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Wrote tests for Toy_Table

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I hope that's it, I don't wanna do that again XD
This commit is contained in:
Kayne Ruse
2024-10-04 16:50:54 +10:00
parent 5cf2e70b7d
commit 196b5f86f1
6 changed files with 759 additions and 73 deletions
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18
.notes/hash_generator_1.c Normal file
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@@ -0,0 +1,18 @@
https://www.programiz.com/c-programming/online-compiler/
#include <stdio.h>
static unsigned int hashUInt(unsigned int x) {
x = ((x >> 16) ^ x) * 0x45d9f3b;
x = ((x >> 16) ^ x) * 0x45d9f3b;
x = (x >> 16) ^ x;
return x;
}
int main() {
//print the index/hash pairs
for (unsigned int i = 0; i < 100; i++) {
printf("{%u:%u}\n", i, hashUInt(i) % 16);
}
return 0;
}

23
.notes/hash_generator_2.c Normal file
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@@ -0,0 +1,23 @@
https://www.programiz.com/c-programming/online-compiler/
#include <stdio.h>
static unsigned int hashUInt(unsigned int x) {
x = ((x >> 16) ^ x) * 0x45d9f3b;
x = ((x >> 16) ^ x) * 0x45d9f3b;
x = (x >> 16) ^ x;
return x;
}
int main() {
//find the first number with a specific hash, then print the c-code
for (unsigned int h = 0; h < 20; h++) {
for (unsigned int i = 0; i < 100; i++) {
if (hashUInt(i) % 32 == h) {
printf("Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(%d), TOY_VALUE_TO_INTEGER(42)); //hash: %d\n", i, h);
break;
}
}
}
return 0;
}

2
source/toy.h
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@@ -10,7 +10,7 @@
#include "toy_stack.h" #include "toy_stack.h"
#include "toy_bucket.h" #include "toy_bucket.h"
#include "toy_string.h" #include "toy_string.h"
//TODO: hashtable #include "toy_table.h"
//IR structures and other components //IR structures and other components
#include "toy_ast.h" #include "toy_ast.h"

152
source/toy_table.c
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@@ -9,59 +9,24 @@
#define MIN_CAPACITY 16 #define MIN_CAPACITY 16
//utils //utils
static Toy_Table* adjustTableCapacity(Toy_Table* oldTable, unsigned int newCapacity) { static void probeAndInsert(Toy_Table** table, Toy_Value key, Toy_Value value) {
//allocate and zero a new table in memory //make the entry
Toy_Table* newTable = malloc(newCapacity * sizeof(Toy_TableEntry) + sizeof(Toy_Table));
newTable->capacity = newCapacity;
newTable->count = 0;
newTable->minPsl = 0;
newTable->maxPsl = 0;
//unlike other structures, the empty space in a table needs to be null
memset(newTable + 1, 0, newTable->capacity * sizeof(Toy_TableEntry));
if (oldTable == NULL) { //for initial allocations
return newTable;
}
//for each entry in the old table, copy it into the new table
for (int i = 0; i < oldTable->capacity; i++) {
Toy_insertTable(&newTable, oldTable->data[i].key, oldTable->data[i].value);
}
//clean up and return
free(oldTable);
return newTable;
}
//exposed functions
Toy_Table* Toy_allocateTable() {
return adjustTableCapacity(NULL, MIN_CAPACITY);
}
void Toy_freeTable(Toy_Table* table) {
//TODO: slip in a call to free the complex values here
free(table);
}
void Toy_insertTable(Toy_Table** table, Toy_Value key, Toy_Value value) {
if (TOY_VALUE_IS_NULL(key) || TOY_VALUE_IS_BOOLEAN(key)) { //TODO: disallow functions and opaques
fprintf(stderr, TOY_CC_ERROR "ERROR: Bad table key\n" TOY_CC_RESET);
exit(-1); //TODO: #127
}
//expand the capacity
if ((*table)->capacity < (*table)->count * (1 / 0.75f)) {
(*table) = adjustTableCapacity(*table, (*table)->capacity * 2);
}
//insert
unsigned int probe = Toy_hashValue(key) % (*table)->capacity; unsigned int probe = Toy_hashValue(key) % (*table)->capacity;
Toy_TableEntry entry = (Toy_TableEntry){ .key = key, .value = value, .psl = 0 }; Toy_TableEntry entry = (Toy_TableEntry){ .key = key, .value = value, .psl = 0 };
//probe
while (true) { while (true) {
//if we're overriding an existing value
