WIP merge cyclically dependent components into one big component

1 files changed, 210 insertions, 0 deletions

diff --git a/src/tangara/database/test/test_database.cpp b/src/tangara/database/test/test_database.cpp
new file mode 100644
index 00000000..6aec9bfb
--- /dev/null
+++ b/src/tangara/database/test/test_database.cpp
@@ -0,0 +1,210 @@
+/*
+ * Copyright 2023 jacqueline <me@jacqueline.id.au>
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#include "database.hpp"
+
+#include <stdint.h>
+#include <iomanip>
+#include <map>
+#include <memory>
+#include <string>
+
+#include "catch2/catch.hpp"
+#include "driver_cache.hpp"
+#include "esp_log.h"
+#include "file_gatherer.hpp"
+#include "i2c_fixture.hpp"
+#include "leveldb/db.h"
+#include "spi_fixture.hpp"
+#include "tag_parser.hpp"
+#include "track.hpp"
+
+namespace database {
+
+class TestBackends : public IFileGatherer, public ITagParser {
+ public:
+  std::map<std::pmr::string, TrackTags> tracks;
+
+  auto MakeTrack(const std::pmr::string& path, const std::pmr::string& title)
+      -> void {
+    TrackTags tags;
+    tags.encoding = Encoding::kMp3;
+    tags.title = title;
+    tracks[path] = tags;
+  }
+
+  auto FindFiles(const std::pmr::string& root,
+                 std::function<void(const std::pmr::string&)> cb)
+      -> void override {
+    for (auto keyval : tracks) {
+      std::invoke(cb, keyval.first);
+    }
+  }
+
+  auto ReadAndParseTags(const std::pmr::string& path, TrackTags* out)
+      -> bool override {
+    if (tracks.contains(path)) {
+      *out = tracks.at(path);
+      return true;
+    }
+    return false;
+  }
+};
+
+TEST_CASE("track database", "[integration]") {
+  I2CFixture i2c;
+  SpiFixture spi;
+  drivers::DriverCache drivers;
+  auto storage = drivers.AcquireStorage();
+
+  Database::Destroy();
+
+  TestBackends tracks;
+  auto open_res = Database::Open(&tracks, &tracks);
+  REQUIRE(open_res.has_value());
+  std::unique_ptr<Database> db(open_res.value());
+
+  SECTION("empty database") {
+    std::unique_ptr<Result<Track>> res(db->GetTracks(10).get());
+    REQUIRE(res->values().size() == 0);
+  }
+
+  SECTION("add new tracks") {
+    tracks.MakeTrack("track1.mp3", "Track 1");
+    tracks.MakeTrack("track2.wav", "Track 2");
+    tracks.MakeTrack("track3.exe", "Track 3");
+
+    db->Update();
+
+    std::unique_ptr<Result<Track>> res(db->GetTracks(10).get());
+    REQUIRE(res->values().size() == 3);
+    CHECK(*res->values().at(0).tags().title == "Track 1");
+    CHECK(res->values().at(0).data().id() == 1);
+    CHECK(*res->values().at(1).tags().title == "Track 2");
+    CHECK(res->values().at(1).data().id() == 2);
+    CHECK(*res->values().at(2).tags().title == "Track 3");
+    CHECK(res->values().at(2).data().id() == 3);
+
+    SECTION("update with no filesystem changes") {
+      db->Update();
+
+      std::unique_ptr<Result<Track>> new_res(db->GetTracks(10).get());
+      REQUIRE(new_res->values().size() == 3);
+      CHECK(res->values().at(0) == new_res->values().at(0));
+      CHECK(res->values().at(1) == new_res->values().at(1));
+      CHECK(res->values().at(2) == new_res->values().at(2));
+    }
+
+    SECTION("update with all tracks gone") {
+      tracks.tracks.clear();
+
+      db->Update();
+
+      std::unique_ptr<Result<Track>> new_res(db->GetTracks(10).get());
+      CHECK(new_res->values().size() == 0);
+
+      SECTION("update with one track returned") {
