diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index d5d3e8b32..ac0c6a0c3 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -15,6 +15,8 @@ jobs:
       run: make
     - name: check
       run: make check
+    - name: tests
+      run: make tests
     - name: diverse configurations
       run: |
             make distclean ENABLE_COMPUTED_GOTO=0
diff --git a/Makefile b/Makefile
index 159be32ba..bafc5379e 100644
--- a/Makefile
+++ b/Makefile
@@ -109,6 +109,7 @@ $(BIN): $(OBJS)
 
 # RISC-V Architecture Tests
 include mk/riscv-arch-test.mk
+include mk/tests.mk
 
 CHECK_ELF_FILES := \
 	hello \
@@ -143,7 +144,7 @@ endif
 endif
 
 clean:
-	$(RM) $(BIN) $(OBJS) $(deps)
+	$(RM) $(BIN) $(OBJS) $(deps) $(CACHE_OUT)
 distclean: clean
 	-$(RM) $(DOOM_DATA) $(QUAKE_DATA)
 	$(RM) -r $(OUT)/id1
diff --git a/mk/tests.mk b/mk/tests.mk
new file mode 100644
index 000000000..42991e2d3
--- /dev/null
+++ b/mk/tests.mk
@@ -0,0 +1,46 @@
+CACHE_TEST_DIR := tests/cache
+CACHE_BUILD_DIR := build/cache
+TARGET := test_cache
+
+CACHE_OBJS := \
+	test_cache.o
+
+CACHE_OBJS := $(addprefix $(CACHE_BUILD_DIR)/, $(CACHE_OBJS))
+OBJS += $(CACHE_OBJS)
+deps += $(CACHE_OBJS:%.o=%.o.d)
+
+
+CACHE_CHECK_ELF_FILES := \
+	cache_new \
+	cache_put \
+	cache_get \
+	cache_lru_replace \
+	cache_lfu_replace \
+	cache_lfu_ghost_replace \
+
+CACHE_OUT = $(addprefix $(CACHE_BUILD_DIR)/, $(CACHE_CHECK_ELF_FILES:%=%.out))
+
+tests : $(CACHE_OUT)
+	$(Q)$(foreach e,$(CACHE_CHECK_ELF_FILES),\
+		$(PRINTF) "Running $(e) ... "; \
+		if cmp $(CACHE_TEST_DIR)/$(e).expect $(CACHE_BUILD_DIR)/$(e).out; then \
+		$(call notice, [OK]); \
+		else \
+		$(PRINTF) "Failed.\n"; \
+		exit 1; \
+		fi; \
+	)
+
+$(CACHE_OUT): $(TARGET)
+	$(Q)$(foreach e,$(CACHE_CHECK_ELF_FILES),\
+		$(CACHE_BUILD_DIR)/$(TARGET) $(CACHE_TEST_DIR)/$(e).in > $(CACHE_BUILD_DIR)/$(e).out; \
+	)
+
+$(TARGET): $(CACHE_OBJS)
+	$(VECHO) "  CC\t$@\n"
+	$(Q)$(CC) $^ build/cache.o -o $(CACHE_BUILD_DIR)/$(TARGET)
+	
+$(CACHE_BUILD_DIR)/%.o: $(CACHE_TEST_DIR)/%.c 
+	$(VECHO) "  CC\t$@\n"
+	$(Q)mkdir -p $(dir $@)
+	$(Q)$(CC) -o $@ $(CFLAGS) -I./src -c -MMD -MF $@.d $<
\ No newline at end of file
diff --git a/tests/cache/cache_get.expect b/tests/cache/cache_get.expect
new file mode 100644
index 000000000..3c48e0620
--- /dev/null
+++ b/tests/cache/cache_get.expect
@@ -0,0 +1,5 @@
+NEW CACHE
+NULL
+NULL
+3
+FREE CACHE
diff --git a/tests/cache/cache_get.in b/tests/cache/cache_get.in
new file mode 100644
index 000000000..e4cac51b0
--- /dev/null
+++ b/tests/cache/cache_get.in
@@ -0,0 +1,6 @@
+NEW
+GET 1
+GET 2
+PUT 3 3
+GET 3
+FREE
\ No newline at end of file
diff --git a/tests/cache/cache_lfu_ghost_replace.expect b/tests/cache/cache_lfu_ghost_replace.expect
new file mode 100644
index 000000000..b62769b6f
--- /dev/null
+++ b/tests/cache/cache_lfu_ghost_replace.expect
@@ -0,0 +1,259 @@
+NEW CACHE
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+30
+31
+32
+33
+34
+35
+36
+37
+38
+39
+40
+41
+42
+43
+44
+45
+46
+47
+48
+49
+50
+51
+52
+53
+54
+55
+56
+57
+58
+59
+60
+61
+62
+63
+64
+65
+66
+67
+68
+69
+70
+71
+72
+73
+74
+75
+76
+77
+78
+79
+80
+81
+82
+83
+84
+85
+86
+87
+88
+89
+90
+91
+92
+93
+94
+95
+96
+97
+98
+99
+100
+101
+102
+103
+104
+105
+106
+107
+108
+109
+110
+111
+112
+113
+114
+115
+116
+117
+118
+119
+120
+121
+122
+123
+124
+125
+126
+127
+128
+129
+130
+131
+132
+133
+134
+135
+136
+137
+138
+139
+140
+141
+142
+143
+144
+145
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+148
+149
+150
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+152
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+154
+155
+156
+157
+158
+159
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+161
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+164
+165
+166
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+168
+169
+170
+171
+172
+173
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+178
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+184
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+198
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+200
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+214
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+228
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+230
+231
+232
+233
+234
+235
+236
+237
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+239
+240
+241
+242
+243
+244
+245
+246
+247
+248
+249
+250
+251
+252
+253
+254
+255
+256
+REPLACE 1
+FREE CACHE
diff --git a/tests/cache/cache_lfu_ghost_replace.in b/tests/cache/cache_lfu_ghost_replace.in