if (TOY_VALUE_IS_EQUAL((*table)->data[probe].key, key)) {
(*table)->data[probe] = entry;
//TODO: benchmark the psl optimisation
(*table)->minPsl = entry.psl < (*table)->minPsl ? entry.psl : (*table)->minPsl;
(*table)->maxPsl = entry.psl > (*table)->maxPsl ? entry.psl : (*table)->maxPsl;
return;
}
//if this spot is free, insert and return //if this spot is free, insert and return
if (TOY_VALUE_IS_NULL((*table)->data[probe].key)) { if (TOY_VALUE_IS_NULL((*table)->data[probe].key)) {
(*table)->data[probe] = entry; (*table)->data[probe] = entry;
@@ -88,7 +53,65 @@ void Toy_insertTable(Toy_Table** table, Toy_Value key, Toy_Value value) {
} }
} }
Toy_Value Toy_lookupTableValue(Toy_Table** table, Toy_Value key) { static Toy_Table* adjustTableCapacity(Toy_Table* oldTable, unsigned int newCapacity) {
//allocate and zero a new table in memory
Toy_Table* newTable = malloc(newCapacity * sizeof(Toy_TableEntry) + sizeof(Toy_Table));
if (newTable == NULL) {
fprintf(stderr, TOY_CC_ERROR "ERROR: Failed to allocate a 'Toy_Table' of %u capacity\n" TOY_CC_RESET, newCapacity);
exit(-1);
}
newTable->capacity = newCapacity;
newTable->count = 0;
newTable->minPsl = 0;
newTable->maxPsl = 0;
//unlike other structures, the empty space in a table needs to be null
memset(newTable + 1, 0, newTable->capacity * sizeof(Toy_TableEntry));
if (oldTable == NULL) { //for initial allocations
return newTable;
}
//for each entry in the old table, copy it into the new table
for (int i = 0; i < oldTable->capacity; i++) {
if (!TOY_VALUE_IS_NULL(oldTable->data[i].key)) {
probeAndInsert(&newTable, oldTable->data[i].key, oldTable->data[i].value);
}
}
//clean up and return
free(oldTable);
return newTable;
}
//exposed functions
Toy_Table* Toy_allocateTable() {
return adjustTableCapacity(NULL, MIN_CAPACITY);
}
void Toy_freeTable(Toy_Table* table) {
//TODO: slip in a call to free the complex values here
free(table);
}
void Toy_insertTable(Toy_Table** table, Toy_Value key, Toy_Value value) {
if (TOY_VALUE_IS_NULL(key) || TOY_VALUE_IS_BOOLEAN(key)) { //TODO: disallow functions and opaques
fprintf(stderr, TOY_CC_ERROR "ERROR: Bad table key\n" TOY_CC_RESET);
exit(-1); //TODO: #127
}
//expand the capacity
if ((*table)->count > (*table)->capacity * 0.8) {
(*table) = adjustTableCapacity(*table, (*table)->capacity * 2);
}
probeAndInsert(table, key, value);
}
Toy_Value Toy_lookupTable(Toy_Table** table, Toy_Value key) {
if (TOY_VALUE_IS_NULL(key) || TOY_VALUE_IS_BOOLEAN(key)) { //TODO: disallow functions and opaques if (TOY_VALUE_IS_NULL(key) || TOY_VALUE_IS_BOOLEAN(key)) { //TODO: disallow functions and opaques
fprintf(stderr, TOY_CC_ERROR "ERROR: Bad table key\n" TOY_CC_RESET); fprintf(stderr, TOY_CC_ERROR "ERROR: Bad table key\n" TOY_CC_RESET);
exit(-1); //TODO: #127 exit(-1); //TODO: #127
@@ -96,7 +119,6 @@ Toy_Value Toy_lookupTableValue(Toy_Table** table, Toy_Value key) {
//lookup //lookup
unsigned int probe = Toy_hashValue(key) % (*table)->capacity; unsigned int probe = Toy_hashValue(key) % (*table)->capacity;
unsigned int counter = 0;
while (true) { while (true) {
//found the entry //found the entry
@@ -104,18 +126,17 @@ Toy_Value Toy_lookupTableValue(Toy_Table** table, Toy_Value key) {
return (*table)->data[probe].value; return (*table)->data[probe].value;
} }
//if the psl is too big, or empty slot //if its an empty slot
if ((*table)->data[probe].psl > counter || TOY_VALUE_IS_NULL((*table)->data[probe].key)) { if (TOY_VALUE_IS_NULL((*table)->data[probe].key)) {
return TOY_VALUE_TO_NULL(); return TOY_VALUE_TO_NULL();
} }
//adjust and continue //adjust and continue
probe = (probe + 1) % (*table)->capacity; probe = (probe + 1) % (*table)->capacity;
counter++;
} }
} }
void Toy_removeTableEntry(Toy_Table** table, Toy_Value key) { void Toy_removeTable(Toy_Table** table, Toy_Value key) {
if (TOY_VALUE_IS_NULL(key) || TOY_VALUE_IS_BOOLEAN(key)) { //TODO: disallow functions and opaques if (TOY_VALUE_IS_NULL(key) || TOY_VALUE_IS_BOOLEAN(key)) { //TODO: disallow functions and opaques
