ImmutableCapabilities capabilities = readCapabilities(decoder);
            boolean isExternalVariant = decoder.readBoolean();
            ImmutableList<? extends ModuleComponentArtifactMetadata> artifacts = readFiles(decoder, metadata.getId());

            RealisedConfigurationMetadata configurationMetadata = new RealisedConfigurationMetadata(metadata.getId(), configurationName, configuration.isTransitive(), configuration.isVisible(),

            if (hasExplicitExcludes) {
                excludes = ImmutableList.copyOf(readMavenExcludes(decoder));
            }
            ImmutableList<? extends ModuleComponentArtifactMetadata> artifacts = readFiles(decoder, metadata.getId());

            RealisedConfigurationMetadata configurationMetadata = new RealisedConfigurationMetadata(
                metadata.getId(),
                configurationName,

        return new GradleDependencyMetadata(selector, excludes, constraint, endorsing, reason, force, artifact);
    }

    protected ImmutableList<? extends ModuleComponentArtifactMetadata> readFiles(Decoder decoder, ModuleComponentIdentifier componentIdentifier) throws IOException {
        ImmutableList.Builder<ModuleComponentArtifactMetadata> artifacts = new ImmutableList.Builder<>();

package fs

import "io"

// ReadFileFS is the interface implemented by a file system
// that provides an optimized implementation of [ReadFile].
type ReadFileFS interface {
	FS

	// ReadFile reads the named file and returns its contents.
	// A successful call returns a nil error, not io.EOF.
	// (Because ReadFile reads the whole file, the expected EOF

		}
		filenames = append(filenames, list...)
	}
	return parseFiles(t, readFileFS(fsys), filenames...)
}

func readFileOS(file string) (name string, b []byte, err error) {
	name = filepath.Base(file)
	b, err = os.ReadFile(file)
	return
}

func readFileFS(fsys fs.FS) func(string) (string, []byte, error) {
	return func(file string) (name string, b []byte, err error) {

var sysValue int

type readFileOnly struct{ ReadFileFS }

func (readFileOnly) Open(name string) (File, error) { return nil, ErrNotExist }

type openOnly struct{ FS }

func TestReadFile(t *testing.T) {
	// Test that ReadFile uses the method when present.
	data, err := ReadFile(readFileOnly{testFsys}, "hello.txt")
	if string(data) != "hello, world" || err != nil {

		}
		filenames = append(filenames, list...)
	}
	return parseFiles(t, readFileFS(fsys), filenames...)
}

func readFileOS(file string) (name string, b []byte, err error) {
	name = filepath.Base(file)
	b, err = os.ReadFile(file)
	return
}

func readFileFS(fsys fs.FS) func(string) (string, []byte, error) {
	return func(file string) (name string, b []byte, err error) {

// The separate type avoids exposing the ReadTiles and SaveTiles
// methods on Client itself.
type tileReader struct {
	c *Client
}

func (r *tileReader) Height() int {
	return r.c.tileHeight
}

// ReadTiles reads and returns the requested tiles,
// either from the on-disk cache or the server.
func (r *tileReader) ReadTiles(tiles []tlog.Tile) ([][]byte, error) {

			data2[i]++
		}
		data2, err = fsys.ReadFile(file)
		if err != nil {
			t.errorf("%s: second call to fsys.ReadFile: %w", file, err)
			return
		}
		t.checkFileRead(file, "Readall vs second fsys.ReadFile", data, data2)

		t.checkBadPath(file, "ReadFile",
			func(name string) error { _, err := fsys.ReadFile(name); return err })
	}

	// Check that fs.ReadFile works with t.fsys.

        then:
        outputs.stdOut.readLines() == ['message']
        outputs.stdErr == ''
    }

    def rendersErrorLogEventsToStdErr() {
        when:
        renderer.attachSystemOutAndErr()
        renderer.onOutput(event('message', LogLevel.ERROR))

        then:
        outputs.stdOut == ''
        outputs.stdErr.readLines() == ['message']
    }