new file mode 100644
index 000000000..733b4d65c
--- /dev/null
+++ b/tests/cache/cache_lfu_ghost_replace.in
@@ -0,0 +1,771 @@
+NEW
+PUT 1 1
+PUT 2 2
+PUT 3 3
+PUT 4 4
+PUT 5 5
+PUT 6 6
+PUT 7 7
+PUT 8 8
+PUT 9 9
+PUT 10 10
+PUT 11 11
+PUT 12 12
+PUT 13 13
+PUT 14 14
+PUT 15 15
+PUT 16 16
+PUT 17 17
+PUT 18 18
+PUT 19 19
+PUT 20 20
+PUT 21 21
+PUT 22 22
+PUT 23 23
+PUT 24 24
+PUT 25 25
+PUT 26 26
+PUT 27 27
+PUT 28 28
+PUT 29 29
+PUT 30 30
+PUT 31 31
+PUT 32 32
+PUT 33 33
+PUT 34 34
+PUT 35 35
+PUT 36 36
+PUT 37 37
+PUT 38 38
+PUT 39 39
+PUT 40 40
+PUT 41 41
+PUT 42 42
+PUT 43 43
+PUT 44 44
+PUT 45 45
+PUT 46 46
+PUT 47 47
+PUT 48 48
+PUT 49 49
+PUT 50 50
+PUT 51 51
+PUT 52 52
+PUT 53 53
+PUT 54 54
+PUT 55 55
+PUT 56 56
+PUT 57 57
+PUT 58 58
+PUT 59 59
+PUT 60 60
+PUT 61 61
+PUT 62 62
+PUT 63 63
+PUT 64 64
+PUT 65 65
+PUT 66 66
+PUT 67 67
+PUT 68 68
+PUT 69 69
+PUT 70 70
+PUT 71 71
+PUT 72 72
+PUT 73 73
+PUT 74 74
+PUT 75 75
+PUT 76 76
+PUT 77 77
+PUT 78 78
+PUT 79 79
+PUT 80 80
+PUT 81 81
+PUT 82 82
+PUT 83 83
+PUT 84 84
+PUT 85 85
+PUT 86 86
+PUT 87 87
+PUT 88 88
+PUT 89 89
+PUT 90 90
+PUT 91 91
+PUT 92 92
+PUT 93 93
+PUT 94 94
+PUT 95 95
+PUT 96 96
+PUT 97 97
+PUT 98 98
+PUT 99 99
+PUT 100 100
+PUT 101 101
+PUT 102 102
+PUT 103 103
+PUT 104 104
+PUT 105 105
+PUT 106 106
+PUT 107 107
+PUT 108 108
+PUT 109 109
+PUT 110 110
+PUT 111 111
+PUT 112 112
+PUT 113 113
+PUT 114 114
+PUT 115 115
+PUT 116 116
+PUT 117 117
+PUT 118 118
+PUT 119 119
+PUT 120 120
+PUT 121 121
+PUT 122 122
+PUT 123 123
+PUT 124 124
+PUT 125 125
+PUT 126 126
+PUT 127 127
+PUT 128 128
+PUT 129 129
+PUT 130 130
+PUT 131 131
+PUT 132 132
+PUT 133 133
+PUT 134 134
+PUT 135 135
+PUT 136 136
+PUT 137 137
+PUT 138 138
+PUT 139 139
+PUT 140 140
+PUT 141 141
+PUT 142 142
+PUT 143 143
+PUT 144 144
+PUT 145 145
+PUT 146 146
+PUT 147 147
+PUT 148 148
+PUT 149 149
+PUT 150 150
+PUT 151 151
+PUT 152 152
+PUT 153 153
+PUT 154 154
+PUT 155 155
+PUT 156 156
+PUT 157 157
+PUT 158 158
+PUT 159 159
+PUT 160 160
+PUT 161 161
+PUT 162 162
+PUT 163 163
+PUT 164 164
+PUT 165 165
+PUT 166 166
+PUT 167 167
+PUT 168 168
+PUT 169 169
+PUT 170 170
+PUT 171 171
+PUT 172 172
+PUT 173 173
+PUT 174 174
+PUT 175 175
+PUT 176 176
+PUT 177 177
+PUT 178 178
+PUT 179 179
+PUT 180 180
+PUT 181 181
+PUT 182 182
+PUT 183 183
+PUT 184 184
+PUT 185 185
+PUT 186 186
+PUT 187 187
+PUT 188 188
+PUT 189 189
+PUT 190 190
+PUT 191 191
+PUT 192 192
+PUT 193 193
+PUT 194 194
+PUT 195 195
+PUT 196 196
+PUT 197 197
+PUT 198 198
+PUT 199 199
+PUT 200 200
+PUT 201 201
+PUT 202 202
+PUT 203 203
+PUT 204 204
+PUT 205 205
+PUT 206 206
+PUT 207 207
+PUT 208 208
+PUT 209 209
+PUT 210 210
+PUT 211 211
+PUT 212 212
+PUT 213 213
+PUT 214 214
+PUT 215 215
+PUT 216 216
+PUT 217 217
+PUT 218 218
+PUT 219 219
+PUT 220 220
+PUT 221 221
+PUT 222 222
+PUT 223 223
+PUT 224 224
+PUT 225 225
+PUT 226 226
+PUT 227 227
+PUT 228 228
+PUT 229 229
+PUT 230 230
+PUT 231 231
+PUT 232 232
+PUT 233 233
+PUT 234 234
+PUT 235 235
+PUT 236 236
+PUT 237 237
+PUT 238 238
+PUT 239 239
+PUT 240 240
+PUT 241 241
+PUT 242 242
+PUT 243 243
+PUT 244 244
+PUT 245 245
+PUT 246 246
+PUT 247 247
+PUT 248 248
+PUT 249 249
+PUT 250 250
+PUT 251 251
+PUT 252 252
+PUT 253 253
+PUT 254 254
+PUT 255 255
+PUT 256 256
+GET 1
+GET 2
+GET 3
+GET 4
+GET 5
+GET 6
+GET 7
+GET 8
+GET 9
+GET 10
+GET 11
+GET 12
+GET 13
+GET 14
+GET 15
+GET 16
+GET 17
+GET 18
+GET 19
+GET 20
+GET 21
+GET 22
+GET 23
+GET 24
+GET 25
+GET 26
+GET 27
+GET 28
+GET 29
+GET 30
+GET 31
+GET 32
+GET 33
+GET 34
+GET 35
+GET 36
+GET 37
+GET 38
+GET 39
+GET 40
+GET 41
+GET 42
+GET 43
+GET 44
+GET 45
+GET 46
+GET 47
+GET 48
+GET 49
+GET 50
+GET 51
+GET 52
+GET 53
+GET 54
+GET 55
+GET 56
+GET 57
+GET 58
+GET 59
+GET 60
+GET 61
+GET 62
+GET 63
+GET 64
+GET 65
+GET 66
+GET 67
+GET 68
+GET 69
+GET 70
+GET 71
+GET 72
+GET 73
+GET 74
+GET 75
+GET 76
+GET 77
+GET 78
+GET 79
+GET 80
+GET 81
+GET 82
+GET 83
+GET 84
+GET 85
+GET 86
+GET 87
+GET 88
+GET 89
+GET 90
+GET 91
+GET 92
+GET 93
+GET 94
+GET 95
+GET 96
+GET 97
+GET 98
+GET 99
+GET 100
+GET 101
+GET 102
+GET 103
+GET 104
+GET 105
+GET 106
+GET 107
+GET 108
+GET 109
+GET 110
+GET 111
+GET 112
+GET 113
+GET 114
+GET 115
+GET 116
+GET 117
+GET 118
+GET 119
+GET 120
+GET 121
+GET 122
+GET 123
+GET 124
+GET 125
+GET 126
+GET 127
+GET 128
+GET 129
+GET 130
+GET 131
+GET 132
+GET 133
+GET 134
+GET 135
+GET 136
+GET 137
+GET 138
+GET 139
+GET 140
+GET 141
+GET 142
+GET 143
+GET 144
+GET 145
+GET 146
+GET 147