fprintf(stderr, TOY_CC_ERROR "ERROR: Bad table key\n" TOY_CC_RESET); fprintf(stderr, TOY_CC_ERROR "ERROR: Bad table key\n" TOY_CC_RESET);
exit(-1); //TODO: #127 exit(-1); //TODO: #127
@@ -123,7 +144,6 @@ void Toy_removeTableEntry(Toy_Table** table, Toy_Value key) {
//lookup //lookup
unsigned int probe = Toy_hashValue(key) % (*table)->capacity; unsigned int probe = Toy_hashValue(key) % (*table)->capacity;
unsigned int counter = 0;
unsigned int wipe = probe; //wiped at the end unsigned int wipe = probe; //wiped at the end
while (true) { while (true) {
@@ -132,31 +152,31 @@ void Toy_removeTableEntry(Toy_Table** table, Toy_Value key) {
break; break;
} }
//if the psl is too big, or empty slot //if its an empty slot
if ((*table)->data[probe].psl > counter || TOY_VALUE_IS_NULL((*table)->data[probe].key)) { if (TOY_VALUE_IS_NULL((*table)->data[probe].key)) {
return; return;
} }
//adjust and continue //adjust and continue
probe = (probe + 1) % (*table)->capacity; probe = (probe + 1) % (*table)->capacity;
counter++;
} }
//shift down the later entries (past the probing point) //shift along the later entries
for (unsigned int i = (*table)->minPsl; i < (*table)->maxPsl; i++) { for (unsigned int i = (*table)->minPsl; i < (*table)->maxPsl; i++) {
unsigned int p = (probe + i + 0) % (*table)->capacity; //prev unsigned int p = (probe + i + 0) % (*table)->capacity; //prev
unsigned int u = (probe + i + 1) % (*table)->capacity; //current unsigned int u = (probe + i + 1) % (*table)->capacity; //current
//if the psl is too big, or an empty slot, stop
if ((*table)->data[u].psl > (counter + i) || TOY_VALUE_IS_NULL((*table)->data[u].key)) {
break;
}
(*table)->data[p] = (*table)->data[u]; (*table)->data[p] = (*table)->data[u];
(*table)->data[p].psl--; (*table)->data[p].psl--;
wipe = wipe % (*table)->capacity;
//if you hit something where it should be, or nothing at all, stop
if (TOY_VALUE_IS_NULL((*table)->data[u].key) || (*table)->data[p].psl == 0) {
wipe = u;
break;
}
} }
//finally, wipe the removed entry //finally, wipe the removed entry
(*table)->data[wipe] = (Toy_TableEntry){ .key = TOY_VALUE_TO_NULL(), .value = TOY_VALUE_TO_NULL(), .psl = 0 }; (*table)->data[wipe] = (Toy_TableEntry){ .key = TOY_VALUE_TO_NULL(), .value = TOY_VALUE_TO_NULL(), .psl = 0 };
(*table)->count--;
} }

4
source/toy_table.h
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@@ -23,5 +23,5 @@ typedef struct Toy_Table { //32 | 64 BITNESS
TOY_API Toy_Table* Toy_allocateTable(); TOY_API Toy_Table* Toy_allocateTable();
TOY_API void Toy_freeTable(Toy_Table* table); TOY_API void Toy_freeTable(Toy_Table* table);
TOY_API void Toy_insertTable(Toy_Table** table, Toy_Value key, Toy_Value value); TOY_API void Toy_insertTable(Toy_Table** table, Toy_Value key, Toy_Value value);
TOY_API Toy_Value Toy_lookupTableValue(Toy_Table** table, Toy_Value key); TOY_API Toy_Value Toy_lookupTable(Toy_Table** table, Toy_Value key);
TOY_API void Toy_removeTableEntry(Toy_Table** table, Toy_Value key); TOY_API void Toy_removeTable(Toy_Table** table, Toy_Value key);

633
tests/cases/test_table.c
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@@ -4,17 +4,610 @@
#include <stdio.h> #include <stdio.h>
int test_table_allocation() { int test_table_allocation() {
//allocate and free a table
{
//setup
Toy_Table* table = Toy_allocateTable();
//check
if (table == NULL)
{
fprintf(stderr, TOY_CC_ERROR "ERROR: Failed to allocate a table\n" TOY_CC_RESET);
Toy_freeTable(table);
return -1;
}
//free
Toy_freeTable(table);
}
return 0;
}
int test_table_simple_insert_lookup_and_remove() {
//simple insert
{
//setup
Toy_Table* table = Toy_allocateTable();
Toy_Value key = TOY_VALUE_TO_INTEGER(1);
Toy_Value value = TOY_VALUE_TO_INTEGER(42);
//insert
Toy_insertTable(&table, key, value);
if (table == NULL ||
table->capacity != 16 ||
table->count != 1)
{
