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Document that assertThrows allows exception subtypes #3729

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merged 3 commits into from May 2, 2024
Merged

Document that assertThrows allows exception subtypes #3729

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83c415b
Document that `assertThrows` allows exception subtypes
Marcono1234 Mar 15, 2024
fb6fd28
Use 'thereof'
marcphilipp May 2, 2024
e4716b4
Merge branch 'main' into assertThrows-doc-exception-subtypes
marcphilipp May 2, 2024
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27 changes: 21 additions & 6 deletions junit-jupiter-api/src/main/java/org/junit/jupiter/api/Assertions.java
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Expand Up @@ -3113,11 +3113,16 @@ public static <T extends Throwable> T assertThrowsExactly(Class<T> expectedType,
* <em>Assert</em> that execution of the supplied {@code executable} throws
* an exception of the {@code expectedType} and return the exception.
*
* <p>If no exception is thrown, or if an exception of a different type is
* thrown, this method will fail.
* <p>The assertion passes if the thrown exception type is the same as
* {@code expectedType} or a subtype thereof. To check for the exact thrown
* type use {@link #assertThrowsExactly(Class, Executable) assertThrowsExactly}.
* If no exception is thrown, or if an exception of a different type is thrown,
* this method will fail.
*
* <p>If you do not want to perform additional checks on the exception instance,
* ignore the return value.
*
* @see #assertThrowsExactly(Class, Executable)
*/
public static <T extends Throwable> T assertThrows(Class<T> expectedType, Executable executable) {
return AssertThrows.assertThrows(expectedType, executable);
Expand All @@ -3127,8 +3132,11 @@ public static <T extends Throwable> T assertThrows(Class<T> expectedType, Execut
* <em>Assert</em> that execution of the supplied {@code executable} throws
* an exception of the {@code expectedType} and return the exception.
*
* <p>If no exception is thrown, or if an exception of a different type is
* thrown, this method will fail.
* <p>The assertion passes if the thrown exception type is the same as
* {@code expectedType} or a subtype thereof. To check for the exact thrown
* type use {@link #assertThrowsExactly(Class, Executable, String) assertThrowsExactly}.
* If no exception is thrown, or if an exception of a different type is thrown,
* this method will fail.
*
* <p>If you do not want to perform additional checks on the exception instance,
* ignore the return value.
Expand All @@ -3138,6 +3146,8 @@ public static <T extends Throwable> T assertThrows(Class<T> expectedType, Execut
* exception. To assert the expected message of the thrown exception, you must
* use a separate, subsequent assertion against the exception returned from
* this method.
*
* @see #assertThrowsExactly(Class, Executable, String)
*/
public static <T extends Throwable> T assertThrows(Class<T> expectedType, Executable executable, String message) {
return AssertThrows.assertThrows(expectedType, executable, message);
Expand All @@ -3147,8 +3157,11 @@ public static <T extends Throwable> T assertThrows(Class<T> expectedType, Execut
* <em>Assert</em> that execution of the supplied {@code executable} throws
* an exception of the {@code expectedType} and return the exception.
*
* <p>If no exception is thrown, or if an exception of a different type is
* thrown, this method will fail.
* <p>The assertion passes if the thrown exception type is the same as
* {@code expectedType} or a subtype thereof. To check for the exact thrown
* type use {@link #assertThrowsExactly(Class, Executable, Supplier) assertThrowsExactly}.
* If no exception is thrown, or if an exception of a different type is thrown,
* this method will fail.
*
* <p>If necessary, the failure message will be retrieved lazily from the
* supplied {@code messageSupplier}. Note that the failure message is
Expand All @@ -3159,6 +3172,8 @@ public static <T extends Throwable> T assertThrows(Class<T> expectedType, Execut
*
* <p>If you do not want to perform additional checks on the exception instance,
* ignore the return value.
*
* @see #assertThrowsExactly(Class, Executable, Supplier)
*/
public static <T extends Throwable> T assertThrows(Class<T> expectedType, Executable executable,
Supplier<String> messageSupplier) {
Expand Down