437 lines
17 KiB
C++
437 lines
17 KiB
C++
/* file tokenizer.test.cpp
|
|
*
|
|
* author: Roland Conybeare
|
|
*/
|
|
|
|
#include "xo/tokenizer/tokenizer.hpp"
|
|
#include <catch2/catch.hpp>
|
|
|
|
namespace xo {
|
|
using xo::scm::tokentype;
|
|
using token = xo::scm::token<char>;
|
|
using xo::scm::span;
|
|
|
|
namespace ut {
|
|
/** Two-pass test harness.
|
|
*
|
|
* First pass - verify test assertions.
|
|
* Second pass only if first pass failed.
|
|
* On second pass, enable verbose logging
|
|
**/
|
|
struct rehearser {
|
|
/* expect at most one iterator to exist per TestRehearser instance **/
|
|
struct iterator {
|
|
iterator(rehearser* parent, std::uint32_t attention) : parent_{parent}, attention_{attention} {}
|
|
|
|
iterator& operator++();
|
|
std::uint32_t operator*() { return attention_; }
|
|
|
|
bool operator==(const iterator& ix2) const {
|
|
return (parent_ == ix2.parent_) && (attention_ == ix2.attention_);
|
|
}
|
|
|
|
rehearser* parent_ = nullptr;
|
|
std::uint32_t attention_ = 0;
|
|
|
|
};
|
|
|
|
bool is_second_pass() const { return attention_ == 1; }
|
|
bool enable_debug() const { return is_second_pass(); }
|
|
|
|
iterator begin() { return iterator(this, 0); }
|
|
iterator end() { return iterator(this, 2); }
|
|
|
|
public:
|
|
/** pass number: 0 or 1 **/
|
|
std::uint32_t attention_ = 0;
|
|
/** @brief set to true when test starts; false if first pass fails **/
|
|
bool ok_flag_ = true;
|
|
};
|
|
|
|
auto rehearser::iterator::operator++() -> iterator&
|
|
{
|
|
++attention_;
|
|
|
|
if (parent_->ok_flag_ && attention_ == 1) {
|
|
/* skip 2nd pass */
|
|
++attention_;
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
/* use this instead of REQUIRE(expr) in context of a test_rehearser */
|
|
# define REHEARSE(rehearser, expr) \
|
|
if (rehearser.is_second_pass()) { \
|
|
REQUIRE((expr)); \
|
|
} else { \
|
|
REQUIRE(true); \
|
|
rehearser.ok_flag_ &= (expr); \
|
|
}
|
|
|
|
/* note: trivial REQUIRE() call in else branch bc we still want
|
|
* catch2 to count assertions when verification succeeds
|
|
*/
|
|
# define REQUIRE_ORCAPTURE(ok_flag, catch_flag, expr) \
|
|
if (catch_flag) { \
|
|
REQUIRE((expr)); \
|
|
} else { \
|
|
REQUIRE(true); \
|
|
ok_flag &= (expr); \
|
|
}
|
|
|
|
# define REQUIRE_ORFAIL(ok_flag, catch_flag, expr) \
|
|
REQUIRE_ORCAPTURE(ok_flag, catch_flag, expr); \
|
|
if (!ok_flag) \
|
|
return ok_flag
|
|
|
|
namespace {
|
|
struct testcase_tkz {
|
|
std::string input_;
|
|
bool expect_throw_;
|
|
token expected_tk_;
|
|
bool consume_all_;
|
|
};
|
|
|
|
std::vector<testcase_tkz>
|
|
s_testcase_v = {
|
|
/*
|
|
*
|
|
* expect_throw consume_all
|
|
* v v
|
|
*/
|
|
{"<", false, token::leftangle(), true},
|
|
/* possible prefix of >= */
|
|
{">", false, token::rightangle(), true},
|
|
{"> ", false, token::rightangle(), false},
|
|
|
|
{"(", false, token::leftparen(), true},
|
|
{")", false, token::rightparen(), true},
|
|
|
|
{"[", false, token::leftbracket(), true},
|
|
{"]", false, token::rightbracket(), true},
|
|
|
|
{"{", false, token::leftbrace(), true},
|
|
{" {", false, token::leftbrace(), true},
|
|
|
|
{"\t{", false, token::leftbrace(), true},
|
|
{"\n{", false, token::leftbrace(), true},
