diff --git a/Cargo.lock b/Cargo.lock
index fd45a40..3c2ef1e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -362,18 +362,18 @@ checksum = "eded382c5f5f786b989652c49544c4877d9f015cc22e145a5ea8ea66c2921cd2"
 
 [[package]]
 name = "serde"
-version = "1.0.219"
+version = "1.0.218"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5f0e2c6ed6606019b4e29e69dbaba95b11854410e5347d525002456dbbb786b6"
+checksum = "e8dfc9d19bdbf6d17e22319da49161d5d0108e4188e8b680aef6299eed22df60"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.219"
+version = "1.0.218"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b0276cf7f2c73365f7157c8123c21cd9a50fbbd844757af28ca1f5925fc2a00"
+checksum = "f09503e191f4e797cb8aac08e9a4a4695c5edf6a2e70e376d961ddd5c969f82b"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -403,7 +403,12 @@ version = "0.1.0"
 dependencies = [
  "axum",
  "bytes",
+ "flate2",
+ "http-body-util",
  "static-serve-macro",
+ "tokio",
+ "tower",
+ "zstd",
 ]
 
 [[package]]
diff --git a/static-serve/Cargo.toml b/static-serve/Cargo.toml
index 7f85e04..2e0d68a 100644
--- a/static-serve/Cargo.toml
+++ b/static-serve/Cargo.toml
@@ -14,5 +14,12 @@ static-serve-macro = { path = "../static-serve-macro", version = "0.1.0" }
 axum = { version = "0.8", default-features = false }
 bytes = "1.10"
 
+[dev-dependencies]
+http-body-util = "0.1"
+tokio = { version = "1.44", features = ["rt", "macros"] }
+tower = { version = "0.5", features = ["util"] }
+zstd = "0.13"
+flate2 = "1.1"
+
 [lints]
 workspace = true
diff --git a/static-serve/src/lib.rs b/static-serve/src/lib.rs
index faae84e..092a24d 100644
--- a/static-serve/src/lib.rs
+++ b/static-serve/src/lib.rs
@@ -127,66 +127,3 @@ where
         ),
     )
 }
-
-#[cfg(test)]
-mod tests {
-
-    #[test]
-    fn router_created_with_test_routes_lit_str() {
-        embed_assets!("test_assets/small", compress = false);
-        let router: Router<()> = static_router();
-        assert!(router.has_routes());
-    }
-
-    #[test]
-    fn router_created_not_compressed_because_not_worthwhile() {
-        embed_assets!("test_assets/small", compress = true);
-        let router: Router<()> = static_router();
-        assert!(router.has_routes());
-    }
-
-    #[test]
-    fn router_created_compressed() {
-        embed_assets!("test_assets/big", compress = true);
-        let router: Router<()> = static_router();
-        assert!(router.has_routes());
-    }
-
-    #[test]
-    fn router_created_with_test_routes_ident() {
-        embed_assets!(test_assets, compress = true);
-        let router: Router<()> = static_router();
-        assert!(router.has_routes());
-    }
-
-    #[test]
-    fn router_created_ignore_dirs_one() {
-        embed_assets!(test_assets, ignore_dirs = ["test_assets/big"]);
-        let router: Router<()> = static_router();
-        assert!(router.has_routes());
-    }
-
-    #[test]
-    fn router_created_ignore_dirs_two() {
-        embed_assets!(
-            test_assets,
-            ignore_dirs = ["test_assets/big", "test_assets/small"]
-        );
-        let router: Router<()> = static_router();
-        // all directories ignored, so router has no routes
-        assert!(!router.has_routes());
-    }
-
-    #[test]
-    fn router_created_ignore_dirs_with_defaults() {
-        // TODO: actually create one of the default ignore directories
-        // in `test_assets` to make sure this works
-        embed_assets!(
-            test_assets,
-            ignore_dirs = ["test_assets/big"],
-            use_default_ignore_dirs = true
-        );
-        let router: Router<()> = static_router();
-        assert!(router.has_routes());
-    }
-}
diff --git a/static-serve/tests/tests.rs b/static-serve/tests/tests.rs
new file mode 100644
index 0000000..fca6828
--- /dev/null
+++ b/static-serve/tests/tests.rs
@@ -0,0 +1,342 @@
+//! Integration tests for static-serve and macro
