karma/interpreter-cpp
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

added test for full lexer (missing impl)

Browse Source
This commit is contained in:
Karma Riuk
2025-06-29 20:28:53 +02:00
parent c322b69590
commit 69217fdf90
1 changed files with 68 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

69
test/lexer.cpp
View File

@ -6,7 +6,7 @@
#include <sstream>
#include <string>
TEST_CASE("next token") {
TEST_CASE("Single character token") {
struct test {
token::type expectedType;
std::string expectedLiteral;
@ -35,3 +35,70 @@ TEST_CASE("next token") {
CHECK(tok.literal == t.expectedLiteral);
}
};
TEST_CASE("Full tokens") {
struct test {
token::type expectedType;
std::string expectedLiteral;
};
std::istringstream ss("let five = 5;\
let ten = 10;\
let add = fn(x, y) {\
x + y;\
};\
let result = add(five, ten);\
");
lexer::lexer l{ss};
test tests[] = {
// clang-format off
{token::type::LET, "let"},
{token::type::IDENTIFIER, "five"},
{token::type::ASSIGN, "="},
{token::type::INT, "5"},
{token::type::SEMICOLON, ";"},
{token::type::LET, "let"},
{token::type::IDENTIFIER, "ten"},
{token::type::ASSIGN, "="},
{token::type::INT, "10"},
{token::type::SEMICOLON, ";"},
{token::type::LET, "let"},
{token::type::IDENTIFIER, "add"},
{token::type::ASSIGN, "="},
{token::type::FUNCTION, "fn"},
{token::type::LPAREN, "("},
{token::type::IDENTIFIER, "x"},
{token::type::COMMA, ","},
{token::type::IDENTIFIER, "y"},
{token::type::RPAREN, ")"},
{token::type::LBRACE, "{"},
{token::type::IDENTIFIER, "x"},
{token::type::PLUS, "+"},
{token::type::IDENTIFIER, "y"},
{token::type::SEMICOLON, ";"},
{token::type::RBRACE, "}"},
{token::type::SEMICOLON, ";"},
{token::type::LET, "let"},
{token::type::IDENTIFIER, "result"},
{token::type::ASSIGN, "="},
{token::type::IDENTIFIER, "add"},
{token::type::LPAREN, "("},
{token::type::IDENTIFIER, "five"},
{token::type::COMMA, ","},
{token::type::IDENTIFIER, "ten"},
{token::type::RPAREN, ")"},
{token::type::SEMICOLON, ";"},
// clang-format on
};
for (const auto& t : tests) {
token::token tok = l.next_token();
CHECK(tok.type == t.expectedType);
CHECK(tok.literal == t.expectedLiteral);
}
};