diff --git a/crates/uv-resolver/src/lock.rs b/crates/uv-resolver/src/lock.rs
index 658b7972c..e5321ac1a 100644
--- a/crates/uv-resolver/src/lock.rs
+++ b/crates/uv-resolver/src/lock.rs
@@ -2372,6 +2372,62 @@ name = "anyio"
 version = "4.3.0"
 source = { path = "file:///foo/bar" }
 wheels = [{ url = "file:///foo/bar/anyio-4.3.0-py3-none-any.whl", hash = "sha256:048e05d0f6caeed70d731f3db756d35dcc1f35747c8c403364a8332c630441b8" }]
+"#;
+        let result: Result<Lock, _> = toml::from_str(data);
+        insta::assert_debug_snapshot!(result);
+    }
+
+    #[test]
+    fn source_direct_no_subdir() {
+        let data = r#"
+version = 1
+
+[[distribution]]
+name = "anyio"
+version = "4.3.0"
+source = { url = "https://burntsushi.net" }
+"#;
+        let result: Result<Lock, _> = toml::from_str(data);
+        insta::assert_debug_snapshot!(result);
+    }
+
+    #[test]
+    fn source_direct_has_subdir() {
+        let data = r#"
+version = 1
+
+[[distribution]]
+name = "anyio"
+version = "4.3.0"
+source = { url = "https://burntsushi.net", subdirectory = "wat/foo/bar" }
+"#;
+        let result: Result<Lock, _> = toml::from_str(data);
+        insta::assert_debug_snapshot!(result);
+    }
+
+    #[test]
+    fn source_directory() {
+        let data = r#"
+version = 1
+
+[[distribution]]
+name = "anyio"
+version = "4.3.0"
+source = { directory = "path/to/dir" }
+"#;
+        let result: Result<Lock, _> = toml::from_str(data);
+        insta::assert_debug_snapshot!(result);
+    }
+
+    #[test]
+    fn source_editable() {
+        let data = r#"
+version = 1
+
+[[distribution]]
+name = "anyio"
+version = "4.3.0"
+source = { editable = "path/to/dir" }
 "#;
         let result: Result<Lock, _> = toml::from_str(data);
         insta::assert_debug_snapshot!(result);
diff --git a/crates/uv-resolver/src/snapshots/uv_resolver__lock__tests__source_direct_has_subdir.snap b/crates/uv-resolver/src/snapshots/uv_resolver__lock__tests__source_direct_has_subdir.snap
new file mode 100644
index 000000000..86efde2bb
--- /dev/null
+++ b/crates/uv-resolver/src/snapshots/uv_resolver__lock__tests__source_direct_has_subdir.snap
@@ -0,0 +1,77 @@
+---
+source: crates/uv-resolver/src/lock.rs
+expression: result
+---
+Ok(
+    Lock {
+        version: 1,
+        distributions: [
+            Distribution {
+                id: DistributionId {
+                    name: PackageName(
+                        "anyio",
+                    ),
+                    version: "4.3.0",
+                    source: Direct(
+                        Url {
+                            scheme: "https",
+                            cannot_be_a_base: false,
+                            username: "",
+                            password: None,
+                            host: Some(
+                                Domain(
+                                    "burntsushi.net",
+                                ),
+                            ),
+                            port: None,
+                            path: "/",
+                            query: None,
+                            fragment: None,
+                        },
+                        DirectSource {
+                            subdirectory: Some(
+                                "wat/foo/bar",
+                            ),
+                        },
+                    ),
+                },
+                sdist: None,
+                wheels: [],
+                dependencies: [],
+                optional_dependencies: {},
+                dev_dependencies: {},
+            },
+        ],
+        requires_python: None,
+        by_id: {
+            DistributionId {
+                name: PackageName(
+                    "anyio",
+                ),
+                version: "4.3.0",
+                source: Direct(
+                    Url {
+                        scheme: "https",
+                        cannot_be_a_base: false,
+                        username: "",
+                        password: None,
+                        host: Some(
+                            Domain(
+                                "burntsushi.net",
+                            ),
+                        ),
+                        port: None,
+                        path: "/",
+                        query: None,
+                        fragment: None,
+                    },
+                    DirectSource {
+                        subdirectory: Some(
+                            "wat/foo/bar",
+                        ),
+                    },
+                ),
+            }: 0,
+        },
+    },
+)
diff --git a/crates/uv-resolver/src/snapshots/uv_resolver__lock__tests__source_direct_no_subdir.snap b/crates/uv-resolver/src/snapshots/uv_resolver__lock__tests__source_direct_no_subdir.snap
new file mode 100644
index 000000000..e2785ae7e
--- /dev/null
+++ b/crates/uv-resolver/src/snapshots/uv_resolver__lock__tests__source_direct_no_subdir.snap
@@ -0,0 +1,73 @@
+---