fprintf(stderr, TOY_CC_ERROR "ERROR: Failed to insert into a table\n" TOY_CC_RESET);
Toy_freeTable(table);
return -1;
}
//lookup
Toy_Value result = Toy_lookupTable(&table, TOY_VALUE_TO_INTEGER(1));
//check lookup
if (table == NULL ||
table->capacity != 16 ||
table->count != 1 ||
TOY_VALUE_AS_INTEGER(result) != 42)
{
fprintf(stderr, TOY_CC_ERROR "ERROR: Failed to lookup from a table\n" TOY_CC_RESET);
Toy_freeTable(table);
return -1;
}
//remove
Toy_removeTable(&table, TOY_VALUE_TO_INTEGER(1));
//check remove
if (table == NULL ||
table->capacity != 16 ||
table->count != 0)
{
fprintf(stderr, TOY_CC_ERROR "ERROR: Failed to remove from a table\n" TOY_CC_RESET);
Toy_freeTable(table);
return -1;
}
//free
Toy_freeTable(table);
}
return 0;
}
//macros are a godsend
#define TEST_ENTRY_STATE(i, k, v, p) \
TOY_VALUE_IS_INTEGER(table->data[i].key) != true || \
TOY_VALUE_AS_INTEGER(table->data[i].key) != k || \
TOY_VALUE_IS_INTEGER(table->data[i].value) != true || \
TOY_VALUE_AS_INTEGER(table->data[i].value) != v || \
table->data[i].psl != p
int test_table_contents_no_expansion() {
//single insert
{
//setup
Toy_Table* table = Toy_allocateTable();
//insert a key and value
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(1), TOY_VALUE_TO_INTEGER(42));
//check the state
if (table == NULL ||
table->capacity != 16 ||
table->count != 1 ||
TEST_ENTRY_STATE(7, 1, 42, 0)
)
{
fprintf(stderr, TOY_CC_ERROR "ERROR: Unrecognized state from table data, single insert {1:42}\n" TOY_CC_RESET);
Toy_freeTable(table);
return -1;
}
//free
Toy_freeTable(table);
}
//multiple inserts, no collisions
{
//setup
Toy_Table* table = Toy_allocateTable();
//inserts
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(1), TOY_VALUE_TO_INTEGER(42)); //hash: 7
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(2), TOY_VALUE_TO_INTEGER(69)); //hash: 8
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(3), TOY_VALUE_TO_INTEGER(420)); //hash: 5
//check the state
if (table == NULL ||
table->capacity != 16 ||
table->count != 3 ||
TEST_ENTRY_STATE(7, 1, 42, 0) ||
TEST_ENTRY_STATE(8, 2, 69, 0) ||
TEST_ENTRY_STATE(5, 3, 420, 0)
)
{
fprintf(stderr, TOY_CC_ERROR "ERROR: Unrecognized state from table data, multiple inserts, no collisions {1:42},{2:69},{3:420}\n" TOY_CC_RESET);
Toy_freeTable(table);
return -1;
}
//free
Toy_freeTable(table);
}
//multiple inserts, with collisions
{
//setup
Toy_Table* table = Toy_allocateTable();
//inserts
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(1), TOY_VALUE_TO_INTEGER(42)); //hash: 7
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(14), TOY_VALUE_TO_INTEGER(69)); //hash: 7
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(76), TOY_VALUE_TO_INTEGER(420)); //hash: 7
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(80), TOY_VALUE_TO_INTEGER(8891)); //hash: 7
//check the state
if (table == NULL ||
table->capacity != 16 ||
table->count != 4 ||
TEST_ENTRY_STATE(7, 1, 42, 0) ||
TEST_ENTRY_STATE(8, 14, 69, 1) ||
TEST_ENTRY_STATE(9, 76, 420, 2) ||
TEST_ENTRY_STATE(10, 80, 8891, 3)
)
{
fprintf(stderr, TOY_CC_ERROR "ERROR: Unrecognized state from table data, muiltiple inserts, with collisions {1:42},{14:69},{76:420},{80:8891}\n" TOY_CC_RESET);
Toy_freeTable(table);
return -1;
}
//free
Toy_freeTable(table);
}
//multiple inserts, with collisions, modulo wrap
{
//setup
Toy_Table* table = Toy_allocateTable();
//inserts
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(17), TOY_VALUE_TO_INTEGER(42)); //hash: 15
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(33), TOY_VALUE_TO_INTEGER(69)); //hash: 15
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(70), TOY_VALUE_TO_INTEGER(420)); //hash: 15
//check the state
if (table == NULL ||
table->capacity != 16 ||
table->count != 3 ||
TEST_ENTRY_STATE(15, 17, 42, 0) ||
TEST_ENTRY_STATE(0, 33, 69, 1) ||
TEST_ENTRY_STATE(1, 70, 420, 2)
)
{
fprintf(stderr, TOY_CC_ERROR "ERROR: Unrecognized state from table data, muiltiple inserts, with collisions, modulo wrap {17:42},{33:69},{70:420}\n" TOY_CC_RESET);
