bool do_parse(std::string str, parsers::simple_expression::result_type &v) {
	v.clear();
	parsers::simple_expression expr;
	return expr.parse(str, v);
}

TEST(ExpressionTest, simple_string_with_expression_1) {
	EXPECT_TRUE(do_parse("HelloWorld${foobar}", v));
	ASSERT_EQ(2, v.size());
	EXPECT_EQ(false, v[0].is_variable);
	EXPECT_EQ("HelloWorld", v[0].name);
	EXPECT_EQ(true, v[1].is_variable);
	EXPECT_EQ("foobar", v[1].name);
}

TEST(ExpressionTest, complext_string_with_expressions_p) {
    EXPECT_TRUE(do_parse("HelloWorld%(foobar)MoreData%(test)-))((-%(test((2)", v));
    ASSERT_EQ(6, v.size());
    EXPECT_EQ("HelloWorld", v[0].name);
    EXPECT_FALSE(v[0].is_variable);
    EXPECT_EQ("foobar", v[1].name);
    EXPECT_TRUE(v[1].is_variable);
    EXPECT_EQ("MoreData", v[2].name);
    EXPECT_FALSE(v[2].is_variable);
    EXPECT_EQ("test", v[3].name);
    EXPECT_TRUE(v[3].is_variable);
    EXPECT_EQ("-))((-", v[4].name);
    EXPECT_FALSE(v[4].is_variable);
    EXPECT_EQ("test((2", v[5].name);
    EXPECT_TRUE(v[5].is_variable);
}