given:
        zip(dir("dir"), file("dir/file1"), file("file2"))

        when:
        TestFile expandDir = tmpDir.getTestDirectory().file("expanded")
        zipFile.unzipTo(expandDir)

        then:
        expandDir.file("dir/file1").assertContents(equalTo("contents of dir/file1"))
        expandDir.file("file2").assertContents(equalTo("contents of file2"))
    }

    void createsDeflatedZipFile() {
        given:

            runtimeOnly 'commons-lang:commons-lang:2.6'
        }
        """

        when:
        run 'distZip'

        then:
        def expandDir = file('expanded')
        file('build/distributions/DefaultJavaDistribution.zip').unzipTo(expandDir)
        expandDir.assertHasDescendants(
                'DefaultJavaDistribution/lib/commons-collections-3.2.2.jar',
                'DefaultJavaDistribution/lib/commons-cli-1.2.jar',

        def expandDir = file('expandedUncompressed')
        file('build/uncompressedTest.zip').unzipTo(expandDir)
        expandDir.assertHasDescendants(
            'prefix/dir1/file1.txt',
            'prefix/file1.txt',
            'prefix/dir2/file2.txt',
            'scripts/dir1',
            'scripts/dir2/script.sh')

	// The order of the contexts below matters: we always prefer instances in the
	// expanding instance context in order to preserve reference cycles.
	//
	// Invariant: if expanding != nil, the returned instance will be the instance
	// recorded in expanding.inst.ctxt.
	var ctxts []*Context
	if expanding != nil {
		ctxts = append(ctxts, expanding.inst.ctxt)
	}

	// The order of the contexts below matters: we always prefer instances in the
	// expanding instance context in order to preserve reference cycles.
	//
	// Invariant: if expanding != nil, the returned instance will be the instance
	// recorded in expanding.inst.ctxt.
	var ctxts []*Context
	if expanding != nil {
		ctxts = append(ctxts, expanding.inst.ctxt)
	}

        tar(file("dir/file1"), file("file2"))

        TestFile expandDir = temporaryFolder.getTestDirectory().file("expanded")
        tarFile.untarTo(expandDir)
        expandDir.file("dir/file1").assertContents(equalTo("contents of dir/file1"))
        expandDir.file("file2").assertContents(equalTo("contents of file2"))
    }

    def "tar file contains expected permissions"() {

// incoming type. If a substitution took place, the result type is different
// from the incoming type.
//
// If expanding is non-nil, it is the instance type currently being expanded.
// One of expanding or ctxt must be non-nil.
func (check *Checker) subst(pos token.Pos, typ Type, smap substMap, expanding *Named, ctxt *Context) Type {
	assert(expanding != nil || ctxt != nil)

	if smap.empty() {
		return typ
	}

	// common cases

// from the incoming type.
//
// If expanding is non-nil, it is the instance type currently being expanded.
// One of expanding or ctxt must be non-nil.
func (check *Checker) subst(pos syntax.Pos, typ Type, smap substMap, expanding *Named, ctxt *Context) Type {
	assert(expanding != nil || ctxt != nil)

	if smap.empty() {
		return typ
	}

	// common cases

		upperBoundCapacity int
		interval           time.Duration
		expectCapacity     int
		expectStartIndex   int
	}{
		{
			name:               "[capacity not equals 4*n] events inside eventFreshDuration cause cache expanding",
			eventCount:         5,
			cacheCapacity:      5,
			lowerBoundCapacity: 5 / 2,
			upperBoundCapacity: 5 * 2,
			interval:           eventFreshDuration / 6,
			expectCapacity:     10,

	// Only pass the expanding context to the new instance if their packages
	// match. Since type reference cycles are only possible within a single
	// package, this is sufficient for the purposes of short-circuiting cycles.
	// Avoiding passing the context in other cases prevents unnecessary coupling
	// of types across packages.
	if expanding != nil && expanding.Obj().pkg == obj.pkg {
		inst.ctxt = expanding.inst.ctxt
	}