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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2022 Olaf Wintermann. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   1. Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *
 *   2. Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include "object.h"

#include "../util/object.h"

#include <cx/linked_list.h>
#include <cx/compare.h>

#include "object.h"


UCX_TEST(test_expr_parse_expr_value) {
    pool_handle_t *pool = pool_create();
    
    CxList *tokens = cxLinkedListCreate(pool_allocator(pool), cx_cmp_ptr, sizeof(cxstring));
    cxstring token = cx_str("123");
    cxListAdd(tokens, &token);
    
    UCX_TEST_BEGIN;
    
    size_t pos = 0;
    NSAPIExpression *expr = expr_parse_logical_expr(pool, tokens, &pos);
    
    UCX_TEST_ASSERT(pos == 1, "wrong token pos");
    UCX_TEST_ASSERT(expr, "expression is null");
    UCX_TEST_ASSERT(expr->type == NSAPI_EXPRESSION_INT, "wrong type");
    
    UCX_TEST_END;
    
    pool_destroy(pool);
}

UCX_TEST(test_expr_parse_expr_neg_value) {
    pool_handle_t *pool = pool_create();
    
    CxList *tokens = cxLinkedListCreate(pool_allocator(pool), cx_cmp_ptr, sizeof(cxstring));
    cxstring token = cx_str("-123");
    cxListAdd(tokens, &token);
    
    UCX_TEST_BEGIN;
    
    size_t pos = 0;
    NSAPIExpression *expr = expr_parse_logical_expr(pool, tokens, &pos);
    
    UCX_TEST_ASSERT(pos == 1, "wrong token pos");
    UCX_TEST_ASSERT(expr, "expression is null");
    UCX_TEST_ASSERT(expr->type == NSAPI_EXPRESSION_INT, "wrong type");
    UCX_TEST_ASSERT(expr->value.i == -123, "wrong value");
    
    UCX_TEST_END;
    
    pool_destroy(pool);
}

UCX_TEST(test_expr_parse_expr_value_str) {
    pool_handle_t *pool = pool_create();
    
    CxList *tokens = cxLinkedListCreate(pool_allocator(pool), cx_cmp_ptr, sizeof(cxstring));
    cxstring token = cx_str("\"hello world\"");
    cxListAdd(tokens, &token);
    
    UCX_TEST_BEGIN;
    
    size_t pos = 0;
    NSAPIExpression *expr = expr_parse_logical_expr(pool, tokens, &pos);
    
    UCX_TEST_ASSERT(pos == 1, "wrong token pos");
    UCX_TEST_ASSERT(expr, "expression is null");
    UCX_TEST_ASSERT(expr->type == NSAPI_EXPRESSION_STRING, "wrong type");
    UCX_TEST_ASSERT(!cx_strcmp(expr->value.str, cx_str("hello world")), "wrong value");
    
    UCX_TEST_END;
    
    pool_destroy(pool);
}

UCX_TEST(test_expr_parse_expr_value_bool) {
    pool_handle_t *pool = pool_create();
    
    CxList *tokens = cxLinkedListCreate(pool_allocator(pool), cx_cmp_ptr, sizeof(cxstring));
    cxstring token = cx_str("true");
    cxListAdd(tokens, &token);
    
    UCX_TEST_BEGIN;
    
    size_t pos = 0;
    NSAPIExpression *expr = expr_parse_logical_expr(pool, tokens, &pos);
    
    UCX_TEST_ASSERT(pos == 1, "wrong token pos");
    UCX_TEST_ASSERT(expr, "expression is null");
    UCX_TEST_ASSERT(expr->type == NSAPI_EXPRESSION_BOOL, "wrong type");
    UCX_TEST_ASSERT(expr->value.b == 1, "wrong value");
    
    UCX_TEST_END;
    
    pool_destroy(pool);
}

UCX_TEST(test_expr_parse_expr_value_var) {
    pool_handle_t *pool = pool_create();
    
    CxList *tokens = cxLinkedListCreate(pool_allocator(pool), cx_cmp_ptr, sizeof(cxstring));
    cxstring token = cx_str("$test");
    cxListAdd(tokens, &token);
    
    UCX_TEST_BEGIN;
    
    size_t pos = 0;
    NSAPIExpression *expr = expr_parse_logical_expr(pool, tokens, &pos);
    
