update: translate tests

exercise/exercises/tests/README.md

@@ -1,7 +1,7 @@
-# Tests
+# 测试
 
-Going out of order from the book to cover tests -- many of the following exercises will ask you to make tests pass!
+这次不按书本上的顺序介绍测试——接下来的很多练习都会要求你通过测试！
 
-## Further information
+## 更多信息
 
 - [Writing Tests](https://doc.rust-lang.org/book/ch11-01-writing-tests.html)

exercise/exercises/tests/tests1.rs

@@ -1,10 +1,10 @@
 // tests1.rs
-// Tests are important to ensure that your code does what you think it should do.
-// Tests can be run on this file with the following command:
+// 测试对于确保代码实现了预期功能非常重要。
+// 可以用下面的命令对当前文件中的代码进行测试：
 // rustlings run tests1
 
-// This test has a problem with it -- make the test compile! Make the test
-// pass! Make the test fail! Execute `rustlings hint tests1` for hints :)
+// 关于测试还有个问题——如何成功编译测试、通过测试或者使测试失败？
+// 执行 `rustlings hint tests1` 获取提示 :)
 
 // I AM NOT DONE
 

exercise/exercises/tests/tests2.rs

@@ -1,6 +1,6 @@
 // tests2.rs
-// This test has a problem with it -- make the test compile! Make the test
-// pass! Make the test fail! Execute `rustlings hint tests2` for hints :)
+// 让测试能够编译然后通过测试和使测试失败！
+// 执行 `rustlings hint tests2` 获取提示 :)
 
 // I AM NOT DONE
 

exercise/exercises/tests/tests3.rs

@@ -1,8 +1,7 @@
 // tests3.rs
-// This test isn't testing our function -- make it do that in such a way that
-// the test passes. Then write a second test that tests whether we get the result
-// we expect to get when we call `is_even(5)`.
-// Execute `rustlings hint tests3` for hints :)
+// 这个测试不是在测试我们的函数——想些方法让它的返回值可以通过测试。
+// 在第二个测试判断调用 `is_even(5)` 是否得到了预期的结果。
+// 执行 `rustlings hint tests3` 获取提示 :)
 
 // I AM NOT DONE
 
@@ -15,12 +14,12 @@ mod tests {
     use super::*;
 
     #[test]
-    fn is_true_when_even() {
+    fn is_true_when_even() {// 偶数将返回 true
         assert!();
     }
 
     #[test]
-    fn is_false_when_odd() {
+    fn is_false_when_odd() {// 奇数将返回 false
         assert!();
     }
 }

exercise/info.toml

@@ -612,30 +612,28 @@ name = "tests1"
 path = "exercises/tests/tests1.rs"
 mode = "test"
 hint = """
-You don't even need to write any code to test -- you can just test values and run that, even
-though you wouldn't do that in real life :) `assert!` is a macro that needs an argument.
-Depending on the value of the argument, `assert!` will do nothing (in which case the test will
-pass) or `assert!` will panic (in which case the test will fail). So try giving different values
-to `assert!` and see which ones compile, which ones pass, and which ones fail :)"""
+你甚至不需要写任何用于测试的代码——直接填入某个值然后运行，即使在现实中这样做没什么意义 :) 
+`assert!` 是需要一个参数的宏。根据参数的值，`assert!` 可能什么也不会发生（这意味将通
+过测试）或者 `assert!` 引发了 panic （测试失败）。所以试着去给 `assert!` 赋予不同的值，看
+看哪些可以编译，哪些能够通过，哪些将造成失败 :)"""
 
 [[exercises]]
 name = "tests2"
 path = "exercises/tests/tests2.rs"
 mode = "test"
 hint = """
-Like the previous exercise, you don't need to write any code to get this test to compile and
-run. `assert_eq!` is a macro that takes two arguments and compares them. Try giving it two
-values that are equal! Try giving it two arguments that are different! Try giving it two values
-that are of different types! Try switching which argument comes first and which comes second!"""
+和前面的练习一样，你无需编写任何代码就可以编译和运行这个测试。
+`assert_eq!` 是一个接受两个参数并比较两者的宏。尝试给它两个相等、两个不同的
+值和两个不同类型的值！也不妨试试调换下两个参数的位置"""
 
 [[exercises]]
 name = "tests3"
 path = "exercises/tests/tests3.rs"
 mode = "test"
 hint = """
-You can call a function right where you're passing arguments to `assert!` -- so you could do
-something like `assert!(having_fun())`. If you want to check that you indeed get false, you
-can negate the result of what you're doing using `!`, like `assert!(!having_fun())`."""
+你可以在 `assert!` 接受参数的位置直接调用一个函数——所以你可以做一些类似于
+`assert!(having_fun())` 的事情。如果你想检查得到的值是不是 false ，可以
+用 `!` 来取反结果，例如 `assert!(!having_fun())`。"""
 
 # TEST 3