Fold SkJSON into Skia/utils
It's a tiny, core-ish component -- might as well treat as such to
simplify dependencies.
Change-Id: I6f31ce2d151f9a629d88bfc7f15d64891d5150c0
Reviewed-on: https://skia-review.googlesource.com/135780
Reviewed-by: Mike Klein <mtklein@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Commit-Queue: Florin Malita <fmalita@chromium.org>
diff --git a/tests/JSONTest.cpp b/tests/JSONTest.cpp
new file mode 100644
index 0000000..72c71e3
--- /dev/null
+++ b/tests/JSONTest.cpp
@@ -0,0 +1,388 @@
+/*
+ * Copyright 2018 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "Test.h"
+
+#include "SkArenaAlloc.h"
+#include "SkJSON.h"
+#include "SkString.h"
+#include "SkStream.h"
+
+using namespace skjson;
+
+DEF_TEST(JSON_Parse, reporter) {
+ static constexpr struct {
+ const char* in;
+ const char* out;
+ } g_tests[] = {
+ { "" , nullptr },
+ { "[" , nullptr },
+ { "]" , nullptr },
+ { "[[]" , nullptr },
+ { "[]]" , nullptr },
+ { "[]f" , nullptr },
+ { "{" , nullptr },
+ { "}" , nullptr },
+ { "{{}" , nullptr },
+ { "{}}" , nullptr },
+ { "{}f" , nullptr },
+ { "{]" , nullptr },
+ { "[}" , nullptr },
+ { "{\"}" , nullptr },
+ { "[\"]" , nullptr },
+ { "1" , nullptr },
+ { "true" , nullptr },
+ { "false", nullptr },
+ { "null" , nullptr },
+
+ { "[nulll]" , nullptr },
+ { "[false2]", nullptr },
+ { "[true:]" , nullptr },
+
+ { "[1 2]" , nullptr },
+ { "[1,,2]" , nullptr },
+ { "[1,2,]" , nullptr },
+ { "[,1,2]" , nullptr },
+
+ { "[ \"foo" , nullptr },
+ { "[ \"fo\0o\" ]" , nullptr },
+
+ { "{\"\":{}" , nullptr },
+ { "{ null }" , nullptr },
+ { "{ \"k\" : }" , nullptr },
+ { "{ : null }" , nullptr },
+ { "{ \"k\" : : null }" , nullptr },
+ { "{ \"k\" : null , }" , nullptr },
+ { "{ \"k\" : null \"k\" : 1 }", nullptr },
+
+
+ { "[]" , "[]" },
+ { " \n\r\t [ \n\r\t ] \n\r\t " , "[]" },
+ { "[[]]" , "[[]]" },
+ { "[ null ]" , "[null]" },
+ { "[ true ]" , "[true]" },
+ { "[ false ]" , "[false]" },
+ { "[ 0 ]" , "[0]" },
+ { "[ 1 ]" , "[1]" },
+ { "[ 1.248 ]" , "[1.248]" },
+ { "[ \"\" ]" , "[\"\"]" },
+ { "[ \"foo{bar}baz\" ]" , "[\"foo{bar}baz\"]" },
+ { "[ \" f o o \" ]" , "[\" f o o \"]" },
+ { "[ \"123456\" ]" , "[\"123456\"]" },
+ { "[ \"1234567\" ]" , "[\"1234567\"]" },
+ { "[ \"12345678\" ]" , "[\"12345678\"]" },
+ { "[ \"123456789\" ]" , "[\"123456789\"]" },
+ { "[ null , true, false,0,12.8 ]", "[null,true,false,0,12.8]" },
+
+ { "{}" , "{}" },
+ { " \n\r\t { \n\r\t } \n\r\t " , "{}" },
+ { "{ \"k\" : null }" , "{\"k\":null}" },
+ { "{ \"foo{\" : \"bar}baz\" }" , "{\"foo{\":\"bar}baz\"}" },
+ { "{ \"k1\" : null, \"k2 \":0 }", "{\"k1\":null,\"k2 \":0}" },
+ { "{ \"k1\" : null, \"k1\":0 }" , "{\"k1\":null,\"k1\":0}" },
+
+ { "{ \"k1\" : null, \n\
+ \"k2\" : 0, \n\
+ \"k3\" : [ \n\
+ true, \r\n\
+ { \"kk1\" : \"foo\" , \n\
+ \"kk2\" : \"bar\" , \n\
+ \"kk3\" : 1.28 , \n\
+ \"kk4\" : [ 42 ] \n\
+ } , \n\
+ \"boo\" , \n\
+ null \n\
+ ] \n\
+ }",