    UCX_TEST_ASSERT(pos == 1, "wrong token pos");
    UCX_TEST_ASSERT(expr, "expression is null");
    UCX_TEST_ASSERT(expr->type == NSAPI_EXPRESSION_VARIABLE, "wrong type");
    UCX_TEST_ASSERT(!cx_strcmp(expr->value.var, cx_str("test")), "wrong var name");
    
    UCX_TEST_END;
    
    pool_destroy(pool);
}

UCX_TEST(test_expr_parse_expr_not_value) {
    pool_handle_t *pool = pool_create();
    
    CxList *tokens = cxLinkedListCreate(pool_allocator(pool), cx_cmp_ptr, sizeof(cxstring));
    cxstring token = cx_str("not");
    cxListAdd(tokens, &token);
    token = cx_str("true");
    cxListAdd(tokens, &token);
    
    UCX_TEST_BEGIN;
    
    size_t pos = 0;
    NSAPIExpression *expr = expr_parse_logical_expr(pool, tokens, &pos);
    
    UCX_TEST_ASSERT(pos == 2, "wrong token pos");
    UCX_TEST_ASSERT(expr, "expression is null");
    
    UCX_TEST_ASSERT(expr->type == NSAPI_EXPRESSION_UNARY, "wrong root expression type");
    UCX_TEST_ASSERT(expr->left, "missing left expression");
    UCX_TEST_ASSERT(!expr->right, "right expression should be null");
    UCX_TEST_ASSERT(expr->left->type == NSAPI_EXPRESSION_BOOL, "left expression has wrong type");
    UCX_TEST_ASSERT(expr->left->value.b == 1, "left expression has wrong value");
    
    UCX_TEST_END;
    
    pool_destroy(pool);
}

UCX_TEST(test_expr_parse_expr_sign_value) {
    pool_handle_t *pool = pool_create();
    
    CxList *tokens1 = cxLinkedListCreate(pool_allocator(pool), cx_cmp_ptr, sizeof(cxstring));
    cxstring token = cx_str("+");
    cxListAdd(tokens1, &token);
    token = cx_str("123");
    cxListAdd(tokens1, &token);
    
    CxList *tokens2 = cxLinkedListCreate(pool_allocator(pool), cx_cmp_ptr, sizeof(cxstring));
    token = cx_str("-");
    cxListAdd(tokens2, &token);
    token = cx_str("123");
    cxListAdd(tokens2, &token);
    
    UCX_TEST_BEGIN;
    
    size_t pos = 0;
    NSAPIExpression *expr = expr_parse_logical_expr(pool, tokens1, &pos);
    
    UCX_TEST_ASSERT(pos == 2, "test1: wrong token pos");
    UCX_TEST_ASSERT(expr, "test1: expression is null");
    
    pos = 0;
    expr = expr_parse_logical_expr(pool, tokens2, &pos);
    
    UCX_TEST_ASSERT(pos == 2, "test2: wrong token pos");
    UCX_TEST_ASSERT(expr, "test2: expression is null");
    
    UCX_TEST_ASSERT(expr->type == NSAPI_EXPRESSION_UNARY, "wrong expression type");
    UCX_TEST_ASSERT(expr->operator == NSAPI_EXPRESSION_SUB, "wrong expression operator");
    UCX_TEST_ASSERT(expr->left, "missing left expresion");
    UCX_TEST_ASSERT(expr->left->type == NSAPI_EXPRESSION_INT, "left expression has wrong type");
    UCX_TEST_ASSERT(expr->left->value.i == 123, "left expression has wrong value");
    
    UCX_TEST_END;
    
    pool_destroy(pool);
}



UCX_TEST(test_expr_parse_expr_compare2values) {
    pool_handle_t *pool = pool_create();
    
    CxList *tokens = cxLinkedListCreate(pool_allocator(pool), cx_cmp_ptr, sizeof(cxstring));
    cxstring token = cx_str("2");
    cxListAdd(tokens, &token);
    token = cx_str("==");
    cxListAdd(tokens, &token);
    token = cx_str("2");
    cxListAdd(tokens, &token);
    
    UCX_TEST_BEGIN;
    
    size_t pos = 0;
    NSAPIExpression *expr = expr_parse_logical_expr(pool, tokens, &pos);
    
