From 35979953a534bcdb2185de0a934e7937f319d687 Mon Sep 17 00:00:00 2001
From: Melody Horn <melody@boringcactus.com>
Date: Wed, 4 Nov 2020 19:24:09 -0700
Subject: switch from specific declarations to generic AST

---
 tests/test_ast.py | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 tests/test_ast.py

(limited to 'tests/test_ast.py')

diff --git a/tests/test_ast.py b/tests/test_ast.py
new file mode 100644
index 0000000..b2c592d
--- /dev/null
+++ b/tests/test_ast.py
@@ -0,0 +1,54 @@
+import unittest
+
+from crowbar_reference_compiler import build_ast, parse_header, scan
+from crowbar_reference_compiler.ast import ArrayType, BasicType, ConstantExpression, EnumDeclaration, HeaderFile, \
+    PointerType, StructDeclaration, UnionDeclaration, VariableDeclaration, VariableExpression
+
+
+class TestAST(unittest.TestCase):
+    def test_kitchen_sink(self):
+        code = r"""
+struct normal {
+    bool fake;
+    (uint8[3])* data;
+}
+
+opaque struct ope;
+
+enum sample {
+    Testing,
+}
+
+union robust {
+    enum sample tag;
+    
+    switch (tag) {
+        case Testing: bool testPassed;
+    }
+}
+
+fragile union not_robust {
+    int8 sample;
+    bool nope;
+}
+"""
+        tokens = scan(code)
+        parse_tree = parse_header(tokens)
+        decls = build_ast(parse_tree, [])
+        normal = StructDeclaration('normal', [
+            VariableDeclaration('fake', BasicType('bool')),
+            VariableDeclaration('data', PointerType(ArrayType(BasicType('uint8'), ConstantExpression('3')))),
+        ])
+        ope = StructDeclaration('ope', None)
+        sample = EnumDeclaration('sample', [('Testing', None)])
+        robust = UnionDeclaration('robust', VariableDeclaration('tag', BasicType('enum sample')),
+                                  [(VariableExpression('Testing'), VariableDeclaration('testPassed', BasicType('bool')))])
+        not_robust = UnionDeclaration('not_robust', None, [
+            VariableDeclaration('sample', BasicType('int8')),
+            VariableDeclaration('nope', BasicType('bool')),
+        ])
+        self.assertEqual(decls, HeaderFile([], [normal, ope, sample, robust, not_robust]))
+
+
+if __name__ == '__main__':
+    unittest.main()
-- 
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