cindex/Python: Add Cursor test.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94397 91177308-0d34-0410-b5e6-96231b3b80d8

bindings/python/tests/cindex/test_cursor.py

@@ -0,0 +1,59 @@
+from clang.cindex import Index, CursorKind
+
+kInput = """\
+// FIXME: Find nicer way to drop builtins and other cruft.
+int start_decl;
+
+struct s0 {
+  int a;
+  int b;
+};
+
+struct s1;
+
+void f0(int a0, int a1) {
+  int l0, l1;
+
+  if (a0)
+    return;
+
+  for (;;) {
+    break;
+  }
+}
+"""
+
+def test_get_children():
+    index = Index.create(1, 1)
+    tu = index.parse('t.c', unsaved_files = [('t.c',kInput)])
+    
+    # Skip until past start_decl.
+    it = tu.cursor.get_children()
+    while it.next().spelling != 'start_decl':
+        pass
+
+    tu_nodes = list(it)
+
+    assert len(tu_nodes) == 3
+
+    assert tu_nodes[0].kind == CursorKind.STRUCT_DECL
+    assert tu_nodes[0].spelling == 's0'
+    assert tu_nodes[0].is_definition() == True
+    assert tu_nodes[0].location.file.name == 't.c'
+    assert tu_nodes[0].location.line == 4
+    assert tu_nodes[0].location.column == 8
+
+    s0_nodes = list(tu_nodes[0].get_children())
+    assert len(s0_nodes) == 2
+    assert s0_nodes[0].kind == CursorKind.FIELD_DECL
+    assert s0_nodes[0].spelling == 'a'
+    assert s0_nodes[1].kind == CursorKind.FIELD_DECL
+    assert s0_nodes[1].spelling == 'b'
+
+    assert tu_nodes[1].kind == CursorKind.STRUCT_DECL
+    assert tu_nodes[1].spelling == 's1'
+    assert tu_nodes[1].is_definition() == False
+
+    assert tu_nodes[2].kind == CursorKind.FUNCTION_DECL
+    assert tu_nodes[2].spelling == 'f0'
+    assert tu_nodes[2].is_definition() == True