+GET 148
+GET 149
+GET 150
+GET 151
+GET 152
+GET 153
+GET 154
+GET 155
+GET 156
+GET 157
+GET 158
+GET 159
+GET 160
+GET 161
+GET 162
+GET 163
+GET 164
+GET 165
+GET 166
+GET 167
+GET 168
+GET 169
+GET 170
+GET 171
+GET 172
+GET 173
+GET 174
+GET 175
+GET 176
+GET 177
+GET 178
+GET 179
+GET 180
+GET 181
+GET 182
+GET 183
+GET 184
+GET 185
+GET 186
+GET 187
+GET 188
+GET 189
+GET 190
+GET 191
+GET 192
+GET 193
+GET 194
+GET 195
+GET 196
+GET 197
+GET 198
+GET 199
+GET 200
+GET 201
+GET 202
+GET 203
+GET 204
+GET 205
+GET 206
+GET 207
+GET 208
+GET 209
+GET 210
+GET 211
+GET 212
+GET 213
+GET 214
+GET 215
+GET 216
+GET 217
+GET 218
+GET 219
+GET 220
+GET 221
+GET 222
+GET 223
+GET 224
+GET 225
+GET 226
+GET 227
+GET 228
+GET 229
+GET 230
+GET 231
+GET 232
+GET 233
+GET 234
+GET 235
+GET 236
+GET 237
+GET 238
+GET 239
+GET 240
+GET 241
+GET 242
+GET 243
+GET 244
+GET 245
+GET 246
+GET 247
+GET 248
+GET 249
+GET 250
+GET 251
+GET 252
+GET 253
+GET 254
+GET 255
+GET 256
+PUT 257 257
+PUT 258 258
+PUT 259 259
+PUT 260 260
+PUT 261 261
+PUT 262 262
+PUT 263 263
+PUT 264 264
+PUT 265 265
+PUT 266 266
+PUT 267 267
+PUT 268 268
+PUT 269 269
+PUT 270 270
+PUT 271 271
+PUT 272 272
+PUT 273 273
+PUT 274 274
+PUT 275 275
+PUT 276 276
+PUT 277 277
+PUT 278 278
+PUT 279 279
+PUT 280 280
+PUT 281 281
+PUT 282 282
+PUT 283 283
+PUT 284 284
+PUT 285 285
+PUT 286 286
+PUT 287 287
+PUT 288 288
+PUT 289 289
+PUT 290 290
+PUT 291 291
+PUT 292 292
+PUT 293 293
+PUT 294 294
+PUT 295 295
+PUT 296 296
+PUT 297 297
+PUT 298 298
+PUT 299 299
+PUT 300 300
+PUT 301 301
+PUT 302 302
+PUT 303 303
+PUT 304 304
+PUT 305 305
+PUT 306 306
+PUT 307 307
+PUT 308 308
+PUT 309 309
+PUT 310 310
+PUT 311 311
+PUT 312 312
+PUT 313 313
+PUT 314 314
+PUT 315 315
+PUT 316 316
+PUT 317 317
+PUT 318 318
+PUT 319 319
+PUT 320 320
+PUT 321 321
+PUT 322 322
+PUT 323 323
+PUT 324 324
+PUT 325 325
+PUT 326 326
+PUT 327 327
+PUT 328 328
+PUT 329 329
+PUT 330 330
+PUT 331 331
+PUT 332 332
+PUT 333 333
+PUT 334 334
+PUT 335 335
+PUT 336 336
+PUT 337 337
+PUT 338 338
+PUT 339 339
+PUT 340 340
+PUT 341 341
+PUT 342 342
+PUT 343 343
+PUT 344 344
+PUT 345 345
+PUT 346 346
+PUT 347 347
+PUT 348 348
+PUT 349 349
+PUT 350 350
+PUT 351 351
+PUT 352 352
+PUT 353 353
+PUT 354 354
+PUT 355 355
+PUT 356 356
+PUT 357 357
+PUT 358 358
+PUT 359 359
+PUT 360 360
+PUT 361 361
+PUT 362 362
+PUT 363 363
+PUT 364 364
+PUT 365 365
+PUT 366 366
+PUT 367 367
+PUT 368 368
+PUT 369 369
+PUT 370 370
+PUT 371 371
+PUT 372 372
+PUT 373 373
+PUT 374 374
+PUT 375 375
+PUT 376 376
+PUT 377 377
+PUT 378 378
+PUT 379 379
+PUT 380 380
+PUT 381 381
+PUT 382 382
+PUT 383 383
+PUT 384 384
+PUT 385 358
+PUT 386 386
+PUT 387 387
+PUT 388 388
+PUT 389 389
+PUT 390 390
+PUT 391 391
+PUT 392 392
+PUT 393 393
+PUT 394 394
+PUT 395 395
+PUT 396 396
+PUT 397 397
+PUT 398 398
+PUT 399 399
+PUT 400 400
+PUT 401 401
+PUT 402 402
+PUT 403 403
+PUT 404 404
+PUT 405 405
+PUT 406 406
+PUT 407 407
+PUT 408 408
+PUT 409 409
+PUT 410 410
+PUT 411 411
+PUT 412 412
+PUT 413 413
+PUT 414 414
+PUT 415 415
+PUT 416 416
+PUT 417 417
+PUT 418 418
+PUT 419 419
+PUT 420 420
+PUT 421 421
+PUT 422 422
+PUT 423 423
+PUT 424 424
+PUT 425 425
+PUT 426 426
+PUT 427 427
+PUT 428 428
+PUT 429 429
+PUT 430 430
+PUT 431 431
+PUT 432 432
+PUT 433 433
+PUT 434 434
+PUT 435 435
+PUT 436 436
+PUT 437 437
+PUT 438 438
+PUT 439 439
+PUT 440 440
+PUT 441 441
+PUT 442 442
+PUT 443 443
+PUT 444 444
+PUT 445 445
+PUT 446 446
+PUT 447 447
+PUT 448 448
+PUT 449 449
+PUT 450 450
+PUT 451 451
+PUT 452 452
+PUT 453 453
+PUT 454 454
+PUT 455 455
+PUT 456 456
+PUT 457 457
+PUT 458 458
+PUT 459 459
+PUT 460 460
+PUT 461 461
+PUT 462 462
+PUT 463 463
+PUT 464 464
+PUT 465 465
+PUT 466 466
+PUT 467 467
+PUT 468 468
+PUT 469 469
+PUT 470 470
+PUT 471 471
+PUT 472 472
+PUT 473 473
+PUT 474 474
+PUT 475 475
+PUT 476 476
+PUT 477 477
+PUT 478 478
+PUT 479 479
+PUT 480 480
+PUT 481 481
+PUT 482 482
+PUT 483 483
+PUT 484 484
+PUT 485 485
+PUT 486 486
+PUT 487 487
+PUT 488 488
+PUT 489 489
+PUT 490 490
+PUT 491 491
+PUT 492 492
+PUT 493 493
+PUT 494 494
+PUT 495 495
+PUT 496 496
+PUT 497 497
+PUT 498 498
+PUT 499 499
+PUT 500 500
+PUT 501 501
+PUT 502 502
+PUT 503 503
+PUT 504 504
+PUT 505 505
+PUT 506 506
+PUT 507 507
+PUT 508 508
+PUT 509 509
+PUT 510 510
+PUT 511 511
+PUT 512 512
+PUT 513 513
+FREE
\ No newline at end of file
diff --git a/tests/cache/cache_lfu_replace.expect b/tests/cache/cache_lfu_replace.expect
new file mode 100644
index 000000000..00f32a3fa
