Skip to content

test_valid_mcopy_operations()

Documentation for tests/cancun/eip5656_mcopy/test_mcopy.py::test_valid_mcopy_operations@verkle@v0.0.6.

Generate fixtures for these test cases for Cancun with:

Cancun only: 

fill -v tests/cancun/eip5656_mcopy/test_mcopy.py::test_valid_mcopy_operations --fork=Cancun --evm-bin=/path/to/evm-tool-dev-version

For all forks up to and including Cancun: 

fill -v tests/cancun/eip5656_mcopy/test_mcopy.py::test_valid_mcopy_operations --until=Cancun

Perform MCOPY operations using different offsets and lengths
  • Zero inputs
  • Memory rewrites (copy from and to the same location)
  • Memory overwrites (copy from and to different locations)
  • Memory extensions (copy to a location that is out of bounds)
  • Memory clear (copy from a location that is out of bounds)
Source code in tests/cancun/eip5656_mcopy/test_mcopy.py 
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
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
192
193
194
195
196
197
198
199
@pytest.mark.parametrize(
    "dest,src,length",
    [
        (0x00, 0x00, 0x00),
        (2**256 - 1, 0x00, 0x00),
        (0x00, 0x00, 0x01),
        (0x00, 0x00, 0x20),
        (0x01, 0x00, 0x01),
        (0x01, 0x00, 0x20),
        (0x11, 0x11, 0x01),
        (0x11, 0x11, 0x20),
        (0x11, 0x11, 0x40),
        (0x10, 0x00, 0x40),
        (0x00, 0x10, 0x40),
        (0x0F, 0x10, 0x40),
        (0x100, 0x01, 0x01),
        (0x100, 0x01, 0x20),
        (0x100, 0x01, 0x1F),
        (0x100, 0x01, 0x21),
        (0x00, 0x00, 0x100),
        (0x100, 0x00, 0x100),
        (0x200, 0x00, 0x100),
        (0x00, 0x100, 0x100),
        (0x100, 0x100, 0x01),
    ],
    ids=[
        "zero_inputs",
        "zero_length_out_of_bounds_destination",
        "single_byte_rewrite",
        "full_word_rewrite",
        "single_byte_forward_overwrite",
        "full_word_forward_overwrite",
        "mid_word_single_byte_rewrite",
        "mid_word_single_word_rewrite",
        "mid_word_multi_word_rewrite",
        "two_words_forward_overwrite",
        "two_words_backward_overwrite",
        "two_words_backward_overwrite_single_byte_offset",
        "single_byte_memory_extension",
        "single_word_memory_extension",
        "single_word_minus_one_byte_memory_extension",
        "single_word_plus_one_byte_memory_extension",
        "full_memory_rewrite",
        "full_memory_copy",
        "full_memory_copy_offset",
        "full_memory_clean",
        "out_of_bounds_memory_extension",
    ],
)
@pytest.mark.with_all_evm_code_types
@pytest.mark.valid_from("Cancun")
def test_valid_mcopy_operations(
    state_test: StateTestFiller,
    pre: Alloc,
    post: Mapping[str, Account],
    tx: Transaction,
):
    """
    Perform MCOPY operations using different offsets and lengths:
      - Zero inputs
      - Memory rewrites (copy from and to the same location)
      - Memory overwrites (copy from and to different locations)
      - Memory extensions (copy to a location that is out of bounds)
      - Memory clear (copy from a location that is out of bounds)
    """
    state_test(
        env=Environment(),
        pre=pre,
        post=post,
        tx=tx,
    )

Parametrized Test Cases

The interactive table below is also available as a standalone page.

Skipped Parameters

For more concise readability, the table below does not list the following parameter values: fork, blockchain_test, state_test, state_test_only, eof_test, eof_state_test.

