diff --git a/Cargo.lock b/Cargo.lock
index a2c0f63..ca03222 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,6 +2,21 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "addr2line"
+version = "0.24.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dfbe277e56a376000877090da837660b4427aad530e3028d44e0bffe4f89a1c1"
+dependencies = [
+ "gimli",
+]
+
+[[package]]
+name = "adler2"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "512761e0bb2578dd7380c6baaa0f4ce03e84f95e960231d1dec8bf4d7d6e2627"
+
 [[package]]
 name = "android-tzdata"
 version = "0.1.1"
@@ -23,6 +38,21 @@ version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
 
+[[package]]
+name = "backtrace"
+version = "0.3.74"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8d82cb332cdfaed17ae235a638438ac4d4839913cc2af585c3c6746e8f8bee1a"
+dependencies = [
+ "addr2line",
+ "cfg-if",
+ "libc",
+ "miniz_oxide",
+ "object",
+ "rustc-demangle",
+ "windows-targets",
+]
+
 [[package]]
 name = "base-x"
 version = "0.2.11"
@@ -315,6 +345,12 @@ dependencies = [
  "wasi",
 ]
 
+[[package]]
+name = "gimli"
+version = "0.31.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "07e28edb80900c19c28f1072f2e8aeca7fa06b23cd4169cefe1af5aa3260783f"
+
 [[package]]
 name = "group"
 version = "0.13.0"
@@ -497,6 +533,15 @@ version = "2.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
 
+[[package]]
+name = "miniz_oxide"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2d80299ef12ff69b16a84bb182e3b9df68b5a91574d3d4fa6e41b65deec4df1"
+dependencies = [
+ "adler2",
+]
+
 [[package]]
 name = "multibase"
 version = "0.9.1"
@@ -561,6 +606,15 @@ dependencies = [
  "libm",
 ]
 
+[[package]]
+name = "object"
+version = "0.36.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aedf0a2d09c573ed1d8d85b30c119153926a2b36dce0ab28322c09a117a4683e"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "once_cell"
 version = "1.20.2"
@@ -614,6 +668,12 @@ dependencies = [
  "base64ct",
 ]
 
+[[package]]
+name = "pin-project-lite"
+version = "0.2.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bda66fc9667c18cb2758a2ac84d1167245054bcf85d5d1aaa6923f45801bdd02"
+
 [[package]]
 name = "pkcs1"
 version = "0.7.5"
@@ -752,6 +812,12 @@ dependencies = [
  "zeroize",
 ]
 
+[[package]]
+name = "rustc-demangle"
+version = "0.1.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "719b953e2095829ee67db738b3bfa9fa368c94900df327b3f07fe6e794d2fe1f"
+
 [[package]]
 name = "ryu"
 version = "1.0.18"
@@ -979,6 +1045,28 @@ dependencies = [
  "time-core",
 ]
 
+[[package]]
+name = "tokio"
+version = "1.40.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2b070231665d27ad9ec9b8df639893f46727666c6767db40317fbe920a5d998"
+dependencies = [
+ "backtrace",
+ "pin-project-lite",
+ "tokio-macros",
+]
+
+[[package]]
+name = "tokio-macros"
+version = "2.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "693d596312e88961bc67d7f1f97af8a70227d9f90c31bba5806eec004978d752"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.82",
+]
+
 [[package]]
 name = "typenum"
 version = "1.17.0"
@@ -1156,6 +1244,7 @@ checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
 name = "xdid"
 version = "0.0.0"
 dependencies = [
+ "tokio",
  "xdid-core",
  "xdid-method-key",
  "xdid-method-web",
diff --git a/crates/xdid/Cargo.toml b/crates/xdid/Cargo.toml
index 102e472..98f0745 100644
--- a/crates/xdid/Cargo.toml
+++ b/crates/xdid/Cargo.toml
@@ -15,3 +15,6 @@ did-web = ["dep:xdid-method-web"]
 xdid-core = { path = "../xdid-core" }
 xdid-method-key = { path = "../xdid-method-key", optional = true }
 xdid-method-web = { path = "../xdid-method-web", optional = true }
+
+[dev-dependencies]
+tokio = { version = "1.40.0", features = ["macros", "rt"] }
diff --git a/crates/xdid/src/resolver.rs b/crates/xdid/src/resolver.rs
index fe11307..857e8b9 100644
--- a/crates/xdid/src/resolver.rs
+++ b/crates/xdid/src/resolver.rs
@@ -27,3 +27,19 @@ impl DidResolver {
         Err(ResolutionError::UnsupportedMethod)
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use xdid_method_key::{keys::p256::P256KeyPair, DidKey};
+
+    use super::*;
+
+    #[tokio::test]
+    async fn test_resolve_did_key() {
+        let did = DidKey::new(P256KeyPair::generate().unwrap().to_public()).to_did();
+
+        let resolver = DidResolver::default();
+        let document = resolver.resolve(&did).await.unwrap();
+        assert_eq!(document.id, did);
+    }
+}