    UCX_TEST_ASSERT(pos == 3, "wrong token pos");
    UCX_TEST_ASSERT(expr, "expression is null");
    
    UCX_TEST_ASSERT(expr->type == NSAPI_EXPRESSION_BINARY, "wrong expression type");
    UCX_TEST_ASSERT(expr->left, "left expression is null");
    UCX_TEST_ASSERT(expr->right, "right expression is null");
    
    UCX_TEST_ASSERT(expr->left->operator == NSAPI_EXPRESSION_NOOP, "left should be a literal with no operator");
    UCX_TEST_ASSERT(expr->right->operator == NSAPI_EXPRESSION_NOOP, "right should be a literal with no operator");
    
    UCX_TEST_END;
    
    pool_destroy(pool);
}

UCX_TEST(test_expr_parse_expr_compare2value_expr) {
    pool_handle_t *pool = pool_create();
    
    CxList *tokens = cxLinkedListCreate(pool_allocator(pool), cx_cmp_ptr, sizeof(cxstring));
    cxstring token = cx_str("2");
    cxListAdd(tokens, &token);
    token = cx_str("==");
    cxListAdd(tokens, &token);
    token = cx_str("1");
    cxListAdd(tokens, &token);
    token = cx_str("+");
    cxListAdd(tokens, &token);
    token = cx_str("1");
    cxListAdd(tokens, &token);
    
    UCX_TEST_BEGIN;
    
    size_t pos = 0;
    NSAPIExpression *expr = expr_parse_logical_expr(pool, tokens, &pos);
    
    UCX_TEST_ASSERT(pos == 5, "wrong token pos");
    UCX_TEST_ASSERT(expr, "expression is null");
    
    UCX_TEST_ASSERT(expr->type == NSAPI_EXPRESSION_BINARY, "wrong expression type");
    UCX_TEST_ASSERT(expr->left, "left expression is null");
    UCX_TEST_ASSERT(expr->right, "right expression is null");
    
    UCX_TEST_ASSERT(expr->left->operator == NSAPI_EXPRESSION_NOOP, "left should be a literal with no operator");
    UCX_TEST_ASSERT(expr->right->operator == NSAPI_EXPRESSION_ADD, "right should be a binary expression");
    
    UCX_TEST_END;
    
    pool_destroy(pool);
}

UCX_TEST(test_expr_parse_expr_compare2expr_value) {
    pool_handle_t *pool = pool_create();
    
    CxList *tokens = cxLinkedListCreate(pool_allocator(pool), cx_cmp_ptr, sizeof(cxstring));
    cxstring token = cx_str("1");
    cxListAdd(tokens, &token);
    token = cx_str("+");
    cxListAdd(tokens, &token);
    token = cx_str("1");
    cxListAdd(tokens, &token);
    token = cx_str("==");
    cxListAdd(tokens, &token);
    token = cx_str("2");
    cxListAdd(tokens, &token);
    
    UCX_TEST_BEGIN;
    
    size_t pos = 0;
    NSAPIExpression *expr = expr_parse_logical_expr(pool, tokens, &pos);
    
    UCX_TEST_ASSERT(pos == 5, "wrong token pos");
    UCX_TEST_ASSERT(expr, "expression is null");
    
    UCX_TEST_ASSERT(expr->type == NSAPI_EXPRESSION_BINARY, "wrong expression type");
    UCX_TEST_ASSERT(expr->left, "left expression is null");
    UCX_TEST_ASSERT(expr->right, "right expression is null");
    UCX_TEST_ASSERT(expr->right->value.i == 2, "right wrong value");
    
    UCX_TEST_ASSERT(expr->left->operator == NSAPI_EXPRESSION_ADD, "left should be a binary operation");
    UCX_TEST_ASSERT(expr->right->operator == NSAPI_EXPRESSION_NOOP, "right should be NOOP");
    UCX_TEST_ASSERT(expr->left->left, "ADD-op missing left");
    UCX_TEST_ASSERT(expr->left->right, "ADD-op missing right");
    UCX_TEST_ASSERT(expr->left->left->value.i == 1, "ADD-op: wrong left value");
    UCX_TEST_ASSERT(expr->left->right->value.i == 1, "ADD-op: wrong right value");
    