+use std::io::Read;
+
+use axum::{
+    body::Body,
+    http::{
+        header::{ACCEPT_ENCODING, CONTENT_ENCODING, IF_NONE_MATCH},
+        HeaderValue, Request, Response, StatusCode,
+    },
+    Router,
+};
+use http_body_util::BodyExt;
+use tower::ServiceExt;
+
+use static_serve_macro::embed_assets;
+
+enum Compression {
+    Zstd,
+    Gzip,
+    Both,
+    None,
+}
+
+async fn get_response(
+    router: Router<()>,
+    request: Request<axum::body::Body>,
+) -> Response<axum::body::Body> {
+    router
+        .into_service()
+        .oneshot(request)
+        .await
+        .expect("sending request")
+}
+
+fn create_request(route: &str, compression: &Compression) -> Request<axum::body::Body> {
+    let accept_encoding_header = match compression {
+        Compression::Both => Some(HeaderValue::from_static("zstd, gzip")),
+        Compression::Zstd => Some(HeaderValue::from_static("zstd")),
+        Compression::Gzip => Some(HeaderValue::from_static("gzip")),
+        Compression::None => None,
+    };
+    match accept_encoding_header {
+        Some(v) => Request::builder()
+            .uri(route)
+            .header(ACCEPT_ENCODING, v)
+            .body(Body::empty())
+            .unwrap(),
+        None => Request::builder().uri(route).body(Body::empty()).unwrap(),
+    }
+}
+
+fn decompress_zstd(compressed_body: &[u8]) -> Vec<u8> {
+    let mut decoder = zstd::Decoder::new(compressed_body).expect("failed to create decoder");
+    let mut decompressed_body = Vec::new();
+    std::io::copy(&mut decoder, &mut decompressed_body).expect("failed to decompress");
+    decompressed_body
+}
+
+fn decompress_gzip(compressed_body: &[u8]) -> Vec<u8> {
+    let mut decompressed_body = Vec::new();
+    let mut decoder = flate2::bufread::GzDecoder::new(compressed_body);
+    decoder
+        .read_to_end(&mut decompressed_body)
+        .expect("can't decode body");
+    decompressed_body
+}
+
+#[tokio::test]
+async fn router_created_with_lit_str() {
+    embed_assets!("../static-serve/test_assets/small", compress = false);
+    let router: Router<()> = static_router();
+    assert!(router.has_routes());
+    let request = create_request("/app.js", &Compression::None);
+    let response = get_response(router, request).await;
+    let (parts, body) = response.into_parts();
+    assert!(parts.status.is_success());
+    assert_eq!(
+        parts.headers.get("content-type").unwrap(),
+        "text/javascript"
+    );
+    assert!(parts.headers.contains_key("etag"));
+
+    let collected_body_bytes = body.into_data_stream().collect().await.unwrap().to_bytes();
+    let expected_body_bytes = include_bytes!("../../test_assets/small/app.js");
+    assert_eq!(*collected_body_bytes, *expected_body_bytes);
+}
+
+#[tokio::test]
+async fn router_created_uncompressed_because_not_worthwhile() {
+    embed_assets!("../static-serve/test_assets/small", compress = true);
+    let router: Router<()> = static_router();
+    assert!(router.has_routes());
+
+    let request = create_request("/app.js", &Compression::Zstd);
+    let response = get_response(router, request).await;
+    let (parts, body) = response.into_parts();
+    assert!(parts.status.is_success());
+    assert_eq!(
+        parts.headers.get("content-type").unwrap(),
+        "text/javascript"
+    );
+    assert!(parts.headers.contains_key("etag"));
+
+    let collected_body_bytes = body.into_data_stream().collect().await.unwrap().to_bytes();
+    // Response should not be compressed since the benefit is insignificant
+    let expected_body_bytes = include_bytes!("../../test_assets/small/app.js");
+    assert_eq!(*collected_body_bytes, *expected_body_bytes);
+}
+
+#[tokio::test]
+async fn router_created_compressed_zstd_only() {
+    embed_assets!("../static-serve/test_assets/big", compress = true);
+    let router: Router<()> = static_router();
