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Give explaination when formulas are unsat

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Fixes #168

Signed-off-by: Ettore Di Giacinto <mudler@sabayon.org>
This commit is contained in:
Ettore Di Giacinto
2021-08-07 11:11:42 +02:00
parent ec7be63418
commit 4d6cccb2fa
7 changed files with 122 additions and 14 deletions
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9
pkg/solver/resolver_test.go
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@@ -38,7 +38,7 @@ var _ = Describe("Resolver", func() {
})
Context("Conflict set", func() {
Context("DummyPackageResolver", func() {
Context("Explainer", func() {
It("is unsolvable - as we something we ask to install conflict with system stuff", func() {
C := pkg.NewPackage("C", "", []*pkg.DefaultPackage{}, []*pkg.DefaultPackage{})
B := pkg.NewPackage("B", "", []*pkg.DefaultPackage{}, []*pkg.DefaultPackage{C})
@@ -152,7 +152,7 @@ var _ = Describe("Resolver", func() {
})
})
Context("DummyPackageResolver", func() {
Context("Explainer", func() {
It("cannot find a solution", func() {
C := pkg.NewPackage("C", "", []*pkg.DefaultPackage{}, []*pkg.DefaultPackage{})
B := pkg.NewPackage("B", "", []*pkg.DefaultPackage{}, []*pkg.DefaultPackage{C})
@@ -171,6 +171,11 @@ var _ = Describe("Resolver", func() {
solution, err := s.Install([]pkg.Package{A, D})
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(Equal(`could not satisfy the constraints:
A-- and
C-- and
!(A--) or B-- and
!(B--) or !(C--)`))
Expect(len(solution)).To(Equal(0))
})