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If the body of the lambda passed to `assertThrows` contains multiple statements,
execution of the lambda will stop at the first statement that throws an
exception and all subsequent statements will be ignored.
This means that:
* Any set-up logic in the lambda will cause the test to incorrectly pass if it
throws the expected exception.
* Any assertions that run after the statement that throws will never be
executed.
Don't do this:
```java
assertThrows(
UnsupportedOperationException.class,
() -> {
AppendOnlyList list = new AppendOnlyList();
list.add(0, "a");
list.remove(0);
assertThat(list).containsExactly("a");
});
```
Do this instead:
```java
AppendOnlyList list = new AppendOnlyList();
list.add(0, "a");
assertThrows(
UnsupportedOperationException.class,
() -> list.remove(0));
assertThat(list).containsExactly("a");
```
|
