE(calculator::calculate("m['asn']", vars).asDouble() == 10);
// Assigning to existent variables should work as well.
REQUIRE_NOTHROW(calculator::calculate("m['asn'] = 20", vars));
REQUIRE(calculator::calculate("m['asn']", vars).asDouble() == 20);
// Chain assigning should work with a right-to-left order:
REQUIRE_NOTHROW(calculator::calculate("m.a = m.b = 20", vars));
REQUIRE_NOTHROW(calculator::calculate("m.a = m.b = m.c = m.d = 30", vars));
REQUIRE(calculator::calculate("m.a == m.b && m.b == m.c && m.b == m.d && m.d == 30", vars) == true);
REQUIRE_NOTHROW(calculator::calculate("m.m = m", vars));
REQUIRE(calculator::calculate("10 + (a = m.a = m.m.b)", vars) == 40);
REQUIRE_NOTHROW(calculator::calculate("m.m = None", vars));
REQUIRE(calculator::calculate("m.m", vars)->type == NONE);
}
TEST_CASE("Scope management") {
calculator c("pi+b1+b2");
TokenMap parent;
parent["pi"] = 3.14;
parent["b1"] = 0;
parent["b2"] = 0.86;
TokenMap child = parent.getChild();
// Check scope extension:
REQUIRE(c.eval(child).asDouble() == Approx(4));
child["b2"] = 1.0;
REQUIRE(c.eval(child).asDouble() == Approx(4.14));
// Testing with 3 namespaces:
TokenMap vmap = child.getChild();
vmap["b1"] = -1.14;
REQUIRE(c.eval(vmap).asDouble() == Approx(3.0));
TokenMap copy = vmap;
calculator c2("pi+b1+b2", copy);
REQUIRE(c2.eval().asDouble() == Approx(3.0));
REQUIRE(calculator::calculate("pi+b1+b2", copy).asDouble() == Approx(3.0));
}
// Working as a slave parser implies it will return
// a pointer to the place it has stopped parsing
// and accept a list of delimiters that should make it stop.
TEST_CASE("Parsing as slave parser") {
const char* original_code = "a=1; b=2\n c=a+b }";
const char* code = original_code;
TokenMap vars;
calculator c1, c2, c3;
// With static function:
REQUIRE_NOTHROW(calculator::calculate(code, vars, ";}\n", &code));
REQUIRE(code == &(original_code[3]));
REQUIRE(vars["a"].asDouble() == 1);
// With constructor:
REQUIRE_NOTHROW((c2 = calculator(++code, vars, ";}\n", &code)));
REQUIRE(code == &(original_code[8]));
// With compile method:
REQUIRE_NOTHROW(c3.compile(++code, vars, ";}\n", &code));
REQUIRE(code == &(original_code[16]));
REQUIRE_NOTHROW(c2.eval(vars));
REQUIRE(vars["b"] == 2);
REQUIRE_NOTHROW(c3.eval(vars));
REQUIRE(vars["c"] == 3);
// Testing with delimiter between brackets of the expression:
const char* if_code = "if ( a+(b*c) == 3 ) { ... }";
const char* multiline = "a = (\n 1,\n 2,\n 3\n)\n print(a);";
code = if_code;
REQUIRE_NOTHROW(calculator::calculate(if_code+4, vars, ")", &code));
REQUIRE(code == &(if_code[18]));
code = multiline;
REQUIRE_NOTHROW(calculator::calculate(multiline, vars, "\n;", &code));
REQUIRE(code == &(multiline[21]));
const char* error_test = "a = (; 1,; 2,; 3;)\n print(a);";
REQUIRE_THROWS(calculator::calculate(error_test, vars, "\n;", &code));
}
// This function is for internal use only:
TEST_CASE("operation_id() function", "[op_id]") {
#define opID(t1, t2) Operation::build_mask(t1, t2)
REQUIRE((opID(NONE, NONE)) == 0x0000000100000001);
REQUIRE((opID(FUNC, FUNC)) == 0x0000002000000020);
REQUIRE((opID(FUNC, ANY_TYPE)) == 0x000000200000FFFF);
REQUIRE((opID(FUNC, ANY_TYPE)) == 0x000000200000FFFF);
}
/* * * * * Declaring adhoc operations * * * * */
struct myCalc : public calculator {