--- /dev/null
+++ b/tests/cache/cache_lfu_replace.expect
@@ -0,0 +1,515 @@
+NEW CACHE
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+30
+31
+32
+33
+34
+35
+36
+37
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+97
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+127
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+133
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+138
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+141
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+147
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+154
+155
+156
+157
+158
+159
+160
+161
+162
+163
+164
+165
+166
+167
+168
+169
+170
+171
+172
+173
+174
+175
+176
+177
+178
+179
+180
+181
+182
+183
+184
+185
+186
+187
+188
+189
+190
+191
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+193
+194
+195
+196
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+199
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+215
+216
+217
+218
+219
+220
+221
+222
+223
+224
+225
+226
+227
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+229
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+280
+281
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+284
+285
+286
+287
+288
+289
+290
+291
+292
+293
+294
+295
+296
+297
+298
+299
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+462
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+470
+471
+472
+473
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+490
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+492
+493
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+495
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+497
+498
+499
+500
+501
+502
+503
+504
+505
+506
+507
+508
+509
+510
+511
+512
+REPLACE 1
+FREE CACHE
diff --git a/tests/cache/cache_lfu_replace.in b/tests/cache/cache_lfu_replace.in
new file mode 100644
index 000000000..2fc4c3a82
--- /dev/null
+++ b/tests/cache/cache_lfu_replace.in
@@ -0,0 +1,1027 @@
+NEW
+PUT 1 1
+PUT 2 2
+PUT 3 3
+PUT 4 4
+PUT 5 5
+PUT 6 6
+PUT 7 7
+PUT 8 8
+PUT 9 9
+PUT 10 10
+PUT 11 11
+PUT 12 12
+PUT 13 13
+PUT 14 14
+PUT 15 15
+PUT 16 16
+PUT 17 17
+PUT 18 18
+PUT 19 19
+PUT 20 20
+PUT 21 21
+PUT 22 22
+PUT 23 23
+PUT 24 24
+PUT 25 25
+PUT 26 26
+PUT 27 27
+PUT 28 28
+PUT 29 29
+PUT 30 30
+PUT 31 31
+PUT 32 32
+PUT 33 33
+PUT 34 34
+PUT 35 35
+PUT 36 36
+PUT 37 37
+PUT 38 38
+PUT 39 39
+PUT 40 40
+PUT 41 41
+PUT 42 42
+PUT 43 43
+PUT 44 44
+PUT 45 45
+PUT 46 46
+PUT 47 47
+PUT 48 48
+PUT 49 49
+PUT 50 50
+PUT 51 51
+PUT 52 52
+PUT 53 53
+PUT 54 54
+PUT 55 55
+PUT 56 56
+PUT 57 57
+PUT 58 58
+PUT 59 59
+PUT 60 60
+PUT 61 61
+PUT 62 62
+PUT 63 63
+PUT 64 64
+PUT 65 65
+PUT 66 66
+PUT 67 67
+PUT 68 68
+PUT 69 69
+PUT 70 70
+PUT 71 71
+PUT 72 72
+PUT 73 73
+PUT 74 74
+PUT 75 75
+PUT 76 76
+PUT 77 77
+PUT 78 78
+PUT 79 79
+PUT 80 80
+PUT 81 81
+PUT 82 82
+PUT 83 83
+PUT 84 84
+PUT 85 85
+PUT 86 86
+PUT 87 87
+PUT 88 88
+PUT 89 89
+PUT 90 90
+PUT 91 91
+PUT 92 92
+PUT 93 93
+PUT 94 94
+PUT 95 95
+PUT 96 96
+PUT 97 97
+PUT 98 98
+PUT 99 99
+PUT 100 100
+PUT 101 101
+PUT 102 102
+PUT 103 103
+PUT 104 104
+PUT 105 105
+PUT 106 106
+PUT 107 107
+PUT 108 108
+PUT 109 109
+PUT 110 110
+PUT 111 111
+PUT 112 112
+PUT 113 113
+PUT 114 114
+PUT 115 115
+PUT 116 116
+PUT 117 117
+PUT 118 118
+PUT 119 119
+PUT 120 120
+PUT 121 121
+PUT 122 122
+PUT 123 123
+PUT 124 124
+PUT 125 125
+PUT 126 126
+PUT 127 127
+PUT 128 128
+GET 1
+GET 2
+GET 3
+GET 4
+GET 5
+GET 6
+GET 7
+GET 8
+GET 9
+GET 10
+GET 11
+GET 12
+GET 13
+GET 14
+GET 15
+GET 16
+GET 17
+GET 18
+GET 19
+GET 20
+GET 21
+GET 22
+GET 23
+GET 24
+GET 25
+GET 26
+GET 27
+GET 28
+GET 29
+GET 30
+GET 31
+GET 32
+GET 33
+GET 34
+GET 35
+GET 36
+GET 37
+GET 38
+GET 39
+GET 40
+GET 41
+GET 42
+GET 43
+GET 44
+GET 45
+GET 46
+GET 47
+GET 48
+GET 49
+GET 50
+GET 51
+GET 52
+GET 53
+GET 54
+GET 55
+GET 56
+GET 57
+GET 58
+GET 59
+GET 60
+GET 61
+GET 62
+GET 63
+GET 64
+GET 65
+GET 66
+GET 67
+GET 68
+GET 69
+GET 70
+GET 71
+GET 72
+GET 73
+GET 74
+GET 75
+GET 76
+GET 77
+GET 78
+GET 79
+GET 80
+GET 81
+GET 82
+GET 83
+GET 84
+GET 85
+GET 86
+GET 87
+GET 88
+GET 89
+GET 90
+GET 91
+GET 92
+GET 93
+GET 94
+GET 95
+GET 96
+GET 97
+GET 98
+GET 99
+GET 100
+GET 101
+GET 102
+GET 103
+GET 104
+GET 105
+GET 106
+GET 107
+GET 108
+GET 109
+GET 110
+GET 111
+GET 112
+GET 113
+GET 114
+GET 115
+GET 116
+GET 117
+GET 118
+GET 119
+GET 120
+GET 121
+GET 122
+GET 123
+GET 124
+GET 125
+GET 126
+GET 127
+GET 128
+PUT 129 129
+PUT 130 130
+PUT 131 131
+PUT 132 132
+PUT 133 133
