Move exercises into tests directory

It's easy to manage the tests.
No need to change cargo.toml and src directory if tests exists in
tests directory.
So I can add test at anytime without touching any other file.

Author: Gioh Kim

Diff for: Cargo.toml

@@ -91,10 +91,6 @@ path = "src/project/main.rs"
 name = "functional_iterator"
 path = "src/functional_iterator/main.rs"
 
-[[bin]]
-name = "functional_iterator_ex"
-path = "src/functional_iterator/ex/main.rs"
-
 [[bin]]
 name = "functional_function_pointer"
 path = "src/functional_function_pointer/main.rs"
@@ -103,10 +99,6 @@ path = "src/functional_function_pointer/main.rs"
 name = "functional_closure_nocapture"
 path = "src/functional_closure_nocapture/main.rs"
 
-[[bin]]
-name = "functional_closure_nocapture_ex"
-path = "src/functional_closure_nocapture/ex/main.rs"
-
 [[bin]]
 name = "functional_closure_capture"
 path = "src/functional_closure_capture/main.rs"
@@ -135,10 +127,6 @@ path = "src/functional_map_debugging/main.rs"
 name = "functional_filter"
 path = "src/functional_filter/main.rs"
 
-[[bin]]
-name = "functional_filter_ex"
-path = "src/functional_filter/ex/main.rs"
-
 [[bin]]
 name = "functional_reduce"
 path = "src/functional_reduce/main.rs"
@@ -227,10 +215,6 @@ path = "src/lifetime/main.rs"
 name = "smart_pointer_basic"
 path = "src/smart_pointer_basic/main.rs"
 
-[[bin]]
-name = "smart_pointer_basic_ex"
-path = "src/smart_pointer_basic/ex/main.rs"
-
 [[bin]]
 name = "smart_pointer_application"
 path = "src/smart_pointer_application/main.rs"

Diff for: README.md

@@ -47,6 +47,20 @@ Hello, function_for!
 10 - Buzz
 ```
 
+## 테스트 실행 방법
+
+tests/functional_closure_nocapture.rs 파일에 있는 test_functional_closure_nocapture 테스트 실행하기
+```
+% cargo test --test functional_closure_nocapture 
+    Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
+     Running tests/functional_closure_nocapture.rs (target/debug/deps/functional_closure_nocapture-f131d74e44a09c8b)
+
+running 1 test
+test test_functional_closure_nocapture ... ok
+
+test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
+```
+
 ## License
 
 이 책의 컨텐츠와 예제 코드는 다음 라이선스를 따릅니다.

Diff for: src/smart_pointer_basic/ex/main.rs

@@ -1,26 +1,5 @@
 #![allow(dead_code)]
 
-/*func adder() func(int) int {
-    sum := 0
-    return func(x int) int {
-        sum += x
-        return sum
-    }
-}
-
-func main() {
-    pos, neg := adder(), adder()
-    for i := 0; i < 10; i++ {
-        fmt.Println(
-            pos(i),
-            neg(-2*i),
-        )
-    }
-}
- */
-
-fn main() {}
-
 fn adder() -> impl FnMut(i32) -> i32 {
     let mut sum = 0;
     move |x| {

Diff for: tests/functional_closure_capture.rs

@@ -20,19 +20,14 @@ fn main() {
     println!("result={}", r(5));
 }
 
-#[cfg(test)]
-mod tests {
-    use super::*;
+#[test]
+fn test_functional_closure_nocapture() {
+    let f = double(double(inc));
+    assert_eq!(9, f(5));
 
-    #[test]
-    fn test_functional_closure_nocapture() {
-        let f = double(double(inc));
-        assert_eq!(9, f(5));
+    let _f = double(double(double(inc)));
+    //assert_eq!(0 /* FIX this number */, f(5));
 
-        let _f = double(double(double(inc)));
-        //assert_eq!(0 /* FIX this number */, f(5));
-
-        let _f = double(double(double(double(inc))));
-        //assert_eq!(0 /* FIX this number */, f(5));
-    }
+    let _f = double(double(double(double(inc))));
+    //assert_eq!(0 /* FIX this number */, f(5));
 }

Diff for: src/functional_closure_nocapture/ex/main.rs renamed to tests/functional_closure_nocapture.rs

@@ -1,7 +1,5 @@
 #![allow(dead_code)]
 
-fn main() {}
-
 fn check_fibonacci(_v: i32) -> bool {
     // v로 전달받은 수가 피보나치 수열에 있는 수인지 확인하는 함수입니다.
     // 피보나치 수열에 속한 수이면 true, 아니면 false를 반환하세요.
@@ -14,13 +12,8 @@ fn get_fibonacci(_limit: i32) -> Vec<i32> {
     vec![1, 1, 2, 3, 5, 8]
 }
 
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn test_functional_filter() {
-        assert_eq!(false, check_fibonacci(4));
-        assert_eq!(vec![1, 1, 2, 3, 5, 8], get_fibonacci(10));
-    }
+#[test]
+fn test_functional_filter() {
+    assert_eq!(false, check_fibonacci(4));
+    assert_eq!(vec![1, 1, 2, 3, 5, 8], get_fibonacci(10));
 }

Diff for: src/functional_filter/ex/main.rs renamed to tests/functional_filter.rs

@@ -30,28 +30,20 @@ impl Iterator for Fibonacci {
         Some(current)
     }
 }
-
-fn main() {}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn test_functional_iterator() {
-        // Solution
-        let mut fib_iter = Fibonacci {
-            curr: 0,
-            next: 1,
-            buffer: Vec::new(),
-            counter: 0,
-        };
-
-        for _ in 1..=10 {
-            let _ = fib_iter.next().unwrap();
-        }
-
-        // Exercise
-        assert_eq!(5, fib_iter.nth(5));
+#[test]
+fn test_functional_iterator() {
+    // Solution
+    let mut fib_iter = Fibonacci {
+        curr: 0,
+        next: 1,
+        buffer: Vec::new(),
+        counter: 0,
+    };
+
+    for _ in 1..=10 {
+        let _ = fib_iter.next().unwrap();
     }
+
+    // Exercise
+    assert_eq!(5, fib_iter.nth(5));
 }

Diff for: src/functional_iterator/ex/main.rs renamed to tests/functional_iterator.rs

@@ -0,0 +1,11 @@
+#[test]
+fn test_smart_pointer_basic() {
+    // 아래 코드는 패닉을 발생시키고 테스트를 종료시킵니다.
+    // 왜 패닉이 발생할까요? 어떡게 고칠 수 있을까요?
+    // 힌트: Box만 사용하면 고칠 수 없습니다.
+    // Box::new([0; 1024*1024*1024])와 같이 Box에 전달할 슬라이스를 만들 때 이미 스택에 배열을 생성한 후 Box에 전달하기 때문입니다.
+    // reference: https://doc.rust-lang.org/std/vec/struct.Vec.html#impl-TryFrom%3CVec%3CT%3E%3E-for-Box%3C%5BT;+N%5D%3E
+    //let big_array: [i32; 1024 * 1024 * 1024] = [0; 1024 * 1024 * 1024];
+    //let l = big_array.len();
+    //println!("last element:{}", big_array[l - 1]);
+}