static Config_t& my_config() {
static Config_t conf;
return conf;
}
const Config_t Config() const { return my_config(); }
using calculator::calculator;
};
packToken op1(const packToken& left, const packToken& right,
evaluationData* data) {
return calculator::Default().opMap["%"][0].exec(left, right, data);
}
packToken op2(const packToken& left, const packToken& right,
evaluationData* data) {
return calculator::Default().opMap[","][0].exec(left, right, data);
}
packToken op3(const packToken& left, const packToken& right,
evaluationData* data) {
return left.asDouble() - right.asDouble();
}
packToken op4(const packToken& left, const packToken& right,
evaluationData* data) {
return left.asDouble() * right.asDouble();
}
packToken slash_op(const packToken& left, const packToken& right,
evaluationData* data) {
return left.asDouble() / right.asDouble();
}
packToken not_unary_op(const packToken& left, const packToken& right,
evaluationData* data) {
return ~right.asInt();
}
packToken not_right_unary_op(const packToken& left, const packToken& right,
evaluationData* data) {
return ~left.asInt();
}
packToken lazy_increment(const packToken& left, const packToken& right,
evaluationData* data) {
std::string var_name = data->left->key.asString();
TokenMap* map_p = data->scope.findMap(var_name);
if (map_p == 0) {
map_p = &data->scope;
}
packToken value = (*map_p)[var_name];
(*map_p)[var_name] = value.asInt() + 1;
return value;
}
packToken eager_increment(const packToken& left, const packToken& right,
evaluationData* data) {
std::string var_name = data->right->key.asString();
TokenMap* map_p = data->scope.findMap(var_name);
if (map_p == 0) {
map_p = &data->scope;
}
return (*map_p)[var_name] = (*map_p)[var_name].asInt() + 1;
}
packToken assign_right(const packToken& left, const packToken& right,
evaluationData* data) {
std::string var_name = data->right->key.asString();
TokenMap* map_p = data->scope.findMap(var_name);
if (map_p == 0) {
map_p = &data->scope;
}
return (*map_p)[var_name] = left;
}
packToken assign_left(const packToken& left, const packToken& right,
evaluationData* data) {
std::string var_name = data->left->key.asString();
TokenMap* map_p = data->scope.findMap(var_name);
if (map_p == 0) {
map_p = &data->scope;
}
return (*map_p)[var_name] = right;
}
void slash(const char* expr, const char** rest, rpnBuilder* data) {
data->handle_op("*");
// Eat the next character:
*rest = ++expr;
}
void slash_slash(const char* expr, const char** rest, rpnBuilder* data) {
data->handle_op("-");
}
struct myCalcStartup {
myCalcStartup() {
OppMap_t& opp = myCalc::my_config().opPrecedence;
opp.add(".", 1);
opp.add("+", 2); opp.add("*", 2);
opp.add("/", 3);
opp.add("<=", 4); opp.add("=>", 4);
// This operator will evaluate from right to left:
opp.add("-", -3);
// Unary operators:
opp.addUnary("$$", 2);
opp.addUnary("~", 4);
opp.addRightUnary("!", 1);
opp.addRightUnary("$$", 2);
opp.addRightUnary("~", 4);
opMap_t& opMap = myCalc::my_config().opMap;
opMap.add({STR, "+", TUPLE}, &op1);
opMap.add({ANY_TYPE, ".", ANY_TYPE}, &op2);
opMap.add({NUM, "-", NUM}, &op3);
opMap.add({NUM, "*", NUM}, &op4);
opMap.add({NUM, "/", NUM}, &slash_op);
opMap.add({UNARY, "~", NUM}, ¬_unary_op);
opMap.add({NUM, "~", UNARY}, ¬_right_unary_op);
