migrate style_parser tests to use info and style json fixtures

test/style_parser.cpp

@@ -0,0 +1,106 @@
+#include "gtest/gtest.h"
+
+#include <mbgl/style/style.hpp>
+#include <mbgl/util/io.hpp>
+
+#include <rapidjson/document.h>
+
+#include "./fixtures/fixture_log.hpp"
+
+#include <iostream>
+#include <fstream>
+
+#include <dirent.h>
+
+const std::string base_directory = []{
+    std::string fn = __FILE__;
+    fn.erase(fn.find_last_of("/"));
+    return fn + "/fixtures/style_parser";
+}();
+
+using namespace mbgl;
+
+typedef std::pair<uint32_t, std::string> Message;
+typedef std::vector<Message> Messages;
+
+class StyleParserTest : public ::testing::TestWithParam<std::string> {};
+
+TEST_P(StyleParserTest, render) {
+    const std::string &base = base_directory + "/" + GetParam();
+
+    const std::string style_path = base + ".style.json";
+    const std::string info = util::read_file(base + ".info.json");
+
+    // Parse settings.
+    rapidjson::Document doc;
+    doc.Parse<0>((const char *const)info.c_str());
+    ASSERT_EQ(false, doc.HasParseError());
+    ASSERT_EQ(true, doc.IsObject());
+
+    std::ifstream stylefile(style_path);
+    ASSERT_TRUE(stylefile.good());
+    std::stringstream stylejson;
+    stylejson << stylefile.rdbuf();
+
+    Style style;
+    style.loadJSON((const uint8_t *)stylejson.str().c_str());
+
+    for (auto it = doc.MemberBegin(), end = doc.MemberEnd(); it != end; it++) {
+        const FixtureLogBackend &log = Log::Set<FixtureLogBackend>();
+
+        const std::string name { it->name.GetString(), it->name.GetStringLength() };
+        const rapidjson::Value &value = it->value;
+        ASSERT_EQ(true, value.IsObject());
+
+        if (value.HasMember("log")) {
+            const rapidjson::Value &js_log = value["log"];
+            ASSERT_EQ(true, js_log.IsArray());
+            for (rapidjson::SizeType i = 0; i < js_log.Size(); i++) {
+                const rapidjson::Value &js_entry = js_log[i];
+                ASSERT_EQ(true, js_entry.IsArray());
+                if (js_entry.Size() == 4) {
+                    const uint32_t count = js_entry[rapidjson::SizeType(0)].GetUint();
+                    if (js_entry[rapidjson::SizeType(3)].IsString()) {
+                        const FixtureLogBackend::LogMessage message {
+                            EventSeverityClass(js_entry[rapidjson::SizeType(1)].GetString()),
+                            EventClass(js_entry[rapidjson::SizeType(2)].GetString()),
+                            js_entry[rapidjson::SizeType(3)].GetString()
+                        };
+                        EXPECT_EQ(count, log.count(message)) << "Message: " << message << std::endl;
+                    }
+                } else {
+                    FAIL();
+                }
+            }
+        }
+
+        const auto &unchecked = log.unchecked();
+        if (unchecked.size()) {
+            std::cerr << "Unchecked Log Messages (" << base << "): "
+                << std::endl << unchecked;
+        }
+
+        ASSERT_EQ(0, unchecked.size());
+    }
+}
+
+INSTANTIATE_TEST_CASE_P(StyleParser, StyleParserTest, ::testing::ValuesIn([] {
+    std::vector<std::string> names;
+    const std::string ending = ".info.json";
+
+    DIR *dir = opendir(base_directory.c_str());
+    if (dir == nullptr) {
+        return names;
+    }
+
+    for (dirent *dp = nullptr; (dp = readdir(dir)) != nullptr;) {
+        const std::string name = dp->d_name;
+        if (name.length() >= ending.length() && name.compare(name.length() - ending.length(), ending.length(), ending) == 0) {
+            names.push_back(name.substr(0, name.length() - ending.length()));
+        }
+    }
+
+    closedir(dir);
+
+    return names;
+}()));