Consolidate WASM bindings test files

PiperOrigin-RevId: 827888382 Change-Id: I4ded54cd49182de0b4243770e2507038ad6fac7a
2025-11-04 03:18:43 -08:00
parent 2018b8c494
commit 9b71fc728d
10 changed files with 946 additions and 1025 deletions
@@ -0,0 +1,106 @@
+# Copyright 2025 DeepMind Technologies Limited
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from absl.testing import absltest
+
+from introspect import ast_nodes
+
+from wasm.codegen.generators import enums
+from wasm.codegen.generators import functions
+
+
+class EnumsGeneratorTest(absltest.TestCase):
+
+  def test_generate_enum_bindings(self):
+
+    generator = enums.Generator({
+        "TestEnum": ast_nodes.EnumDecl(
+            name="TestEnum",
+            declname="enum TestEnum_",
+            values={"FIRST_VAL": 0, "SECOND_VAL": 1, "THIRD_VAL": 2},
+        ),
+        "AnotherEnum": ast_nodes.EnumDecl(
+            name="AnotherEnum",
+            declname="enum AnotherEnum_",
+            values={"ALPHA": 100, "BETA": 200},
+        ),
+        "EmptyEnum": ast_nodes.EnumDecl(
+            name="EmptyEnum",
+            declname="enum EmptyEnum_",
+            values={},
+        ),
+    })
+
+    expected_code = """  enum_<TestEnum>("TestEnum")
+    .value("FIRST_VAL", FIRST_VAL)
+    .value("SECOND_VAL", SECOND_VAL)
+    .value("THIRD_VAL", THIRD_VAL);
+
+  enum_<AnotherEnum>("AnotherEnum")
+    .value("ALPHA", ALPHA)
+    .value("BETA", BETA);
+
+  enum_<EmptyEnum>("EmptyEnum");
+"""
+
+    actual_code = generator.generate()
+
+    self.assertEqual(actual_code, expected_code)
+
+class FunctionsGeneratorTest(absltest.TestCase):
+
+  def setUp(self):
+    super().setUp()
+    self.generator = functions.Generator({})
+    self.int_type = ast_nodes.ValueType(name="int")
+
+  def test_generate_function_binding_simple_case(self):
+    func_simple_void = ast_nodes.FunctionDecl(
+        name="do_nothing",
+        return_type=ast_nodes.ValueType(name="void"),
+        parameters=tuple(),
+        doc="doc",
+    )
+    self.assertEqual(
+        self.generator._generate_function_binding(func_simple_void),
+        'function("do_nothing", &do_nothing);\n',
+    )
+
+  def test_generate_direct_bindable_functions_simple_filter(self):
+    direct_bind = ast_nodes.FunctionDecl(
+        name="direct_bind",
+        return_type=self.int_type,
+        parameters=(
+            ast_nodes.FunctionParameterDecl(name="val", type=self.int_type),
+        ),
+        doc="doc",
+    )
+    needs_wrap = ast_nodes.FunctionDecl(
+        name="needs_wrap",
+        return_type=ast_nodes.PointerType(inner_type=self.int_type),
+        parameters=tuple(),
+        doc="doc",
+    )
+    self.generator = functions.Generator({
+        "direct1": direct_bind,
+        "wrapped1": needs_wrap,
+    })
+
+    generated_code = self.generator._generate_direct_bindable_functions()
+    self.assertIn('function("direct_bind", &direct_bind);\n', generated_code)
+    self.assertNotIn('function("needs_wrap", &needs_wrap);\n', generated_code)
+
+
+if __name__ == "__main__":
+  absltest.main()