зеркало из https://github.com/github/ruby.git
859 строки
20 KiB
Ruby
859 строки
20 KiB
Ruby
# frozen_string_literal: true
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require_relative "helper"
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class TestGemResolver < Gem::TestCase
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def setup
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super
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@DR = Gem::Resolver
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end
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def make_dep(name, *req)
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Gem::Dependency.new(name, *req)
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end
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def set(*specs)
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source = Gem::Source.new URI @gem_repo
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specs = specs.map do |spec|
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Gem::Resolver::SpecSpecification.new nil, spec, source
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end
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StaticSet.new(specs)
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end
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def assert_resolves_to(expected, resolver)
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actual = resolver.resolve
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exp = expected.sort_by {|s| s.full_name }
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act = actual.map {|a| a.spec.spec }.sort_by {|s| s.full_name }
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msg = "Set of gems was not the same: #{exp.map {|x| x.full_name }.inspect} != #{act.map {|x| x.full_name }.inspect}"
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assert_equal exp, act, msg
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rescue Gem::DependencyResolutionError => e
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flunk e.message
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end
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def test_self_compose_sets_best_set
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best_set = @DR::BestSet.new
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composed = @DR.compose_sets best_set
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assert_equal best_set, composed
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end
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def test_self_compose_sets_multiple
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index_set = @DR::IndexSet.new
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vendor_set = @DR::VendorSet.new
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composed = @DR.compose_sets index_set, vendor_set
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assert_kind_of Gem::Resolver::ComposedSet, composed
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assert_equal [index_set, vendor_set], composed.sets
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end
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def test_self_compose_sets_nest
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index_set = @DR::IndexSet.new
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vendor_set = @DR::VendorSet.new
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inner = @DR.compose_sets index_set, vendor_set
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current_set = @DR::CurrentSet.new
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composed = @DR.compose_sets inner, current_set
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assert_kind_of Gem::Resolver::ComposedSet, composed
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assert_equal [index_set, vendor_set, current_set], composed.sets
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end
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def test_self_compose_sets_nil
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index_set = @DR::IndexSet.new
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composed = @DR.compose_sets index_set, nil
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assert_same index_set, composed
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e = assert_raise ArgumentError do
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@DR.compose_sets nil
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end
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assert_equal "one set in the composition must be non-nil", e.message
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end
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def test_self_compose_sets_single
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index_set = @DR::IndexSet.new
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composed = @DR.compose_sets index_set
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assert_same index_set, composed
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end
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def test_requests
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a1 = util_spec "a", 1, "b" => 2
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r1 = Gem::Resolver::DependencyRequest.new dep("a", "= 1"), nil
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act = Gem::Resolver::ActivationRequest.new a1, r1
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res = Gem::Resolver.new [a1]
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reqs = []
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res.requests a1, act, reqs
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assert_equal ["b (= 2)"], reqs.map {|req| req.to_s }
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end
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def test_requests_development
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a1 = util_spec "a", 1, "b" => 2
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spec = Gem::Resolver::SpecSpecification.new nil, a1
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def spec.fetch_development_dependencies
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@called = true
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end
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r1 = Gem::Resolver::DependencyRequest.new dep("a", "= 1"), nil
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act = Gem::Resolver::ActivationRequest.new spec, r1
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res = Gem::Resolver.new [act]
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res.development = true
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reqs = []
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res.requests spec, act, reqs
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assert_equal ["b (= 2)"], reqs.map {|req| req.to_s }
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assert spec.instance_variable_defined? :@called
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end
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def test_requests_ignore_dependencies
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a1 = util_spec "a", 1, "b" => 2
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r1 = Gem::Resolver::DependencyRequest.new dep("a", "= 1"), nil
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act = Gem::Resolver::ActivationRequest.new a1, r1
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res = Gem::Resolver.new [a1]
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res.ignore_dependencies = true
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reqs = []
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res.requests a1, act, reqs
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assert_empty reqs
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end
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def test_resolve_conservative
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a1_spec = util_spec "a", 1
