From a264264f17b8beda0be4a64cddb565a49551c013 Mon Sep 17 00:00:00 2001
From: YushiOMOTE <yushiomote@gmail.com>
Date: Sat, 13 Jul 2024 09:49:48 +0900
Subject: [PATCH] Add CI to run integration test

---
 .github/workflows/main.yml               | 22 ++++++++++
 testing/.cargo/config.toml               |  6 +++
 testing/Cargo.toml                       | 28 ++++++++++++
 rust-toolchain => testing/rust-toolchain |  0
 testing/src/lib.rs                       | 54 ++++++++++++++++++++++++
 testing/tests/basic.rs                   | 16 +++++++
 6 files changed, 126 insertions(+)
 create mode 100644 testing/.cargo/config.toml
 create mode 100644 testing/Cargo.toml
 rename rust-toolchain => testing/rust-toolchain (100%)
 create mode 100644 testing/src/lib.rs
 create mode 100644 testing/tests/basic.rs

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index b3fab2b..deeefb9 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -19,6 +19,28 @@ jobs:
           rustup default ${{ matrix.rust }}
       - run: cargo test --verbose
 
+  integration-test:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: testing
+    timeout-minutes: 15
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Install Qemu
+        run: |
+          sudo apt update
+          sudo apt install qemu-system
+      - name: Install Rust
+        run: |
+          rustup update nightly --no-self-update
+          rustup default nightly
+          rustup target add x86_64-unknown-none
+          rustup component add rust-src
+          rustup component add llvm-tools-preview
+      - run: cargo test --verbose
+
   fmt:
     runs-on: ubuntu-latest
     steps:
diff --git a/testing/.cargo/config.toml b/testing/.cargo/config.toml
new file mode 100644
index 0000000..5c19ef0
--- /dev/null
+++ b/testing/.cargo/config.toml
@@ -0,0 +1,6 @@
+[build]
+target = "x86_64-unknown-none"
+rustflags = ["-Crelocation-model=static"]
+
+[target.'cfg(target_os = "none")']
+runner = "bootimage runner"
diff --git a/testing/Cargo.toml b/testing/Cargo.toml
new file mode 100644
index 0000000..85ef829
--- /dev/null
+++ b/testing/Cargo.toml
@@ -0,0 +1,28 @@
+[package]
+name = "testing"
+version = "0.1.0"
+authors = ["Philipp Oppermann <dev@phil-opp.com>"]
+edition = "2018"
+
+[[test]]
+name = "basic"
+harness = false
+
+[dependencies]
+bootloader = "0.9.10"
+uart_16550 = "0.2.8"
+spin = "0.5.0"
+x86_64 = "0.15.1"
+com_logger = { path = ".." }
+log = "0.4.22"
+
+[dependencies.lazy_static]
+version = "1.3.0"
+features = ["spin_no_std"]
+
+[package.metadata.bootimage]
+test-args = [
+    "-device", "isa-debug-exit,iobase=0xf4,iosize=0x04", "-serial", "stdio",
+    "-display", "none"
+]
+test-success-exit-code = 33
diff --git a/rust-toolchain b/testing/rust-toolchain
similarity index 100%
rename from rust-toolchain
rename to testing/rust-toolchain
diff --git a/testing/src/lib.rs b/testing/src/lib.rs
new file mode 100644
index 0000000..0b86fef
--- /dev/null
+++ b/testing/src/lib.rs
@@ -0,0 +1,54 @@
+#![feature(custom_test_frameworks)]
+#![test_runner(crate::test_runner)]
+#![reexport_test_harness_main = "test_main"]
+#![no_std]
+#![no_main]
+
+use core::panic::PanicInfo;
+use log::error;
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+#[repr(u32)]
+pub enum QemuExitCode {
+    Success = 0x10,
+    Failed = 0x11,
+}
+
+pub fn exit() {
+    exit_qemu(QemuExitCode::Success)
+}
+
+pub fn exit_qemu(exit_code: QemuExitCode) {
+    use x86_64::instructions::port::PortWriteOnly;
+
+    unsafe {
+        let mut port = PortWriteOnly::new(0xf4);
+        port.write(exit_code as u32);
+    }
+}
+
+pub fn test_runner(tests: &[&dyn Fn()]) {
+    for test in tests {
+        test();
+    }
+    exit_qemu(QemuExitCode::Success);
+}
+
+pub fn test_panic_handler(info: &PanicInfo) -> ! {
+    error!("{:#?}", info);
+    exit_qemu(QemuExitCode::Failed);
+    loop {}
+}
+
+#[cfg(test)]
+#[no_mangle]
+pub extern "C" fn _start() -> ! {
+    test_main();
+    loop {}
+}
+
+#[cfg(test)]
+#[panic_handler]
+fn panic(info: &PanicInfo) -> ! {
+    test_panic_handler(info)
+}
diff --git a/testing/tests/basic.rs b/testing/tests/basic.rs
new file mode 100644
index 0000000..066ff00
--- /dev/null
+++ b/testing/tests/basic.rs
@@ -0,0 +1,16 @@
+#![no_std]
+#![no_main]
+
+use core::panic::PanicInfo;
+
+#[no_mangle] // don't mangle the name of this function
+pub extern "C" fn _start() {
+    com_logger::init();
+    log::info!("Hello world");
+    testing::exit();
+}
+
+#[panic_handler]
+fn panic(info: &PanicInfo) -> ! {
+    testing::test_panic_handler(info)
+}