    UCX_TEST_END;
    
    pool_destroy(pool);
}

UCX_TEST(test_expr_parse_expr_bracket) {
    pool_handle_t *pool = pool_create();
    
    // expression: 2 * (1 + 2) == 6
    CxList *tokens = cxLinkedListCreate(pool_allocator(pool), cx_cmp_ptr, sizeof(cxstring));
    cxstring token = cx_str("2");
    cxListAdd(tokens, &token);
    token = cx_str("*");
    cxListAdd(tokens, &token);
    token = cx_str("(");
    cxListAdd(tokens, &token);
    token = cx_str("1");
    cxListAdd(tokens, &token);
    token = cx_str("+");
    cxListAdd(tokens, &token);
    token = cx_str("2");
    cxListAdd(tokens, &token);
    token = cx_str(")");
    cxListAdd(tokens, &token);
    token = cx_str("==");
    cxListAdd(tokens, &token);
    token = cx_str("6");
    cxListAdd(tokens, &token);
    
    UCX_TEST_BEGIN;
    
    size_t pos = 0;
    NSAPIExpression *expr = expr_parse_logical_expr(pool, tokens, &pos);
    
    UCX_TEST_ASSERT(pos == 9, "wrong token pos");
    UCX_TEST_ASSERT(expr, "expression is null");
    UCX_TEST_ASSERT(expr->operator == NSAPI_EXPRESSION_EQ, "root: wrong operator");
    UCX_TEST_ASSERT(expr->left, "missing left expression");
    UCX_TEST_ASSERT(expr->right, "missing right expression");
    UCX_TEST_ASSERT(expr->right->type == NSAPI_EXPRESSION_INT, "right expression has wrong type");
    UCX_TEST_ASSERT(expr->left->operator == NSAPI_EXPRESSION_MUL, "left expression has wrong operator");
    UCX_TEST_ASSERT(expr->left->left, "mul: missing left");
    UCX_TEST_ASSERT(expr->left->right, "mul: missing right");
    UCX_TEST_ASSERT(expr->left->right->operator == NSAPI_EXPRESSION_ADD, "missing add operator");
    UCX_TEST_ASSERT(expr->left->right->left, "add: missing left");
    UCX_TEST_ASSERT(expr->left->right->left, "add: missing right");
    
    UCX_TEST_END;
    
    pool_destroy(pool);
}

UCX_TEST(test_expr_op_defined_simple) {
    pool_handle_t *pool = pool_create();
    
    CxList *tokens = cxLinkedListCreate(pool_allocator(pool), cx_cmp_ptr, sizeof(cxstring));
    cxstring token = cx_str("defined");
    cxListAdd(tokens, &token);
    
    token = cx_str("$testvar1");
    cxListAdd(tokens, &token);
    
    UCX_TEST_BEGIN;
    
    size_t pos = 0;
    NSAPIExpression *expr = expr_parse_logical_expr(pool, tokens, &pos);
    
    UCX_TEST_ASSERT(pos == 2, "wrong token pos");
    UCX_TEST_ASSERT(expr, "expression is null");
    UCX_TEST_ASSERT(expr->type == NSAPI_EXPRESSION_UNARY, "wrong type");
    UCX_TEST_ASSERT(expr->operator == NSAPI_EXPRESSION_VALUE_DEFINED, "wrong operator");
    UCX_TEST_ASSERT(expr->left, "missing left operand");
    UCX_TEST_ASSERT(expr->left->type == NSAPI_EXPRESSION_VARIABLE, "operand is not a variable");
    
    UCX_TEST_END;
    
    pool_destroy(pool);
}

UCX_TEST(test_expr_op_defined) {
    pool_handle_t *pool = pool_create();
    
    CxList *tokens = cxLinkedListCreate(pool_allocator(pool), cx_cmp_ptr, sizeof(cxstring));
    cxstring token = cx_str("true");
    cxListAdd(tokens, &token);
    
    token = cx_str("==");
    cxListAdd(tokens, &token);
    
    token = cx_str("not");
    cxListAdd(tokens, &token);
    
    token = cx_str("defined");
    cxListAdd(tokens, &token);
    
    token = cx_str("$var");
    cxListAdd(tokens, &token);
    
    UCX_TEST_BEGIN;
    
    size_t pos = 0;
    NSAPIExpression *expr = expr_parse_logical_expr(pool, tokens, &pos);
    