+PUT 134 134
+PUT 135 135
+PUT 136 136
+PUT 137 137
+PUT 138 138
+PUT 139 139
+PUT 140 140
+PUT 141 141
+PUT 142 142
+PUT 143 143
+PUT 144 144
+PUT 145 145
+PUT 146 146
+PUT 147 147
+PUT 148 148
+PUT 149 149
+PUT 150 150
+PUT 151 151
+PUT 152 152
+PUT 153 153
+PUT 154 154
+PUT 155 155
+PUT 156 156
+PUT 157 157
+PUT 158 158
+PUT 159 159
+PUT 160 160
+PUT 161 161
+PUT 162 162
+PUT 163 163
+PUT 164 164
+PUT 165 165
+PUT 166 166
+PUT 167 167
+PUT 168 168
+PUT 169 169
+PUT 170 170
+PUT 171 171
+PUT 172 172
+PUT 173 173
+PUT 174 174
+PUT 175 175
+PUT 176 176
+PUT 177 177
+PUT 178 178
+PUT 179 179
+PUT 180 180
+PUT 181 181
+PUT 182 182
+PUT 183 183
+PUT 184 184
+PUT 185 185
+PUT 186 186
+PUT 187 187
+PUT 188 188
+PUT 189 189
+PUT 190 190
+PUT 191 191
+PUT 192 192
+PUT 193 193
+PUT 194 194
+PUT 195 195
+PUT 196 196
+PUT 197 197
+PUT 198 198
+PUT 199 199
+PUT 200 200
+PUT 201 201
+PUT 202 202
+PUT 203 203
+PUT 204 204
+PUT 205 205
+PUT 206 206
+PUT 207 207
+PUT 208 208
+PUT 209 209
+PUT 210 210
+PUT 211 211
+PUT 212 212
+PUT 213 213
+PUT 214 214
+PUT 215 215
+PUT 216 216
+PUT 217 217
+PUT 218 218
+PUT 219 219
+PUT 220 220
+PUT 221 221
+PUT 222 222
+PUT 223 223
+PUT 224 224
+PUT 225 225
+PUT 226 226
+PUT 227 227
+PUT 228 228
+PUT 229 229
+PUT 230 230
+PUT 231 231
+PUT 232 232
+PUT 233 233
+PUT 234 234
+PUT 235 235
+PUT 236 236
+PUT 237 237
+PUT 238 238
+PUT 239 239
+PUT 240 240
+PUT 241 241
+PUT 242 242
+PUT 243 243
+PUT 244 244
+PUT 245 245
+PUT 246 246
+PUT 247 247
+PUT 248 248
+PUT 249 249
+PUT 250 250
+PUT 251 251
+PUT 252 252
+PUT 253 253
+PUT 254 254
+PUT 255 255
+PUT 256 256
+GET 129
+GET 130
+GET 131
+GET 132
+GET 133
+GET 134
+GET 135
+GET 136
+GET 137
+GET 138
+GET 139
+GET 140
+GET 141
+GET 142
+GET 143
+GET 144
+GET 145
+GET 146
+GET 147
+GET 148
+GET 149
+GET 150
+GET 151
+GET 152
+GET 153
+GET 154
+GET 155
+GET 156
+GET 157
+GET 158
+GET 159
+GET 160
+GET 161
+GET 162
+GET 163
+GET 164
+GET 165
+GET 166
+GET 167
+GET 168
+GET 169
+GET 170
+GET 171
+GET 172
+GET 173
+GET 174
+GET 175
+GET 176
+GET 177
+GET 178
+GET 179
+GET 180
+GET 181
+GET 182
+GET 183
+GET 184
+GET 185
+GET 186
+GET 187
+GET 188
+GET 189
+GET 190
+GET 191
+GET 192
+GET 193
+GET 194
+GET 195
+GET 196
+GET 197
+GET 198
+GET 199
+GET 200
+GET 201
+GET 202
+GET 203
+GET 204
+GET 205
+GET 206
+GET 207
+GET 208
+GET 209
+GET 210
+GET 211
+GET 212
+GET 213
+GET 214
+GET 215
+GET 216
+GET 217
+GET 218
+GET 219
+GET 220
+GET 221
+GET 222
+GET 223
+GET 224
+GET 225
+GET 226
+GET 227
+GET 228
+GET 229
+GET 230
+GET 231
+GET 232
+GET 233
+GET 234
+GET 235
+GET 236
+GET 237
+GET 238
+GET 239
+GET 240
+GET 241
+GET 242
+GET 243
+GET 244
+GET 245
+GET 246
+GET 247
+GET 248
+GET 249
+GET 250
+GET 251
+GET 252
+GET 253
+GET 254
+GET 255
+GET 256
+PUT 257 257
+PUT 258 258
+PUT 259 259
+PUT 260 260
+PUT 261 261
+PUT 262 262
+PUT 263 263
+PUT 264 264
+PUT 265 265
+PUT 266 266
+PUT 267 267
+PUT 268 268
+PUT 269 269
+PUT 270 270
+PUT 271 271
+PUT 272 272
+PUT 273 273
+PUT 274 274
+PUT 275 275
+PUT 276 276
+PUT 277 277
+PUT 278 278
+PUT 279 279
+PUT 280 280
+PUT 281 281
+PUT 282 282
+PUT 283 283
+PUT 284 284
+PUT 285 285
+PUT 286 286
+PUT 287 287
+PUT 288 288
+PUT 289 289
+PUT 290 290
+PUT 291 291
+PUT 292 292
+PUT 293 293
+PUT 294 294
+PUT 295 295
+PUT 296 296
+PUT 297 297
+PUT 298 298
+PUT 299 299
+PUT 300 300
+PUT 301 301
+PUT 302 302
+PUT 303 303
+PUT 304 304
+PUT 305 305
+PUT 306 306
+PUT 307 307
+PUT 308 308
+PUT 309 309
+PUT 310 310
+PUT 311 311
+PUT 312 312
+PUT 313 313
+PUT 314 314
+PUT 315 315
+PUT 316 316
+PUT 317 317
+PUT 318 318
+PUT 319 319
+PUT 320 320
+PUT 321 321
+PUT 322 322
+PUT 323 323
+PUT 324 324
+PUT 325 325
+PUT 326 326
+PUT 327 327
+PUT 328 328
+PUT 329 329
+PUT 330 330
+PUT 331 331
+PUT 332 332
+PUT 333 333
+PUT 334 334
+PUT 335 335
+PUT 336 336
+PUT 337 337
+PUT 338 338
+PUT 339 339
+PUT 340 340
+PUT 341 341
+PUT 342 342
+PUT 343 343
+PUT 344 344
+PUT 345 345
+PUT 346 346
+PUT 347 347
+PUT 348 348
+PUT 349 349
+PUT 350 350
+PUT 351 351
+PUT 352 352
+PUT 353 353
+PUT 354 354
+PUT 355 355
+PUT 356 356
+PUT 357 357
+PUT 358 358
+PUT 359 359
+PUT 360 360
+PUT 361 361
+PUT 362 362
+PUT 363 363
+PUT 364 364
+PUT 365 365
+PUT 366 366
+PUT 367 367
+PUT 368 368
+PUT 369 369
+PUT 370 370
+PUT 371 371
+PUT 372 372
+PUT 373 373
+PUT 374 374
+PUT 375 375
+PUT 376 376
+PUT 377 377
+PUT 378 378
+PUT 379 379
+PUT 380 380
+PUT 381 381
+PUT 382 382
+PUT 383 383
+PUT 384 384
+GET 257
+GET 258
+GET 259
+GET 260
+GET 261
+GET 262
+GET 263
+GET 264
+GET 265