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a2_spec = util_spec "a", 2 do |s|
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s.add_dependency "b", 2
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s.add_dependency "c"
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end
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b1_spec = util_spec "b", 1
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b2_spec = util_spec "b", 2
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c1_spec = util_spec "c", 1 do |s|
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s.add_dependency "d", 2
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end
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c2_spec = util_spec "c", 2 do |s|
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s.add_dependency "d", 2
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end
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d1_spec = util_spec "d", 1 do |s|
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s.add_dependency "e"
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end
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d2_spec = util_spec "d", 2 do |s|
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s.add_dependency "e"
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end
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e1_spec = util_spec "e", 1
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e2_spec = util_spec "e", 2
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a_dep = make_dep "a", "= 2"
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e_dep = make_dep "e"
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# When requesting to install:
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# a-2, e
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deps = [a_dep, e_dep]
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s = set a1_spec, a2_spec, b1_spec, b2_spec, c1_spec, c2_spec, d1_spec, d2_spec, e1_spec, e2_spec
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res = Gem::Resolver.new deps, s
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# With the following gems already installed:
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# a-1, b-1, c-1, e-1
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res.skip_gems = { "a" => [a1_spec], "b" => [b1_spec], "c" => [c1_spec], "e" => [e1_spec] }
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# Make sure the following gems end up getting used/installed/upgraded:
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# a-2 (upgraded)
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# b-2 (upgraded), specific dependency from a-2
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# c-1 (used, not upgraded), open dependency from a-2
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# d-2 (installed), specific dependency from c-2
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# e-1 (used, not upgraded), open dependency from request
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assert_resolves_to [a2_spec, b2_spec, c1_spec, d2_spec, e1_spec], res
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end
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def test_resolve_development
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a_spec = util_spec "a", 1 do |s|
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s.add_development_dependency "b"
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end
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b_spec = util_spec "b", 1 do
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|s| s.add_development_dependency "c"
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end
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c_spec = util_spec "c", 1
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a_dep = make_dep "a", "= 1"
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deps = [a_dep]
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s = set a_spec, b_spec, c_spec
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res = Gem::Resolver.new deps, s
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res.development = true
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assert_resolves_to [a_spec, b_spec, c_spec], res
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end
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def test_resolve_development_shallow
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a_spec = util_spec "a", 1 do |s|
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s.add_development_dependency "b"
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s.add_runtime_dependency "d"
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end
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b_spec = util_spec "b", 1 do |s|
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s.add_development_dependency "c"
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end
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c_spec = util_spec "c", 1
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d_spec = util_spec "d", 1 do |s|
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s.add_development_dependency "e"
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end
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e_spec = util_spec "e", 1
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a_dep = make_dep "a", "= 1"
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deps = [a_dep]
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s = set a_spec, b_spec, c_spec, d_spec, e_spec
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res = Gem::Resolver.new deps, s
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res.development = true
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res.development_shallow = true
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assert_resolves_to [a_spec, b_spec, d_spec], res
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end
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def test_resolve_remote_missing_dependency
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@fetcher = Gem::FakeFetcher.new
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Gem::RemoteFetcher.fetcher = @fetcher
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a_dep = make_dep "a", "= 1"
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res = Gem::Resolver.new [a_dep], Gem::Resolver::IndexSet.new
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e = assert_raise Gem::UnsatisfiableDependencyError do
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res.resolve
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end
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refute_empty e.errors
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end
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def test_no_overlap_specifically
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a = util_spec "a", "1"
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b = util_spec "b", "1"
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ad = make_dep "a", "= 1"
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bd = make_dep "b", "= 1"
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deps = [ad, bd]
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s = set(a, b)
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res = Gem::Resolver.new(deps, s)
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assert_resolves_to [a, b], res
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end
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def test_pulls_in_dependencies
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a = util_spec "a", "1"
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b = util_spec "b", "1", "c" => "= 1"
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c = util_spec "c", "1"
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ad = make_dep "a", "= 1"
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bd = make_dep "b", "= 1"
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deps = [ad, bd]
