Add test

Author: KangarooKoala

tests/test_requires.py

@@ -0,0 +1,67 @@
+# Note: testcases generated via `python -m cxxheaderparser.gentest`
+
+from cxxheaderparser.simple import NamespaceScope, ParsedData, parse_string
+from cxxheaderparser.types import (
+    Function,
+    FundamentalSpecifier,
+    NameSpecifier,
+    PQName,
+    TemplateDecl,
+    TemplateNonTypeParam,
+    Token,
+    Type,
+    Value,
+)
+
+
+def test_requires_parenthesized_atoms() -> None:
+    content = """
+      template <int X>
+        requires (X == 0) || (X == 1)
+      int Fibonacci() { return X; }
+    """
+    data = parse_string(content, cleandoc=True)
+
+    assert data == ParsedData(
+        namespace=NamespaceScope(
+            functions=[
+                Function(
+                    return_type=Type(
+                        typename=PQName(segments=[FundamentalSpecifier(name="int")])
+                    ),
+                    name=PQName(segments=[NameSpecifier(name="Fibonacci")]),
+                    parameters=[],
+                    has_body=True,
+                    template=TemplateDecl(
+                        params=[
+                            TemplateNonTypeParam(
+                                type=Type(
+                                    typename=PQName(
+                                        segments=[FundamentalSpecifier(name="int")]
+                                    )
+                                ),
+                                name="X",
+                            )
+                        ],
+                        raw_requires_pre=Value(
+                            tokens=[
+                                Token(value="("),
+                                Token(value="X"),
+                                Token(value="="),
+                                Token(value="="),
+                                Token(value="0"),
+                                Token(value=")"),
+                                Token(value="||"),
+                                Token(value="("),
+                                Token(value="X"),
+                                Token(value="="),
+                                Token(value="="),
+                                Token(value="1"),
+                                Token(value=")"),
+                            ]
+                        ),
+                    ),
+                )
+            ]
+        )
+    )