From 52851af20aa17e7d16dc44e289531cd64ab0a484 Mon Sep 17 00:00:00 2001
From: Augusto <aug.ornelas@gmail.com>
Date: Fri, 25 Dec 2020 20:12:23 +0000
Subject: [PATCH] Add exercise `ownership`'s subject and test

---
 rust/tests/ownership_test/Cargo.lock  | 12 +++++
 rust/tests/ownership_test/Cargo.toml  | 10 +++++
 rust/tests/ownership_test/src/main.rs | 64 +++++++++++++++++++++++++++
 subjects/ownership/README.md          | 43 ++++++++++++++++++
 4 files changed, 129 insertions(+)
 create mode 100644 rust/tests/ownership_test/Cargo.lock
 create mode 100644 rust/tests/ownership_test/Cargo.toml
 create mode 100644 rust/tests/ownership_test/src/main.rs
 create mode 100644 subjects/ownership/README.md

diff --git a/rust/tests/ownership_test/Cargo.lock b/rust/tests/ownership_test/Cargo.lock
new file mode 100644
index 00000000..9cf48260
--- /dev/null
+++ b/rust/tests/ownership_test/Cargo.lock
@@ -0,0 +1,12 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "ownership"
+version = "0.1.0"
+
+[[package]]
+name = "ownership_test"
+version = "0.1.0"
+dependencies = [
+ "ownership",
+]
diff --git a/rust/tests/ownership_test/Cargo.toml b/rust/tests/ownership_test/Cargo.toml
new file mode 100644
index 00000000..a724362b
--- /dev/null
+++ b/rust/tests/ownership_test/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "ownership_test"
+version = "0.1.0"
+authors = ["Augusto <aug.ornelas@gmail.com>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+ownership = { path = "../../../../rust-piscine-solutions/ownership"}
diff --git a/rust/tests/ownership_test/src/main.rs b/rust/tests/ownership_test/src/main.rs
new file mode 100644
index 00000000..ebaeef61
--- /dev/null
+++ b/rust/tests/ownership_test/src/main.rs
@@ -0,0 +1,64 @@
+/*
+## ownership
+
+### Instruction
+
+Create a function that takes ownership of a string and returns the
+first sub-word in it. It should work for camelCase as well as snake_case
+first_subword(camelCase) returns camel
+first_subword(snake_case) returns snake
+
+And fix the printing expression so the code works
+
+###
+*/
+
+use ownership::*;
+
+fn main() {
+	let s1 = String::from("helloWorld");
+	let s2 = String::from("snake_case");
+	let s3 = String::from("CamelCase");
+	let s4 = String::from("just");
+
+	println!("first_subword({}) = {}", s1.clone(), first_subword(s1)); // Must print first_subword(helloWorld) = hello
+	println!("first_subword({}) = {}", s2.clone(), first_subword(s2)); // Must print first_subword(snake_case) = snake
+	println!("first_subword({}) = {}", s3.clone(), first_subword(s3)); // Must print first_subword(CamelCase) = Camel
+	println!("first_subword({}) = {}", s4.clone(), first_subword(s4)); // Must print first_subword(just) = just
+}
+
+#[cfg(test)]
+mod tests {
+	use super::*;
+
+	#[test]
+	fn first_subword_test() {
+		struct TstString<'a> {
+			str: String,
+			l: &'a str,
+		}
+
+		let o_tsts = vec![
+			TstString {
+				str: "helloWorld".to_string(),
+				l: "hello",
+			},
+			TstString {
+				str: "how_you".to_string(),
+				l: "how",
+			},
+			TstString {
+				str: "Changeyou".to_string(),
+				l: "Changeyou",
+			},
+			TstString {
+				str: "CamelCase".to_string(),
+				l: "Camel",
+			},
+		];
+
+		for t in o_tsts.iter() {
+			assert_eq!(t.l.to_string(), first_subword(t.str.clone()));
+		}
+	}
+}
diff --git a/subjects/ownership/README.md b/subjects/ownership/README.md
new file mode 100644
index 00000000..6a5eda1f
--- /dev/null
+++ b/subjects/ownership/README.md
@@ -0,0 +1,43 @@
+## ownership
+
+### Instruction
+
+- Create a function that takes ownership of a string and returns the first sub-word in it
+
+- It should work for `camelCase` as well as `snake_case`
+
+### Expected Function
+
+```rust
+pub fn first_subword(mut s: String) -> String {
+}
+```
+
+### Usage
+
+Here is a program to test your function
+
+```rust
+fn main() {
+	let s1 = String::from("helloWorld");
+	let s2 = String::from("snake_case");
+	let s3 = String::from("CamelCase");
+	let s4 = String::from("just");
+
+	println!("first_subword({}) = {}", s1.clone(), first_subword(s1)); 
+	println!("first_subword({}) = {}", s2.clone(), first_subword(s2));
+	println!("first_subword({}) = {}", s3.clone(), first_subword(s3));
+	println!("first_subword({}) = {}", s4.clone(), first_subword(s4));
+}
+```
+
+And its output
+
+```console
+student@ubuntu:~/[[ROOT]]/test$ cargo run
+first_subword(helloWorld) = hello
+first_subword(snake_case) = snake
+first_subword(CamelCase) = Camel
+first_subword(just) = just
+student@ubuntu:~/[[ROOT]]/test$
+```