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Method PackageRefList.Has(). #80

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This commit is contained in:
Andrey Smirnov
2014-08-28 22:25:19 +04:00
parent 02d86422a8
commit c56ecab06f
2 changed files with 21 additions and 0 deletions
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8
deb/reflist.go
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@@ -84,6 +84,14 @@ func (l *PackageRefList) ForEach(handler func([]byte) error) error {
return err
}
// Has checks whether package is part of reflist
func (l *PackageRefList) Has(p *Package) bool {
key := p.Key("")
i := sort.Search(len(l.Refs), func(j int) bool { return bytes.Compare(l.Refs[j], key) >= 0 })
return i < len(l.Refs) && bytes.Compare(l.Refs[i], key) == 0
}
// Substract returns all packages in l that are not in r
func (l *PackageRefList) Substract(r *PackageRefList) *PackageRefList {
result := &PackageRefList{Refs: make([][]byte, 0, 128)}

13
deb/reflist_test.go
View File

@@ -128,6 +128,19 @@ func (s *PackageRefListSuite) TestPackageRefListForeach(c *C) {
c.Check(err, Equals, e)
}
func (s *PackageRefListSuite) TestHas(c *C) {
s.list.Add(s.p1)
s.list.Add(s.p3)
s.list.Add(s.p5)
reflist := NewPackageRefListFromPackageList(s.list)
c.Check(reflist.Has(s.p1), Equals, true)
c.Check(reflist.Has(s.p3), Equals, true)
c.Check(reflist.Has(s.p5), Equals, true)
c.Check(reflist.Has(s.p2), Equals, true)
c.Check(reflist.Has(s.p6), Equals, false)
}
func (s *PackageRefListSuite) TestSubstract(c *C) {
r1 := []byte("r1")
r2 := []byte("r2")