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Refine test case to increase code coverage
Try to increase code coverage by adding more test code. But it actually causes dramatic decreases in code coverage:( Signed-off-by: Liu Jiang <gerry@linux.alibaba.com>
1 parent 72d754b commit 4e16112

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-6
lines changed

4 files changed

+51
-6
lines changed

Cargo.toml

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@@ -18,3 +18,4 @@ vmm-sys-util = "0.9"
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[dev-dependencies]
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vm-memory = {version = "0.7", features = ["backend-mmap", "backend-atomic", "backend-bitmap"]}
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tempfile = "3.2.0"

coverage_config_x86_64.json

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@@ -1,5 +1,5 @@
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{
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"coverage_score": 78.5,
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"coverage_score": 49.6,
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"exclude_path": "",
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"crate_features": ""
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}

src/backend.rs

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@@ -401,7 +401,7 @@ pub mod tests {
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use super::*;
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use crate::VringRwLock;
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use std::sync::Mutex;
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use vm_memory::{GuestMemoryAtomic, GuestMemoryMmap};
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use vm_memory::{GuestAddress, GuestMemoryAtomic, GuestMemoryMmap};
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pub struct MockVhostBackend {
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events: u64,
@@ -509,6 +509,13 @@ pub mod tests {
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backend.set_event_idx(true);
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assert_eq!(backend.lock().unwrap().event_idx, true);
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let _ = backend.exit_event(0).unwrap();
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let mem = GuestMemoryAtomic::new(
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GuestMemoryMmap::<()>::from_ranges(&[(GuestAddress(0x100000), 0x10000)]).unwrap(),
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);
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backend.update_memory(mem).unwrap();
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}
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#[test]
@@ -532,5 +539,17 @@ pub mod tests {
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backend.set_event_idx(true);
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assert_eq!(backend.read().unwrap().event_idx, true);
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let _ = backend.exit_event(0).unwrap();
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let mem = GuestMemoryAtomic::new(
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GuestMemoryMmap::<()>::from_ranges(&[(GuestAddress(0x100000), 0x10000)]).unwrap(),
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);
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backend.update_memory(mem.clone()).unwrap();
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let vring = VringRwLock::new(mem, 0x1000);
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backend
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.handle_event(0x1, EventSet::IN, &[vring], 0)
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.unwrap();
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}
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}

src/lib.rs

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@@ -171,6 +171,8 @@ where
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mod tests {
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use super::backend::tests::MockVhostBackend;
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use super::*;
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use std::os::unix::net::UnixStream;
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use std::sync::Barrier;
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use vm_memory::{GuestAddress, GuestMemoryAtomic, GuestMemoryMmap};
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#[test]
@@ -179,9 +181,32 @@ mod tests {
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GuestMemoryMmap::<()>::from_ranges(&[(GuestAddress(0x100000), 0x10000)]).unwrap(),
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);
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let backend = Arc::new(Mutex::new(MockVhostBackend::new()));
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let daemon = VhostUserDaemon::new("test".to_owned(), backend, mem).unwrap();
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assert_eq!(daemon.get_epoll_handlers().len(), 2);
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//daemon.start(Listener::new()).unwrap();
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let mut daemon = VhostUserDaemon::new("test".to_owned(), backend, mem).unwrap();
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let handlers = daemon.get_epoll_handlers();
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assert_eq!(handlers.len(), 2);
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let barrier = Arc::new(Barrier::new(2));
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let tmpdir = tempfile::tempdir().unwrap();
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let mut path = tmpdir.path().to_path_buf();
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path.push("socket");
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let barrier2 = barrier.clone();
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let path1 = path.clone();
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let thread = thread::spawn(move || {
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barrier2.wait();
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let socket = UnixStream::connect(&path1).unwrap();
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barrier2.wait();
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drop(socket)
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});
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let listener = Listener::new(&path, false).unwrap();
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barrier.wait();
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daemon.start(listener).unwrap();
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barrier.wait();
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// Above process generates a `HandleRequest(PartialMessage)` error.
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daemon.wait().unwrap_err();
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daemon.wait().unwrap();
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thread.join().unwrap();
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}
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}

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