+        tracks.MakeTrack("track2.wav", "Track 2");
+
+        db->Update();
+
+        std::unique_ptr<Result<Track>> new_res(db->GetTracks(10).get());
+        REQUIRE(new_res->values().size() == 1);
+        CHECK(res->values().at(1) == new_res->values().at(0));
+      }
+    }
+
+    SECTION("update with one track gone") {
+      tracks.tracks.erase("track2.wav");
+
+      db->Update();
+
+      std::unique_ptr<Result<Track>> new_res(db->GetTracks(10).get());
+      REQUIRE(new_res->values().size() == 2);
+      CHECK(res->values().at(0) == new_res->values().at(0));
+      CHECK(res->values().at(2) == new_res->values().at(1));
+    }
+
+    SECTION("update with tags changed") {
+      tracks.MakeTrack("track3.exe", "The Track 3");
+
+      db->Update();
+
+      std::unique_ptr<Result<Track>> new_res(db->GetTracks(10).get());
+      REQUIRE(new_res->values().size() == 3);
+      CHECK(res->values().at(0) == new_res->values().at(0));
+      CHECK(res->values().at(1) == new_res->values().at(1));
+      CHECK(*new_res->values().at(2).tags().title == "The Track 3");
+      // The id should not have changed, since this was just a tag update.
+      CHECK(res->values().at(2).data().id() ==
+            new_res->values().at(2).data().id());
+    }
+
+    SECTION("update with one new track") {
+      tracks.MakeTrack("my track.midi", "Track 1 (nightcore remix)");
+
+      db->Update();
+
+      std::unique_ptr<Result<Track>> new_res(db->GetTracks(10).get());
+      REQUIRE(new_res->values().size() == 4);
+      CHECK(res->values().at(0) == new_res->values().at(0));
+      CHECK(res->values().at(1) == new_res->values().at(1));
+      CHECK(res->values().at(2) == new_res->values().at(2));
+      CHECK(*new_res->values().at(3).tags().title ==
+            "Track 1 (nightcore remix)");
+      CHECK(new_res->values().at(3).data().id() == 4);
+    }
+
+    SECTION("get tracks with pagination") {
+      std::unique_ptr<Result<Track>> res(db->GetTracks(1).get());
+
+      REQUIRE(res->values().size() == 1);
+      CHECK(res->values().at(0).data().id() == 1);
+      REQUIRE(res->next_page());
+
+      res.reset(db->GetPage(&res->next_page().value()).get());
+
+      REQUIRE(res->values().size() == 1);
+      CHECK(res->values().at(0).data().id() == 2);
+      REQUIRE(res->next_page());
+
+      res.reset(db->GetPage(&res->next_page().value()).get());
+
+      REQUIRE(res->values().size() == 1);
+      CHECK(res->values().at(0).data().id() == 3);
+      REQUIRE(!res->next_page());
+
+      SECTION("page backwards") {
+        REQUIRE(res->prev_page());
+
+        res.reset(db->GetPage(&res->prev_page().value()).get());
+
+        REQUIRE(res->values().size() == 1);
+        CHECK(res->values().at(0).data().id() == 2);
+        REQUIRE(res->prev_page());
+
+        res.reset(db->GetPage(&res->prev_page().value()).get());
+
+        REQUIRE(res->values().size() == 1);
+        CHECK(res->values().at(0).data().id() == 1);
+        REQUIRE(!res->prev_page());
+
+        SECTION("page forwards again") {
+          REQUIRE(res->next_page());
+
+          res.reset(db->GetPage(&res->next_page().value()).get());
+
+          REQUIRE(res->values().size() == 1);
+          CHECK(res->values().at(0).data().id() == 2);
+          CHECK(res->next_page());
+          CHECK(res->prev_page());
+        }
+      }
+    }
+  }
+}
+
+}  // namespace database