From 6dd75f3797ef3280d022c5e34f8c237c575ed831 Mon Sep 17 00:00:00 2001
From: Falk Werner <falk.werner@gmx.net>
Date: Thu, 16 Jul 2020 17:38:35 +0200
Subject: [PATCH] add tests of json parser

---
 meson.build                      |   1 +
 test/webfuse/json/test_parser.cc | 103 +++++++++++++++++++++++++++++++
 2 files changed, 104 insertions(+)
 create mode 100644 test/webfuse/json/test_parser.cc

diff --git a/meson.build b/meson.build
index 85fcc56..d358db0 100644
--- a/meson.build
+++ b/meson.build
@@ -125,6 +125,7 @@ alltests = executable('alltests',
 	'test/webfuse/json/test_doc.cc',
 	'test/webfuse/json/test_node.cc',
 	'test/webfuse/json/test_reader.cc',
+	'test/webfuse/json/test_parser.cc',
 	'test/webfuse/jsonrpc/mock_timer_callback.cc',
 	'test/webfuse/jsonrpc/mock_timer.cc',
 	'test/webfuse/jsonrpc/test_is_request.cc',
diff --git a/test/webfuse/json/test_parser.cc b/test/webfuse/json/test_parser.cc
new file mode 100644
index 0000000..06ab742
--- /dev/null
+++ b/test/webfuse/json/test_parser.cc
@@ -0,0 +1,103 @@
+#include "webfuse/impl/json/parser.h"
+#include "webfuse/impl/json/reader.h"
+#include "webfuse/impl/json/node_intern.h"
+
+#include <gtest/gtest.h>
+#include <string>
+
+namespace
+{
+
+bool try_parse(std::string const & value)
+{
+    std::string contents = value;
+    struct wf_json_reader reader;
+    wf_impl_json_reader_init(&reader, const_cast<char*>(contents.data()), contents.size());
+    wf_json json;
+
+    bool const result = wf_impl_json_parse_value(&reader, &json);
+    if (result)
+    {
+        wf_impl_json_cleanup(&json);
+    }
+
+    return result;
+}
+
+}
+
+
+TEST(json_parser, fail_no_contents)
+{
+    ASSERT_FALSE(try_parse(""));
+}
+
+TEST(json_parser, fail_invalid_null)
+{
+    ASSERT_FALSE(try_parse("none"));
+}
+
+TEST(json_parser, fail_invalid_true)
+{
+    ASSERT_FALSE(try_parse("tru"));
+}
+
+TEST(json_parser, fail_invalid_false)
+{
+    ASSERT_FALSE(try_parse("fals"));
+}
+
+TEST(json_parser, fail_invalid_int)
+{
+    ASSERT_FALSE(try_parse("-"));
+}
+
+TEST(json_parser, fail_invalid_string)
+{
+    ASSERT_FALSE(try_parse("\"invalid"));
+}
+
+TEST(json_parser, empty_array)
+{
+    ASSERT_TRUE(try_parse("[]"));
+}
+
+TEST(json_parser, large_array)
+{
+    ASSERT_TRUE(try_parse("[1,2,3,4,5,6,7,8,9]"));
+}
+
+TEST(json_parser, fail_unterminated_array)
+{
+    ASSERT_FALSE(try_parse("[1"));
+}
+
+TEST(json_parser, empty_object)
+{
+    ASSERT_TRUE(try_parse("{}"));
+}
+
+TEST(json_parser, large_object)
+{
+    ASSERT_TRUE(try_parse("{\"a\":1,\"b\":2,\"c\":3,\"d\":4,\"e\":5}"));
+}
+
+TEST(json_parser, fail_unterminated_object)
+{
+    ASSERT_FALSE(try_parse("{\"a\":1"));
+}
+
+TEST(json_parser, fail_invalid_object_key)
+{
+    ASSERT_FALSE(try_parse("{a:1}"));
+}
+
+TEST(json_parser, fail_missing_object_terminator)
+{
+    ASSERT_FALSE(try_parse("{\"a\"1}"));
+}
+
+TEST(json_parser, fail_missing_object_value)
+{
+    ASSERT_FALSE(try_parse("{\"a\":}"));
+}