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s = set(a, b, c)
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res = Gem::Resolver.new(deps, s)
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assert_resolves_to [a, b, c], res
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end
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def test_picks_highest_version
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a1 = util_spec "a", "1"
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a2 = util_spec "a", "2"
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s = set(a1, a2)
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ad = make_dep "a"
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res = Gem::Resolver.new([ad], s)
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assert_resolves_to [a2], res
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end
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def test_picks_best_platform
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is = Gem::Resolver::IndexSpecification
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unknown = Gem::Platform.new "unknown"
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spec_fetcher do |fetcher|
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fetcher.spec "a", 2
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fetcher.spec "a", 2 do |s|
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s.platform = Gem::Platform.local
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end
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fetcher.spec "a", 3 do |s|
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s.platform = unknown
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end
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end
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v2 = v(2)
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v3 = v(3)
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source = Gem::Source.new @gem_repo
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s = set
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a2 = is.new s, "a", v2, source, Gem::Platform::RUBY
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a2_p1 = is.new s, "a", v2, source, Gem::Platform.local.to_s
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a3_p2 = is.new s, "a", v3, source, unknown
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s.add a3_p2
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s.add a2_p1
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s.add a2
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ad = make_dep "a"
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res = Gem::Resolver.new([ad], s)
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assert_resolves_to [a2_p1.spec], res
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end
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def test_does_not_pick_musl_variants_on_non_musl_linux
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util_set_arch "aarch64-linux" do
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is = Gem::Resolver::IndexSpecification
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linux_musl = Gem::Platform.new("aarch64-linux-musl")
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spec_fetcher do |fetcher|
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fetcher.spec "libv8-node", "15.14.0.1" do |s|
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s.platform = Gem::Platform.local
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end
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fetcher.spec "libv8-node", "15.14.0.1" do |s|
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s.platform = linux_musl
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end
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end
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v15 = v("15.14.0.1")
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source = Gem::Source.new @gem_repo
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s = set
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v15_linux = is.new s, "libv8-node", v15, source, Gem::Platform.local.to_s
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v15_linux_musl = is.new s, "libv8-node", v15, source, linux_musl.to_s
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s.add v15_linux
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s.add v15_linux_musl
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ad = make_dep "libv8-node", "= 15.14.0.1"
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res = Gem::Resolver.new([ad], s)
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assert_resolves_to [v15_linux.spec], res
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end
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end
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def test_pick_generic_linux_variants_on_musl_linux
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util_set_arch "aarch64-linux-musl" do
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is = Gem::Resolver::IndexSpecification
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linux = Gem::Platform.new("aarch64-linux")
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spec_fetcher do |fetcher|
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fetcher.spec "libv8-node", "15.14.0.1" do |s|
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s.platform = linux
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end
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fetcher.spec "libv8-node", "15.14.0.1"
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end
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v15 = v("15.14.0.1")
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source = Gem::Source.new @gem_repo
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s = set
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v15_ruby = is.new s, "libv8-node", v15, source, Gem::Platform::RUBY
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v15_linux = is.new s, "libv8-node", v15, source, linux.to_s
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s.add v15_linux
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s.add v15_ruby
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ad = make_dep "libv8-node", "= 15.14.0.1"
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res = Gem::Resolver.new([ad], s)
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assert_resolves_to [v15_linux.spec], res
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end
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end
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def test_only_returns_spec_once
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a1 = util_spec "a", "1", "c" => "= 1"
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b1 = util_spec "b", "1", "c" => "= 1"
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c1 = util_spec "c", "1"
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ad = make_dep "a"
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bd = make_dep "b"
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s = set(a1, b1, c1)
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res = Gem::Resolver.new([ad, bd], s)
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assert_resolves_to [a1, b1, c1], res
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end
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def test_picks_lower_version_when_needed
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a1 = util_spec "a", "1", "c" => ">= 1"
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b1 = util_spec "b", "1", "c" => "= 1"
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c1 = util_spec "c", "1"
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c2 = util_spec "c", "2"
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ad = make_dep "a"
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bd = make_dep "b"
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s = set(a1, b1, c1, c2)
