From 58a69ea8688b4d1ec7c70caffaf30a608bccd4bc Mon Sep 17 00:00:00 2001
From: Daniel Schadt <kingdread@gmx.de>
Date: Tue, 11 Aug 2026 16:07:39 +0200
Subject: add integration tests for the Rust side of things

---
 hittekaart/tests/generate.rs           |  97 +++++++++++++++++++++++++++++++++
 test-assets/Synthetic_BRouter_1.gpx.gz | Bin 0 -> 697 bytes
 2 files changed, 97 insertions(+)
 create mode 100644 hittekaart/tests/generate.rs
 create mode 100644 test-assets/Synthetic_BRouter_1.gpx.gz

diff --git a/hittekaart/tests/generate.rs b/hittekaart/tests/generate.rs
new file mode 100644
index 0000000..3c80a11
--- /dev/null
+++ b/hittekaart/tests/generate.rs
@@ -0,0 +1,97 @@
+use std::{
+    collections::hash_map::RandomState,
+    env,
+    error::Error,
+    fs,
+    hash::{BuildHasher, Hasher},
+    path::PathBuf,
+};
+
+use hittekaart::{
+    gpx,
+    renderer::{self, heatmap},
+    storage::{self, Storage},
+};
+
+const ZOOM: u32 = 10;
+
+fn prepare() -> heatmap::HeatCounter {
+    let track = gpx::extract_from_file("../test-assets/Synthetic_BRouter_1.gpx.gz", gpx::Compression::Gzip).unwrap();
+    renderer::prepare(
+        &heatmap::Renderer,
+        ZOOM,
+        &[track],
+        || Ok(()),
+    ).unwrap()
+}
+
+#[test]
+fn test_osmand() {
+    let heat = prepare();
+    let mut store = storage::OsmAnd::open(":memory:").unwrap();
+    store.prepare().unwrap();
+    store.prepare_zoom(ZOOM).unwrap();
+    renderer::colorize(
+        &heatmap::Renderer,
+        heat,
+        |tile| {
+            store.store(ZOOM, tile.x, tile.y, &tile.data)
+        },
+    ).unwrap();
+    store.finish().unwrap();
+}
+
+#[test]
+fn test_mbtiles() {
+    let heat = prepare();
+    let mut store = storage::MbTiles::open(":memory:").unwrap()
+        .with_name("new name".into())
+        .with_description(Some("new description".into()));
+    store.prepare().unwrap();
+    store.prepare_zoom(ZOOM).unwrap();
+    renderer::colorize(
+        &heatmap::Renderer,
+        heat,
+        |tile| {
+            store.store(ZOOM, tile.x, tile.y, &tile.data)
+        },
+    ).unwrap();
+    store.finish().unwrap();
+}
+
+// Zero dependency random number generator
+fn rand() -> u64 {
+    RandomState::new().build_hasher().finish()
+}
+
+fn run_folder(base: PathBuf) -> Result<(), Box<dyn Error>> {
+    let heat = prepare();
+    let mut store = storage::Folder::new(base);
+    store.prepare()?;
+    store.prepare_zoom(ZOOM)?;
+    renderer::colorize(
+        &heatmap::Renderer,
+        heat,
+        |tile| {
+            store.store(ZOOM, tile.x, tile.y, &tile.data)
+        },
+    )?;
+    store.finish()?;
+    Ok(())
+}
+
+#[test]
+fn test_folder() {
+    let mut tmp = env::temp_dir();
+    tmp.push(&format!("hitte_test_{}", rand()));
+
+    fs::create_dir(&tmp).unwrap();
+
+    let result = run_folder(tmp.clone());
+
+    fs::remove_dir_all(&tmp).unwrap();
+
+    if let Err(e) = result {
+        panic!("{}", e);
+    }
+}
diff --git a/test-assets/Synthetic_BRouter_1.gpx.gz b/test-assets/Synthetic_BRouter_1.gpx.gz
new file mode 100644
index 0000000..e380fc7
Binary files /dev/null and b/test-assets/Synthetic_BRouter_1.gpx.gz differ
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