Added JsonContainer::prettyPrintTo()

tests/JsonArray_PrettyPrintTo_Tests.cpp

@@ -0,0 +1,93 @@
+/*
+* Arduino JSON library
+* Benoit Blanchon 2014 - MIT License
+*/
+
+#include <gtest/gtest.h>
+#include <JsonArray.h>
+#include <JsonObject.h>
+#include <StaticJsonBuffer.h>
+
+class JsonArray_PrettyPrintTo_Tests : public testing::Test
+{
+protected:
+    JsonArray array;
+    StaticJsonBuffer<30> json;
+
+    virtual void SetUp()
+    {
+        array = json.createArray();
+    }
+
+    void outputMustBe(const char* expected)
+    {
+        size_t n = array.prettyPrintTo(buffer, sizeof(buffer));
+        EXPECT_STREQ(expected, buffer);
+        EXPECT_EQ(strlen(expected), n);
+    }
+
+private:
+    char buffer[256];
+};
+
+TEST_F(JsonArray_PrettyPrintTo_Tests, Empty)
+{
+    outputMustBe("[]");
+}
+
+TEST_F(JsonArray_PrettyPrintTo_Tests, OneElement)
+{
+    array.add(1);
+
+    outputMustBe(
+        "[\r\n"
+        "  1\r\n"
+        "]");
+}
+
+TEST_F(JsonArray_PrettyPrintTo_Tests, TwoElements)
+{
+    array.add(1);
+    array.add(2);
+
+    outputMustBe(
+        "[\r\n"
+        "  1,\r\n"
+        "  2\r\n"
+        "]");
+}
+
+TEST_F(JsonArray_PrettyPrintTo_Tests, EmptyNestedArrays)
+{
+    array.createNestedArray();
+    array.createNestedArray();
+
+    outputMustBe(
+        "[\r\n"
+        "  [],\r\n"
+        "  []\r\n"
+        "]");
+}
+
+TEST_F(JsonArray_PrettyPrintTo_Tests, NestedArrays)
+{
+    JsonArray nested1 = array.createNestedArray();
+    nested1.add(1);
+    nested1.add(2);
+
+    JsonArray nested2 = array.createNestedArray();
+    nested2.add(3);
+    nested2.add(4);
+
+    outputMustBe(
+        "[\r\n"
+        "  [\r\n"
+        "    1,\r\n"
+        "    2\r\n"
+        "  ],\r\n"
+        "  [\r\n"
+        "    3,\r\n"
+        "    4\r\n"
+        "  ]\r\n"
+        "]");
+}