Toy_freeTable(table);
return -1;
}
//free
Toy_freeTable(table);
}
//lookup, with collisions, modulo wrap
{
//setup
Toy_Table* table = Toy_allocateTable();
//inserts
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(17), TOY_VALUE_TO_INTEGER(42)); //hash: 15
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(33), TOY_VALUE_TO_INTEGER(69)); //hash: 15
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(70), TOY_VALUE_TO_INTEGER(420)); //hash: 15
//lookup
Toy_Value result = Toy_lookupTable(&table, TOY_VALUE_TO_INTEGER(33));
//check the state
if (table == NULL ||
table->capacity != 16 ||
table->count != 3 ||
TOY_VALUE_IS_INTEGER(result) != true ||
TOY_VALUE_AS_INTEGER(result) != 69
)
{
fprintf(stderr, TOY_CC_ERROR "ERROR: Bad result from table lookup with collisions and modulo wrap\n" TOY_CC_RESET);
Toy_freeTable(table);
return -1;
}
//free
Toy_freeTable(table);
}
//multiple inserts, with collisions, modulo wrap, psl overlap
{
//setup
Toy_Table* table = Toy_allocateTable();
//inserts
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(17), TOY_VALUE_TO_INTEGER(42)); //hash: 15
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(33), TOY_VALUE_TO_INTEGER(69)); //hash: 15
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(70), TOY_VALUE_TO_INTEGER(420)); //hash: 15
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(35), TOY_VALUE_TO_INTEGER(8891)); //hash: 1
//check the state
if (table == NULL ||
table->capacity != 16 ||
table->count != 4 ||
TEST_ENTRY_STATE(15, 17, 42, 0) ||
TEST_ENTRY_STATE(0, 33, 69, 1) ||
TEST_ENTRY_STATE(1, 70, 420, 2) ||
TEST_ENTRY_STATE(2, 35, 8891, 1)
)
{
fprintf(stderr, TOY_CC_ERROR "ERROR: Unrecognized state from table data, muiltiple inserts, with collisions, modulo wrap, psl overlap {17:42},{33:69},{70:420},{35:8891}\n" TOY_CC_RESET);
Toy_freeTable(table);
return -1;
}
//free
Toy_freeTable(table);
}
//multiple inserts, with collisions, modulo wrap, psl overlap, psl shift
{
//setup
Toy_Table* table = Toy_allocateTable();
//inserts
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(17), TOY_VALUE_TO_INTEGER(42)); //hash: 15
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(33), TOY_VALUE_TO_INTEGER(69)); //hash: 15
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(70), TOY_VALUE_TO_INTEGER(420)); //hash: 15
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(35), TOY_VALUE_TO_INTEGER(8891)); //hash: 1
//remove
Toy_removeTable(&table, TOY_VALUE_TO_INTEGER(33));
//check the state
if (table == NULL ||
table->capacity != 16 ||
table->count != 3 ||
TEST_ENTRY_STATE(15, 17, 42, 0) ||
TEST_ENTRY_STATE(0, 70, 420, 1) ||
TEST_ENTRY_STATE(1, 35, 8891, 0)
)
{
fprintf(stderr, TOY_CC_ERROR "ERROR: Unrecognized state from table data, muiltiple inserts, with collisions, modulo wrap, psl overlap, psl shift {17:42},{*33:69},{70:420},{35:8891}\n" TOY_CC_RESET);
Toy_freeTable(table);
return -1;
}
//free
Toy_freeTable(table);
}
return 0;
}
int test_table_contents_with_expansions() {
//simple expansion
{
//setup
Toy_Table* table = Toy_allocateTable();
//insert a key and value
for (int i = 0; i < 20; i++) {
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(i), TOY_VALUE_TO_INTEGER(42));
}
//check the state
if (table == NULL ||
table->capacity != 32 ||
table->count != 20
)
{
fprintf(stderr, TOY_CC_ERROR "ERROR: Failed to expand table capacity\n" TOY_CC_RESET);
Toy_freeTable(table);
return -1;
}
//free
Toy_freeTable(table);
}
//expansion, multiple inserts, no collisions
{
//setup
Toy_Table* table = Toy_allocateTable();
//inserts
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(0), TOY_VALUE_TO_INTEGER(42)); //hash: 0
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(35), TOY_VALUE_TO_INTEGER(42)); //hash: 1
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(19), TOY_VALUE_TO_INTEGER(42)); //hash: 2
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(8), TOY_VALUE_TO_INTEGER(42)); //hash: 3
