diff --git a/tests/depfile/cbindgen_test.cmake b/tests/depfile/cbindgen_test.cmake
index f331665ac..752c3c3b6 100644
--- a/tests/depfile/cbindgen_test.cmake
+++ b/tests/depfile/cbindgen_test.cmake
@@ -17,6 +17,7 @@ function(add_cbindgen_command custom_target_name header_destination)
         "${CBINDGEN_PATH}"
         --output "${header_destination}"
         --depfile "${depfile_destination}"
+        ${ARGN}
         DEPFILE "${depfile_destination}"
         WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
         COMMENT "Running cbindgen"
diff --git a/tests/depfile/single_crate_config/.gitignore b/tests/depfile/single_crate_config/.gitignore
new file mode 100644
index 000000000..378eac25d
--- /dev/null
+++ b/tests/depfile/single_crate_config/.gitignore
@@ -0,0 +1 @@
+build
diff --git a/tests/depfile/single_crate_config/CMakeLists.txt b/tests/depfile/single_crate_config/CMakeLists.txt
new file mode 100644
index 000000000..db7229460
--- /dev/null
+++ b/tests/depfile/single_crate_config/CMakeLists.txt
@@ -0,0 +1,13 @@
+cmake_minimum_required(VERSION 3.21.0)
+
+project(depfile_test
+        LANGUAGES C
+        DESCRIPTION "A CMake Project to test the --depfile output from cbindgen"
+        )
+
+include(../cbindgen_test.cmake)
+
+add_cbindgen_command(gen_bindings
+        "${CMAKE_CURRENT_BINARY_DIR}/single_crate.h"
+        --config "${CMAKE_CURRENT_SOURCE_DIR}/config.toml"
+        )
diff --git a/tests/depfile/single_crate_config/Cargo.lock b/tests/depfile/single_crate_config/Cargo.lock
new file mode 100644
index 000000000..26d416263
--- /dev/null
+++ b/tests/depfile/single_crate_config/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "single_crate"
+version = "0.1.0"
diff --git a/tests/depfile/single_crate_config/Cargo.toml b/tests/depfile/single_crate_config/Cargo.toml
new file mode 100644
index 000000000..66eff1125
--- /dev/null
+++ b/tests/depfile/single_crate_config/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "single_crate"
+version = "0.1.0"
+authors = ["cbindgen"]
+
+[features]
+cbindgen = []
diff --git a/tests/depfile/single_crate_config/config.toml b/tests/depfile/single_crate_config/config.toml
new file mode 100644
index 000000000..e69de29bb
diff --git a/tests/depfile/single_crate_config/expectations/dependencies b/tests/depfile/single_crate_config/expectations/dependencies
new file mode 100644
index 000000000..bf8ccb39e
--- /dev/null
+++ b/tests/depfile/single_crate_config/expectations/dependencies
@@ -0,0 +1,4 @@
+config.toml
+src/alias/mod.rs
+src/annotation.rs
+src/lib.rs
diff --git a/tests/depfile/single_crate_config/src/alias/mod.rs b/tests/depfile/single_crate_config/src/alias/mod.rs
new file mode 100644
index 000000000..6c045d294
--- /dev/null
+++ b/tests/depfile/single_crate_config/src/alias/mod.rs
@@ -0,0 +1,32 @@
+#[repr(C)]
+struct Dep {
+    a: i32,
+    b: f32,
+}
+
+#[repr(C)]
+struct Foo<X> {
+    a: X,
+    b: X,
+    c: Dep,
+}
+
+#[repr(u32)]
+enum Status {
+    Ok,
+    Err,
+}
+
+type IntFoo = Foo<i32>;
+type DoubleFoo = Foo<f64>;
+
+type Unit = i32;
+type SpecialStatus = Status;
+
+#[no_mangle]
+pub extern "C" fn root(
+    x: IntFoo,
+    y: DoubleFoo,
+    z: Unit,
+    w: SpecialStatus,
+) {}
diff --git a/tests/depfile/single_crate_config/src/annotation.rs b/tests/depfile/single_crate_config/src/annotation.rs
new file mode 100644
index 000000000..54cd52662
--- /dev/null
+++ b/tests/depfile/single_crate_config/src/annotation.rs
@@ -0,0 +1,43 @@
+/// cbindgen:derive-lt=true
+/// cbindgen:derive-lte=true
+/// cbindgen:derive-constructor=true
+/// cbindgen:rename-all=GeckoCase
+#[repr(C)]
+struct A(i32);
+
+/// cbindgen:field-names=[x, y]
+#[repr(C)]
+struct B(i32, f32);
+
+/// cbindgen:trailing-values=[Z, W]
+#[repr(u32)]
+enum C {
+    X = 2,
+    Y,
+}
+
+/// cbindgen:derive-helper-methods=true
+#[repr(u8)]
+enum F {
+    Foo(i16),
+    Bar { x: u8, y: i16 },
+    Baz,
+}
+
+/// cbindgen:derive-helper-methods
+#[repr(C, u8)]
+enum H {
+    Hello(i16),
+    There { x: u8, y: i16 },
+    Everyone,
+}
+
+#[no_mangle]
+pub extern "C" fn root(
+    x: A,
+    y: B,
+    z: C,
+    f: F,
+    h: H,
+) {}
+
