Add a test-support feature flag that enables compilation of zed::test module

Co-Authored-By: Nathan Sobo <nathan@zed.dev>

zed/Cargo.toml

@@ -13,6 +13,9 @@ path = "src/lib.rs"
 name = "Zed"
 path = "src/main.rs"
 
+[features]
+test-support = ["tempdir", "serde_json"]
+
 [dependencies]
 anyhow = "1.0.38"
 arrayvec = "0.5.2"
@@ -20,9 +23,9 @@ crossbeam-channel = "0.5.0"
 ctor = "0.1.20"
 dirs = "3.0"
 easy-parallel = "3.1.0"
-fsevent = { path="../fsevent" }
+fsevent = {path = "../fsevent"}
 futures = "0.3"
-gpui = { path="../gpui" }
+gpui = {path = "../gpui"}
 http-auth-basic = "0.1.3"
 ignore = "0.4"
 lazy_static = "1.4.0"
@@ -30,29 +33,31 @@ libc = "0.2"
 log = "0.4"
 num_cpus = "1.13.0"
 parking_lot = "0.11.1"
-postage = { version="0.4.1", features=["futures-traits"] }
+postage = {version = "0.4.1", features = ["futures-traits"]}
 rand = "0.8.3"
 rsa = "0.4"
 rust-embed = "5.9.0"
 seahash = "4.1"
-serde = { version="1", features=["derive"] }
+serde = {version = "1", features = ["derive"]}
+serde_json = {version = "1.0.64", features = ["preserve_order"], optional = true}
 similar = "1.3"
 simplelog = "0.9"
-smallvec = { version="1.6", features=["union"] }
+smallvec = {version = "1.6", features = ["union"]}
 smol = "1.2.5"
 surf = "2.2"
+tempdir = {version = "0.3.7", optional = true}
 tiny_http = "0.8"
 toml = "0.5"
 tree-sitter = "0.19.5"
 tree-sitter-rust = "0.19.0"
 url = "2.2"
-zed-rpc = { path="../zed-rpc" }
+zed-rpc = {path = "../zed-rpc"}
 
 [dev-dependencies]
 cargo-bundle = "0.5.0"
 env_logger = "0.8"
-serde_json = { version="1.0.64", features=["preserve_order"] }
-tempdir = "0.3.7"
+serde_json = {version = "1.0.64", features = ["preserve_order"]}
+tempdir = {version = "0.3.7"}
 unindent = "0.1.7"
 
 [package.metadata.bundle]

zed/src/lib.rs

@@ -7,12 +7,12 @@ mod operation_queue;
 pub mod rpc;
 pub mod settings;
 mod sum_tree;
-#[cfg(test)]
-mod test;
+#[cfg(any(test, feature = "test-support"))]
+pub mod test;
 mod time;
 mod util;
 pub mod workspace;
-mod worktree;
+pub mod worktree;
 
 #[derive(Clone)]
 pub struct AppState {

zed/src/test.rs

@@ -1,15 +1,13 @@
 use crate::{language::LanguageRegistry, rpc, settings, time::ReplicaId, AppState};
-use ctor::ctor;
 use gpui::AppContext;
-use rand::Rng;
 use std::{
-    collections::BTreeMap,
     path::{Path, PathBuf},
     sync::Arc,
 };
 use tempdir::TempDir;
 
-#[ctor]
+#[cfg(test)]
+#[ctor::ctor]
 fn init_logger() {
     env_logger::init();
 }
@@ -20,15 +18,17 @@ struct Envelope<T: Clone> {
     sender: ReplicaId,
 }
 
+#[cfg(test)]
 pub(crate) struct Network<T: Clone> {
-    inboxes: BTreeMap<ReplicaId, Vec<Envelope<T>>>,
+    inboxes: std::collections::BTreeMap<ReplicaId, Vec<Envelope<T>>>,
     all_messages: Vec<T>,
 }
 
+#[cfg(test)]
 impl<T: Clone> Network<T> {
     pub fn new() -> Self {
         Network {
-            inboxes: BTreeMap::new(),
+            inboxes: Default::default(),
             all_messages: Vec::new(),
         }
     }
@@ -41,10 +41,7 @@ impl<T: Clone> Network<T> {
         self.inboxes.values().all(|i| i.is_empty())
     }
 
-    pub fn broadcast<R>(&mut self, sender: ReplicaId, messages: Vec<T>, rng: &mut R)
-    where
-        R: Rng,
-    {
+    pub fn broadcast<R: rand::Rng>(&mut self, sender: ReplicaId, messages: Vec<T>, rng: &mut R) {
         for (replica, inbox) in self.inboxes.iter_mut() {
             if *replica != sender {
                 for message in &messages {
@@ -83,10 +80,7 @@ impl<T: Clone> Network<T> {
         !self.inboxes[&receiver].is_empty()
     }
 
-    pub fn receive<R>(&mut self, receiver: ReplicaId, rng: &mut R) -> Vec<T>
-    where
-        R: Rng,
-    {
+    pub fn receive<R: rand::Rng>(&mut self, receiver: ReplicaId, rng: &mut R) -> Vec<T> {
         let inbox = self.inboxes.get_mut(&receiver).unwrap();
         let count = rng.gen_range(0..inbox.len() + 1);
         inbox