github.com/ahlemtn/fabric@v2.1.1+incompatible/core/container/externalbuilder/metadataprovider_test.go (about)

     1  /*
     2  Copyright IBM Corp. All Rights Reserved.
     3  
     4  SPDX-License-Identifier: Apache-2.0
     5  */
     6  
     7  package externalbuilder_test
     8  
     9  import (
    10  	"archive/tar"
    11  	"bytes"
    12  	"io"
    13  
    14  	. "github.com/onsi/ginkgo"
    15  	. "github.com/onsi/gomega"
    16  
    17  	"github.com/hyperledger/fabric/core/container/externalbuilder"
    18  )
    19  
    20  var _ = Describe("Metadataprovider", func() {
    21  	var mp *externalbuilder.MetadataProvider
    22  
    23  	BeforeEach(func() {
    24  		mp = &externalbuilder.MetadataProvider{
    25  			DurablePath: "testdata",
    26  		}
    27  	})
    28  
    29  	It("packages up the metadata", func() {
    30  		data, err := mp.PackageMetadata("persisted_build")
    31  		Expect(err).NotTo(HaveOccurred())
    32  		tr := tar.NewReader(bytes.NewBuffer(data))
    33  
    34  		headerSizes := map[string]int64{
    35  			"META-INF/":           0,
    36  			"META-INF/index.json": 3,
    37  		}
    38  
    39  		headers := 0
    40  		for {
    41  			header, err := tr.Next()
    42  			if err != nil {
    43  				Expect(err).To(Equal(io.EOF))
    44  				break
    45  			}
    46  
    47  			headers++
    48  			By("checking " + header.Name)
    49  			size, ok := headerSizes[header.Name]
    50  			Expect(ok).To(BeTrue())
    51  			Expect(size).To(Equal(header.Size))
    52  		}
    53  
    54  		Expect(headers).To(Equal(2))
    55  	})
    56  
    57  	When("the build does not exist", func() {
    58  		It("returns nil", func() {
    59  			data, err := mp.PackageMetadata("fake_missing_build")
    60  			Expect(err).NotTo(HaveOccurred())
    61  			Expect(data).To(BeNil())
    62  		})
    63  	})
    64  
    65  	When("the build is not a directory", func() {
    66  		It("returns an error", func() {
    67  			_, err := mp.PackageMetadata("normal_archive.tar.gz")
    68  			Expect(err).To(MatchError("could not stat path: stat testdata/normal_archive.tar.gz/release: not a directory"))
    69  		})
    70  	})
    71  })