diff --git a/tests/depfile/single_crate_config/src/lib.rs b/tests/depfile/single_crate_config/src/lib.rs
new file mode 100644
index 000000000..c604cbd38
--- /dev/null
+++ b/tests/depfile/single_crate_config/src/lib.rs
@@ -0,0 +1,2 @@
+mod alias;
+mod annotation;
diff --git a/tests/depfile/single_crate_default_config/.gitignore b/tests/depfile/single_crate_default_config/.gitignore
new file mode 100644
index 000000000..378eac25d
--- /dev/null
+++ b/tests/depfile/single_crate_default_config/.gitignore
@@ -0,0 +1 @@
+build
diff --git a/tests/depfile/single_crate_default_config/CMakeLists.txt b/tests/depfile/single_crate_default_config/CMakeLists.txt
new file mode 100644
index 000000000..7a2b0ab9b
--- /dev/null
+++ b/tests/depfile/single_crate_default_config/CMakeLists.txt
@@ -0,0 +1,12 @@
+cmake_minimum_required(VERSION 3.21.0)
+
+project(depfile_test
+    LANGUAGES C
+    DESCRIPTION "A CMake Project to test the --depfile output from cbindgen"
+    )
+
+include(../cbindgen_test.cmake)
+
+add_cbindgen_command(gen_bindings
+    "${CMAKE_CURRENT_BINARY_DIR}/single_crate.h"
+    )
diff --git a/tests/depfile/single_crate_default_config/Cargo.lock b/tests/depfile/single_crate_default_config/Cargo.lock
new file mode 100644
index 000000000..26d416263
--- /dev/null
+++ b/tests/depfile/single_crate_default_config/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "single_crate"
+version = "0.1.0"
diff --git a/tests/depfile/single_crate_default_config/Cargo.toml b/tests/depfile/single_crate_default_config/Cargo.toml
new file mode 100644
index 000000000..66eff1125
--- /dev/null
+++ b/tests/depfile/single_crate_default_config/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "single_crate"
+version = "0.1.0"
+authors = ["cbindgen"]
+
+[features]
+cbindgen = []
diff --git a/tests/depfile/single_crate_default_config/cbindgen.toml b/tests/depfile/single_crate_default_config/cbindgen.toml
new file mode 100644
index 000000000..e69de29bb
diff --git a/tests/depfile/single_crate_default_config/expectations/dependencies b/tests/depfile/single_crate_default_config/expectations/dependencies
new file mode 100644
index 000000000..693c6f3c0
--- /dev/null
+++ b/tests/depfile/single_crate_default_config/expectations/dependencies
@@ -0,0 +1,4 @@
+cbindgen.toml
+src/alias/mod.rs
+src/annotation.rs
+src/lib.rs
diff --git a/tests/depfile/single_crate_default_config/src/alias/mod.rs b/tests/depfile/single_crate_default_config/src/alias/mod.rs
new file mode 100644
index 000000000..6c045d294
--- /dev/null
+++ b/tests/depfile/single_crate_default_config/src/alias/mod.rs
@@ -0,0 +1,32 @@
+#[repr(C)]
+struct Dep {
+    a: i32,
+    b: f32,
+}
+
+#[repr(C)]
+struct Foo<X> {
+    a: X,
+    b: X,
+    c: Dep,
+}
+
+#[repr(u32)]
+enum Status {
+    Ok,
+    Err,
+}
+
+type IntFoo = Foo<i32>;
+type DoubleFoo = Foo<f64>;
+
+type Unit = i32;
+type SpecialStatus = Status;
+
+#[no_mangle]
+pub extern "C" fn root(
+    x: IntFoo,
+    y: DoubleFoo,
+    z: Unit,
+    w: SpecialStatus,
+) {}
diff --git a/tests/depfile/single_crate_default_config/src/annotation.rs b/tests/depfile/single_crate_default_config/src/annotation.rs
new file mode 100644
index 000000000..54cd52662
--- /dev/null
+++ b/tests/depfile/single_crate_default_config/src/annotation.rs
@@ -0,0 +1,43 @@
+/// cbindgen:derive-lt=true
+/// cbindgen:derive-lte=true
+/// cbindgen:derive-constructor=true
+/// cbindgen:rename-all=GeckoCase
+#[repr(C)]
+struct A(i32);
+
+/// cbindgen:field-names=[x, y]
+#[repr(C)]
+struct B(i32, f32);
+
+/// cbindgen:trailing-values=[Z, W]
+#[repr(u32)]
+enum C {
+    X = 2,
+    Y,
+}
+
+/// cbindgen:derive-helper-methods=true
+#[repr(u8)]
+enum F {
+    Foo(i16),
+    Bar { x: u8, y: i16 },
+    Baz,
+}
+
+/// cbindgen:derive-helper-methods
+#[repr(C, u8)]
+enum H {
+    Hello(i16),
+    There { x: u8, y: i16 },
+    Everyone,
+}
+
+#[no_mangle]
+pub extern "C" fn root(
+    x: A,
+    y: B,
+    z: C,
+    f: F,
+    h: H,
+) {}
+
diff --git a/tests/depfile/single_crate_default_config/src/lib.rs b/tests/depfile/single_crate_default_config/src/lib.rs
new file mode 100644
index 000000000..c604cbd38
--- /dev/null
+++ b/tests/depfile/single_crate_default_config/src/lib.rs
@@ -0,0 +1,2 @@
+mod alias;
+mod annotation;