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(10), TOY_VALUE_TO_INTEGER(42)); //hash: 4
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(3), TOY_VALUE_TO_INTEGER(42)); //hash: 5
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(28), TOY_VALUE_TO_INTEGER(42)); //hash: 6
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(1), TOY_VALUE_TO_INTEGER(42)); //hash: 7
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(6), TOY_VALUE_TO_INTEGER(42)); //hash: 8
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(93), TOY_VALUE_TO_INTEGER(42)); //hash: 9
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(85), TOY_VALUE_TO_INTEGER(42)); //hash: 10
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(9), TOY_VALUE_TO_INTEGER(42)); //hash: 11
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(11), TOY_VALUE_TO_INTEGER(42)); //hash: 12
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(22), TOY_VALUE_TO_INTEGER(42)); //hash: 13
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(13), TOY_VALUE_TO_INTEGER(42)); //hash: 14
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(17), TOY_VALUE_TO_INTEGER(42)); //hash: 15
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(43), TOY_VALUE_TO_INTEGER(42)); //hash: 16
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(4), TOY_VALUE_TO_INTEGER(42)); //hash: 17
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(5), TOY_VALUE_TO_INTEGER(42)); //hash: 18
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(7), TOY_VALUE_TO_INTEGER(42)); //hash: 19
//check the state
if (table == NULL ||
table->capacity != 32 ||
table->count != 20 ||
//effectively, check that each key was placed in the correct position after the expansion
TEST_ENTRY_STATE(0, 0, 42, 0) ||
TEST_ENTRY_STATE(1, 35, 42, 0) ||
TEST_ENTRY_STATE(2, 19, 42, 0) ||
TEST_ENTRY_STATE(3, 8, 42, 0) ||
TEST_ENTRY_STATE(4, 10, 42, 0) ||
TEST_ENTRY_STATE(5, 3, 42, 0) ||
TEST_ENTRY_STATE(6, 28, 42, 0) ||
TEST_ENTRY_STATE(7, 1, 42, 0) ||
TEST_ENTRY_STATE(8, 6, 42, 0) ||
TEST_ENTRY_STATE(9, 93, 42, 0) ||
TEST_ENTRY_STATE(10, 85, 42, 0) ||
TEST_ENTRY_STATE(11, 9, 42, 0) ||
TEST_ENTRY_STATE(12, 11, 42, 0) ||
TEST_ENTRY_STATE(13, 22, 42, 0) ||
TEST_ENTRY_STATE(14, 13, 42, 0) ||
TEST_ENTRY_STATE(15, 17, 42, 0) ||
TEST_ENTRY_STATE(16, 43, 42, 0) ||
TEST_ENTRY_STATE(17, 4, 42, 0) ||
TEST_ENTRY_STATE(18, 5, 42, 0) ||
TEST_ENTRY_STATE(19, 7, 42, 0)
)
{
fprintf(stderr, TOY_CC_ERROR "ERROR: Unrecognized state from table data after expansion, multiple inserts, no collisions\n" TOY_CC_RESET);
Toy_freeTable(table);
return -1;
}
//free
Toy_freeTable(table);
}
//multiple inserts, with collisions
{
//setup
Toy_Table* table = Toy_allocateTable();
//inserts
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(0), TOY_VALUE_TO_INTEGER(42)); //hash: 0
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(35), TOY_VALUE_TO_INTEGER(42)); //hash: 1
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(19), TOY_VALUE_TO_INTEGER(42)); //hash: 2
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(8), TOY_VALUE_TO_INTEGER(42)); //hash: 3
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(10), TOY_VALUE_TO_INTEGER(42)); //hash: 4
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(3), TOY_VALUE_TO_INTEGER(42)); //hash: 5
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(28), TOY_VALUE_TO_INTEGER(42)); //hash: 6
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(1), TOY_VALUE_TO_INTEGER(42)); //hash: 7
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(6), TOY_VALUE_TO_INTEGER(42)); //hash: 8
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(93), TOY_VALUE_TO_INTEGER(42)); //hash: 9
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(85), TOY_VALUE_TO_INTEGER(42)); //hash: 10
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(9), TOY_VALUE_TO_INTEGER(42)); //hash: 11
