sv.setExtension("jar");
        sv.setUpdated("20200710072412");
        target.getVersioning().addSnapshotVersion(sv);

        Metadata source = createMetadataFromArtifact(artifact);
        // nothing should be actually changed, but still merge returns true
        assertTrue(target.merge(source));

        // NOTE! Merge updates last updated to source

                }
            }
            if (commonPrefix != null) {
                commonPrefixes.add(commonPrefix);
            }
            if (remainder.equals(previous)) {
                // could do nothing with the first, let's go with the next one
                remainder.remove(0);
            }
        }
        return commonPrefixes;
    }

     * <p>
     * An exception must be provided in the spec.
     * <p>
     * The spec must specify the exception, the problem label, and the category. Any additional configuration is optional.
     *
     * @return nothing, the method throws an exception
     * @since 8.6
     */
    RuntimeException throwing(Action<ProblemSpec> spec);

    /**

     * If canLoad() returns false, then this method will do nothing and will return empty result.
     */
    Optional<BuildCacheLoadResult> maybeLoad(BuildCacheKey key, File toFile, Function<File, BuildCacheLoadResult> unpackFunction);

    boolean canStore();

    /**
     * Stores the file to the cache.
     *
     * If canStore() returns false, then this method will do nothing and will return false.
     *

	if errors.Is(err, profile.ErrNoData) {
		// Treat a completely empty file the same as a profile with no
		// samples: nothing to do.
		return emptyProfile(), nil
	} else if err != nil {
		return nil, fmt.Errorf("error parsing profile: %w", err)
	}

	if len(p.Sample) == 0 {
		// We accept empty profiles, but there is nothing to do.
		return emptyProfile(), nil
	}

	valueIndex := -1
	for i, s := range p.SampleType {

      BlankLine();
      BlockOpen("void TestFunction()");
      {
        Statement("int i = 1");
        BlankLine();
        BlockOpen("while (i == 1)");
        {
          CommentLine("Do nothing, really....");
          CodeLine("#if 0");
          Statement("call()");
          CodeLine("#endif");
          BlockClose();
        }
        BlockClose("  // comment ending TestFunction");
      }
    }

	data, err := os.ReadFile(zip + "hash")
	if err != nil {
		if zipErr != nil && errors.Is(zipErr, fs.ErrNotExist) &&
			dirErr != nil && errors.Is(dirErr, fs.ErrNotExist) {
			// Nothing downloaded yet. Nothing to verify.
			return nil
		}
		errs = append(errs, fmt.Errorf("%s %s: missing ziphash: %v", mod.Path, mod.Version, err))
		return errs
	}
	h := string(bytes.TrimSpace(data))

import static org.gradle.internal.Actions.toAction

class ActionsTest extends Specification {

    def "do nothing indeed does nothing"() {
        given:
        def thing = Mock(Object)

        when:
        doNothing().execute(thing)

        then:
        0 * thing._(*_)
    }

    def "can do nothing on null"() {
        when:
        doNothing().execute(null)

        then:
        notThrown(Throwable)

	case *MapType:
		Walk(v, n.Key)
		Walk(v, n.Value)

	case *ChanType:
		Walk(v, n.Value)

	// Statements
	case *BadStmt:
		// nothing to do

	case *DeclStmt:
		Walk(v, n.Decl)

	case *EmptyStmt:
		// nothing to do

	case *LabeledStmt:
		Walk(v, n.Label)
		Walk(v, n.Stmt)

	case *ExprStmt:
		Walk(v, n.X)

	case *SendStmt:
		Walk(v, n.Chan)

    def store = new DefaultVcsMappingsStore(factory)

    def "does nothing when no rules defined"() {
        def selector = Stub(ModuleComponentSelector)

        when:
        def spec = store.locateVcsFor(selector)

        then:
        spec == null
        0 * factory._
    }

    def "does nothing when no rule accepts selector"() {
        def selector = Stub(ModuleComponentSelector)