    UCX_TEST_ASSERT(pos == 5, "wrong token pos");
    UCX_TEST_ASSERT(expr, "expression is null");
    UCX_TEST_ASSERT(expr->operator == NSAPI_EXPRESSION_EQ, "wrong operator");
    UCX_TEST_ASSERT(expr->left, "missing left");
    UCX_TEST_ASSERT(expr->right, "missing right");
    UCX_TEST_ASSERT(expr->left->type == NSAPI_EXPRESSION_BOOL, "left expression is not a bool");
    UCX_TEST_ASSERT(expr->right->operator == NSAPI_EXPRESSION_NOT, "right: wrong operator");
    UCX_TEST_ASSERT(expr->right->left, "not op: missing left");
    UCX_TEST_ASSERT(expr->right->left->operator == NSAPI_EXPRESSION_VALUE_DEFINED, "missing defined operator");
    
    UCX_TEST_END;
    
    pool_destroy(pool);
}

UCX_TEST(test_expr_op_file_exists_simple) {
    pool_handle_t *pool = pool_create();
    
    CxList *tokens = cxLinkedListCreate(pool_allocator(pool), cx_cmp_ptr, sizeof(cxstring));
    cxstring token = cx_str("-e");
    cxListAdd(tokens, &token);
    
    token = cx_str("\"/path/file\"");
    cxListAdd(tokens, &token);
    
    UCX_TEST_BEGIN;
    
    size_t pos = 0;
    NSAPIExpression *expr = expr_parse_logical_expr(pool, tokens, &pos);
    
    UCX_TEST_ASSERT(pos == 2, "wrong token pos");
    UCX_TEST_ASSERT(expr, "expression is null");
    UCX_TEST_ASSERT(expr->type == NSAPI_EXPRESSION_UNARY, "wrong type");
    UCX_TEST_ASSERT(expr->operator == NSAPI_EXPRESSION_FILE_DIR_EXISTS, "wrong operator");
    UCX_TEST_ASSERT(expr->left, "missing left operand");
    UCX_TEST_ASSERT(expr->left->type == NSAPI_EXPRESSION_STRING, "operand is not a string");
    UCX_TEST_ASSERT(!cx_strcmp(expr->left->value.str, cx_str("/path/file")), "wrong string operand");
    
    UCX_TEST_END;
    
    pool_destroy(pool);
}

UCX_TEST(test_expr_parse_expr_func_arg0) {
    pool_handle_t *pool = pool_create();
    
    CxList *tokens = cxLinkedListCreate(pool_allocator(pool), cx_cmp_ptr, sizeof(cxstring));
    cxstring token = cx_str("test");
    cxListAdd(tokens, &token);
    token = cx_str("(");
    cxListAdd(tokens, &token);
    token = cx_str(")");
    cxListAdd(tokens, &token);
    
    UCX_TEST_BEGIN;
    
    size_t pos = 0;
    NSAPIExpression *expr = expr_parse_logical_expr(pool, tokens, &pos);
    
    UCX_TEST_ASSERT(pos == 3, "wrong token pos");
    UCX_TEST_ASSERT(expr, "expression is null");
    UCX_TEST_ASSERT(expr->type == NSAPI_EXPRESSION_IDENTIFIER, "wrong expression type");
    UCX_TEST_ASSERT(expr->operator == NSAPI_EXPRESSION_CALL, "wrong expression operator");
    UCX_TEST_ASSERT(!expr->left, "left is not null");
    UCX_TEST_ASSERT(!expr->right, "right is not null");
    
    UCX_TEST_END;
    
    pool_destroy(pool);
}


int test_get_args(NSAPIExpression *arglist, size_t maxArgs, size_t *numArgs, NSAPIExpression *arg) {
    if(!arg) {
        return 0;
    }
    if(arg->operator == NSAPI_EXPRESSION_ARG) {
        if(arg->left) {
            if(test_get_args(arglist, maxArgs, numArgs, arg->left)) {
                return 1;
            }
        }
        if(arg->right) {
            if(test_get_args(arglist, maxArgs, numArgs, arg->right)) {
                return 1;
            }
        }
    } else {
        if(*numArgs >= maxArgs) {
            return 1;
        }
        arglist[*numArgs] = *arg;
        (*numArgs)++;
    } 
    
    return 0;
}


UCX_TEST(test_expr_parse_expr_func_arg1) {
    pool_handle_t *pool = pool_create();
    
