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/*
 * tests of list implementation
 */

#include <stdio.h>
#include <stdlib.h>

#include "ucx/list.h"
#include "ucx/dlist.h"

struct test1_data {
    int values[3];
    int i;
};

int int_cmp(void* e1, void *e2, void *data) {
    if (e1 == NULL || e2 == NULL) return (e1 == e2) ? 0 : -1;
    
    int *i1 = (int*)e1, *i2 = (int*)e2;
    int r = (*i1) - (*i2);
    return (r < 0) ? -1 : (r == 0 ? 0 : 1);
}

int dlist_tests_foreach(void *v, void *custom) {
    UcxDlist *dl = (UcxDlist*)v;
    struct test1_data *tdata = (struct test1_data*)custom;

    tdata->values[tdata->i] = *(int*)dl->data;
    tdata->i++;
    
    return 0;
}

int list_tests_foreach(void *v, void *custom) {
    UcxList *dl = (UcxList*)v;
    struct test1_data *tdata = (struct test1_data*)custom;

    tdata->values[tdata->i] = *(int*)dl->data;
    tdata->i++;
    
    return 0;
}

int dlist_tests() {
    int r = 0;
    int v[8];
    UcxDlist *dl = NULL;
    // build list 0,1,2,3,4,5,6,7
    printf("   Test ucx_dlist_append\n");
    fflush(stdout);
    for(int i=0;i<8;i++) {
        v[i] = i;
        dl = ucx_dlist_append(dl, &v[i]);
    }

    printf("   Test ucx_dlist_get\n");
    fflush(stdout);
    for(int i=0;i<8;i++) {
        UcxDlist *elm = ucx_dlist_get(dl, i);
        if(elm == NULL) {
            fprintf(stderr, "ucx_dlist_get failed: element is NULL\n");
            r--;
        }
        if(elm->data == NULL) {
            fprintf(stderr, "ucx_dlist_get failed: data is NULL\n");
            r--;
        }
        int *data = (int*)elm->data;
        if(*data != i) {
            fprintf(stderr, "ucx_dlist_get failed with index %d\n", i);
            r--;
        }
    }

    printf("   Test ucx_dlist_free\n");
    fflush(stdout);
    ucx_dlist_free(dl);

    dl = NULL;
    // build list 4,0,4
    printf("   Test ucx_dlist_prepend\n");
    dl = ucx_dlist_prepend(dl, &v[0]);
    dl = ucx_dlist_prepend(dl, &v[4]);
    dl = ucx_dlist_append(dl, &v[4]);

    struct test1_data tdata;
    tdata.i = 0;
    ucx_dlist_foreach(dl, dlist_tests_foreach, &tdata);

    if(tdata.values[0] != 4 || tdata.values[1] != 0 || tdata.values[2] != 4) {
        fprintf(stderr, "prepend/append test failed\n");
        fprintf(stderr, "content: [%d, %d, %d]\n",
                tdata.values[0], tdata.values[1], tdata.values[2]);
        r--;
    }

    printf("   Test ucx_dlist_equals\n");
    UcxDlist *dl2 = NULL;
    dl2 = ucx_dlist_append(dl2, &v[4]);
    dl2 = ucx_dlist_append(dl2, &v[0]);
    dl2 = ucx_dlist_append(dl2, &v[4]);
    if (!ucx_dlist_equals(dl, dl2, NULL, NULL)) {
        fprintf(stderr, "ucx_dlist_equals failed (false negative)\n");
    }
    dl2->next->data = NULL;
    if (ucx_dlist_equals(dl, dl2, NULL, NULL)) {
        fprintf(stderr, "ucx_dlist_equals failed (false positive)\n");
    }
    dl2->next->data = &(tdata.values[1]);
    if (!ucx_dlist_equals(dl, dl2, int_cmp, NULL)) {
        fprintf(stderr, "ucx_dlist_equals failed (cmp_func false negative)\n");
    }
    if (ucx_dlist_equals(dl, dl2, NULL, NULL)) {
        fprintf(stderr, "ucx_dlist_equals failed (cmp_func false positive)\n");
    }
    ucx_dlist_free(dl2);
    