+GET 266
+GET 267
+GET 268
+GET 269
+GET 270
+GET 271
+GET 272
+GET 273
+GET 274
+GET 275
+GET 276
+GET 277
+GET 278
+GET 279
+GET 280
+GET 281
+GET 282
+GET 283
+GET 284
+GET 285
+GET 286
+GET 287
+GET 288
+GET 289
+GET 290
+GET 291
+GET 292
+GET 293
+GET 294
+GET 295
+GET 296
+GET 297
+GET 298
+GET 299
+GET 300
+GET 301
+GET 302
+GET 303
+GET 304
+GET 305
+GET 306
+GET 307
+GET 308
+GET 309
+GET 310
+GET 311
+GET 312
+GET 313
+GET 314
+GET 315
+GET 316
+GET 317
+GET 318
+GET 319
+GET 320
+GET 321
+GET 322
+GET 323
+GET 324
+GET 325
+GET 326
+GET 327
+GET 328
+GET 329
+GET 330
+GET 331
+GET 332
+GET 333
+GET 334
+GET 335
+GET 336
+GET 337
+GET 338
+GET 339
+GET 340
+GET 341
+GET 342
+GET 343
+GET 344
+GET 345
+GET 346
+GET 347
+GET 348
+GET 349
+GET 350
+GET 351
+GET 352
+GET 353
+GET 354
+GET 355
+GET 356
+GET 357
+GET 358
+GET 359
+GET 360
+GET 361
+GET 362
+GET 363
+GET 364
+GET 365
+GET 366
+GET 367
+GET 368
+GET 369
+GET 370
+GET 371
+GET 372
+GET 373
+GET 374
+GET 375
+GET 376
+GET 377
+GET 378
+GET 379
+GET 380
+GET 381
+GET 382
+GET 383
+GET 384
+PUT 385 385
+PUT 386 386
+PUT 387 387
+PUT 388 388
+PUT 389 389
+PUT 390 390
+PUT 391 391
+PUT 392 392
+PUT 393 393
+PUT 394 394
+PUT 395 395
+PUT 396 396
+PUT 397 397
+PUT 398 398
+PUT 399 399
+PUT 400 400
+PUT 401 401
+PUT 402 402
+PUT 403 403
+PUT 404 404
+PUT 405 405
+PUT 406 406
+PUT 407 407
+PUT 408 408
+PUT 409 409
+PUT 410 410
+PUT 411 411
+PUT 412 412
+PUT 413 413
+PUT 414 414
+PUT 415 415
+PUT 416 416
+PUT 417 417
+PUT 418 418
+PUT 419 419
+PUT 420 420
+PUT 421 421
+PUT 422 422
+PUT 423 423
+PUT 424 424
+PUT 425 425
+PUT 426 426
+PUT 427 427
+PUT 428 428
+PUT 429 429
+PUT 430 430
+PUT 431 431
+PUT 432 432
+PUT 433 433
+PUT 434 434
+PUT 435 435
+PUT 436 436
+PUT 437 437
+PUT 438 438
+PUT 439 439
+PUT 440 440
+PUT 441 441
+PUT 442 442
+PUT 443 443
+PUT 444 444
+PUT 445 445
+PUT 446 446
+PUT 447 447
+PUT 448 448
+PUT 449 449
+PUT 450 450
+PUT 451 451
+PUT 452 452
+PUT 453 453
+PUT 454 454
+PUT 455 455
+PUT 456 456
+PUT 457 457
+PUT 458 458
+PUT 459 459
+PUT 460 460
+PUT 461 461
+PUT 462 462
+PUT 463 463
+PUT 464 464
+PUT 465 465
+PUT 466 466
+PUT 467 467
+PUT 468 468
+PUT 469 469
+PUT 470 470
+PUT 471 471
+PUT 472 472
+PUT 473 473
+PUT 474 474
+PUT 475 475
+PUT 476 476
+PUT 477 477
+PUT 478 478
+PUT 479 479
+PUT 480 480
+PUT 481 481
+PUT 482 482
+PUT 483 483
+PUT 484 484
+PUT 485 485
+PUT 486 486
+PUT 487 487
+PUT 488 488
+PUT 489 489
+PUT 490 490
+PUT 491 491
+PUT 492 492
+PUT 493 493
+PUT 494 494
+PUT 495 495
+PUT 496 496
+PUT 497 497
+PUT 498 498
+PUT 499 499
+PUT 500 500
+PUT 501 501
+PUT 502 502
+PUT 503 503
+PUT 504 504
+PUT 505 505
+PUT 506 506
+PUT 507 507
+PUT 508 508
+PUT 509 509
+PUT 510 510
+PUT 511 511
+PUT 512 512
+GET 385
+GET 386
+GET 387
+GET 388
+GET 389
+GET 390
+GET 391
+GET 392
+GET 393
+GET 394
+GET 395
+GET 396
+GET 397
+GET 398
+GET 399
+GET 400
+GET 401
+GET 402
+GET 403
+GET 404
+GET 405
+GET 406
+GET 407
+GET 408
+GET 409
+GET 410
+GET 411
+GET 412
+GET 413
+GET 414
+GET 415
+GET 416
+GET 417
+GET 418
+GET 419
+GET 420
+GET 421
+GET 422
+GET 423
+GET 424
+GET 425
+GET 426
+GET 427
+GET 428
+GET 429
+GET 430
+GET 431
+GET 432
+GET 433
+GET 434
+GET 435
+GET 436
+GET 437
+GET 438
+GET 439
+GET 440
+GET 441
+GET 442
+GET 443
+GET 444
+GET 445
+GET 446
+GET 447
+GET 448
+GET 449
+GET 450
+GET 451
+GET 452
+GET 453
+GET 454
+GET 455
+GET 456
+GET 457
+GET 458
+GET 459
+GET 460
+GET 461
+GET 462
+GET 463
+GET 464
+GET 465
+GET 466
+GET 467
+GET 468
+GET 469
+GET 470
+GET 471
+GET 472
+GET 473
+GET 474
+GET 475
+GET 476
+GET 477
+GET 478
+GET 479
+GET 480
+GET 481
+GET 482
+GET 483
+GET 484
+GET 485
+GET 486
+GET 487
+GET 488
+GET 489
+GET 490
+GET 491
+GET 492
+GET 493
+GET 494
+GET 495
+GET 496
+GET 497
+GET 498
+GET 499
+GET 500
+GET 501
+GET 502
+GET 503
+GET 504
+GET 505
+GET 506
+GET 507
+GET 508
+GET 509
+GET 510
+GET 511
+GET 512
+PUT 513 513
+FREE
\ No newline at end of file
diff --git a/tests/cache/cache_lru_replace.expect b/tests/cache/cache_lru_replace.expect
new file mode 100644
index 000000000..eae319247
--- /dev/null
+++ b/tests/cache/cache_lru_replace.expect
@@ -0,0 +1,3 @@
+NEW CACHE
+REPLACE 1
+FREE CACHE
diff --git a/tests/cache/cache_lru_replace.in b/tests/cache/cache_lru_replace.in
new file mode 100644
index 000000000..a89d135ad
--- /dev/null
+++ b/tests/cache/cache_lru_replace.in
@@ -0,0 +1,259 @@
+NEW
+PUT 1 1
+PUT 2 2
+PUT 3 3
+PUT 4 4
+PUT 5 5
+PUT 6 6
+PUT 7 7
+PUT 8 8
+PUT 9 9
+PUT 10 10
+PUT 11 11
+PUT 12 12