    CxList *tokens = cxLinkedListCreate(pool_allocator(pool), cx_cmp_ptr, sizeof(cxstring));
    cxstring token = cx_str("test");
    cxListAdd(tokens, &token);
    token = cx_str("(");
    cxListAdd(tokens, &token);
    token = cx_str("1");
    cxListAdd(tokens, &token);
    token = cx_str(")");
    cxListAdd(tokens, &token);
    
    UCX_TEST_BEGIN;
    
    size_t pos = 0;
    NSAPIExpression *expr = expr_parse_logical_expr(pool, tokens, &pos);
    
    UCX_TEST_ASSERT(pos == tokens->size, "wrong token pos");
    UCX_TEST_ASSERT(expr, "expression is null");
    UCX_TEST_ASSERT(expr->type == NSAPI_EXPRESSION_IDENTIFIER, "wrong expression type");
    UCX_TEST_ASSERT(expr->operator == NSAPI_EXPRESSION_CALL, "wrong expression operator");
    
    size_t numArgs = 0;
    NSAPIExpression args[8];
    int err = test_get_args(args, 8, &numArgs, expr->left);
    UCX_TEST_ASSERT(err == 0, "too much args");
    UCX_TEST_ASSERT(numArgs == 1, "wrong arg count");
    UCX_TEST_ASSERT(args[0].value.i == 1, "wrong arg value");
    
    UCX_TEST_END;
    
    pool_destroy(pool);
}

UCX_TEST(test_expr_parse_expr_func_arg3) {
    pool_handle_t *pool = pool_create();
    
    CxList *tokens = cxLinkedListCreate(pool_allocator(pool), cx_cmp_ptr, sizeof(cxstring));
    cxstring token = cx_str("test");
    cxListAdd(tokens, &token);
    token = cx_str("(");
    cxListAdd(tokens, &token);
    token = cx_str("1");
    cxListAdd(tokens, &token);
    token = cx_str(",");
    cxListAdd(tokens, &token);
    token = cx_str("2");
    cxListAdd(tokens, &token);
    token = cx_str(",");
    cxListAdd(tokens, &token);
    token = cx_str("3");
    cxListAdd(tokens, &token);
    token = cx_str(")");
    cxListAdd(tokens, &token);
    
    UCX_TEST_BEGIN;
    
    size_t pos = 0;
    NSAPIExpression *expr = expr_parse_logical_expr(pool, tokens, &pos);
    
    UCX_TEST_ASSERT(pos == tokens->size, "wrong token pos");
    UCX_TEST_ASSERT(expr, "expression is null");
    UCX_TEST_ASSERT(expr->type == NSAPI_EXPRESSION_IDENTIFIER, "wrong expression type");
    UCX_TEST_ASSERT(expr->operator == NSAPI_EXPRESSION_CALL, "wrong expression operator");
    
    size_t numArgs = 0;
    NSAPIExpression args[8];
    int err = test_get_args(args, 8, &numArgs, expr->left);
    UCX_TEST_ASSERT(err == 0, "too much args");
    UCX_TEST_ASSERT(numArgs == 3, "wrong arg count");
    UCX_TEST_ASSERT(args[0].value.i == 1, "arg0: wrong value");
    UCX_TEST_ASSERT(args[1].value.i == 2, "arg1: wrong value");
    UCX_TEST_ASSERT(args[2].value.i == 3, "arg2: wrong value");
    
    UCX_TEST_END;
    
    pool_destroy(pool);
}

UCX_TEST(test_expr_parse_expr_func_expr1) {
    pool_handle_t *pool = pool_create();
    
    CxList *tokens = cxLinkedListCreate(pool_allocator(pool), cx_cmp_ptr, sizeof(cxstring));
    cxstring token = cx_str("test");
    cxListAdd(tokens, &token);
    token = cx_str("(");
    cxListAdd(tokens, &token);
    token = cx_str("1");
    cxListAdd(tokens, &token);
    token = cx_str(",");
    cxListAdd(tokens, &token);
    token = cx_str("2");
    cxListAdd(tokens, &token);
    token = cx_str("+");
    cxListAdd(tokens, &token);
    token = cx_str("3");
    cxListAdd(tokens, &token);
    token = cx_str(")");
    cxListAdd(tokens, &token);
    