|
|
{"}", false, token::rightbrace(), true},
|
|
|
|
{"0", false, token::i64_token("0"), true},
|
|
{"1", false, token::i64_token("1"), true},
|
|
{"12", false, token::i64_token("12"), true},
|
|
{"123", false, token::i64_token("123"), true},
|
|
{"1234", false, token::i64_token("1234"), true},
|
|
|
|
{"0 ", false, token::i64_token("0"), false},
|
|
{"1 ", false, token::i64_token("1"), false},
|
|
{"12 ", false, token::i64_token("12"), false},
|
|
{"123 ", false, token::i64_token("123"), false},
|
|
{"1234 ", false, token::i64_token("1234"), false},
|
|
|
|
{"1<", false, token::i64_token("1"), false},
|
|
{"1>", false, token::i64_token("1"), false},
|
|
{"1(", false, token::i64_token("1"), false},
|
|
{"1)", false, token::i64_token("1"), false},
|
|
{"1[", false, token::i64_token("1"), false},
|
|
{"1]", false, token::i64_token("1"), false},
|
|
{"1{", false, token::i64_token("1"), false},
|
|
{"1}", false, token::i64_token("1"), false},
|
|
{"1;", false, token::i64_token("1"), false},
|
|
{"1:", false, token::i64_token("1"), false},
|
|
{"1,", false, token::i64_token("1"), false},
|
|
|
|
{".1", false, token::f64_token(".1"), true},
|
|
{".12", false, token::f64_token(".12"), true},
|
|
{".123", false, token::f64_token(".123"), true},
|
|
|
|
{"+.1", false, token::f64_token("+.1"), true},
|
|
{"+.12", false, token::f64_token("+.12"), true},
|
|
{"+.123", false, token::f64_token("+.123"), true},
|
|
|
|
{"-.1", false, token::f64_token("-.1"), true},
|
|
{"-.12", false, token::f64_token("-.12"), true},
|
|
{"-.123", false, token::f64_token("-.123"), true},
|
|
|
|
{"1.", false, token::f64_token("1."), true},
|
|
{"1.2", false, token::f64_token("1.2"), true},
|
|
{"1.23", false, token::f64_token("1.23"), true},
|
|
|
|
{"1e0", false, token::f64_token("1e0"), true},
|
|
{"1e-1", false, token::f64_token("1e-1"), true},
|
|
{"1e1", false, token::f64_token("1e1"), true},
|
|
{"1e+1", false, token::f64_token("1e+1"), true},
|
|
|
|
{"\"hello\"", false, token::string_token("hello"), true},
|
|
/* tokenizer sees this input:
|
|
* "\"hi\", she said"
|
|
*/
|
|
{"\"\\\"hi\\\", she said\"", false, token::string_token("\"hi\", she said"), true},
|
|
/* tokenizer sees this input:
|
|
* "look ma, newline ->\n<- "
|
|
*/
|
|
{"\"look ma, newline ->\\n<- \"", false,
|
|
token::string_token("look ma, newline ->\n<- "), true},
|
|
/* tokenizer sees this input:
|
|
* "tab to the right [\t], to the right [\t]"
|
|
*/
|
|
{"\"tab to the right [\\t], to the right [\\t]\"", false,
|
|
token::string_token("tab to the right [\t], to the right [\t]"), true},
|
|
|
|
{".", false, token::dot(), true},
|
|
{":", false, token::colon(), true},
|
|
{",", false, token::comma(), true},
|
|
{"=", false, token::singleassign(), true},
|
|
{":=", false, token::assign_token(), true},
|
|
{"->", false, token::yields(), true},
|
|
|
|
{"+", false, token::plus_token(), true},
|
|
{"-", false, token::minus_token(), true},
|
|
{"*", false, token::star_token(), true},
|
|
{"/", false, token::slash_token(), true},
|
|
|
|
{"symbol", false, token::symbol_token("symbol"), true},
|
|
{"another-symbol", false, token::symbol_token("another-symbol"), true},
|
|
|
|