+PUT 13 13
+PUT 14 14
+PUT 15 15
+PUT 16 16
+PUT 17 17
+PUT 18 18
+PUT 19 19
+PUT 20 20
+PUT 21 21
+PUT 22 22
+PUT 23 23
+PUT 24 24
+PUT 25 25
+PUT 26 26
+PUT 27 27
+PUT 28 28
+PUT 29 29
+PUT 30 30
+PUT 31 31
+PUT 32 32
+PUT 33 33
+PUT 34 34
+PUT 35 35
+PUT 36 36
+PUT 37 37
+PUT 38 38
+PUT 39 39
+PUT 40 40
+PUT 41 41
+PUT 42 42
+PUT 43 43
+PUT 44 44
+PUT 45 45
+PUT 46 46
+PUT 47 47
+PUT 48 48
+PUT 49 49
+PUT 50 50
+PUT 51 51
+PUT 52 52
+PUT 53 53
+PUT 54 54
+PUT 55 55
+PUT 56 56
+PUT 57 57
+PUT 58 58
+PUT 59 59
+PUT 60 60
+PUT 61 61
+PUT 62 62
+PUT 63 63
+PUT 64 64
+PUT 65 65
+PUT 66 66
+PUT 67 67
+PUT 68 68
+PUT 69 69
+PUT 70 70
+PUT 71 71
+PUT 72 72
+PUT 73 73
+PUT 74 74
+PUT 75 75
+PUT 76 76
+PUT 77 77
+PUT 78 78
+PUT 79 79
+PUT 80 80
+PUT 81 81
+PUT 82 82
+PUT 83 83
+PUT 84 84
+PUT 85 85
+PUT 86 86
+PUT 87 87
+PUT 88 88
+PUT 89 89
+PUT 90 90
+PUT 91 91
+PUT 92 92
+PUT 93 93
+PUT 94 94
+PUT 95 95
+PUT 96 96
+PUT 97 97
+PUT 98 98
+PUT 99 99
+PUT 100 100
+PUT 101 101
+PUT 102 102
+PUT 103 103
+PUT 104 104
+PUT 105 105
+PUT 106 106
+PUT 107 107
+PUT 108 108
+PUT 109 109
+PUT 110 110
+PUT 111 111
+PUT 112 112
+PUT 113 113
+PUT 114 114
+PUT 115 115
+PUT 116 116
+PUT 117 117
+PUT 118 118
+PUT 119 119
+PUT 120 120
+PUT 121 121
+PUT 122 122
+PUT 123 123
+PUT 124 124
+PUT 125 125
+PUT 126 126
+PUT 127 127
+PUT 128 128
+PUT 129 129
+PUT 130 130
+PUT 131 131
+PUT 132 132
+PUT 133 133
+PUT 134 134
+PUT 135 135
+PUT 136 136
+PUT 137 137
+PUT 138 138
+PUT 139 139
+PUT 140 140
+PUT 141 141
+PUT 142 142
+PUT 143 143
+PUT 144 144
+PUT 145 145
+PUT 146 146
+PUT 147 147
+PUT 148 148
+PUT 149 149
+PUT 150 150
+PUT 151 151
+PUT 152 152
+PUT 153 153
+PUT 154 154
+PUT 155 155
+PUT 156 156
+PUT 157 157
+PUT 158 158
+PUT 159 159
+PUT 160 160
+PUT 161 161
+PUT 162 162
+PUT 163 163
+PUT 164 164
+PUT 165 165
+PUT 166 166
+PUT 167 167
+PUT 168 168
+PUT 169 169
+PUT 170 170
+PUT 171 171
+PUT 172 172
+PUT 173 173
+PUT 174 174
+PUT 175 175
+PUT 176 176
+PUT 177 177
+PUT 178 178
+PUT 179 179
+PUT 180 180
+PUT 181 181
+PUT 182 182
+PUT 183 183
+PUT 184 184
+PUT 185 185
+PUT 186 186
+PUT 187 187
+PUT 188 188
+PUT 189 189
+PUT 190 190
+PUT 191 191
+PUT 192 192
+PUT 193 193
+PUT 194 194
+PUT 195 195
+PUT 196 196
+PUT 197 197
+PUT 198 198
+PUT 199 199
+PUT 200 200
+PUT 201 201
+PUT 202 202
+PUT 203 203
+PUT 204 204
+PUT 205 205
+PUT 206 206
+PUT 207 207
+PUT 208 208
+PUT 209 209
+PUT 210 210
+PUT 211 211
+PUT 212 212
+PUT 213 213
+PUT 214 214
+PUT 215 215
+PUT 216 216
+PUT 217 217
+PUT 218 218
+PUT 219 219
+PUT 220 220
+PUT 221 221
+PUT 222 222
+PUT 223 223
+PUT 224 224
+PUT 225 225
+PUT 226 226
+PUT 227 227
+PUT 228 228
+PUT 229 229
+PUT 230 230
+PUT 231 231
+PUT 232 232
+PUT 233 233
+PUT 234 234
+PUT 235 235
+PUT 236 236
+PUT 237 237
+PUT 238 238
+PUT 239 239
+PUT 240 240
+PUT 241 241
+PUT 242 242
+PUT 243 243
+PUT 244 244
+PUT 245 245
+PUT 246 246
+PUT 247 247
+PUT 248 248
+PUT 249 249
+PUT 250 250
+PUT 251 251
+PUT 252 252
+PUT 253 253
+PUT 254 254
+PUT 255 255
+PUT 256 256
+PUT 257 257
+FREE
\ No newline at end of file
diff --git a/tests/cache/cache_new.expect b/tests/cache/cache_new.expect
new file mode 100644
index 000000000..134d8b8e5
--- /dev/null
+++ b/tests/cache/cache_new.expect
@@ -0,0 +1,2 @@
+NEW CACHE
+FREE CACHE
diff --git a/tests/cache/cache_new.in b/tests/cache/cache_new.in
new file mode 100644
index 000000000..f3603c17f
--- /dev/null
+++ b/tests/cache/cache_new.in
@@ -0,0 +1,2 @@
+NEW
+FREE
\ No newline at end of file
diff --git a/tests/cache/cache_put.expect b/tests/cache/cache_put.expect
new file mode 100644
index 000000000..eae319247
--- /dev/null
+++ b/tests/cache/cache_put.expect
@@ -0,0 +1,3 @@
+NEW CACHE
+REPLACE 1
+FREE CACHE
diff --git a/tests/cache/cache_put.in b/tests/cache/cache_put.in
new file mode 100644
index 000000000..a89d135ad
--- /dev/null
+++ b/tests/cache/cache_put.in
@@ -0,0 +1,259 @@
+NEW
+PUT 1 1
+PUT 2 2
+PUT 3 3
+PUT 4 4
+PUT 5 5
+PUT 6 6
+PUT 7 7
+PUT 8 8
+PUT 9 9
+PUT 10 10
+PUT 11 11
+PUT 12 12
+PUT 13 13
+PUT 14 14
+PUT 15 15
+PUT 16 16
+PUT 17 17
+PUT 18 18
+PUT 19 19
+PUT 20 20
+PUT 21 21
+PUT 22 22
+PUT 23 23
+PUT 24 24
+PUT 25 25
+PUT 26 26
+PUT 27 27
+PUT 28 28
+PUT 29 29
+PUT 30 30
+PUT 31 31
+PUT 32 32
+PUT 33 33
+PUT 34 34
+PUT 35 35
+PUT 36 36
+PUT 37 37
+PUT 38 38
+PUT 39 39
+PUT 40 40
+PUT 41 41
+PUT 42 42
+PUT 43 43
+PUT 44 44
+PUT 45 45
+PUT 46 46
+PUT 47 47
+PUT 48 48
+PUT 49 49
+PUT 50 50
+PUT 51 51
+PUT 52 52
+PUT 53 53
+PUT 54 54
+PUT 55 55
+PUT 56 56
+PUT 57 57
+PUT 58 58
+PUT 59 59