+ "{\"k1\":null,\"k2\":0,\"k3\":[true,"
+ "{\"kk1\":\"foo\",\"kk2\":\"bar\",\"kk3\":1.28,\"kk4\":[42]},\"boo\",null]}" },
+ };
+
+ for (const auto& tst : g_tests) {
+ DOM dom(tst.in, strlen(tst.in));
+ const auto success = !dom.root().is<NullValue>();
+ REPORTER_ASSERT(reporter, success == (tst.out != nullptr));
+ if (!success) continue;
+
+ SkDynamicMemoryWStream str;
+ dom.write(&str);
+ str.write8('\0');
+
+ auto data = str.detachAsData();
+ REPORTER_ASSERT(reporter, !strcmp(tst.out, static_cast<const char*>(data->data())));
+ }
+
+}
+
+template <typename T, typename VT>
+static void check_primitive(skiatest::Reporter* reporter, const Value& v, T pv,
+ bool is_type) {
+
+ REPORTER_ASSERT(reporter, v.is<VT>() == is_type);
+ const VT* cast_t = v;
+ REPORTER_ASSERT(reporter, (cast_t != nullptr) == is_type);
+
+ if (is_type) {
+ REPORTER_ASSERT(reporter, &v.as<VT>() == cast_t);
+ REPORTER_ASSERT(reporter, *v.as<VT>() == pv);
+ }
+}
+
+template <typename T>
+static void check_vector(skiatest::Reporter* reporter, const Value& v, size_t expected_size,
+ bool is_vector) {
+ REPORTER_ASSERT(reporter, v.is<T>() == is_vector);
+ const T* cast_t = v;
+ REPORTER_ASSERT(reporter, (cast_t != nullptr) == is_vector);
+
+ if (is_vector) {
+ const auto& vec = v.as<T>();
+ REPORTER_ASSERT(reporter, &vec == cast_t);
+ REPORTER_ASSERT(reporter, vec.size() == expected_size);
+ REPORTER_ASSERT(reporter, vec.begin() != nullptr);
+ REPORTER_ASSERT(reporter, vec.end() == vec.begin() + expected_size);
+ }
+}
+
+static void check_string(skiatest::Reporter* reporter, const Value& v, const char* s) {
+ check_vector<StringValue>(reporter, v, s ? strlen(s) : 0, !!s);
+ if (s) {
+ REPORTER_ASSERT(reporter, !strcmp(v.as<StringValue>().begin(), s));
+ }
+}
+
+DEF_TEST(JSON_DOM_visit, reporter) {
+ static constexpr char json[] = "{ \n\
+ \"k1\": null, \n\
+ \"k2\": false, \n\
+ \"k3\": true, \n\
+ \"k4\": 42, \n\
+ \"k5\": .75, \n\
+ \"k6\": \"foo\", \n\
+ \"k7\": [ 1, true, \"bar\" ], \n\
+ \"k8\": { \"kk1\": 2, \"kk2\": false, \"kk1\": \"baz\" } \n\
+ }";
+
+ DOM dom(json, strlen(json));
+
+ const auto& jroot = dom.root().as<ObjectValue>();
+ REPORTER_ASSERT(reporter, jroot.is<ObjectValue>());
+
+ {
+ const auto& v = jroot["k1"];
+ REPORTER_ASSERT(reporter, v.is<NullValue>());
+
+ check_primitive<bool, BoolValue>(reporter, v, false, false);
+ check_primitive<float, NumberValue>(reporter, v, 0, false);
+
+ check_string(reporter, v, nullptr);
+ check_vector<ArrayValue >(reporter, v, 0, false);
+ check_vector<ObjectValue>(reporter, v, 0, false);
+ }
+
+ {
+ const auto& v = jroot["k2"];
+ REPORTER_ASSERT(reporter, !v.is<NullValue>());
+
+ check_primitive<bool, BoolValue>(reporter, v, false, true);
+ check_primitive<float, NumberValue>(reporter, v, 0, false);
+
+ check_string(reporter, v, nullptr);
+ check_vector<ArrayValue >(reporter, v, 0, false);
+ check_vector<ObjectValue>(reporter, v, 0, false);
+ }
+
+ {