{"type", false, token::type(), true},
|
|
{"def", false, token::def(), true},
|
|
{"lambda", false, token::lambda(), true},
|
|
{"if", false, token::if_token(), true},
|
|
{"let", false, token::let(), true},
|
|
{"in", false, token::in(), true},
|
|
{"end", false, token::end(), true},
|
|
|
|
};
|
|
}
|
|
|
|
TEST_CASE("tokenizer", "[tokenizer]") {
|
|
for (std::size_t i_tc = 0, n_tc = s_testcase_v.size(); i_tc < n_tc; ++i_tc) {
|
|
|
|
const testcase_tkz & testcase = s_testcase_v[i_tc];
|
|
|
|
rehearser rh;
|
|
|
|
for (auto _ : rh) {
|
|
scope log(XO_DEBUG2(rh.enable_debug(), "tokenizer"));
|
|
|
|
log && log(xtag("i_tc", i_tc), xtag("input", testcase.input_));
|
|
|
|
using tokenizer
|
|
= xo::scm::tokenizer<char>;
|
|
|
|
tokenizer tkz(rh.enable_debug());
|
|
tokenizer::span_type
|
|
in_span(testcase.input_.c_str(),
|
|
testcase.input_.c_str() + testcase.input_.size());
|
|
|
|
auto sr = tkz.scan2(in_span, true /*eof*/);
|
|
|
|
REHEARSE(rh, sr.get_token().tk_type() == testcase.expected_tk_.tk_type());
|
|
if (sr.get_token().tk_type() == tokentype::tk_i64)
|
|
{
|
|
REHEARSE(rh, !sr.get_token().text().empty());
|
|
REHEARSE(rh, sr.get_token().i64_value() == testcase.expected_tk_.i64_value());
|
|
} else if (sr.get_token().tk_type() == tokentype::tk_f64)
|
|
{
|
|
REHEARSE(rh, !sr.get_token().text().empty());
|
|
REHEARSE(rh, sr.get_token().f64_value() == testcase.expected_tk_.f64_value());
|
|
} else if(sr.get_token().tk_type() == tokentype::tk_string)
|
|
{
|
|
/* sr.get_token().text() can be empty, consider input "" */
|
|
REHEARSE(rh, sr.get_token().text() == testcase.expected_tk_.text());
|
|
} else if(sr.get_token().tk_type() == tokentype::tk_symbol)
|
|
{
|
|
REHEARSE(rh, !sr.get_token().text().empty());
|
|
REHEARSE(rh, sr.get_token().text() == testcase.expected_tk_.text());
|
|
} else {
|
|
REHEARSE(rh, sr.get_token().text().empty());
|
|
}
|
|
|
|
/* must consume all input for tests we're doing here */
|
|
if (testcase.consume_all_) {
|
|
REHEARSE(rh, sr.consumed() == in_span);
|
|
} else {
|
|
REHEARSE(rh, sr.consumed() != in_span);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
namespace {
|
|
struct testcase2_tkz {
|
|
std::string input_;
|
|
bool expect_throw_;
|
|
std::vector<token> expected_tk_v_;
|
|
};
|
|
|
|
std::vector<testcase2_tkz>
|
|
s_testcase2_v = {
|
|
{"def foo : f64 = 3.141;",
|
|
false,
|
|
{token::def(),
|
|
token::symbol_token("foo"),
|
|
token::colon(),
|
|
token::symbol_token("f64"),
|
|
token::singleassign(),
|
|
token::f64_token("3.141"),
|
|
token::semicolon()
|
|
}},
|
|
{"def foo = lambda (x : f64) { def y = x * x; y; }",
|
|
false,
|
|
{token::def(),
|
|
token::symbol_token("foo"),
|
|
token::singleassign(),
|
|
token::lambda(),
|
|
token::leftparen(),
|
|
token::symbol_token("x"),
|
|
token::colon(),
|
|
token::symbol_token("f64"),
|
|
token::rightparen(),
|
|
token::leftbrace(),
|
|
token::def(),
|
|
token::symbol_token("y"),
|
|
token::singleassign(),
|
|
token::symbol_token("x"),
|
|
token::star_token(),
|
|
token::symbol_token("x"),
|
|
token::semicolon(),
|
|
token::symbol_token("y"),
|
|
token::semicolon(),
|
|
token::rightbrace()
|
|
}},
|
|
{"a.b",
|
|
false,
|
|
{token::symbol_token("a"),
