* non-@Nullable parameter to trigger a NullPointerException.
     *
     * (We still define this empty method to keep PackageSanityTests from generating its own
     * automated nullness tests, which would fail.)
     */
  }

  private static final Object IGNORE_ME =
      new Object() {
        @Override
        public String toString() {
          throw new AssertionFailedError();

org.hamcrest.internal.ArrayIterator; import org.hamcrest.internal.SelfDescribingValueI; /** * A {@link Description} that is stored as a string. */ public abstract class BaseDescription implements Description { @Override public Description appendText(String text) { append(text); return this; } @Override public Description appendDescriptionOf(SelfDescribing value) { value.describeTo(this); return this; } @Override public Description appendValue(Object value) { if (value == null) { append("null"); } else if (value instanceof...

In this example we'll create a temporary database only for the tests.

## File structure

We create a new file at `sql_app/tests/test_sql_app.py`.

So the new file structure looks like:

``` hl_lines="9-11"
.
└── sql_app
    ├── __init__.py
    ├── crud.py
    ├── database.py
    ├── main.py
    ├── models.py
    ├── schemas.py
    └── tests
        ├── __init__.py
        └── test_sql_app.py
```

Para esto es recomendable primero añadir tests a tu aplicación.

Con **FastAPI** es muy fácil (gracias a Starlette), revisa la documentación [Testing](../tutorial/testing.md){.internal-link target=_blank}

Luego de tener los tests, puedes actualizar la versión de **FastAPI** a una más reciente y asegurarte de que tu código funciona correctamente ejecutando los tests.

    $ mvn jdeb:jdeb # .deb package

### Generate Source Code

    $ mvn dbflute:download # (one time command)
    $ mvn dbflute:freegen
    $ mvn license:format

### Integration Tests

Launch Fess Server and run the following command:

    $ mvn test -P integrationTests -Dtest.fess.url="http://localhost:8080" -Dtest.search_engine.url="http://localhost:9201"

To run a single test case, you can use:

import com.google.common.base.Preconditions;
import com.google.common.escape.UnicodeEscaper;
import junit.framework.TestCase;

/**
 * Tests for {@link PercentEscaper}.
 *
 * @author David Beaumont
 */
@GwtCompatible
public class PercentEscaperTest extends TestCase {

  /** Tests that the simple escaper treats 0-9, a-z and A-Z as safe */
  public void testSimpleEscaper() {
    UnicodeEscaper e = new PercentEscaper("", false);

* text eol=lf

#
# The above will handle all files NOT found below
# https://help.github.com/articles/dealing-with-line-endings/
# https://github.com/Danimoth/gitattributes

# These are explicitly windows files and should use crlf
*.bat           text eol=crlf

# These files are text and should be normalized (Convert crlf => lf)
*.bash          text eol=lf
*.css           text diff=css
*.htm           text diff=html

		fields fields
		wantOk bool
	}
	var tests []test
	for i := range valueBuilders {
		a := valueBuilders[i]()
		for j := range valueBuilders {
			b := valueBuilders[j]()
			tests = append(tests, test{
				name: fmt.Sprint(a.GetTypeString(), "==", b.GetTypeString()),
				fields: fields{
					a: *a, b: *b,
				},
				wantOk: i == j,
			})
		}
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {

Und diese Python-Dateien werden beim Generieren der Site in die Dokumentation eingefügt.

### Dokumentation für Tests

Tatsächlich arbeiten die meisten Tests mit den Beispielquelldateien in der Dokumentation.

Dadurch wird sichergestellt, dass:

* Die Dokumentation aktuell ist.
* Die Dokumentationsbeispiele ohne Änderung ausgeführt werden können.

OkHttp HPACK tests
==================

These tests use the [hpack-test-case][1] project to validate OkHttp's HPACK
implementation.  The HPACK test cases are in a separate git submodule, so to
initialize them, you must run:

    git submodule init
    git submodule update

TODO
----

 * Add maven goal to avoid manual call to git submodule init.
 * Make hpack-test-case update itself from git, and run new tests.