opMap.add({NUM, "!", UNARY}, ¬_right_unary_op);
opMap.add({NUM, "$$", UNARY}, &lazy_increment);
opMap.add({UNARY, "$$", NUM}, &eager_increment);
opMap.add({ANY_TYPE, "=>", REF}, &assign_right);
opMap.add({REF, "<=", ANY_TYPE}, &assign_left);
parserMap_t& parser = myCalc::my_config().parserMap;
parser.add('/', &slash);
parser.add("//", &slash_slash);
}
} myCalcStartup;
/* * * * * Testing adhoc operations * * * * */
TEST_CASE("Adhoc operations", "[operation][config]") {
myCalc c1, c2;
const char* exp = "'Lets create %s operators%s' + ('adhoc' . '!' )";
REQUIRE_NOTHROW(c1.compile(exp));
REQUIRE_NOTHROW(c2 = myCalc(exp, vars, 0, 0, myCalc::my_config()));
REQUIRE(c1.eval() == "Lets create adhoc operators!");
REQUIRE(c2.eval() == "Lets create adhoc operators!");
// Testing opPrecedence:
exp = "'Lets create %s operators%s' + 'adhoc' . '!'";
REQUIRE_NOTHROW(c1.compile(exp));
REQUIRE(c1.eval() == "Lets create adhoc operators!");
exp = "2 - 1 * 1"; // 2 - (1 * 1)
REQUIRE_NOTHROW(c1.compile(exp));
REQUIRE(c1.eval() == 1);
// Testing op associativity:
exp = "2 - 1";
REQUIRE_NOTHROW(c1.compile(exp));
REQUIRE(c1.eval() == 1);
// Associativity right to left, i.e. 2 - (1 - 1)
exp = "2 - 1 - 1";
REQUIRE_NOTHROW(c1.compile(exp));
REQUIRE(c1.eval() == 2);
}
TEST_CASE("Adhoc unary operations", "[operation][unary][config]") {
SECTION("Left Unary Operators") {
myCalc c1;
// * * Using custom unary operators: * * //
REQUIRE_NOTHROW(c1.compile("~10"));
REQUIRE(c1.eval() == ~10l);
REQUIRE_NOTHROW(c1.compile("2 * ~10"));
REQUIRE(c1.eval() == 2 * ~10l);
REQUIRE_NOTHROW(c1.compile("2 * ~10 * 3"));
REQUIRE(c1.eval() == 2 * ~(10l*3));
calculator c2;
// * * Using built-in unary operators: * * //
// Testing inside brackets:
REQUIRE_NOTHROW(c2.compile("(2 * -10) * 3"));
REQUIRE(c2.eval() == 2 * -10 * 3);
REQUIRE_NOTHROW(c2.compile("2 * (-10 * 3)"));
REQUIRE(c2.eval() == 2 * (-10 * 3));
REQUIRE_NOTHROW(c2.compile("2 * -(10 * 3)"));
REQUIRE(c2.eval() == 2 * -(10 * 3));
// Testing opPrecedence:
REQUIRE_NOTHROW(c2.compile("-10 - 2")); // (-10) - 2
REQUIRE(c2.eval() == -12);
TokenMap vars;
vars["scope_map"] = TokenMap();
vars["scope_map"]["my_var"] = 10;
REQUIRE_NOTHROW(c2.compile("- scope_map . my_var")); // - (map . key2)
REQUIRE(c2.eval(vars) == -10);
}
SECTION("Right unary operators") {
myCalc c1;
// Testing with lower op precedence:
REQUIRE_NOTHROW(c1.compile("10~"));
REQUIRE(c1.eval() == ~10l);
REQUIRE_NOTHROW(c1.compile("2 * 10~"));
REQUIRE(c1.eval() == ~(2*10l));
REQUIRE_NOTHROW(c1.compile("2 * 10~ * 3"));
REQUIRE(c1.eval() == ~(2*10l) * 3);
// Testing with higher op precedence:
REQUIRE_NOTHROW(c1.compile("10!"));
REQUIRE(c1.eval() == ~10l);
REQUIRE_NOTHROW(c1.compile("2 * 10!"));
REQUIRE(c1.eval() == 2 * ~10l);
REQUIRE_NOTHROW(c1.compile("2 * 10! * 3"));
REQUIRE(c1.eval() == 2 * ~10l * 3);
// Testing inside brackets:
REQUIRE_NOTHROW(c1.compile("2 * (10~ * 3)"));
REQUIRE(c1.eval() == 2 * ~10l * 3);
REQUIRE_NOTHROW(c1.compile("(2 * 10~) * 3"));
REQUIRE(c1.eval() == ~(2*10l) * 3);
REQUIRE_NOTHROW(c1.compile("(2 * 10)~ * 3"));
REQUIRE(c1.eval() == ~(2*10l) * 3);
}
}
TEST_CASE("Adhoc reference operations", "[operation][reference][config]") {
myCalc c1;
TokenMap scope;
scope["a"] = 10;
REQUIRE_NOTHROW(c1.compile("$$ a"));
REQUIRE(c1.eval(scope) == 11);