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decoder_test.go
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decoder_test.go
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// Copyright © 2019 Ettore Di Giacinto <[email protected]>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, see <http://www.gnu.org/licenses/>.
package solver_test
import (
"strconv"
"github.com/mudler/luet/pkg/api/core/types"
pkg "github.com/mudler/luet/pkg/database"
. "github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
. "github.com/mudler/luet/pkg/solver"
)
var _ = Describe("Decoder", func() {
db := pkg.NewInMemoryDatabase(false)
dbInstalled := pkg.NewInMemoryDatabase(false)
dbDefinitions := pkg.NewInMemoryDatabase(false)
s := NewSolver(types.SolverOptions{Type: types.SolverSingleCoreSimple}, dbInstalled, dbDefinitions, db)
BeforeEach(func() {
db = pkg.NewInMemoryDatabase(false)
dbInstalled = pkg.NewInMemoryDatabase(false)
dbDefinitions = pkg.NewInMemoryDatabase(false)
s = NewSolver(types.SolverOptions{Type: types.SolverSingleCoreSimple}, dbInstalled, dbDefinitions, db)
})
Context("Assertion ordering", func() {
eq := 0
for index := 0; index < 300; index++ { // Just to make sure we don't have false positives
It("Orders them correctly #"+strconv.Itoa(index), func() {
C := types.NewPackage("C", "", []*types.Package{}, []*types.Package{})
E := types.NewPackage("E", "", []*types.Package{}, []*types.Package{})
F := types.NewPackage("F", "", []*types.Package{}, []*types.Package{})
G := types.NewPackage("G", "", []*types.Package{}, []*types.Package{})
H := types.NewPackage("H", "", []*types.Package{G}, []*types.Package{})
D := types.NewPackage("D", "", []*types.Package{H}, []*types.Package{})
B := types.NewPackage("B", "", []*types.Package{D}, []*types.Package{})
A := types.NewPackage("A", "", []*types.Package{B}, []*types.Package{})
for _, p := range []*types.Package{A, B, C, D, E, F, G} {
_, err := dbDefinitions.CreatePackage(p)
Expect(err).ToNot(HaveOccurred())
}
for _, p := range []*types.Package{C} {
_, err := dbInstalled.CreatePackage(p)
Expect(err).ToNot(HaveOccurred())
}
solution, err := s.Install([]*types.Package{A})
Expect(solution).To(ContainElement(types.PackageAssert{Package: A, Value: true}))
Expect(solution).To(ContainElement(types.PackageAssert{Package: B, Value: true}))
Expect(solution).To(ContainElement(types.PackageAssert{Package: D, Value: true}))
Expect(solution).To(ContainElement(types.PackageAssert{Package: C, Value: true}))
Expect(solution).To(ContainElement(types.PackageAssert{Package: H, Value: true}))
Expect(solution).To(ContainElement(types.PackageAssert{Package: G, Value: true}))
Expect(len(solution)).To(Equal(6))
Expect(err).ToNot(HaveOccurred())
solution, err = solution.Order(dbDefinitions, A.GetFingerPrint())
Expect(err).ToNot(HaveOccurred())
// Expect(len(solution)).To(Equal(6))
Expect(solution[0].Package.GetName()).To(Equal("G"))
Expect(solution[1].Package.GetName()).To(Equal("H"))
Expect(solution[2].Package.GetName()).To(Equal("D"))
Expect(solution[3].Package.GetName()).To(Equal("B"))
eq += len(solution)
//Expect(solution[4].Package.GetName()).To(Equal("A"))
//Expect(solution[5].Package.GetName()).To(Equal("C")) As C doesn't have any dep it can be in both positions
})
}
It("Expects perfect equality when ordered", func() {
Expect(eq).To(Equal(300 * 5)) // assertions lenghts
})
disequality := 0
equality := 0
for index := 0; index < 300; index++ { // Just to make sure we don't have false positives
It("Doesn't order them correctly otherwise #"+strconv.Itoa(index), func() {
C := types.NewPackage("C", "", []*types.Package{}, []*types.Package{})
E := types.NewPackage("E", "", []*types.Package{}, []*types.Package{})
F := types.NewPackage("F", "", []*types.Package{}, []*types.Package{})
