4 files changed, 48 insertions, 0 deletions
diff --git a/rust_testhelper/Cargo.lock b/rust_testhelper/Cargo.lock
new file mode 100644
index 0000000..2e5f5d0
--- /dev/null
+++ b/rust_testhelper/Cargo.lock
@@ -0,0 +1,23 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "cc"
+version = "1.0.73"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2fff2a6927b3bb87f9595d67196a70493f627687a71d87a0d692242c33f58c11"
+
+[[package]]
+name = "libc"
+version = "0.2.133"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c0f80d65747a3e43d1596c7c5492d95d5edddaabd45a7fcdb02b95f644164966"
+
+[[package]]
+name = "rust_testhelper"
+version = "0.1.0"
+dependencies = [
+ "cc",
+ "libc",
+]
diff --git a/rust_testhelper/Cargo.toml b/rust_testhelper/Cargo.toml
new file mode 100644
index 0000000..53958db
--- /dev/null
+++ b/rust_testhelper/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "rust_testhelper"
+version = "0.1.0"
+description = "Helper for compiling and linking pwm_qhash.cpp during cargo test."
+
+[dependencies]
+libc = "0.2"
+
+[build-dependencies]
+cc = "1.0"
diff --git a/rust_testhelper/build.rs b/rust_testhelper/build.rs
new file mode 100644
index 0000000..6fa9026
--- /dev/null
+++ b/rust_testhelper/build.rs
@@ -0,0 +1,9 @@
+fn main() {
+    cc::Build::new()
+        .cpp(true)
+        .file("../src/pwm_qhash.cpp")
+        .include("/usr/include/qt5/")
+        .include("/usr/include/qt5/QtCore/")
+        .compile("pwm_qhash");
+    println!("cargo:rustc-link-lib=Qt5Core");
+}
diff --git a/rust_testhelper/src/lib.rs b/rust_testhelper/src/lib.rs
new file mode 100644
index 0000000..a3c5db5
--- /dev/null
+++ b/rust_testhelper/src/lib.rs
@@ -0,0 +1,6 @@
+extern crate libc;
+use libc::size_t;
+
+extern "C"{
+    pub fn pwm_qhash(algorithm : size_t, input : *const u8, input_length : size_t, output : *mut u8, output_capacity : size_t) -> size_t;
+}