Set<Character> positive = Sets.newHashSetWithExpectedSize(chars.length);
    for (char c : chars) {
      positive.add(c);
    }
    for (int c = 0; c <= Character.MAX_VALUE; c++) {
      assertFalse(positive.contains(Character.valueOf((char) c)) ^ m.matches((char) c));
    }
  }

  static char[] randomChars(Random rand, int size) {
    Set<Character> chars = new HashSet<>(size);

  }

  @J2ktIncompatible // b/239034072: Kotlin varargs copy parameter arrays.
  public void testAsList_isAView() {
    byte[] array = {(byte) 0, (byte) 1};
    List<Byte> list = Bytes.asList(array);
    list.set(0, (byte) 2);
    assertThat(array).isEqualTo(new byte[] {(byte) 2, (byte) 1});
    array[1] = (byte) 3;
    assertThat(list).containsExactly((byte) 2, (byte) 3).inOrder();
  }

## Developing

If you already cloned the <a href="https://github.com/fastapi/fastapi" class="external-link" target="_blank">fastapi repository</a> and you want to deep dive in the code, here are some guidelines to set up your environment.

### Virtual environment

Follow the instructions to create and activate a [virtual environment](virtual-environments.md){.internal-link target=_blank} for the internal code of `fastapi`.

	token, err := getTokenString(creds.AccessKey, creds.SecretKey)
	if err != nil {
		t.Fatalf("unable get token %s", err)
	}
	testCases := []struct {
		req         *http.Request
		expectedErr error
	}{
		// Set valid authorization header.
		{
			req: &http.Request{
				Header: http.Header{
					"Authorization": []string{token},
				},
			},
			expectedErr: nil,
		},
		// No authorization header.
		{

 *       href="https://github.com/google/guava/issues/6126#issuecomment-1204399671">treat it
 *       identically to {@code Nullable} as of version 0.9.9</a>. To treat it that way before then,
 *       you can set {@code
 *       -XepOpt:NullAway:CustomNullableAnnotations=com.google.common.base.ParametricNullness,...,com.google.common.util.concurrent.ParametricNullness},

        ArtifactFilter dependencyFilter = new ScopeArtifactFilter( Artifact.SCOPE_COMPILE );

        MavenProject project = new MavenProject( new Model() );

        Set<Artifact> result = project.createArtifacts( dependencyFilter );

        for (Iterator<Artifact> it = result.iterator(); it.hasNext(); )
        {
            Artifact artifact = it.next();

    }
]]></code>
        </codeSegment>
      </codeSegments>
    </class>
    <class>
      <name>Execution</name>
      <version>1.0.0+</version>
      <description>A set of goals to execute.</description>
      <fields>
        <field>
          <name>configuration</name>
          <version>1.0.0+</version>
          <type>DOM</type>

dependencies {
  generateIdnaMappingTableConfiguration(projects.okhttpIdnaMappingTable)
}
val generateIdnaMappingTable by tasks.creating(JavaExec::class.java) {
  outputs.dir("$buildDir/generated/sources/idnaMappingTable")
  mainClass.set("okhttp3.internal.idn.GenerateIdnaMappingTableCode")
  args("$buildDir/generated/sources/idnaMappingTable")
  classpath = generateIdnaMappingTableConfiguration
}

kotlin {
  sourceSets {
    getByName("main") {

              + " map in that class.");
    }
    Object result;
    try {
      result = supplier.get();
    } catch (Throwable t) {
      if (predicate.apply(t)) {
        // We are careful to set up INSTANCE_OF to match each Predicate to its target Class.
        @SuppressWarnings("unchecked")
        T caught = (T) t;
        return caught;
      }
      throw new AssertionError(

              + " map in that class.");
    }
    Object result;
    try {
      result = supplier.get();
    } catch (Throwable t) {
      if (predicate.apply(t)) {
        // We are careful to set up INSTANCE_OF to match each Predicate to its target Class.
        @SuppressWarnings("unchecked")
        T caught = (T) t;
        return caught;
      }
      throw new AssertionError(