G := types.NewPackage("G", "", []*types.Package{}, []*types.Package{})
H := types.NewPackage("H", "", []*types.Package{G}, []*types.Package{})
D := types.NewPackage("D", "", []*types.Package{H}, []*types.Package{})
B := types.NewPackage("B", "", []*types.Package{D}, []*types.Package{})
A := types.NewPackage("A", "", []*types.Package{B}, []*types.Package{})
for _, p := range []*types.Package{A, B, C, D, E, F, G} {
_, err := dbDefinitions.CreatePackage(p)
Expect(err).ToNot(HaveOccurred())
}
for _, p := range []*types.Package{C} {
_, err := dbInstalled.CreatePackage(p)
Expect(err).ToNot(HaveOccurred())
}
solution, err := s.Install([]*types.Package{A})
Expect(solution).To(ContainElement(types.PackageAssert{Package: A, Value: true}))
Expect(solution).To(ContainElement(types.PackageAssert{Package: B, Value: true}))
Expect(solution).To(ContainElement(types.PackageAssert{Package: D, Value: true}))
Expect(solution).To(ContainElement(types.PackageAssert{Package: C, Value: true}))
Expect(solution).To(ContainElement(types.PackageAssert{Package: H, Value: true}))
Expect(solution).To(ContainElement(types.PackageAssert{Package: G, Value: true}))
Expect(len(solution)).To(Equal(6))
Expect(err).ToNot(HaveOccurred())
if solution[0].Package.GetName() != "G" {
disequality++
} else {
equality++
}
if solution[1].Package.GetName() != "H" {
disequality++
} else {
equality++
}
if solution[2].Package.GetName() != "D" {
disequality++
} else {
equality++
}
if solution[3].Package.GetName() != "B" {
disequality++
} else {
equality++
}
if solution[4].Package.GetName() != "A" {
disequality++
} else {
equality++
}
})
It("Expect disequality", func() {
Expect(disequality).ToNot(Equal(0))
Expect(equality).ToNot(Equal(300 * 6))
})
}
})
Context("Assertion hashing", func() {
It("Hashes them, and could be used for comparison", func() {
C := types.NewPackage("C", "", []*types.Package{}, []*types.Package{})
E := types.NewPackage("E", "", []*types.Package{}, []*types.Package{})
F := types.NewPackage("F", "", []*types.Package{}, []*types.Package{})
G := types.NewPackage("G", "", []*types.Package{}, []*types.Package{})
H := types.NewPackage("H", "", []*types.Package{G}, []*types.Package{})
D := types.NewPackage("D", "", []*types.Package{H}, []*types.Package{})
B := types.NewPackage("B", "", []*types.Package{D}, []*types.Package{})
A := types.NewPackage("A", "", []*types.Package{B}, []*types.Package{})
for _, p := range []*types.Package{A, B, C, D, E, F, G} {
_, err := dbDefinitions.CreatePackage(p)
Expect(err).ToNot(HaveOccurred())
}
for _, p := range []*types.Package{C} {
_, err := dbInstalled.CreatePackage(p)
Expect(err).ToNot(HaveOccurred())
}
solution, err := s.Install([]*types.Package{A})
Expect(solution).To(ContainElement(types.PackageAssert{Package: A, Value: true}))
Expect(solution).To(ContainElement(types.PackageAssert{Package: B, Value: true}))
Expect(solution).To(ContainElement(types.PackageAssert{Package: D, Value: true}))
Expect(solution).To(ContainElement(types.PackageAssert{Package: C, Value: true}))
Expect(solution).To(ContainElement(types.PackageAssert{Package: H, Value: true}))
Expect(solution).To(ContainElement(types.PackageAssert{Package: G, Value: true}))
Expect(len(solution)).To(Equal(6))
Expect(err).ToNot(HaveOccurred())
solution, err = solution.Order(dbDefinitions, A.GetFingerPrint())
Expect(err).ToNot(HaveOccurred())
// Expect(len(solution)).To(Equal(6))
Expect(solution[0].Package.GetName()).To(Equal("G"))
Expect(solution[1].Package.GetName()).To(Equal("H"))
Expect(solution[2].Package.GetName()).To(Equal("D"))
Expect(solution[3].Package.GetName()).To(Equal("B"))
hash := solution.AssertionHash()
solution, err = s.Install([]*types.Package{B})
Expect(solution).To(ContainElement(types.PackageAssert{Package: B, Value: true}))