+source: crates/uv-resolver/src/lock.rs
+expression: result
+---
+Ok(
+    Lock {
+        version: 1,
+        distributions: [
+            Distribution {
+                id: DistributionId {
+                    name: PackageName(
+                        "anyio",
+                    ),
+                    version: "4.3.0",
+                    source: Direct(
+                        Url {
+                            scheme: "https",
+                            cannot_be_a_base: false,
+                            username: "",
+                            password: None,
+                            host: Some(
+                                Domain(
+                                    "burntsushi.net",
+                                ),
+                            ),
+                            port: None,
+                            path: "/",
+                            query: None,
+                            fragment: None,
+                        },
+                        DirectSource {
+                            subdirectory: None,
+                        },
+                    ),
+                },
+                sdist: None,
+                wheels: [],
+                dependencies: [],
+                optional_dependencies: {},
+                dev_dependencies: {},
+            },
+        ],
+        requires_python: None,
+        by_id: {
+            DistributionId {
+                name: PackageName(
+                    "anyio",
+                ),
+                version: "4.3.0",
+                source: Direct(
+                    Url {
+                        scheme: "https",
+                        cannot_be_a_base: false,
+                        username: "",
+                        password: None,
+                        host: Some(
+                            Domain(
+                                "burntsushi.net",
+                            ),
+                        ),
+                        port: None,
+                        path: "/",
+                        query: None,
+                        fragment: None,
+                    },
+                    DirectSource {
+                        subdirectory: None,
+                    },
+                ),
+            }: 0,
+        },
+    },
+)
diff --git a/crates/uv-resolver/src/snapshots/uv_resolver__lock__tests__source_directory.snap b/crates/uv-resolver/src/snapshots/uv_resolver__lock__tests__source_directory.snap
new file mode 100644
index 000000000..a4dea4338
--- /dev/null
+++ b/crates/uv-resolver/src/snapshots/uv_resolver__lock__tests__source_directory.snap
@@ -0,0 +1,39 @@
+---
+source: crates/uv-resolver/src/lock.rs
+expression: result
+---
+Ok(
+    Lock {
+        version: 1,
+        distributions: [
+            Distribution {
+                id: DistributionId {
+                    name: PackageName(
+                        "anyio",
+                    ),
+                    version: "4.3.0",
+                    source: Directory(
+                        "path/to/dir",
+                    ),
+                },
+                sdist: None,
+                wheels: [],
+                dependencies: [],
+                optional_dependencies: {},
+                dev_dependencies: {},
+            },
+        ],
+        requires_python: None,
+        by_id: {
+            DistributionId {
+                name: PackageName(
+                    "anyio",
+                ),
+                version: "4.3.0",
+                source: Directory(
+                    "path/to/dir",
+                ),
+            }: 0,
+        },
+    },
+)
diff --git a/crates/uv-resolver/src/snapshots/uv_resolver__lock__tests__source_editable.snap b/crates/uv-resolver/src/snapshots/uv_resolver__lock__tests__source_editable.snap
new file mode 100644
index 000000000..ea9080472
--- /dev/null
+++ b/crates/uv-resolver/src/snapshots/uv_resolver__lock__tests__source_editable.snap
@@ -0,0 +1,39 @@
+---
+source: crates/uv-resolver/src/lock.rs
+expression: result
+---
+Ok(
+    Lock {
+        version: 1,
+        distributions: [
+            Distribution {
+                id: DistributionId {
+                    name: PackageName(
+                        "anyio",
+                    ),
+                    version: "4.3.0",
+                    source: Editable(
+                        "path/to/dir",
+                    ),
+                },
+                sdist: None,
+                wheels: [],
+                dependencies: [],
+                optional_dependencies: {},
+                dev_dependencies: {},
+            },
+        ],
+        requires_python: None,
+        by_id: {
+            DistributionId {
+                name: PackageName(
+                    "anyio",
+                ),
+                version: "4.3.0",
+                source: Editable(
+                    "path/to/dir",
+                ),
+            }: 0,
+        },
+    },
+)