|
|
token::dot(),
|
|
token::symbol_token("b")
|
|
}},
|
|
{"a,b",
|
|
false,
|
|
{token::symbol_token("a"),
|
|
token::comma(),
|
|
token::symbol_token("b")
|
|
}},
|
|
{"a:b",
|
|
false,
|
|
{token::symbol_token("a"),
|
|
token::colon(),
|
|
token::symbol_token("b")
|
|
}},
|
|
{"a;b",
|
|
false,
|
|
{token::symbol_token("a"),
|
|
token::semicolon(),
|
|
token::symbol_token("b")
|
|
}},
|
|
{"a:=b",
|
|
false,
|
|
{token::symbol_token("a"),
|
|
token::assign_token(),
|
|
token::symbol_token("b")
|
|
}},
|
|
{"a=b",
|
|
false,
|
|
{token::symbol_token("a"),
|
|
token::singleassign(),
|
|
token::symbol_token("b")
|
|
}},
|
|
{"p->q",
|
|
false,
|
|
{token::symbol_token("p"),
|
|
token::yields(),
|
|
token::symbol_token("q")
|
|
}},
|
|
{"a + b",
|
|
false,
|
|
{token::symbol_token("a"),
|
|
token::plus_token(),
|
|
token::symbol_token("b")
|
|
}},
|
|
{"a - b",
|
|
false,
|
|
{token::symbol_token("a"),
|
|
token::minus_token(),
|
|
token::symbol_token("b")
|
|
}},
|
|
{"a-b",
|
|
false,
|
|
{token::symbol_token("a-b"),
|
|
}},
|
|
{"(apple)",
|
|
false,
|
|
{token::leftparen(),
|
|
token::symbol_token("apple"),
|
|
token::rightparen()
|
|
}},
|
|
{"<apple>",
|
|
false,
|
|
{token::leftangle(),
|
|
token::symbol_token("apple"),
|
|
token::rightangle()
|
|
}},
|
|
};
|
|
}
|
|
|
|
TEST_CASE("tokenizer2", "[tokenizer]") {
|
|
/* this time testing token sequences */
|
|
|
|
using tokenizer = xo::scm::tokenizer<char>;
|
|
|
|
for (std::size_t i_tc = 0, n_tc = s_testcase2_v.size(); i_tc < n_tc; ++i_tc) {
|
|
const testcase2_tkz & testcase = s_testcase2_v[i_tc];
|
|
|
|
rehearser rh;
|
|
|
|
for (auto _ : rh) {
|
|
scope log(XO_DEBUG2(rh.enable_debug(), "tokenizer2"));
|
|
|
|
log && log(xtag("i_tc", i_tc), xtag("input", testcase.input_));
|
|
|
|
tokenizer tkz(rh.enable_debug());
|
|
|
|
tokenizer::span_type
|
|
in_span(testcase.input_.c_str(),
|
|
testcase.input_.c_str() + testcase.input_.size());
|
|
|
|
for (int i_tk = 0, n_tk = testcase.expected_tk_v_.size();
|
|
i_tk < n_tk; ++i_tk)
|
|
{
|
|
log && log(xtag("i_tk", i_tk));
|
|
|
|
auto sr = tkz.scan2(in_span, in_span.empty());
|
|
const auto & tk = sr.get_token();
|
|
|
|
if (tk.is_valid()) {
|
|
REHEARSE(rh, tk.tk_type() == testcase.expected_tk_v_[i_tk].tk_type());
|
|
}
|
|
if (tk.tk_type() == tokentype::tk_i64)
|
|
{
|
|
REHEARSE(rh, !tk.text().empty());
|
|
REHEARSE(rh, tk.i64_value() == testcase.expected_tk_v_[i_tk].i64_value());
|
|
} else if (tk.tk_type() == tokentype::tk_f64)
|
|
{
|
|
REHEARSE(rh, !tk.text().empty());
|
|
REHEARSE(rh, tk.f64_value() == testcase.expected_tk_v_[i_tk].f64_value());
|
|
} else if(tk.tk_type() == tokentype::tk_string)
|
|
{
|
|
/* tk.text() can be empty, consider input "" */
|
|
REHEARSE(rh, tk.text() == testcase.expected_tk_v_[i_tk].text());
|
|
} else if(tk.tk_type() == tokentype::tk_symbol)
|
|
{
|
|
REHEARSE(rh, !tk.text().empty());
|
|
REHEARSE(rh, tk.text() == testcase.expected_tk_v_[i_tk].text());
|
|
} else {
|
|
REHEARSE(rh, tk.text().empty());
|
|
}
|
|
|
|
in_span = in_span.after_prefix(sr.consumed());
|
|
}
|
|
}
|
|
}
|
|
} /*TEST_CASE(tokenizer2)*/
|
|
|
|
} /*namespace ut*/
|
|
} /*namespace xo*/
|
|
|
|
/* end tokenizer.test.cpp */
|