Expect(solution).To(ContainElement(types.PackageAssert{Package: D, Value: true}))
Expect(solution).To(ContainElement(types.PackageAssert{Package: C, Value: true}))
Expect(solution).To(ContainElement(types.PackageAssert{Package: H, Value: true}))
Expect(solution).To(ContainElement(types.PackageAssert{Package: G, Value: true}))
Expect(len(solution)).To(Equal(6))
Expect(err).ToNot(HaveOccurred())
solution, err = solution.Order(dbDefinitions, B.GetFingerPrint())
Expect(err).ToNot(HaveOccurred())
hash2 := solution.AssertionHash()
// Expect(len(solution)).To(Equal(6))
Expect(solution[0].Package.GetName()).To(Equal("G"))
Expect(solution[1].Package.GetName()).To(Equal("H"))
Expect(solution[2].Package.GetName()).To(Equal("D"))
Expect(solution[3].Package.GetName()).To(Equal("B"))
Expect(hash).ToNot(Equal(""))
Expect(hash2).ToNot(Equal(""))
Expect(hash != hash2).To(BeTrue())
})
It("Hashes them, and could be used for comparison", func() {
X := types.NewPackage("X", "", []*types.Package{}, []*types.Package{})
Y := types.NewPackage("Y", "", []*types.Package{X}, []*types.Package{})
Z := types.NewPackage("Z", "", []*types.Package{X}, []*types.Package{})
for _, p := range []*types.Package{X, Y, Z} {
_, err := dbDefinitions.CreatePackage(p)
Expect(err).ToNot(HaveOccurred())
}
for _, p := range []*types.Package{} {
_, err := dbInstalled.CreatePackage(p)
Expect(err).ToNot(HaveOccurred())
}
solution, err := s.Install([]*types.Package{Y})
Expect(err).ToNot(HaveOccurred())
solution2, err := s.Install([]*types.Package{Z})
Expect(err).ToNot(HaveOccurred())
orderY, err := solution.Order(dbDefinitions, Y.GetFingerPrint())
Expect(err).ToNot(HaveOccurred())
orderZ, err := solution2.Order(dbDefinitions, Z.GetFingerPrint())
Expect(err).ToNot(HaveOccurred())
Expect(orderY.Drop(Y).AssertionHash() == orderZ.Drop(Z).AssertionHash()).To(BeTrue())
})
It("Hashes them, Cuts them and could be used for comparison", func() {
X := types.NewPackage("X", "", []*types.Package{}, []*types.Package{})
Y := types.NewPackage("Y", "", []*types.Package{X}, []*types.Package{})
Z := types.NewPackage("Z", "", []*types.Package{X}, []*types.Package{})
for _, p := range []*types.Package{X, Y, Z} {
_, err := dbDefinitions.CreatePackage(p)
Expect(err).ToNot(HaveOccurred())
}
for _, p := range []*types.Package{} {
_, err := dbInstalled.CreatePackage(p)
Expect(err).ToNot(HaveOccurred())
}
solution, err := s.Install([]*types.Package{Y})
Expect(err).ToNot(HaveOccurred())
solution2, err := s.Install([]*types.Package{Z})
Expect(err).ToNot(HaveOccurred())
orderY, err := solution.Order(dbDefinitions, Y.GetFingerPrint())
Expect(err).ToNot(HaveOccurred())
orderZ, err := solution2.Order(dbDefinitions, Z.GetFingerPrint())
Expect(err).ToNot(HaveOccurred())
Expect(orderY.Cut(Y).Drop(Y)).To(Equal(orderZ.Cut(Z).Drop(Z)))
Expect(orderY.Cut(Y).Drop(Y).AssertionHash()).To(Equal(orderZ.Cut(Z).Drop(Z).AssertionHash()))
})
It("HashFrom can be used equally", func() {
X := types.NewPackage("X", "", []*types.Package{}, []*types.Package{})
Y := types.NewPackage("Y", "", []*types.Package{X}, []*types.Package{})
Z := types.NewPackage("Z", "", []*types.Package{X}, []*types.Package{})
for _, p := range []*types.Package{X, Y, Z} {
_, err := dbDefinitions.CreatePackage(p)
Expect(err).ToNot(HaveOccurred())
}
for _, p := range []*types.Package{} {
_, err := dbInstalled.CreatePackage(p)
Expect(err).ToNot(HaveOccurred())
}
solution, err := s.Install([]*types.Package{Y})
Expect(err).ToNot(HaveOccurred())
solution2, err := s.Install([]*types.Package{Z})
Expect(err).ToNot(HaveOccurred())
orderY, err := solution.Order(dbDefinitions, Y.GetFingerPrint())
Expect(err).ToNot(HaveOccurred())
orderZ, err := solution2.Order(dbDefinitions, Z.GetFingerPrint())
Expect(err).ToNot(HaveOccurred())
Expect(orderY.Cut(Y).Drop(Y)).To(Equal(orderZ.Cut(Z).Drop(Z)))