+    assert!(router.has_routes());
+
+    let request = create_request("/app.js", &Compression::Zstd);
+    let response = get_response(router, request).await;
+    let (parts, body) = response.into_parts();
+    assert!(parts.status.is_success());
+    assert_eq!(
+        parts.headers.get(CONTENT_ENCODING),
+        Some(&HeaderValue::from_str("zstd").unwrap())
+    );
+    assert_eq!(
+        parts.headers.get("content-type").unwrap(),
+        "text/javascript"
+    );
+    assert!(parts.headers.contains_key("etag"));
+
+    let collected_body_bytes = body.into_data_stream().collect().await.unwrap().to_bytes();
+
+    // Decompress the response body
+    let decompressed_body = decompress_zstd(&collected_body_bytes);
+    assert_eq!(
+        decompressed_body,
+        include_bytes!("../../test_assets/big/app.js")
+    );
+
+    // Expect the compressed version
+    let expected_body_bytes = include_bytes!("../../test_assets/dist/app.js.zst");
+    assert_eq!(*collected_body_bytes, *expected_body_bytes);
+}
+
+#[tokio::test]
+async fn router_created_compressed_gzip_only() {
+    embed_assets!("../static-serve/test_assets/big", compress = true);
+    let router: Router<()> = static_router();
+    assert!(router.has_routes());
+
+    let request = create_request("/app.js", &Compression::Gzip);
+    let response = get_response(router, request).await;
+    let (parts, body) = response.into_parts();
+    assert!(parts.status.is_success());
+    assert_eq!(
+        parts.headers.get(CONTENT_ENCODING),
+        Some(&HeaderValue::from_str("gzip").unwrap())
+    );
+    assert_eq!(
+        parts.headers.get("content-type").unwrap(),
+        "text/javascript"
+    );
+    assert!(parts.headers.contains_key("etag"));
+
+    let collected_body_bytes = body.into_data_stream().collect().await.unwrap().to_bytes();
+    let decompressed_body = decompress_gzip(&collected_body_bytes);
+
+    assert_eq!(
+        decompressed_body,
+        include_bytes!("../../test_assets/big/app.js"),
+        "decompressed body is not as expected"
+    );
+
+    // Expect the compressed version
+    let expected_body_bytes = include_bytes!("../../test_assets/dist/app.js.gz");
+    assert_eq!(*collected_body_bytes, *expected_body_bytes);
+}
+
+#[tokio::test]
+async fn router_created_compressed_zstd_or_gzip_accepted() {
+    embed_assets!("../static-serve/test_assets/big", compress = true);
+    let router: Router<()> = static_router();
+    assert!(router.has_routes());
+
+    let request = create_request("/app.js", &Compression::Both);
+    let response = get_response(router, request).await;
+    let (parts, body) = response.into_parts();
+    assert!(parts.status.is_success());
+    assert_eq!(
+        parts.headers.get(CONTENT_ENCODING),
+        Some(&HeaderValue::from_str("zstd").unwrap())
+    );
+    assert_eq!(
+        parts.headers.get("content-type").unwrap(),
+        "text/javascript"
+    );
+    assert!(parts.headers.contains_key("etag"));
+
+    let collected_body_bytes = body.into_data_stream().collect().await.unwrap().to_bytes();
+    let decompressed_body = decompress_zstd(&collected_body_bytes);
+    assert_eq!(
+        decompressed_body,
+        include_bytes!("../../test_assets/big/app.js")
+    );
+
+    // Expect the compressed version
+    let expected_body_bytes = include_bytes!("../../test_assets/dist/app.js.zst");
+    assert_eq!(*collected_body_bytes, *expected_body_bytes);
+}
+
+#[tokio::test]
+async fn router_created_ignore_dirs_one() {
+    embed_assets!("../static-serve/test_assets", ignore_dirs = ["dist"]);
+    let router: Router<()> = static_router();
+    assert!(router.has_routes());
+
+    let request = create_request("/small/app.js", &Compression::None);
+    let response = get_response(router, request).await;
+    let (parts, body) = response.into_parts();
