fvm/tests/test_as_parser.c

#include <stdio.h>
#include <string.h> 
#include <assert.h>

#include "as_tokenizer.h"
#include "as_parser.h"
#include "utils.h"

char *input_buffer = 
    "start:\n"
    "    add 1\n"
    "    sub start\n"
    "    div\n"
    "end:    eq\n";

int main(int argc, char** argv) {
    struct result result;
    printf("[TEST] assembler parser\n");
    // make a memory buffer to FILE*
    FILE *fp = fmemopen(input_buffer, strlen(input_buffer), "r");
    struct allocator * alct = new_allocator();
    struct token_stream * ts = new_token_stream(alct, fp);
    result = parse_prog(alct, ts);
    if (result.errmsg != NULL) {
        printf("error: %s\n", result.errmsg);
    }
    assert(result.errmsg == NULL);
    struct prog* prog = result.value;
    
    // compare output
    struct stmt * * stmts = prog->stmts->stmts;

    assert(stmts[0]->instr == NULL);
    assert(strcmp("start", stmts[0]->label->name) == 0);

    assert(stmts[1]->label == NULL);
    assert(stmts[1]->instr->op == OP_ADD);
    assert(stmts[1]->instr->arg->ival == 1);

    assert(strcmp("end", stmts[4]->label->name) == 0);
    assert(stmts[4]->instr->op == OP_EQ);

    printf("[PASS] assembler parser\n");
    fclose(fp);
    delete_allocator(alct);
    return 0;
}