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#include "../core/tokenizer.h"
#include "greatest.h"
#include <string.h>
#define STR(x) _STR(x)
#define _STR(x) #x
#define CREATE_TOKENIZER(src) sand_create_tokenizer(src, strlen(src), "<dummy file at " __FILE__ ":" STR(__LINE__) ">")
TEST empty_source_gives_eof(void) {
SandTokenizer tokenizer = CREATE_TOKENIZER("");
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_EOF);
// It should still be the case for subsequent calls.
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_EOF);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_EOF);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_EOF);
PASS();
}
TEST single_char_tokens(void) {
SandTokenizer tokenizer = CREATE_TOKENIZER("( ) { } , . - + ; / *");
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_LEFT_PAREN);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_RIGHT_PAREN);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_LEFT_BRACE);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_RIGHT_BRACE);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_COMMA);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_DOT);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_MINUS);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_PLUS);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_SEMICOLON);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_SLASH);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_STAR);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_EOF);
PASS();
}
TEST one_or_two_char_tokens(void) {
SandTokenizer tokenizer = CREATE_TOKENIZER("! != = == > >= < <=");
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_BANG);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_BANG_EQUAL);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_EQUAL);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_EQUAL_EQUAL);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_GREATER);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_GREATER_EQUAL);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_LESS);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_LESS_EQUAL);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_EOF);
PASS();
}
TEST comments_are_ignored(void) {
SandTokenizer tokenizer = CREATE_TOKENIZER(".// This is a comment\n.");
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_DOT);
// No comment node here!
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_DOT);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_EOF);
PASS();
}
TEST literal_string(void) {
SandTokenizer tokenizer = CREATE_TOKENIZER("\"abc\\\"def\\nghi\"");
SandToken token = sand_get_next_token(&tokenizer);
ASSERT_EQ(token.kind, SAND_TOKEN_STRING);
ASSERT_EQ(token.content_length, 15);
ASSERT_STRN_EQ(token.content, "\"abc\\\"def\\nghi\"", token.content_length);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_EOF);
PASS();
}
TEST unfinished_literal_string_eof(void) {
SandTokenizer tokenizer = CREATE_TOKENIZER("\"abc");
SandToken token = sand_get_next_token(&tokenizer);
ASSERT_EQ(token.kind, SAND_TOKEN_ERROR);
ASSERT_STR_EQ(token.content, "Unexpected end-of-file inside string literal");
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_EOF);
PASS();
}
TEST unfinished_literal_string_eol(void) {
SandTokenizer tokenizer = CREATE_TOKENIZER("\"abc\n!");
SandToken token = sand_get_next_token(&tokenizer);
ASSERT_EQ(token.kind, SAND_TOKEN_ERROR);
ASSERT_STR_EQ(token.content, "Unexpected end-of-line inside string literal");
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_BANG);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_EOF);
PASS();
}
TEST unfinished_literal_string_escape_eol(void) {
SandTokenizer tokenizer = CREATE_TOKENIZER("\"\\\n!");
SandToken token = sand_get_next_token(&tokenizer);
ASSERT_EQ(token.kind, SAND_TOKEN_ERROR);
ASSERT_STR_EQ(token.content, "Unfinished escape inside string literal");
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_BANG);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_EOF);
PASS();
}
TEST unfinished_literal_string_escape_eof(void) {
SandTokenizer tokenizer = CREATE_TOKENIZER("\"\\");
SandToken token = sand_get_next_token(&tokenizer);
ASSERT_EQ(token.kind, SAND_TOKEN_ERROR);
ASSERT_STR_EQ(token.content, "Unfinished escape inside string literal");
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_EOF);
PASS();
}
TEST literal_number(void) {
SandTokenizer tokenizer = CREATE_TOKENIZER("123");
SandToken token = sand_get_next_token(&tokenizer);
ASSERT_EQ(token.kind, SAND_TOKEN_NUMBER);
ASSERT_EQ(token.content_length, 3);
ASSERT_STRN_EQ(token.content, "123", token.content_length);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_EOF);
PASS();
}
TEST fractional_literal_number(void) {
SandTokenizer tokenizer = CREATE_TOKENIZER("123.00000001");
SandToken token = sand_get_next_token(&tokenizer);
ASSERT_EQ(token.kind, SAND_TOKEN_NUMBER);
ASSERT_EQ(token.content_length, 12);
ASSERT_STRN_EQ(token.content, "123.00000001", token.content_length);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_EOF);
PASS();
}
TEST literal_number_followed_by_dot(void) {
SandTokenizer tokenizer = CREATE_TOKENIZER("123.");
SandToken token = sand_get_next_token(&tokenizer);
ASSERT_EQ(token.kind, SAND_TOKEN_NUMBER);
ASSERT_EQ(token.content_length, 3);
ASSERT_STRN_EQ(token.content, "123", token.content_length);
ASSERT_EQm("Dot should not have been consumed", sand_get_next_token(&tokenizer).kind, SAND_TOKEN_DOT);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_EOF);
PASS();
}
TEST identifiers(void) {
SandTokenizer tokenizer = CREATE_TOKENIZER("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012456789");
SandToken token = sand_get_next_token(&tokenizer);
ASSERT_EQ(token.kind, SAND_TOKEN_IDENTIFIER);
ASSERT_EQ(token.content_length, 61);
ASSERT_MEM_EQ(token.content, "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ012456789", token.content_length);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_EOF);
PASS();
}
TEST identifiers_cannot_start_with_number(void) {
SandTokenizer tokenizer = CREATE_TOKENIZER("123abc");
SandToken token = sand_get_next_token(&tokenizer);
ASSERT_EQ(token.kind, SAND_TOKEN_NUMBER);
ASSERT_EQ(token.content_length, 3);
ASSERT_MEM_EQ(token.content, "123", token.content_length);
token = sand_get_next_token(&tokenizer);
ASSERT_EQ(token.kind, SAND_TOKEN_IDENTIFIER);
ASSERT_EQ(token.content_length, 3);
ASSERT_MEM_EQ(token.content, "abc", token.content_length);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_EOF);
PASS();
}
TEST keywords(void) {
SandTokenizer tokenizer = CREATE_TOKENIZER("and else false for fun "
"if nil or print return "
"true var while ");
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_AND);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_ELSE);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_FALSE);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_FOR);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_FUN);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_IF);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_NIL);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_OR);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_PRINT);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_RETURN);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_TRUE);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_VAR);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_WHILE);
ASSERT_EQ(sand_get_next_token(&tokenizer).kind, SAND_TOKEN_EOF);
PASS();
}
SUITE(tokenizer) {
RUN_TEST(empty_source_gives_eof);
RUN_TEST(single_char_tokens);
RUN_TEST(one_or_two_char_tokens);
RUN_TEST(comments_are_ignored);
RUN_TEST(literal_string);
RUN_TEST(unfinished_literal_string_eof);
RUN_TEST(unfinished_literal_string_eol);
RUN_TEST(unfinished_literal_string_escape_eol);
RUN_TEST(unfinished_literal_string_escape_eof);
RUN_TEST(literal_number);
RUN_TEST(fractional_literal_number);
RUN_TEST(literal_number_followed_by_dot);
RUN_TEST(identifiers);
RUN_TEST(identifiers_cannot_start_with_number);
RUN_TEST(keywords);
}
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