Test ID evm_code_type dest src length
evm_code_type_LEGACY-zero_inputs LEGACY 0 0 0
evm_code_type_LEGACY-zero_length_out_of_bounds_destination LEGACY 115792089237316195423570985008687907853269984665640564039457584007913129639935 0 0
evm_code_type_LEGACY-single_byte_rewrite LEGACY 0 0 1
evm_code_type_LEGACY-full_word_rewrite LEGACY 0 0 32
evm_code_type_LEGACY-single_byte_forward_overwrite LEGACY 1 0 1
evm_code_type_LEGACY-full_word_forward_overwrite LEGACY 1 0 32
evm_code_type_LEGACY-mid_word_single_byte_rewrite LEGACY 17 17 1
evm_code_type_LEGACY-mid_word_single_word_rewrite LEGACY 17 17 32
evm_code_type_LEGACY-mid_word_multi_word_rewrite LEGACY 17 17 64
evm_code_type_LEGACY-two_words_forward_overwrite LEGACY 16 0 64
evm_code_type_LEGACY-two_words_backward_overwrite LEGACY 0 16 64
evm_code_type_LEGACY-two_words_backward_overwrite_single_byte_offset LEGACY 15 16 64
evm_code_type_LEGACY-single_byte_memory_extension LEGACY 256 1 1
evm_code_type_LEGACY-single_word_memory_extension LEGACY 256 1 32
evm_code_type_LEGACY-single_word_minus_one_byte_memory_extension LEGACY 256 1 31
evm_code_type_LEGACY-single_word_plus_one_byte_memory_extension LEGACY 256 1 33
evm_code_type_LEGACY-full_memory_rewrite LEGACY 0 0 256
evm_code_type_LEGACY-full_memory_copy LEGACY 256 0 256
evm_code_type_LEGACY-full_memory_copy_offset LEGACY 512 0 256
evm_code_type_LEGACY-full_memory_clean LEGACY 0 256 256
evm_code_type_LEGACY-out_of_bounds_memory_extension LEGACY 256 256 1
evm_code_type_LEGACY-zero_inputs LEGACY 0 0 0
evm_code_type_LEGACY-zero_length_out_of_bounds_destination LEGACY 115792089237316195423570985008687907853269984665640564039457584007913129639935 0 0
evm_code_type_LEGACY-single_byte_rewrite LEGACY 0 0 1
evm_code_type_LEGACY-full_word_rewrite LEGACY 0 0 32
evm_code_type_LEGACY-single_byte_forward_overwrite LEGACY 1 0 1
evm_code_type_LEGACY-full_word_forward_overwrite LEGACY 1 0 32
evm_code_type_LEGACY-mid_word_single_byte_rewrite LEGACY 17 17 1
evm_code_type_LEGACY-mid_word_single_word_rewrite LEGACY 17 17 32
evm_code_type_LEGACY-mid_word_multi_word_rewrite LEGACY 17 17 64
evm_code_type_LEGACY-two_words_forward_overwrite LEGACY 16 0 64
evm_code_type_LEGACY-two_words_backward_overwrite LEGACY 0 16 64
evm_code_type_LEGACY-two_words_backward_overwrite_single_byte_offset LEGACY 15 16 64
evm_code_type_LEGACY-single_byte_memory_extension LEGACY 256 1 1
evm_code_type_LEGACY-single_word_memory_extension LEGACY 256 1 32
evm_code_type_LEGACY-single_word_minus_one_byte_memory_extension LEGACY 256 1 31
evm_code_type_LEGACY-single_word_plus_one_byte_memory_extension LEGACY 256 1 33
evm_code_type_LEGACY-full_memory_rewrite LEGACY 0 0 256
evm_code_type_LEGACY-full_memory_copy LEGACY 256 0 256
evm_code_type_LEGACY-full_memory_copy_offset LEGACY 512 0 256
evm_code_type_LEGACY-full_memory_clean LEGACY 0 256 256
evm_code_type_LEGACY-out_of_bounds_memory_extension LEGACY 256 256 1