+    assert!(parts.status.is_success());
+
+    let collected_body_bytes = body.into_data_stream().collect().await.unwrap().to_bytes();
+    let expected_body_bytes = include_bytes!("../../test_assets/small/app.js");
+
+    assert_eq!(
+        parts.headers.get("content-type").unwrap(),
+        "text/javascript"
+    );
+    assert!(parts.headers.contains_key("etag"));
+    assert_eq!(*collected_body_bytes, *expected_body_bytes);
+}
+
+#[tokio::test]
+async fn router_created_ignore_dirs_three() {
+    embed_assets!(
+        "../static-serve/test_assets",
+        ignore_dirs = ["big", "small", "dist"]
+    );
+    let router: Router<()> = static_router();
+    // all directories ignored, so router has no routes
+    assert!(!router.has_routes());
+
+    let request = create_request("/app.js", &Compression::None);
+    let response = get_response(router, request).await;
+    let (parts, body) = response.into_parts();
+    let collected_body_bytes = body.into_data_stream().collect().await.unwrap().to_bytes();
+
+    // Expect a 404 Not Found with empty body
+    assert_eq!(parts.status, StatusCode::NOT_FOUND);
+    assert!(collected_body_bytes.is_empty());
+}
+
+#[tokio::test]
+async fn handles_conditional_requests_same_etag() {
+    embed_assets!("../static-serve/test_assets/big", compress = true);
+    let router: Router<()> = static_router();
+    assert!(router.has_routes());
+
+    let request = create_request("/app.js", &Compression::Zstd);
+    let response = get_response(router.clone(), request).await;
+    let (parts, body) = response.into_parts();
+    assert!(parts.status.is_success());
+    assert_eq!(
+        parts.headers.get(CONTENT_ENCODING),
+        Some(&HeaderValue::from_str("zstd").unwrap())
+    );
+    assert_eq!(
+        parts.headers.get("content-type").unwrap(),
+        "text/javascript"
+    );
+    let etag = parts
+        .headers
+        .get("etag")
+        .expect("no etag header when there should be one!");
+
+    let collected_body_bytes = body.into_data_stream().collect().await.unwrap().to_bytes();
+    let decompressed_body = decompress_zstd(&collected_body_bytes);
+    assert_eq!(
+        decompressed_body,
+        include_bytes!("../../test_assets/big/app.js")
+    );
+
+    // Expect the compressed version
+    let expected_body_bytes = include_bytes!("../../test_assets/dist/app.js.zst");
+    assert_eq!(*collected_body_bytes, *expected_body_bytes);
+
+    let request = Request::builder()
+        .uri("/app.js")
+        .header(IF_NONE_MATCH, etag)
+        .header(ACCEPT_ENCODING, "zstd")
+        .body(Body::empty())
+        .unwrap();
+    let response = get_response(router, request).await;
+    let (parts, body) = response.into_parts();
+    assert_eq!(parts.status, StatusCode::NOT_MODIFIED);
+    assert_eq!(
+        parts
+            .headers
+            .get("content-length")
+            .expect("no content-length header!"),
+        "0"
+    );
+    let collected_body_bytes = body.into_data_stream().collect().await.unwrap().to_bytes();
+    assert!(collected_body_bytes.is_empty());
+}
+
+#[tokio::test]
+async fn handles_conditional_requests_different_etag() {
+    embed_assets!("../static-serve/test_assets/big", compress = true);
+    let router: Router<()> = static_router();
+    assert!(router.has_routes());
+
+    let request = Request::builder()
+        .uri("/app.js")
+        .header(IF_NONE_MATCH, "n0t4r34l3t4g")
+        .header(ACCEPT_ENCODING, "zstd")
+        .body(Body::empty())
+        .unwrap();
+    let response = get_response(router, request).await;
+
+    let (parts, body) = response.into_parts();
+    assert_eq!(parts.status, StatusCode::OK);
+    assert_ne!(
+        parts
+            .headers
+            .get("content-length")
+            .expect("no content-length header!"),
+        "0",
+        "content length is unexpectedly zero!"