    printf("   Test ucx_dlist_clone\n");
    dl2 = ucx_dlist_clone(dl, NULL, NULL);
    if (!ucx_dlist_equals(dl, dl2, NULL, NULL)) {
        fprintf(stderr, "ucx_dlist_clone (without copy) failed\n");
    }
    ucx_dlist_free(dl2);
    
    printf("   TODO: test clone with copy\n");

    return r;
}

int list_tests() {
    int r = 0;
    int v[8];
    UcxList *dl = NULL;
    // build list 0,1,2,3,4,5,6,7
    printf("   Test ucx_list_append\n");
    fflush(stdout);
    for(int i=0;i<8;i++) {
        v[i] = i;
        dl = ucx_list_append(dl, &v[i]);
    }

    printf("   Test ucx_list_get\n");
    fflush(stdout);
    for(int i=0;i<8;i++) {
        UcxList *elm = ucx_list_get(dl, i);
        if(elm == NULL) {
            fprintf(stderr, "ucx_list_get failed: element is NULL\n");
            r--;
        }
        if(elm->data == NULL) {
            fprintf(stderr, "ucx_list_get failed: data is NULL\n");
            r--;
        }
        int *data = (int*)elm->data;
        if(*data != i) {
            fprintf(stderr, "ucx_list_get failed with index %d\n", i);
            r--;
        }
    }

    printf("   Test ucx_list_free\n");
    fflush(stdout);
    ucx_list_free(dl);

    dl = NULL;
    // build list 4,0,4
    printf("   Test ucx_list_prepend\n");
    dl = ucx_list_prepend(dl, &v[0]);
    dl = ucx_list_prepend(dl, &v[4]);
    dl = ucx_list_append(dl, &v[4]);

    struct test1_data tdata;
    tdata.i = 0;
    ucx_list_foreach(dl, list_tests_foreach, &tdata);

    if(tdata.values[0] != 4 || tdata.values[1] != 0 || tdata.values[2] != 4) {
        fprintf(stderr, "prepend/append test failed\n");
        fprintf(stderr, "content: [%d, %d, %d]\n",
                tdata.values[0], tdata.values[1], tdata.values[2]);
        r--;
    }
    
    printf("   Test ucx_list_equals\n");
    UcxList *dl2 = NULL;
    dl2 = ucx_list_append(dl2, &v[4]);
    dl2 = ucx_list_append(dl2, &v[0]);
    dl2 = ucx_list_append(dl2, &v[4]);
    if (!ucx_list_equals(dl, dl2, NULL, NULL)) {
        fprintf(stderr, "ucx_list_equals failed (false negative)\n");
    }
    dl2->next->data = NULL;
    if (ucx_list_equals(dl, dl2, NULL, NULL)) {
        fprintf(stderr, "ucx_list_equals failed (false positive)\n");
    }
    dl2->next->data = &(tdata.values[1]);
    if (!ucx_list_equals(dl, dl2, int_cmp, NULL)) {
        fprintf(stderr, "ucx_list_equals failed (cmp_func false negative)\n");
    }
    if (ucx_list_equals(dl, dl2, NULL, NULL)) {
        fprintf(stderr, "ucx_list_equals failed (cmp_func false positive)\n");
    }
    ucx_list_free(dl2);
    
    printf("   Test ucx_list_clone\n");
    dl2 = ucx_list_clone(dl, NULL, NULL);
    if (!ucx_list_equals(dl, dl2, NULL, NULL)) {
        fprintf(stderr, "ucx_list_clone (without copy) failed\n");
    }
    ucx_list_free(dl2);
    
    printf("   TODO: test clone with copy\n");

    return r;
}