    UCX_TEST_BEGIN;
    
    size_t pos = 0;
    NSAPIExpression *expr = expr_parse_logical_expr(pool, tokens, &pos);
    
    UCX_TEST_ASSERT(pos == tokens->size, "wrong token pos");
    UCX_TEST_ASSERT(expr, "expression is null");
    UCX_TEST_ASSERT(expr->type == NSAPI_EXPRESSION_IDENTIFIER, "wrong expression type");
    UCX_TEST_ASSERT(expr->operator == NSAPI_EXPRESSION_CALL, "wrong expression operator");
    
    size_t numArgs = 0;
    NSAPIExpression args[8];
    int err = test_get_args(args, 8, &numArgs, expr->left);
    UCX_TEST_ASSERT(err == 0, "too much args");
    UCX_TEST_ASSERT(numArgs == 2, "wrong arg count");
    UCX_TEST_ASSERT(args[0].value.i == 1, "arg0: wrong value");
    UCX_TEST_ASSERT(args[1].operator == NSAPI_EXPRESSION_ADD, "arg1: wrong operator");
    UCX_TEST_ASSERT(args[1].left && args[1].right, "arg1: missing operator values");
    UCX_TEST_ASSERT(args[1].left->value.i == 2 && args[1].right->value.i == 3, "arg1: wrong operator values");
    
    UCX_TEST_END;
    
    pool_destroy(pool);
}

UCX_TEST(test_expr_parse_expr_func_expr2) {
    pool_handle_t *pool = pool_create();
    
    CxList *tokens = cxLinkedListCreate(pool_allocator(pool), cx_cmp_ptr, sizeof(cxstring));
    cxstring token = cx_str("test");
    cxListAdd(tokens, &token);
    token = cx_str("(");
    cxListAdd(tokens, &token);
    token = cx_str("2");
    cxListAdd(tokens, &token);
    token = cx_str("+");
    cxListAdd(tokens, &token);
    token = cx_str("3");
    cxListAdd(tokens, &token);
    token = cx_str(",");
    cxListAdd(tokens, &token);
    token = cx_str("sub");
    cxListAdd(tokens, &token);
    token = cx_str("(");
    cxListAdd(tokens, &token);
    token = cx_str("4");
    cxListAdd(tokens, &token);
    token = cx_str(")");
    cxListAdd(tokens, &token);
    token = cx_str(",");
    cxListAdd(tokens, &token);
    token = cx_str("6");
    cxListAdd(tokens, &token);
    token = cx_str(")");
    cxListAdd(tokens, &token);
    
    UCX_TEST_BEGIN;
    
    size_t pos = 0;
    NSAPIExpression *expr = expr_parse_logical_expr(pool, tokens, &pos);
    
    UCX_TEST_ASSERT(pos == tokens->size, "wrong token pos");
    UCX_TEST_ASSERT(expr, "expression is null");
    UCX_TEST_ASSERT(expr->type == NSAPI_EXPRESSION_IDENTIFIER, "wrong expression type");
    UCX_TEST_ASSERT(expr->operator == NSAPI_EXPRESSION_CALL, "wrong expression operator");
    
    size_t numArgs = 0;
    NSAPIExpression args[8];
    int err = test_get_args(args, 8, &numArgs, expr->left);
    UCX_TEST_ASSERT(err == 0, "too much args");
    UCX_TEST_ASSERT(numArgs == 3, "wrong arg count");
    UCX_TEST_ASSERT(args[0].operator == NSAPI_EXPRESSION_ADD, "arg0: wrong operator");
    UCX_TEST_ASSERT(args[0].left && args[0].right, "arg0: missing operator values");
    UCX_TEST_ASSERT(args[1].operator == NSAPI_EXPRESSION_CALL, "arg1: wrong operator");
    UCX_TEST_ASSERT(args[1].left, "arg1: missing args");
    UCX_TEST_ASSERT(args[2].type == NSAPI_EXPRESSION_INT, "arg2: wrong type");
    UCX_TEST_ASSERT(args[2].value.i == 6, "arg2: wrong value");
    
    UCX_TEST_END;
    
    pool_destroy(pool);
}