160 lines
6.4 KiB
C++
160 lines
6.4 KiB
C++
/* file tokenizer.test.cpp
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*
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* author: Roland Conybeare
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*/
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#include "xo/tokenizer/tokenizer.hpp"
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#include <catch2/catch.hpp>
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namespace xo {
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using xo::scm::tokentype;
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using token = xo::scm::token<char>;
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using xo::scm::span;
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namespace ut {
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namespace {
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struct testcase_tkz {
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std::string input_;
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bool expect_throw_;
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token expected_tk_;
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bool consume_all_;
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};
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std::vector<testcase_tkz>
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s_testcase_v = {
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{"<", false, token::leftangle(), true},
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{">", false, token::rightangle(), true},
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{"(", false, token::leftparen(), true},
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{")", false, token::rightparen(), true},
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{"[", false, token::leftbracket(), true},
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{"]", false, token::rightbracket(), true},
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{"{", false, token::leftbrace(), true},
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{" {", false, token::leftbrace(), true},
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{"\t{", false, token::leftbrace(), true},
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{"\n{", false, token::leftbrace(), true},
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{"}", false, token::rightbrace(), true},
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{"0", false, token::i64_token("0"), true},
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{"1", false, token::i64_token("1"), true},
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{"12", false, token::i64_token("12"), true},
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{"123", false, token::i64_token("123"), true},
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{"1234", false, token::i64_token("1234"), true},
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{"0 ", false, token::i64_token("0"), false},
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{"1 ", false, token::i64_token("1"), false},
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{"12 ", false, token::i64_token("12"), false},
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{"123 ", false, token::i64_token("123"), false},
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{"1234 ", false, token::i64_token("1234"), false},
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{"1<", false, token::i64_token("1"), false},
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{"1>", false, token::i64_token("1"), false},
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{"1(", false, token::i64_token("1"), false},
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{"1)", false, token::i64_token("1"), false},
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{"1[", false, token::i64_token("1"), false},
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{"1]", false, token::i64_token("1"), false},
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{"1{", false, token::i64_token("1"), false},
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{"1}", false, token::i64_token("1"), false},
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{"1;", false, token::i64_token("1"), false},
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{"1:", false, token::i64_token("1"), false},
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{"1,", false, token::i64_token("1"), false},
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{".1", false, token::f64_token(".1"), true},
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{".12", false, token::f64_token(".12"), true},
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{".123", false, token::f64_token(".123"), true},
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{"+.1", false, token::f64_token("+.1"), true},
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{"+.12", false, token::f64_token("+.12"), true},
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{"+.123", false, token::f64_token("+.123"), true},
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{"-.1", false, token::f64_token("-.1"), true},
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{"-.12", false, token::f64_token("-.12"), true},
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{"-.123", false, token::f64_token("-.123"), true},
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{"1.", false, token::f64_token("1."), true},
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{"1.2", false, token::f64_token("1.2"), true},
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{"1.23", false, token::f64_token("1.23"), true},
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{"1e0", false, token::f64_token("1e0"), true},
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{"1e-1", false, token::f64_token("1e-1"), true},
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{"1e1", false, token::f64_token("1e1"), true},
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{"1e+1", false, token::f64_token("1e+1"), true},
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{"\"hello\"", false, token::string_token("hello"), true},
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/* tokenizer sees this input:
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* "\"hi\", she said"
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*/
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{"\"\\\"hi\\\", she said\"", false, token::string_token("\"hi\", she said"), true},
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/* tokenizer sees this input:
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* "look ma, newline ->\n<- "
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*/
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{"\"look ma, newline ->\\n<- \"", false,
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token::string_token("look ma, newline ->\n<- "), true},
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/* tokenizer sees this input:
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* "tab to the right [\t], to the right [\t]"
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*/
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{"\"tab to the right [\\t], to the right [\\t]\"", false,
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token::string_token("tab to the right [\t], to the right [\t]"), true},
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{"symbol", false, token::symbol_token("symbol"), true},
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};
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}
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TEST_CASE("tokenizer", "[tokenizer]") {
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for (std::size_t i_tc = 0, n_tc = s_testcase_v.size(); i_tc < n_tc; ++i_tc) {
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const testcase_tkz & testcase = s_testcase_v[i_tc];
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INFO(xtag("input", testcase.input_));
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INFO(xtag("i_tc", i_tc));
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using tokenizer
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= xo::scm::tokenizer<char>;
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tokenizer tkz;
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tokenizer::span_type
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in_span(testcase.input_.c_str(),
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testcase.input_.c_str() + testcase.input_.size());
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auto out = tkz.scan(in_span);
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auto tk = out.first;
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if (tk.is_invalid())
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tk = tkz.notify_eof();
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REQUIRE(tk.tk_type() == testcase.expected_tk_.tk_type());
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if (tk.tk_type() == tokentype::tk_i64)
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{
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REQUIRE(!tk.text().empty());
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REQUIRE(tk.i64_value() == testcase.expected_tk_.i64_value());
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} else if (tk.tk_type() == tokentype::tk_f64)
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{
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REQUIRE(!tk.text().empty());
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REQUIRE(tk.f64_value() == testcase.expected_tk_.f64_value());
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} else if(tk.tk_type() == tokentype::tk_string)
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{
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/* tk.text() can be empty, consider input "" */
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REQUIRE(tk.text() == testcase.expected_tk_.text());
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} else if(tk.tk_type() == tokentype::tk_symbol)
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{
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REQUIRE(!tk.text().empty());
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REQUIRE(tk.text() == testcase.expected_tk_.text());
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} else {
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REQUIRE(tk.text().empty());
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}
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/* must consume all input for tests we're doing here */
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if (testcase.consume_all_)
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REQUIRE(out.second == in_span);
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else
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REQUIRE(out.second != in_span);
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}
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}
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} /*namespace ut*/
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} /*namespace xo*/
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/* end tokenizer.test.cpp */
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