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(11), TOY_VALUE_TO_INTEGER(42)); //hash: 12
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(22), TOY_VALUE_TO_INTEGER(42)); //hash: 13
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(13), TOY_VALUE_TO_INTEGER(42)); //hash: 14
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(17), TOY_VALUE_TO_INTEGER(42)); //hash: 15
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(43), TOY_VALUE_TO_INTEGER(42)); //hash: 16
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(4), TOY_VALUE_TO_INTEGER(42)); //hash: 17
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(5), TOY_VALUE_TO_INTEGER(42)); //hash: 18
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(7), TOY_VALUE_TO_INTEGER(42)); //hash: 19
//insert one more
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(70), TOY_VALUE_TO_INTEGER(42)); //hash: 15
//check the state
if (table == NULL ||
table->capacity != 32 ||
table->count != 21 ||
TEST_ENTRY_STATE(0, 0, 42, 0) ||
TEST_ENTRY_STATE(1, 35, 42, 0) ||
TEST_ENTRY_STATE(2, 19, 42, 0) ||
TEST_ENTRY_STATE(3, 8, 42, 0) ||
TEST_ENTRY_STATE(4, 10, 42, 0) ||
TEST_ENTRY_STATE(5, 3, 42, 0) ||
TEST_ENTRY_STATE(6, 28, 42, 0) ||
TEST_ENTRY_STATE(7, 1, 42, 0) ||
TEST_ENTRY_STATE(8, 6, 42, 0) ||
TEST_ENTRY_STATE(9, 93, 42, 0) ||
TEST_ENTRY_STATE(10, 85, 42, 0) ||
TEST_ENTRY_STATE(11, 9, 42, 0) ||
TEST_ENTRY_STATE(12, 11, 42, 0) ||
TEST_ENTRY_STATE(13, 22, 42, 0) ||
TEST_ENTRY_STATE(14, 13, 42, 0) ||
TEST_ENTRY_STATE(15, 17, 42, 0) ||
TEST_ENTRY_STATE(16, 70, 42, 1) || //the collision
TEST_ENTRY_STATE(17, 43, 42, 1) ||
TEST_ENTRY_STATE(18, 4, 42, 1) ||
TEST_ENTRY_STATE(19, 5, 42, 1) ||
TEST_ENTRY_STATE(20, 7, 42, 1)
)
{
fprintf(stderr, TOY_CC_ERROR "ERROR: Unrecognized state from table data after expansion, muiltiple inserts, with collisions\n" TOY_CC_RESET);
Toy_freeTable(table);
return -1;
}
//free
Toy_freeTable(table);
}
//multiple inserts, with collisions, modulo wrap
{
//setup
Toy_Table* table = Toy_allocateTable();
//inserts
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(123), TOY_VALUE_TO_INTEGER(42)); //hash: 20
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(42), TOY_VALUE_TO_INTEGER(42)); //hash: 21
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(132), TOY_VALUE_TO_INTEGER(42)); //hash: 22
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(34), TOY_VALUE_TO_INTEGER(42)); //hash: 23
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(2), TOY_VALUE_TO_INTEGER(42)); //hash: 24
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(32), TOY_VALUE_TO_INTEGER(42)); //hash: 25
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(21), TOY_VALUE_TO_INTEGER(42)); //hash: 26
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(44), TOY_VALUE_TO_INTEGER(42)); //hash: 27
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(104), TOY_VALUE_TO_INTEGER(42)); //hash: 28
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(15), TOY_VALUE_TO_INTEGER(42)); //hash: 29
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(57), TOY_VALUE_TO_INTEGER(42)); //hash: 30
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(33), TOY_VALUE_TO_INTEGER(42)); //hash: 31
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(0), TOY_VALUE_TO_INTEGER(42)); //hash: 32
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(35), TOY_VALUE_TO_INTEGER(42)); //hash: 33
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(19), TOY_VALUE_TO_INTEGER(42)); //hash: 34
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(8), TOY_VALUE_TO_INTEGER(42)); //hash: 35
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(10), TOY_VALUE_TO_INTEGER(42)); //hash: 36
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(3), TOY_VALUE_TO_INTEGER(42)); //hash: 37
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(28), TOY_VALUE_TO_INTEGER(42)); //hash: 38
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(1), TOY_VALUE_TO_INTEGER(42)); //hash: 39
