67 lines
1.6 KiB
Go
67 lines
1.6 KiB
Go
package tarsum // import "github.com/docker/docker/pkg/tarsum"
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import (
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"io"
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"io/ioutil"
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"os"
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"testing"
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)
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// Try to remove tarsum (in the BuilderContext) that do not exists, won't change a thing
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func TestTarSumRemoveNonExistent(t *testing.T) {
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filename := "testdata/46af0962ab5afeb5ce6740d4d91652e69206fc991fd5328c1a94d364ad00e457/layer.tar"
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reader, err := os.Open(filename)
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if err != nil {
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t.Fatal(err)
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}
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defer reader.Close()
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ts, err := NewTarSum(reader, false, Version0)
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if err != nil {
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t.Fatal(err)
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}
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// Read and discard bytes so that it populates sums
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_, err = io.Copy(ioutil.Discard, ts)
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if err != nil {
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t.Errorf("failed to read from %s: %s", filename, err)
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}
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expected := len(ts.GetSums())
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ts.(BuilderContext).Remove("")
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ts.(BuilderContext).Remove("Anything")
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if len(ts.GetSums()) != expected {
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t.Fatalf("Expected %v sums, go %v.", expected, ts.GetSums())
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}
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}
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// Remove a tarsum (in the BuilderContext)
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func TestTarSumRemove(t *testing.T) {
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filename := "testdata/46af0962ab5afeb5ce6740d4d91652e69206fc991fd5328c1a94d364ad00e457/layer.tar"
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reader, err := os.Open(filename)
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if err != nil {
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t.Fatal(err)
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}
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defer reader.Close()
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ts, err := NewTarSum(reader, false, Version0)
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if err != nil {
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t.Fatal(err)
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}
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// Read and discard bytes so that it populates sums
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_, err = io.Copy(ioutil.Discard, ts)
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if err != nil {
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t.Errorf("failed to read from %s: %s", filename, err)
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}
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expected := len(ts.GetSums()) - 1
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ts.(BuilderContext).Remove("etc/sudoers")
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if len(ts.GetSums()) != expected {
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t.Fatalf("Expected %v sums, go %v.", expected, len(ts.GetSums()))
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}
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}
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