+PUT 60 60
+PUT 61 61
+PUT 62 62
+PUT 63 63
+PUT 64 64
+PUT 65 65
+PUT 66 66
+PUT 67 67
+PUT 68 68
+PUT 69 69
+PUT 70 70
+PUT 71 71
+PUT 72 72
+PUT 73 73
+PUT 74 74
+PUT 75 75
+PUT 76 76
+PUT 77 77
+PUT 78 78
+PUT 79 79
+PUT 80 80
+PUT 81 81
+PUT 82 82
+PUT 83 83
+PUT 84 84
+PUT 85 85
+PUT 86 86
+PUT 87 87
+PUT 88 88
+PUT 89 89
+PUT 90 90
+PUT 91 91
+PUT 92 92
+PUT 93 93
+PUT 94 94
+PUT 95 95
+PUT 96 96
+PUT 97 97
+PUT 98 98
+PUT 99 99
+PUT 100 100
+PUT 101 101
+PUT 102 102
+PUT 103 103
+PUT 104 104
+PUT 105 105
+PUT 106 106
+PUT 107 107
+PUT 108 108
+PUT 109 109
+PUT 110 110
+PUT 111 111
+PUT 112 112
+PUT 113 113
+PUT 114 114
+PUT 115 115
+PUT 116 116
+PUT 117 117
+PUT 118 118
+PUT 119 119
+PUT 120 120
+PUT 121 121
+PUT 122 122
+PUT 123 123
+PUT 124 124
+PUT 125 125
+PUT 126 126
+PUT 127 127
+PUT 128 128
+PUT 129 129
+PUT 130 130
+PUT 131 131
+PUT 132 132
+PUT 133 133
+PUT 134 134
+PUT 135 135
+PUT 136 136
+PUT 137 137
+PUT 138 138
+PUT 139 139
+PUT 140 140
+PUT 141 141
+PUT 142 142
+PUT 143 143
+PUT 144 144
+PUT 145 145
+PUT 146 146
+PUT 147 147
+PUT 148 148
+PUT 149 149
+PUT 150 150
+PUT 151 151
+PUT 152 152
+PUT 153 153
+PUT 154 154
+PUT 155 155
+PUT 156 156
+PUT 157 157
+PUT 158 158
+PUT 159 159
+PUT 160 160
+PUT 161 161
+PUT 162 162
+PUT 163 163
+PUT 164 164
+PUT 165 165
+PUT 166 166
+PUT 167 167
+PUT 168 168
+PUT 169 169
+PUT 170 170
+PUT 171 171
+PUT 172 172
+PUT 173 173
+PUT 174 174
+PUT 175 175
+PUT 176 176
+PUT 177 177
+PUT 178 178
+PUT 179 179
+PUT 180 180
+PUT 181 181
+PUT 182 182
+PUT 183 183
+PUT 184 184
+PUT 185 185
+PUT 186 186
+PUT 187 187
+PUT 188 188
+PUT 189 189
+PUT 190 190
+PUT 191 191
+PUT 192 192
+PUT 193 193
+PUT 194 194
+PUT 195 195
+PUT 196 196
+PUT 197 197
+PUT 198 198
+PUT 199 199
+PUT 200 200
+PUT 201 201
+PUT 202 202
+PUT 203 203
+PUT 204 204
+PUT 205 205
+PUT 206 206
+PUT 207 207
+PUT 208 208
+PUT 209 209
+PUT 210 210
+PUT 211 211
+PUT 212 212
+PUT 213 213
+PUT 214 214
+PUT 215 215
+PUT 216 216
+PUT 217 217
+PUT 218 218
+PUT 219 219
+PUT 220 220
+PUT 221 221
+PUT 222 222
+PUT 223 223
+PUT 224 224
+PUT 225 225
+PUT 226 226
+PUT 227 227
+PUT 228 228
+PUT 229 229
+PUT 230 230
+PUT 231 231
+PUT 232 232
+PUT 233 233
+PUT 234 234
+PUT 235 235
+PUT 236 236
+PUT 237 237
+PUT 238 238
+PUT 239 239
+PUT 240 240
+PUT 241 241
+PUT 242 242
+PUT 243 243
+PUT 244 244
+PUT 245 245
+PUT 246 246
+PUT 247 247
+PUT 248 248
+PUT 249 249
+PUT 250 250
+PUT 251 251
+PUT 252 252
+PUT 253 253
+PUT 254 254
+PUT 255 255
+PUT 256 256
+PUT 257 257
+FREE
\ No newline at end of file
diff --git a/tests/cache/test_cache.c b/tests/cache/test_cache.c
new file mode 100644
index 000000000..a3720a200
--- /dev/null
+++ b/tests/cache/test_cache.c
@@ -0,0 +1,69 @@
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "cache.h"
+
+void print_value(int *val)
+{
+    if (val)
+        printf("%d\n", *val);
+    else
+        printf("NULL\n");
+}
+
+void split(char **arr, char *str, const char *del)
+{
+    char *s = strtok(str, del);
+
+    while (s != NULL) {
+        *arr++ = s;
+        s = strtok(NULL, del);
+    }
+}
+
+/* Commands of test_cache
+ * 1. NEW: cache_create(8), the cache size is set to 256.
+ * 2. GET key: cache_get(cache, key)
+ * 3. PUT key val: cache_put(cache, key, val)
+ * 4. FREE: cache_free(cache, free)
+ */
+int main(int argc, char *argv[])
+{
+    if (argc < 2) {
+        printf("Fail\n");
+    }
+    FILE *fp = fopen(argv[1], "r");
+    char *line = NULL, *ptr = NULL;
+    size_t len = 0;
+    struct cache *cache = NULL;
+    int key, *ans, *val;
+    while (getline(&line, &len, fp) != -1) {
+        char *arr[3];
+        split(arr, line, " ");
+        if (!strcmp(arr[0], "GET")) {
+            key = (int) strtol(arr[1], &ptr, 10);
+            ans = cache_get(cache, key);
+            print_value(ans);
+        } else if (!strcmp(arr[0], "PUT")) {
+            key = (int) strtol(arr[1], &ptr, 10);
+            val = malloc(sizeof(int));
+            *val = (int) strtol(arr[2], &ptr, 10);
+            val = cache_put(cache, key, val);
+            if (val) {
+                printf("REPLACE %d\n", *val);
+                free(val);
+            }
+        } else if (!strcmp(arr[0], "NEW\n")) {
+            cache = cache_create(8);
+            assert(cache);
+            printf("NEW CACHE\n");
+        } else if (!strcmp(arr[0], "FREE")) {
+            cache_free(cache, free);
+            printf("FREE CACHE\n");
+        }
+    }
+    fclose(fp);
+    return 0;
+}
\ No newline at end of file