Add coverage for Document::ParseXXX()

test/unittest/documenttest.cpp

@@ -28,13 +28,9 @@
 
 using namespace rapidjson;
 
-template <typename Allocator, typename StackAllocator>
-void ParseTest() {
-    typedef GenericDocument<UTF8<>, Allocator, StackAllocator> DocumentType;
+template <typename DocumentType>
+void ParseCheck(DocumentType& doc) {
     typedef typename DocumentType::ValueType ValueType;
-    DocumentType doc;
-
-    doc.Parse(" { \"hello\" : \"world\", \"t\" : true , \"f\" : false, \"n\": null, \"i\":123, \"pi\": 3.1416, \"a\":[1, 2, 3, 4] } ");
 
     EXPECT_TRUE(doc.IsObject());
 
@@ -73,6 +69,28 @@ void ParseTest() {
         EXPECT_EQ(i + 1, a[i].GetUint());
 }
 
+template <typename Allocator, typename StackAllocator>
+void ParseTest() {
+    typedef GenericDocument<UTF8<>, Allocator, StackAllocator> DocumentType;
+    DocumentType doc;
+
+    const char* json = " { \"hello\" : \"world\", \"t\" : true , \"f\" : false, \"n\": null, \"i\":123, \"pi\": 3.1416, \"a\":[1, 2, 3, 4] } ";
+
+    EXPECT_FALSE(doc.Parse(json).HasParseError());
+    ParseCheck(doc);
+
+    doc.SetNull();
+    StringStream s(json);
+    EXPECT_FALSE(doc.ParseStream<0>( s).HasParseError());
+    ParseCheck(doc);
+
+    doc.SetNull();
+    char *buffer = strdup(json);
+    EXPECT_FALSE(doc.ParseInsitu(buffer).HasParseError());
+    ParseCheck(doc);
+    free(buffer);
+}
+
 TEST(Document, Parse) {
     ParseTest<MemoryPoolAllocator<>, CrtAllocator>();
     ParseTest<MemoryPoolAllocator<>, MemoryPoolAllocator<> >();