evm_code_type_EOF_V1-zero_inputs EOF_V1 0 0 0
evm_code_type_EOF_V1-zero_length_out_of_bounds_destination EOF_V1 115792089237316195423570985008687907853269984665640564039457584007913129639935 0 0
evm_code_type_EOF_V1-single_byte_rewrite EOF_V1 0 0 1
evm_code_type_EOF_V1-full_word_rewrite EOF_V1 0 0 32
evm_code_type_EOF_V1-single_byte_forward_overwrite EOF_V1 1 0 1
evm_code_type_EOF_V1-full_word_forward_overwrite EOF_V1 1 0 32
evm_code_type_EOF_V1-mid_word_single_byte_rewrite EOF_V1 17 17 1
evm_code_type_EOF_V1-mid_word_single_word_rewrite EOF_V1 17 17 32
evm_code_type_EOF_V1-mid_word_multi_word_rewrite EOF_V1 17 17 64
evm_code_type_EOF_V1-two_words_forward_overwrite EOF_V1 16 0 64
evm_code_type_EOF_V1-two_words_backward_overwrite EOF_V1 0 16 64
evm_code_type_EOF_V1-two_words_backward_overwrite_single_byte_offset EOF_V1 15 16 64
evm_code_type_EOF_V1-single_byte_memory_extension EOF_V1 256 1 1
evm_code_type_EOF_V1-single_word_memory_extension EOF_V1 256 1 32
evm_code_type_EOF_V1-single_word_minus_one_byte_memory_extension EOF_V1 256 1 31
evm_code_type_EOF_V1-single_word_plus_one_byte_memory_extension EOF_V1 256 1 33
evm_code_type_EOF_V1-full_memory_rewrite EOF_V1 0 0 256
evm_code_type_EOF_V1-full_memory_copy EOF_V1 256 0 256
evm_code_type_EOF_V1-full_memory_copy_offset EOF_V1 512 0 256
evm_code_type_EOF_V1-full_memory_clean EOF_V1 0 256 256
evm_code_type_EOF_V1-out_of_bounds_memory_extension EOF_V1 256 256 1
evm_code_type_EOF_V1-zero_inputs EOF_V1 0 0 0
evm_code_type_EOF_V1-zero_length_out_of_bounds_destination EOF_V1 115792089237316195423570985008687907853269984665640564039457584007913129639935 0 0
evm_code_type_EOF_V1-single_byte_rewrite EOF_V1 0 0 1
evm_code_type_EOF_V1-full_word_rewrite EOF_V1 0 0 32
evm_code_type_EOF_V1-single_byte_forward_overwrite EOF_V1 1 0 1
evm_code_type_EOF_V1-full_word_forward_overwrite EOF_V1 1 0 32
evm_code_type_EOF_V1-mid_word_single_byte_rewrite EOF_V1 17 17 1
evm_code_type_EOF_V1-mid_word_single_word_rewrite EOF_V1 17 17 32
evm_code_type_EOF_V1-mid_word_multi_word_rewrite EOF_V1 17 17 64
evm_code_type_EOF_V1-two_words_forward_overwrite EOF_V1 16 0 64
evm_code_type_EOF_V1-two_words_backward_overwrite EOF_V1 0 16 64
evm_code_type_EOF_V1-two_words_backward_overwrite_single_byte_offset EOF_V1 15 16 64
evm_code_type_EOF_V1-single_byte_memory_extension EOF_V1 256 1 1
evm_code_type_EOF_V1-single_word_memory_extension EOF_V1 256 1 32
evm_code_type_EOF_V1-single_word_minus_one_byte_memory_extension EOF_V1 256 1 31
evm_code_type_EOF_V1-single_word_plus_one_byte_memory_extension EOF_V1 256 1 33
evm_code_type_EOF_V1-full_memory_rewrite EOF_V1 0 0 256
evm_code_type_EOF_V1-full_memory_copy EOF_V1 256 0 256
evm_code_type_EOF_V1-full_memory_copy_offset EOF_V1 512 0 256
evm_code_type_EOF_V1-full_memory_clean EOF_V1 0 256 256
evm_code_type_EOF_V1-out_of_bounds_memory_extension EOF_V1 256 256 1