Add Binary Operator and Grouping (in Expressions) Tests

Signed-off-by: Will Hawkins <hawkinsw@obs.cr>

Tests/p4rseTests/BinaryOperatorTests/Struct.swift

@@ -0,0 +1,201 @@
+// p4rse, Copyright 2026, Will Hawkins
+//
+// This file is part of p4rse.
+//
+// This file is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+import Common
+import Foundation
+import Macros
+import P4Lang
+import P4Runtime
+import SwiftTreeSitter
+import Testing
+import TreeSitter
+import TreeSitterP4
+
+@testable import P4Compiler
+
+@Test func test_struct_equality_empty() async throws {
+  let simple_parser_declaration = """
+      parser main_parser() {
+        state start {
+          Testing one;
+          Testing two;
+          transition select (one == two) {
+            true: accept;
+            false: reject;
+          };
+        }
+      };
+    """
+  let test_declarations = VarTypeScopes().enter()
+  let fields = P4StructFields([
+    P4StructFieldIdentifier(name: "yesno", withType: P4Boolean()),
+    P4StructFieldIdentifier(name: "count", withType: P4Int()),
+  ])
+  var test_types = TypeTypeScopes().enter()
+  let struct_type = P4Struct(withName: Identifier(name: "Testing"), andFields: fields)
+  test_types = test_types.declare(identifier: Identifier(name: "Testing"), withValue: struct_type)
+
+  let program = try #UseOkResult(
+    Program.Compile(simple_parser_declaration, withGlobalInstances: test_declarations, withGlobalTypes: test_types))
+
+  let runtime = try #UseOkResult(P4Runtime.ParserRuntime.create(program: program))
+  let (state_result, _) = try! #UseOkResult(runtime.run())
+  #expect(state_result == P4Lang.accept)
+}
+
+@Test func test_struct_equality_one_empty() async throws {
+  let simple_parser_declaration = """
+      parser main_parser() {
+        state start {
+          Testing one;
+          Testing two;
+
+          one.yesno = true;
+
+          transition select (one == two) {
+            true: accept;
+            false: reject;
+          };
+        }
+      };
+    """
+  let test_declarations = VarTypeScopes().enter()
+  let fields = P4StructFields([
+    P4StructFieldIdentifier(name: "yesno", withType: P4Boolean()),
+    P4StructFieldIdentifier(name: "count", withType: P4Int()),
+  ])
+  var test_types = TypeTypeScopes().enter()
+  let struct_type = P4Struct(withName: Identifier(name: "Testing"), andFields: fields)
+  test_types = test_types.declare(identifier: Identifier(name: "Testing"), withValue: struct_type)
+
+  let program = try #UseOkResult(
+    Program.Compile(simple_parser_declaration, withGlobalInstances: test_declarations, withGlobalTypes: test_types))
+
+  let runtime = try #UseOkResult(P4Runtime.ParserRuntime.create(program: program))
+  let (state_result, _) = try! #UseOkResult(runtime.run())
+  #expect(state_result == P4Lang.reject)
+}
+
+@Test func test_struct_equality_neither_empty() async throws {
+  let simple_parser_declaration = """
+      parser main_parser() {
+        state start {
+          Testing one;
+          Testing two;
+
+          one.yesno = true;
+          two.yesno = true;
+
+          transition select (one == two) {
+            true: accept;
+            false: reject;
+          };
+        }
+      };
+    """
+  let test_declarations = VarTypeScopes().enter()
+  let fields = P4StructFields([
+    P4StructFieldIdentifier(name: "yesno", withType: P4Boolean()),
+    P4StructFieldIdentifier(name: "count", withType: P4Int()),
+  ])
+  var test_types = TypeTypeScopes().enter()
+  let struct_type = P4Struct(withName: Identifier(name: "Testing"), andFields: fields)
+  test_types = test_types.declare(identifier: Identifier(name: "Testing"), withValue: struct_type)
+
+  let program = try #UseOkResult(
+    Program.Compile(simple_parser_declaration, withGlobalInstances: test_declarations, withGlobalTypes: test_types))
+
+  let runtime = try #UseOkResult(P4Runtime.ParserRuntime.create(program: program))
+  let (state_result, _) = try! #UseOkResult(runtime.run())
+  #expect(state_result == P4Lang.accept)
+}
+
+@Test func test_struct_equality_neither_empty2() async throws {
+  let simple_parser_declaration = """
+      parser main_parser() {
+        state start {
+          Testing one;
+          Testing two;
+
+          one.yesno = true;
+          two.yesno = true;
+
+          one.count = 5;
+          two.count = 5;
+
+          transition select (one == two) {
+            true: accept;
+            false: reject;
+          };
+        }
+      };
+    """
+  let test_declarations = VarTypeScopes().enter()
+  let fields = P4StructFields([
+    P4StructFieldIdentifier(name: "yesno", withType: P4Boolean()),
+    P4StructFieldIdentifier(name: "count", withType: P4Int()),
+  ])
+  var test_types = TypeTypeScopes().enter()
+  let struct_type = P4Struct(withName: Identifier(name: "Testing"), andFields: fields)
+  test_types = test_types.declare(identifier: Identifier(name: "Testing"), withValue: struct_type)
+
+  let program = try #UseOkResult(
+    Program.Compile(simple_parser_declaration, withGlobalInstances: test_declarations, withGlobalTypes: test_types))
+
+  let runtime = try #UseOkResult(P4Runtime.ParserRuntime.create(program: program))
+  let (state_result, _) = try! #UseOkResult(runtime.run())
+  #expect(state_result == P4Lang.accept)
+}
+
+@Test func test_struct_equality_neither_empty3() async throws {
+  let simple_parser_declaration = """
+      parser main_parser() {
+        state start {
+          Testing one;
+          Testing two;
+
+          one.yesno = true;
+          two.yesno = true;
+
+          one.count = 5;
+          two.count = 6;
+
+          transition select (one == two) {
+            true: accept;
+            false: reject;
+          };
+        }
+      };
+    """
+  let test_declarations = VarTypeScopes().enter()
+  let fields = P4StructFields([
+    P4StructFieldIdentifier(name: "yesno", withType: P4Boolean()),
+    P4StructFieldIdentifier(name: "count", withType: P4Int()),
+  ])
+  var test_types = TypeTypeScopes().enter()
+  let struct_type = P4Struct(withName: Identifier(name: "Testing"), andFields: fields)
+  test_types = test_types.declare(identifier: Identifier(name: "Testing"), withValue: struct_type)
+
+  let program = try #UseOkResult(
+    Program.Compile(simple_parser_declaration, withGlobalInstances: test_declarations, withGlobalTypes: test_types))
+
+  let runtime = try #UseOkResult(P4Runtime.ParserRuntime.create(program: program))
+  let (state_result, _) = try! #UseOkResult(runtime.run())
+  #expect(state_result == P4Lang.reject)
+}
+
+