From bcc303880f7078d612207571e196697a0d0b35bf Mon Sep 17 00:00:00 2001
From: garhve <git@garhve.com>
Date: Mon, 9 Jan 2023 18:34:39 +0800
Subject: finish chapter 11

---
 .../adder/src/lib.rs                               | 51 ++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 rust/theBook/chapter-11-writing-automated-tests/adder/src/lib.rs

(limited to 'rust/theBook/chapter-11-writing-automated-tests/adder/src')

diff --git a/rust/theBook/chapter-11-writing-automated-tests/adder/src/lib.rs b/rust/theBook/chapter-11-writing-automated-tests/adder/src/lib.rs
new file mode 100644
index 0000000..55c024c
--- /dev/null
+++ b/rust/theBook/chapter-11-writing-automated-tests/adder/src/lib.rs
@@ -0,0 +1,51 @@
+#[derive(Debug)]
+struct Rectangle {
+    width: u32,
+    height: u32,
+}
+
+impl Rectangle {
+    fn can_hold(&self, other: &Rectangle) -> bool {
+        self.width >= other.width && self.height >= other.height
+    }
+}
+
+pub fn greeting(name: &str) -> String {
+    format!("hello {}!", name)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn exception() {
+        let result = 2+2;
+        assert_eq!(result, 4);
+    }
+    #[test]
+    fn another() {
+        println!("this one will fail");
+    }
+
+    #[test]
+    fn hold() {
+        let larger = Rectangle {
+            width: 7,
+            height: 8,
+        };
+        
+        let smaller = Rectangle {
+            width: 5,
+            height: 4,
+        };
+
+        assert!(larger.can_hold(&smaller));
+    }
+
+    #[test]
+    fn greeting_contain_names() {
+        let result = greeting("caol");
+        assert!(result.contains("carol"), "gretting did not contain name, the value is {}", result);
+    }
+}
-- 
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