flatc can now convert flatbuffer binary files into json.

Also removed it appending _wire to filenames, renamed the json golden
file to .golden to not clash with generated files.

Bug: 15781201
Change-Id: I8322861e50d1e5b6a5ab5e4b5e5d8ae13c356eb2
Tested: on Windows and Linux

tests/JavaTest.java

@@ -26,7 +26,7 @@ class JavaTest {
         // This file was generated from monsterdata_test.json
 
         byte[] data = null;
-        File file = new File("monsterdata_test_wire.bin");
+        File file = new File("monsterdata_test.bin");
         RandomAccessFile f = null;
         try {
             f = new RandomAccessFile(file, "r");

tests/monsterdata_test.golden

@@ -0,0 +1,36 @@
+{
+  pos: {
+    x: 1,
+    y: 2,
+    z: 3,
+    test1: 3,
+    test2: 4,
+    test3: {
+      a: 5,
+      b: 6
+    }
+  },
+  hp: 80,
+  name: "MyMonster",
+  inventory: [
+    0,
+    1,
+    2,
+    3,
+    4
+  ],
+  test_type: 1,
+  test: {
+    hp: 20
+  },
+  test4: [
+    {
+      a: 10,
+      b: 20
+    },
+    {
+      a: 30,
+      b: 40
+    }
+  ]
+}

tests/test.cpp

@@ -181,7 +181,7 @@ void ParseAndGenerateTextTest() {
   TEST_EQ(flatbuffers::LoadFile(
     "tests/monster_test.fbs", false, &schemafile), true);
   TEST_EQ(flatbuffers::LoadFile(
-    "tests/monsterdata_test.json", false, &jsonfile), true);
+    "tests/monsterdata_test.golden", false, &jsonfile), true);
 
   // parse schema first, so we can use it to parse the data after
   flatbuffers::Parser parser;