try {
      collection.add(sampleElement);
      fail("add succeeded on unmodifiable collection");
    } catch (UnsupportedOperationException expected) {
    }

    assertCollectionsAreEquivalent(copy, collection);

    try {
      collection.addAll(siblingCollection);
      fail("addAll succeeded on unmodifiable collection");
    } catch (UnsupportedOperationException expected) {
    }

    try {
      collection.add(sampleElement);
      fail("add succeeded on unmodifiable collection");
    } catch (UnsupportedOperationException expected) {
    }

    assertCollectionsAreEquivalent(copy, collection);

    try {
      collection.addAll(siblingCollection);
      fail("addAll succeeded on unmodifiable collection");
    } catch (UnsupportedOperationException expected) {
    }

		host, port, err := extractHostPort(testCase.addr)
		if testCase.expectedErr == nil && err != nil {
			t.Fatalf("Test %d: should succeed but failed with err: %v", i+1, err)
		}
		if testCase.expectedErr != nil && err == nil {
			t.Fatalf("Test %d:, should fail but succeeded.", i+1)
		}
		if err == nil {
			if host != testCase.host {
				t.Fatalf("Test %d: expected: %v, found: %v", i+1, testCase.host, host)
			}

		t.Run(testCase.s, func(t *testing.T) {
			endpoints, secure, err := parseEndpoints(testCase.s)
			if err != nil && testCase.success {
				t.Errorf("expected to succeed but failed with %s", err)
			}
			if !testCase.success && err == nil {
				t.Error("expected failure but succeeded instead")
			}
			if testCase.success {
				if !reflect.DeepEqual(endpoints, testCase.endpoints) {

    if: always()
    needs:
      - test-redistribute
    runs-on: ubuntu-latest
    steps:
      - name: Decide whether the needed jobs succeeded or failed
        uses: re-actors/alls-green@release/v1
        with:

    if: always()
    needs:
      - build-docs
    runs-on: ubuntu-latest
    steps:
      - name: Decide whether the needed jobs succeeded or failed
        uses: re-actors/alls-green@release/v1
        with:
          jobs: ${{ toJSON(needs) }}

    runs-on: ubuntu-latest
    steps:
      - name: Dump GitHub context
        env:
          GITHUB_CONTEXT: ${{ toJson(github) }}
        run: echo "$GITHUB_CONTEXT"
      - name: Decide whether the needed jobs succeeded or failed
        uses: re-actors/alls-green@release/v1
        with:

		}
		n, err = r.read(p)
	}
	if r.block && n > 0 {
		r.readCond.Broadcast()
	}
	return n, err
}

// TryRead read up to len(p) bytes into p like Read but it is not blocking.
// If it has not succeeded to acquire the lock, it return 0 as n and ErrAcquireLock.
func (r *RingBuffer) TryRead(p []byte) (n int, err error) {
	ok := r.mu.TryLock()
	if !ok {
		return 0, ErrAcquireLock
	}
	defer r.mu.Unlock()

    runs-on: ubuntu-latest
    steps:
      - name: Dump GitHub context
        env:
          GITHUB_CONTEXT: ${{ toJson(github) }}
        run: echo "$GITHUB_CONTEXT"
      - name: Decide whether the needed jobs succeeded or failed
        uses: re-actors/alls-green@release/v1
        with:

                }
                scriptContent =
                    """
                    echo "marking this build as successful because the retry build succeeded"
                    echo "##teamcity[buildStatus status='SUCCESS']"
                    echo "##teamcity[addBuildTag 'BuildRetrySuccess']"
                    """.trimIndent()
            }
        }
    }
}