//insert one more
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(79), TOY_VALUE_TO_INTEGER(42)); //hash: 23
//check the state
if (table == NULL ||
table->capacity != 32 ||
table->count != 21 ||
TEST_ENTRY_STATE(20, 123, 42, 0) ||
TEST_ENTRY_STATE(21, 42, 42, 0) ||
TEST_ENTRY_STATE(22, 132, 42, 0) ||
TEST_ENTRY_STATE(23, 34, 42, 0) ||
TEST_ENTRY_STATE(24, 79, 42, 1) || //the collision
TEST_ENTRY_STATE(25, 2, 42, 1) ||
TEST_ENTRY_STATE(26, 32, 42, 1) ||
TEST_ENTRY_STATE(27, 21, 42, 1) ||
TEST_ENTRY_STATE(28, 44, 42, 1) ||
TEST_ENTRY_STATE(29, 104, 42, 1) ||
TEST_ENTRY_STATE(30, 15, 42, 1) ||
TEST_ENTRY_STATE(31, 57, 42, 1) ||
TEST_ENTRY_STATE(0, 33, 42, 1) ||
TEST_ENTRY_STATE(1, 0, 42, 1) ||
TEST_ENTRY_STATE(2, 35, 42, 1) ||
TEST_ENTRY_STATE(3, 19, 42, 1) ||
TEST_ENTRY_STATE(4, 8, 42, 1) ||
TEST_ENTRY_STATE(5, 10, 42, 1) ||
TEST_ENTRY_STATE(6, 3, 42, 1) ||
TEST_ENTRY_STATE(7, 28, 42, 1) ||
TEST_ENTRY_STATE(8, 1, 42, 1)
)
{
fprintf(stderr, TOY_CC_ERROR "ERROR: Unrecognized state from table data after expansion, muiltiple inserts, with collisions, modulo wrap\n" TOY_CC_RESET);
Toy_freeTable(table);
return -1;
}
//free
Toy_freeTable(table);
}
//lookup, with collisions, modulo wrap
{
//setup
Toy_Table* table = Toy_allocateTable();
//inserts
for (int i = 0; i < 20; i++) { //enough to expand
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(i), TOY_VALUE_TO_INTEGER(100 - i));
}
//lookup
Toy_Value result = Toy_lookupTable(&table, TOY_VALUE_TO_INTEGER(15));
//check the state
if (table == NULL ||
table->capacity != 32 ||
table->count != 20 ||
TOY_VALUE_IS_INTEGER(result) != true ||
TOY_VALUE_AS_INTEGER(result) != 85
)
{
fprintf(stderr, TOY_CC_ERROR "ERROR: Bad result from table lookup after expansion, with collisions and modulo wrap\n" TOY_CC_RESET);
Toy_freeTable(table);
return -1;
}
//free
Toy_freeTable(table);
}
//Skipped: multiple inserts, with collisions, modulo wrap, psl overlap
//Skipped: multiple inserts, with collisions, modulo wrap, psl overlap, psl shift
//Note: since psl overlap and psl shift both work without expansion, I'm leaving these tests unimplemented due to exhaustion.
return 0;
}
int test_table_expansions_under_stress() {
//multiple expansions, find one value
{
//setup
Toy_Table* table = Toy_allocateTable();
int top = 300;
//insert keys and values
for (int i = 0; i < 300; i++) {
Toy_insertTable(&table, TOY_VALUE_TO_INTEGER(i), TOY_VALUE_TO_INTEGER(top - i));
}
Toy_Value result = Toy_lookupTable(&table, TOY_VALUE_TO_INTEGER(265));
//check the state
if (table == NULL ||
table->capacity != 512 ||
table->count != 300 ||
TOY_VALUE_IS_INTEGER(result) != true ||
TOY_VALUE_AS_INTEGER(result) != 35
)
{
fprintf(stderr, TOY_CC_ERROR "ERROR: Table expansions under stress failed\n" TOY_CC_RESET);
Toy_freeTable(table);
return -1;
}
//free
Toy_freeTable(table);
}
return 0; return 0;
} }
int main() { int main() {
//not finished yet
fprintf(stderr, TOY_CC_WARN "'Toy_Table' is not yet tested\n" TOY_CC_RESET);
return 0;
//run each test set, returning the total errors given //run each test set, returning the total errors given
int total = 0, res = 0; int total = 0, res = 0;
//Note: there's some utility c programs in .notes called "hash_generator" that can help
{ {
res = test_table_allocation(); res = test_table_allocation();
if (res == 0) { if (res == 0) {
@@ -23,5 +616,37 @@ int main() {
total += res; total += res;
} }
{
res = test_table_simple_insert_lookup_and_remove();
if (res == 0) {
printf(TOY_CC_NOTICE "All good\n" TOY_CC_RESET);
}
total += res;
}
{
res = test_table_contents_no_expansion();
if (res == 0) {
printf(TOY_CC_NOTICE "All good\n" TOY_CC_RESET);
}
total += res;
}
{
res = test_table_contents_with_expansions();
if (res == 0) {
printf(TOY_CC_NOTICE "All good\n" TOY_CC_RESET);
}
total += res;
}
{
res = test_table_expansions_under_stress();
if (res == 0) {
printf(TOY_CC_NOTICE "All good\n" TOY_CC_RESET);
}
total += res;
}
return total; return total;
} }