From 1f002a41164b5f584ba996780cf4af1ec8808bb7 Mon Sep 17 00:00:00 2001
From: Greg Bowyer <gbowyer@fastmail.co.uk>
Date: Mon, 6 Jan 2020 13:19:52 -0800
Subject: [PATCH] Add tests for renamed crates

---
 test/renamed_deps/BUILD   | 54 +++++++++++++++++++++++++++++++++++++++
 test/renamed_deps/mod1.rs | 11 ++++++++
 test/renamed_deps/mod2.rs | 22 ++++++++++++++++
 test/renamed_deps/mod3.rs | 38 +++++++++++++++++++++++++++
 4 files changed, 125 insertions(+)
 create mode 100644 test/renamed_deps/BUILD
 create mode 100644 test/renamed_deps/mod1.rs
 create mode 100644 test/renamed_deps/mod2.rs
 create mode 100644 test/renamed_deps/mod3.rs

diff --git a/test/renamed_deps/BUILD b/test/renamed_deps/BUILD
new file mode 100644
index 0000000000..909ae16734
--- /dev/null
+++ b/test/renamed_deps/BUILD
@@ -0,0 +1,54 @@
+load(
+    "//rust:rust.bzl",
+    "rust_doc_test",
+    "rust_library",
+    "rust_test",
+)
+
+rust_library(
+    name = "mod1",
+    srcs = ["mod1.rs"],
+)
+
+rust_library(
+    name = "mod2",
+    srcs = ["mod2.rs"],
+    deps = [":mod1"],
+)
+
+rust_library(
+    name = "mod3",
+    srcs = ["mod3.rs"],
+    aliases = {
+        ":mod1": "alias_a",
+        ":mod2": "alias_b",
+    },
+    deps = [
+        ":mod1",
+        ":mod2",
+    ],
+)
+
+rust_test(
+    name = "mod1_test",
+    crate = ":mod1",
+)
+
+rust_test(
+    name = "mod2_test",
+    crate = ":mod2",
+)
+
+rust_test(
+    name = "mod3_test",
+    crate = ":mod3",
+    aliases = {
+        ":mod1": "alias_a",
+        ":mod2": "alias_b",
+    },
+)
+
+rust_doc_test(
+    name = "mod3_doc_test",
+    dep = ":mod3",
+)
diff --git a/test/renamed_deps/mod1.rs b/test/renamed_deps/mod1.rs
new file mode 100644
index 0000000000..a66f490afb
--- /dev/null
+++ b/test/renamed_deps/mod1.rs
@@ -0,0 +1,11 @@
+pub fn world() -> String {
+    "world".to_owned()
+}
+
+#[cfg(test)]
+mod test {
+    #[test]
+    fn test_world() {
+        assert_eq!(super::world(), "world");
+    }
+}
diff --git a/test/renamed_deps/mod2.rs b/test/renamed_deps/mod2.rs
new file mode 100644
index 0000000000..cff993b33f
--- /dev/null
+++ b/test/renamed_deps/mod2.rs
@@ -0,0 +1,22 @@
+extern crate mod1;
+
+pub fn greeter(name: &str) -> String {
+    format!("Hello, {}!", name)
+}
+
+pub fn default_greeter() -> String {
+    greeter(&mod1::world())
+}
+
+#[cfg(test)]
+mod test {
+    #[test]
+    fn test_greeter() {
+        assert_eq!(super::greeter("Bob"), "Hello, Bob!");
+    }
+
+    #[test]
+    fn test_default_greeter() {
+        assert_eq!(super::default_greeter(), "Hello, world!");
+    }
+}
diff --git a/test/renamed_deps/mod3.rs b/test/renamed_deps/mod3.rs
new file mode 100644
index 0000000000..4942bf2086
--- /dev/null
+++ b/test/renamed_deps/mod3.rs
@@ -0,0 +1,38 @@
+// This crate depends on 2 crates with one of them depending on the other one.
+// If the crates are not set correctly in the dependency chain, this crate won't
+// compile. The order of the `extern crate` is important to trigger that bug.
+extern crate alias_a;
+extern crate alias_b;
+
+pub fn greet(name: &str) {
+    println!("{}", alias_b::greeter(name))
+}
+
+pub fn greet_default() {
+    println!("{}", alias_b::default_greeter())
+}
+
+/// This is a documentation.
+///
+/// # Examples
+///
+/// ```rust
+/// assert!(
+///   mod3::am_i_the_world("world") == true
+/// );
+/// assert!(
+///   mod3::am_i_the_world("myself") == false
+/// );
+/// ```
+pub fn am_i_the_world(me: &str) -> bool {
+    return me == alias_a::world();
+}
+
+#[cfg(test)]
+mod test {
+    #[test]
+    fn test_am_i_the_world() {
+        assert!(super::am_i_the_world("world"));
+        assert!(!super::am_i_the_world("bob"));
+    }
+}