+ const auto& v = jroot["k3"];
+ REPORTER_ASSERT(reporter, !v.is<NullValue>());
+
+ check_primitive<bool, BoolValue>(reporter, v, true, true);
+ check_primitive<float, NumberValue>(reporter, v, 0, false);
+
+ check_string(reporter, v, nullptr);
+ check_vector<ArrayValue >(reporter, v, 0, false);
+ check_vector<ObjectValue>(reporter, v, 0, false);
+ }
+
+ {
+ const auto& v = jroot["k4"];
+ REPORTER_ASSERT(reporter, !v.is<NullValue>());
+
+ check_primitive<bool, BoolValue>(reporter, v, false, false);
+ check_primitive<float, NumberValue>(reporter, v, 42, true);
+
+ check_string(reporter, v, nullptr);
+ check_vector<ArrayValue >(reporter, v, 0, false);
+ check_vector<ObjectValue>(reporter, v, 0, false);
+ }
+
+ {
+ const auto& v = jroot["k5"];
+ REPORTER_ASSERT(reporter, !v.is<NullValue>());
+
+ check_primitive<bool, BoolValue>(reporter, v, false, false);
+ check_primitive<float, NumberValue>(reporter, v, .75f, true);
+
+ check_string(reporter, v, nullptr);
+ check_vector<ArrayValue >(reporter, v, 0, false);
+ check_vector<ObjectValue>(reporter, v, 0, false);
+ }
+
+ {
+ const auto& v = jroot["k6"];
+ REPORTER_ASSERT(reporter, !v.is<NullValue>());
+
+ check_primitive<bool, BoolValue>(reporter, v, false, false);
+ check_primitive<float, NumberValue>(reporter, v, 0, false);
+
+ check_string(reporter, v, "foo");
+ check_vector<ArrayValue >(reporter, v, 0, false);
+ check_vector<ObjectValue>(reporter, v, 0, false);
+ }
+
+ {
+ const auto& v = jroot["k7"];
+ REPORTER_ASSERT(reporter, !v.is<NullValue>());
+
+ check_primitive<bool, BoolValue>(reporter, v, false, false);
+ check_primitive<float, NumberValue>(reporter, v, 0, false);
+
+ check_string(reporter, v, nullptr);
+ check_vector<ObjectValue>(reporter, v, 0, false);
+
+ check_vector<ArrayValue >(reporter, v, 3, true);
+ check_primitive<float, NumberValue>(reporter, v.as<ArrayValue>()[0], 1, true);
+ check_primitive<bool, BoolValue>(reporter, v.as<ArrayValue>()[1], true, true);
+ check_vector<StringValue>(reporter, v.as<ArrayValue>()[2], 3, true);
+ }
+
+ {
+ const auto& v = jroot["k8"];
+ REPORTER_ASSERT(reporter, !v.is<NullValue>());
+
+ check_primitive<bool, BoolValue>(reporter, v, false, false);
+ check_primitive<float, NumberValue>(reporter, v, 0, false);
+
+ check_string(reporter, v, nullptr);
+ check_vector<ArrayValue >(reporter, v, 0, false);
+
+ check_vector<ObjectValue>(reporter, v, 3, true);
+
+ const auto& m0 = v.as<ObjectValue>().begin()[0];
+ check_string(reporter, m0.fKey, "kk1");
+ check_primitive<float, NumberValue>(reporter, m0.fValue, 2, true);
+
+ const auto& m1 = v.as<ObjectValue>().begin()[1];
+ check_string(reporter, m1.fKey, "kk2");
+ check_primitive<bool, BoolValue>(reporter, m1.fValue, false, true);
+
+ const auto& m2 = v.as<ObjectValue>().begin()[2];
+ check_string(reporter, m2.fKey, "kk1");
+ check_string(reporter, m2.fValue, "baz");
+
+ REPORTER_ASSERT(reporter, v.as<ObjectValue>()[""].is<NullValue>());
