JSONStream and tests

runtime/vm/json_test.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "platform/assert.h"
 #include "platform/json.h"
+#include "vm/json_stream.h"
 #include "vm/unit_test.h"
 
 namespace dart {
 
 
 TEST_CASE(JSON_ScanJSON) {
   const char* msg = "{ \"id\": 5, \"command\" : \"Debugger.pause\" }";
 
   JSONScanner scanner(msg);
   EXPECT_EQ(scanner.CurrentToken(), JSONScanner::TokenIllegal);
@@ skipping 92 matching lines @@
   w.Printf(", \"%s\" : \"%s\" }", "command", "stopIt");
   EXPECT_STREQ("{ \"length\" : 175, \"command\" : \"stopIt\" }", w.buf());
 
   JSONReader r(w.buf());
   bool found = r.Seek("command");
   EXPECT(found);
   EXPECT_EQ(r.Type(), JSONReader::kString);
   EXPECT(r.IsStringLiteral("stopIt"));
 }
 
+
+TEST_CASE(JSON_JSONStream_Primitives) {
+  TextBuffer tb(256);
+  JSONStream js(&tb);
+
+  js.OpenObject();
+  js.CloseObject();
+
+  EXPECT_STREQ("{}", tb.buf());
+
+  js.Clear();
+  js.OpenArray();
+  js.CloseArray();
+  EXPECT_STREQ("[]", tb.buf());
+
+  js.Clear();
+  js.PrintValueBool(true);
+  EXPECT_STREQ("true", tb.buf());
+
+  js.Clear();
+  js.PrintValueBool(false);
+  EXPECT_STREQ("false", tb.buf());
+
+  js.Clear();
+  js.PrintValue((intptr_t)4);
+  EXPECT_STREQ("4", tb.buf());
+
+  js.Clear();
+  js.PrintValue(1.0);
+  EXPECT_STREQ("1.000000", tb.buf());
+
+  js.Clear();
+  js.PrintValue("hello");
+  EXPECT_STREQ("\"hello\"", tb.buf());
+}
+
+
+TEST_CASE(JSON_JSONStream_Array) {
+  TextBuffer tb(256);
+  JSONStream js(&tb);
+  js.Clear();
+  js.OpenArray();
+  js.PrintValueBool(true);
+  js.PrintValueBool(false);
+  js.CloseArray();
+  EXPECT_STREQ("[true,false]", tb.buf());
+}
+
+
+TEST_CASE(JSON_JSONStream_Object) {
+  TextBuffer tb(256);
+  JSONStream js(&tb);
+  js.Clear();
+  js.OpenObject();
+  js.PrintProperty("key1", "a");
+  js.PrintProperty("key2", "b");
+  js.CloseObject();
+  EXPECT_STREQ("{\"key1\":\"a\",\"key2\":\"b\"}", tb.buf());
+}
+
+TEST_CASE(JSON_JSONStream_NestedObject) {
+  TextBuffer tb(256);
+  JSONStream js(&tb);
+  js.OpenObject();
+  js.OpenObject("key");
+  js.PrintProperty("key1", "d");
+  js.CloseObject();
+  js.CloseObject();
+  EXPECT_STREQ("{\"key\":{\"key1\":\"d\"}}", tb.buf());
+}
+
+
+TEST_CASE(JSON_JSONStream_ObjectArray) {
+  TextBuffer tb(256);
+  JSONStream js(&tb);
+  js.OpenArray();
+  js.OpenObject();
+  js.PrintProperty("key", "e");
+  js.CloseObject();
+  js.OpenObject();
+  js.PrintProperty("yek", "f");
+  js.CloseObject();
+  js.CloseArray();
+  EXPECT_STREQ("[{\"key\":\"e\"},{\"yek\":\"f\"}]", tb.buf());
+}
+
+
+TEST_CASE(JSON_JSONStream_ArrayArray) {
+  TextBuffer tb(256);
+  JSONStream js(&tb);
+  js.OpenArray();
+  js.OpenArray();
+  js.PrintValue((intptr_t)4);
+  js.CloseArray();
+  js.OpenArray();
+  js.PrintValueBool(false);
+  js.CloseArray();
+  js.CloseArray();
+  EXPECT_STREQ("[[4],[false]]", tb.buf());
+}
+
+
 }  // namespace dart