+    );
+
+    let collected_body_bytes = body.into_data_stream().collect().await.unwrap().to_bytes();
+    assert!(!collected_body_bytes.is_empty());
+    let decompressed_body = decompress_zstd(&collected_body_bytes);
+    assert_eq!(
+        decompressed_body,
+        include_bytes!("../../test_assets/big/app.js")
+    );
+
+    // Expect the compressed version
+    let expected_body_bytes = include_bytes!("../../test_assets/dist/app.js.zst");
+    assert_eq!(*collected_body_bytes, *expected_body_bytes);
+}
diff --git a/test_assets/big/app.js b/test_assets/big/app.js
new file mode 100644
index 0000000..2f65807
--- /dev/null
+++ b/test_assets/big/app.js
@@ -0,0 +1,20 @@
+console.log("Hello, world!");
+console.log("Hello, world!");
+console.log("Hello, world!");
+console.log("Hello, world!");
+console.log("Hello, world!");
+console.log("Hello, world!");
+console.log("Hello, world!");
+console.log("Hello, world!");
+console.log("Hello, world!");
+console.log("Hello, world!");
+console.log("Hello, world!");
+console.log("Hello, world!");
+console.log("Hello, world!");
+console.log("Hello, world!");
+console.log("Hello, world!");
+console.log("Hello, world!");
+console.log("Hello, world!");
+console.log("Hello, world!");
+console.log("Hello, world!");
+console.log("Hello, world!");
diff --git a/test_assets/big/styles.css b/test_assets/big/styles.css
new file mode 100644
index 0000000..b3be45d
--- /dev/null
+++ b/test_assets/big/styles.css
@@ -0,0 +1,50 @@
+
+
+
+
+body {
+    
+    
+    background:             black       ;
+
+}
+
+
+
+
+body {
+    
+    
+    background:             black       ;
+    
+}
+
+
+
+
+body {
+    
+    
+    background:             black       ;
+    
+}
+
+
+
+
+body {
+    
+    
+    background:             black       ;
+    
+}
+
+
+
+
+body {
+    
+    
+    background:             black       ;
+    
+}
\ No newline at end of file
diff --git a/test_assets/dist/app.js.gz b/test_assets/dist/app.js.gz
new file mode 100644
index 0000000..9617302
Binary files /dev/null and b/test_assets/dist/app.js.gz differ
diff --git a/test_assets/dist/app.js.zst b/test_assets/dist/app.js.zst
new file mode 100644
index 0000000..fd35a29
Binary files /dev/null and b/test_assets/dist/app.js.zst differ
diff --git a/test_assets/dist/ignore_me_plz.txt b/test_assets/dist/ignore_me_plz.txt
new file mode 100644
index 0000000..12686e5
--- /dev/null
+++ b/test_assets/dist/ignore_me_plz.txt
@@ -0,0 +1 @@
+This file should only get included and served when the default ignore list is disabled.
\ No newline at end of file
diff --git a/test_assets/small/app.js b/test_assets/small/app.js
new file mode 100644
index 0000000..a8141d3
--- /dev/null
+++ b/test_assets/small/app.js
@@ -0,0 +1 @@
+console.log("Hello, world!");
diff --git a/test_assets/small/styles.css b/test_assets/small/styles.css
new file mode 100644
index 0000000..e378fbb
--- /dev/null
+++ b/test_assets/small/styles.css
@@ -0,0 +1 @@
+body { background: black; }
\ No newline at end of file