+ REPORTER_ASSERT(reporter, v.as<ObjectValue>()["nosuchkey"].is<NullValue>());
+ check_string(reporter, v.as<ObjectValue>()["kk1"], "baz");
+ check_primitive<bool, BoolValue>(reporter, v.as<ObjectValue>()["kk2"], false, true);
+ }
+}
+
+template <typename T>
+void check_value(skiatest::Reporter* reporter, const Value& v, const char* expected_string) {
+ REPORTER_ASSERT(reporter, v.is<T>());
+
+ const T* cast_t = v;
+ REPORTER_ASSERT(reporter, cast_t == &v.as<T>());
+
+ const auto vstr = v.toString();
+ REPORTER_ASSERT(reporter, 0 == strcmp(expected_string, vstr.c_str()));
+}
+
+DEF_TEST(JSON_DOM_build, reporter) {
+ SkArenaAlloc alloc(4096);
+
+ const auto v0 = NullValue();
+ check_value<NullValue>(reporter, v0, "null");
+
+ const auto v1 = BoolValue(true);
+ check_value<BoolValue>(reporter, v1, "true");
+
+ const auto v2 = BoolValue(false);
+ check_value<BoolValue>(reporter, v2, "false");
+
+ const auto v3 = NumberValue(0);
+ check_value<NumberValue>(reporter, v3, "0");
+
+ const auto v4 = NumberValue(42);
+ check_value<NumberValue>(reporter, v4, "42");
+
+ const auto v5 = NumberValue(42.75f);
+ check_value<NumberValue>(reporter, v5, "42.75");
+
+ const auto v6 = StringValue(nullptr, 0, alloc);
+ check_value<StringValue>(reporter, v6, "\"\"");
+
+ const auto v7 = StringValue(" foo ", 5, alloc);
+ check_value<StringValue>(reporter, v7, "\" foo \"");
+
+ const auto v8 = StringValue(" foo bar baz ", 13, alloc);
+ check_value<StringValue>(reporter, v8, "\" foo bar baz \"");
+
+ const auto v9 = ArrayValue(nullptr, 0, alloc);
+ check_value<ArrayValue>(reporter, v9, "[]");
+
+ const Value values0[] = { v0, v3, v9 };
+ const auto v10 = ArrayValue(values0, SK_ARRAY_COUNT(values0), alloc);
+ check_value<ArrayValue>(reporter, v10, "[null,0,[]]");
+
+ const auto v11 = ObjectValue(nullptr, 0, alloc);
+ check_value<ObjectValue>(reporter, v11, "{}");
+
+ const Member members0[] = {
+ { StringValue("key_0", 5, alloc), v1 },
+ { StringValue("key_1", 5, alloc), v4 },
+ { StringValue("key_2", 5, alloc), v11 },
+ };
+ const auto v12 = ObjectValue(members0, SK_ARRAY_COUNT(members0), alloc);
+ check_value<ObjectValue>(reporter, v12, "{"
+ "\"key_0\":true,"
+ "\"key_1\":42,"
+ "\"key_2\":{}"
+ "}");
+
+ const Value values1[] = { v2, v6, v12 };
+ const auto v13 = ArrayValue(values1, SK_ARRAY_COUNT(values1), alloc);
+ check_value<ArrayValue>(reporter, v13, "["
+ "false,"
+ "\"\","
+ "{"
+ "\"key_0\":true,"
+ "\"key_1\":42,"
+ "\"key_2\":{}"
+ "}"
+ "]");
+
+ const Member members1[] = {
+ { StringValue("key_00", 6, alloc), v5 },
+ { StringValue("key_01", 6, alloc), v7 },
+ { StringValue("key_02", 6, alloc), v13 },
+ };
+ const auto v14 = ObjectValue(members1, SK_ARRAY_COUNT(members1), alloc);
+ check_value<ObjectValue>(reporter, v14, "{"
+ "\"key_00\":42.75,"
+ "\"key_01\":\" foo \","
+ "\"key_02\":["
+ "false,"
+ "\"\","
+ "{"
+ "\"key_0\":true,"
+ "\"key_1\":42,"
+ "\"key_2\":{}"
+ "}"
+ "]"
+ "}");
+}