Expect(orderY.Cut(Y).HashFrom(Y)).To(Equal(orderZ.Cut(Z).HashFrom(Z)))
})
It("Unique hashes for single packages", func() {
X := types.NewPackage("X", "", []*types.Package{}, []*types.Package{})
F := types.NewPackage("F", "", []*types.Package{}, []*types.Package{})
D := types.NewPackage("X", "", []*types.Package{}, []*types.Package{})
for _, p := range []*types.Package{X, F, D} {
_, err := dbDefinitions.CreatePackage(p)
Expect(err).ToNot(HaveOccurred())
}
for _, p := range []*types.Package{} {
_, err := dbInstalled.CreatePackage(p)
Expect(err).ToNot(HaveOccurred())
}
solution, err := s.Install([]*types.Package{X})
Expect(err).ToNot(HaveOccurred())
solution2, err := s.Install([]*types.Package{F})
Expect(err).ToNot(HaveOccurred())
solution3, err := s.Install([]*types.Package{D})
Expect(err).ToNot(HaveOccurred())
Expect(solution.AssertionHash()).ToNot(Equal(solution2.AssertionHash()))
Expect(solution3.AssertionHash()).To(Equal(solution.AssertionHash()))
})
It("Unique hashes for empty assertions", func() {
empty := types.PackagesAssertions{}
empty2 := types.PackagesAssertions{}
Expect(empty.AssertionHash()).To(Equal(empty2.AssertionHash()))
})
It("Unique hashes for single packages with HashFrom", func() {
X := types.NewPackage("X", "", []*types.Package{}, []*types.Package{})
F := types.NewPackage("F", "", []*types.Package{}, []*types.Package{})
D := types.NewPackage("X", "", []*types.Package{}, []*types.Package{})
Y := types.NewPackage("Y", "", []*types.Package{X}, []*types.Package{})
empty := types.PackagesAssertions{}
for _, p := range []*types.Package{X, F, D, Y} {
_, err := dbDefinitions.CreatePackage(p)
Expect(err).ToNot(HaveOccurred())
}
for _, p := range []*types.Package{} {
_, err := dbInstalled.CreatePackage(p)
Expect(err).ToNot(HaveOccurred())
}
solution, err := s.Install([]*types.Package{X})
Expect(err).ToNot(HaveOccurred())
solution2, err := s.Install([]*types.Package{F})
Expect(err).ToNot(HaveOccurred())
solution3, err := s.Install([]*types.Package{D})
Expect(err).ToNot(HaveOccurred())
solution4, err := s.Install([]*types.Package{Y})
Expect(err).ToNot(HaveOccurred())
Expect(solution.HashFrom(X)).ToNot(Equal(solution2.HashFrom(F)))
Expect(solution3.HashFrom(D)).To(Equal(solution.HashFrom(X)))
Expect(solution3.SaltedHashFrom(D, map[string]string{D.GetFingerPrint(): "foo"})).ToNot(Equal(solution3.HashFrom(D)))
Expect(solution4.SaltedHashFrom(Y, map[string]string{X.GetFingerPrint(): "foo"})).ToNot(Equal(solution4.HashFrom(Y)))
Expect(empty.AssertionHash()).ToNot(Equal(solution3.HashFrom(D)))
Expect(empty.AssertionHash()).ToNot(Equal(solution2.HashFrom(F)))
Expect(solution4.Drop(Y).AssertionHash()).To(Equal(solution4.HashFrom(Y)))
})
for index := 0; index < 300; index++ { // Just to make sure we don't have false positives
It("Always same solution", func() {
X := types.NewPackage("X", "", []*types.Package{}, []*types.Package{})
Y := types.NewPackage("Y", "", []*types.Package{X}, []*types.Package{})
Z := types.NewPackage("Z", "", []*types.Package{X}, []*types.Package{})
W := types.NewPackage("W", "", []*types.Package{Z, Y}, []*types.Package{})
for _, p := range []*types.Package{X, Y, Z} {
_, err := dbDefinitions.CreatePackage(p)
Expect(err).ToNot(HaveOccurred())
}
for _, p := range []*types.Package{} {
_, err := dbInstalled.CreatePackage(p)
Expect(err).ToNot(HaveOccurred())
}
solution, err := s.Install([]*types.Package{W})
Expect(err).ToNot(HaveOccurred())
orderW, err := solution.Order(dbDefinitions, W.GetFingerPrint())
Expect(err).ToNot(HaveOccurred())
Expect(len(orderW) > 0).To(BeTrue())
Expect(orderW[0].Package.GetName()).To(Equal("X"))
Expect(orderW[1].Package.GetName()).To(Equal("Y"))
Expect(orderW[2].Package.GetName()).To(Equal("Z"))
Expect(orderW[3].Package.GetName()).To(Equal("W"))
})
}
})
})