Merge remote-tracking branch 'origin/feat-pyo3-tests' into feat-pyo3

Author: Hywan

justfile

@@ -1,9 +1,10 @@
 # Install the environment to develop the extension.
 prelude:
-        pip3 install pyo3-pack
-        cargo install pyo3-pack
         pip3 install virtualenv
         virtualenv -p $(which python3) .env
+        source .env/bin/activate
+
+        pip3 install pyo3-pack pytest pytest-benchmark
 
 # Setup the environment to develop the extension.
 wakeup:
@@ -14,22 +15,22 @@ sleep:
         deactivate
 
 # Compile and install the Rust library.
-rust:
+rust: wakeup
         export PYTHON_SYS_EXECUTABLE=$(which python3)
         cargo check
         pyo3-pack develop --binding_crate pyo3 --release --strip
 
 # Run Python.
-python-run file='':
-        .env/bin/python {{file}}
+python-run file='': wakeup
+        python {{file}}
 
 # Run the tests.
-test:
-        @.env/bin/python tests/init.py
+test: wakeup
+        py.test tests
 
 # Inspect the `python-ext-wasm` extension.
-inspect:
-	.env/bin/python -c "help('wasmer')"
+inspect: wakeup
+	python -c "help('wasmer')"
 
 # Local Variables:
 # mode: makefile

tests/init.py

@@ -0,0 +1,16 @@
+from wasmer import Instance, Uint8MemoryView, Value, validate
+import inspect
+import os
+import pytest
+
+here = os.path.dirname(os.path.realpath(__file__))
+TEST_BYTES = open(here + '/tests.wasm', 'rb').read()
+
+def test_sum_benchmark(benchmark):
+    instance = Instance(TEST_BYTES)
+    sum_func = instance.exports['sum']
+
+    def bench():
+        return sum_func(1, 2)
+
+    assert benchmark(bench) == 3

tests/instance.py

@@ -0,0 +1,68 @@
+from wasmer import Instance, Uint8MemoryView, Value, validate
+import inspect
+import os
+import pytest
+
+here = os.path.dirname(os.path.realpath(__file__))
+TEST_BYTES = open(here + '/tests.wasm', 'rb').read()
+INVALID_TEST_BYTES = open(here + '/invalid.wasm', 'rb').read()
+
+def test_is_a_class():
+    assert inspect.isclass(Instance)
+
+def test_can_construct():
+    assert isinstance(Instance(TEST_BYTES), Instance)
+
+def test_failed_to_instantiate():
+    with pytest.raises(RuntimeError) as context_manager:
+        Instance(INVALID_TEST_BYTES)
+
+    exception = context_manager.value
+    assert str(exception) == (
+        'Failed to instantiate the module:\n    compile error: Validation error "Invalid type"'
+    )
+
+def test_function_does_not_exist():
+    with pytest.raises(KeyError) as context_manager:
+        Instance(TEST_BYTES).exports['foo']
+
+    exception = context_manager.value
+    assert str(exception) == "'foo'"
+
+def test_basic_sum():
+    assert Instance(TEST_BYTES).exports['sum'](1, 2) == 3
+
+def test_call_arity_0():
+    assert Instance(TEST_BYTES).exports['arity_0']() == 42
+
+def test_call_i32_i32():
+    assert Instance(TEST_BYTES).exports['i32_i32'](7) == 7
+
+def test_call_i64_i64():
+    assert Instance(TEST_BYTES).exports['i64_i64'](7) == 7
+
+def test_call_f32_f32():
+    assert Instance(TEST_BYTES).exports['f32_f32'](7.) == 7.
+
+def test_call_f64_f64():
+    assert Instance(TEST_BYTES).exports['f64_f64'](7.) == 7.
+
+def test_call_i32_i64_f32_f64_f64():
+    assert round(Instance(TEST_BYTES).exports['i32_i64_f32_f64_f64'](1, 2, 3.4, 5.6), 6) == (
+        1 + 2 + 3.4 + 5.6
+    )
+
+def test_call_bool_casted_to_i32():
+    assert Instance(TEST_BYTES).exports['bool_casted_to_i32']() == 1
+
+def test_call_string():
+    assert Instance(TEST_BYTES).exports['string']() == 1048576
+
+def test_validate():
+    assert validate(TEST_BYTES)
+
+def test_validate_invalid():
+    assert not validate(INVALID_TEST_BYTES)
+
+def test_memory_view():
+    assert isinstance(Instance(TEST_BYTES).uint8_memory_view(), Uint8MemoryView)