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res = Gem::Resolver.new([ad, bd], s)
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assert_resolves_to [a1, b1, c1], res
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end
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def test_conflict_resolution_only_effects_correct_spec
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a1 = util_spec "a", "1", "c" => ">= 1"
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b1 = util_spec "b", "1", "d" => ">= 1"
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d3 = util_spec "d", "3", "c" => "= 1"
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d4 = util_spec "d", "4", "c" => "= 1"
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c1 = util_spec "c", "1"
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c2 = util_spec "c", "2"
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ad = make_dep "a"
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bd = make_dep "b"
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s = set(a1, b1, d3, d4, c1, c2)
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res = Gem::Resolver.new([ad, bd], s)
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assert_resolves_to [a1, b1, c1, d4], res
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end
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def test_backoff_higher_version_to_satisfy_dep
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t3 = util_spec "railties", "3.2"
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t4 = util_spec "railties", "4.0"
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r3 = util_spec "rails", "3.2", "railties" => "= 3.2"
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r4 = util_spec "rails", "4.0", "railties" => "= 4.0"
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rd = make_dep "rails", "3.2"
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c3 = util_spec "coffee", "3.0", "railties" => "~> 3.0"
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c4 = util_spec "coffee", "4.0", "railties" => "~> 4.0"
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cd = make_dep "coffee"
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s = set(t3, t4, r3, r4, c3, c4)
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res = Gem::Resolver.new([rd, cd], s)
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assert_resolves_to [r3, t3, c3], res
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end
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def test_raises_dependency_error
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a1 = util_spec "a", "1", "c" => "= 1"
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b1 = util_spec "b", "1", "c" => "= 2"
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c1 = util_spec "c", "1"
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c2 = util_spec "c", "2"
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ad = make_dep "a"
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bd = make_dep "b"
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s = set(a1, b1, c1, c2)
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r = Gem::Resolver.new([ad, bd], s)
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e = assert_raise Gem::DependencyResolutionError do
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r.resolve
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end
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deps = [make_dep("c", "= 2"), make_dep("c", "= 1")]
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assert_equal deps, e.conflicting_dependencies
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con = e.conflict
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act = con.activated
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assert_equal "c-1", act.spec.full_name
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parent = act.parent
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assert_equal "a-1", parent.spec.full_name
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act = con.requester
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assert_equal "b-1", act.spec.full_name
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end
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def test_raises_when_a_gem_is_missing
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ad = make_dep "a"
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r = Gem::Resolver.new([ad], set)
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e = assert_raise Gem::UnsatisfiableDependencyError do
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r.resolve
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end
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assert_equal "Unable to resolve dependency: user requested 'a (>= 0)'",
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e.message
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assert_equal "a (>= 0)", e.dependency.to_s
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end
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def test_raises_when_a_gem_version_is_missing
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a1 = util_spec "a", "1"
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ad = make_dep "a", "= 3"
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r = Gem::Resolver.new([ad], set(a1))
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|
e = assert_raise Gem::UnsatisfiableDependencyError do
|
|
r.resolve
|
|
end
|
|
|
|
assert_equal "a (= 3)", e.dependency.to_s
|
|
end
|
|
|
|
def test_raises_and_reports_a_toplevel_request_properly
|
|
a1 = util_spec "a", "1"
|
|
ad = make_dep "a", "= 3"
|
|
|
|
r = Gem::Resolver.new([ad], set(a1))
|
|
|
|
e = assert_raise Gem::UnsatisfiableDependencyError do
|
|
r.resolve
|
|
end
|
|
|
|
assert_equal "Unable to resolve dependency: user requested 'a (= 3)'",
|
|
e.message
|
|
end
|
|
|
|
def test_raises_and_reports_an_implicit_request_properly
|
|
a1 = util_spec "a", "1" do |s|
|
|
s.add_runtime_dependency "b", "= 2"
|
|
end
|
|
|
|
ad = make_dep "a", "= 1"
|
|
|
|
r = Gem::Resolver.new([ad], set(a1))
|
|
|
|
e = assert_raise Gem::UnsatisfiableDependencyError do
|
|
r.resolve
|
|
end
|
|
|
|
assert_equal "Unable to resolve dependency: 'a (= 1)' requires 'b (= 2)'",
|
|
e.message
|
|
end
|
|
|
|
def test_raises_when_possibles_are_exhausted
|
|
a1 = util_spec "a", "1", "c" => ">= 2"
|
|
b1 = util_spec "b", "1", "c" => "= 1"
|
|
|
|
c1 = util_spec "c", "1"
|
|
c2 = util_spec "c", "2"
|
|
c3 = util_spec "c", "3"
|
|
|
|
s = set(a1, b1, c1, c2, c3)
|
|
|
|
ad = make_dep "a"
|
|
bd = make_dep "b"
|
|
|
|
r = Gem::Resolver.new([ad, bd], s)
|
|
|
|
e = assert_raise Gem::DependencyResolutionError do
|
|
r.resolve
|
|
end
|
|
|
|
dependency = e.conflict.dependency
|
|
|
|
assert_includes %w[a b], dependency.name
|
|
assert_equal req(">= 0"), dependency.requirement
|
|
|
|
activated = e.conflict.activated
|
|
assert_equal "c-1", activated.full_name
|
|
|
|
assert_equal dep("c", "= 1"), activated.request.dependency
|
|
|
|
assert_equal [dep("c", ">= 2"), dep("c", "= 1")],
|
|
e.conflict.conflicting_dependencies
|
|
end
|
|
|
|
def test_keeps_resolving_after_seeing_satisfied_dep
|
|
a1 = util_spec "a", "1", "b" => "= 1", "c" => "= 1"
|
|
b1 = util_spec "b", "1"
|
|
c1 = util_spec "c", "1"
|
|
|
|
ad = make_dep "a"
|
|
bd = make_dep "b"
|
|
|
|
s = set(a1, b1, c1)
|
|
|
|
r = Gem::Resolver.new([ad, bd], s)
|
|
|
|
assert_resolves_to [a1, b1, c1], r
|
|
end
|
|
|
|
def test_common_rack_activation_scenario
|
|
rack100 = util_spec "rack", "1.0.0"
|
|
rack101 = util_spec "rack", "1.0.1"
|
|
|
|
lib1 = util_spec "lib", "1", "rack" => ">= 1.0.1"
|
|
|
|
rails = util_spec "rails", "3", "actionpack" => "= 3"
|
|
ap = util_spec "actionpack", "3", "rack" => ">= 1.0.0"
|
|
|
|
d1 = make_dep "rails"
|
|
d2 = make_dep "lib"
|
|
|
|
s = set(lib1, rails, ap, rack100, rack101)
|
|
|
|
r = Gem::Resolver.new([d1, d2], s)
|
|
|
|
assert_resolves_to [rails, ap, rack101, lib1], r
|
|
|
|
# check it with the deps reverse too
|
|
|
|
r = Gem::Resolver.new([d2, d1], s)
|
|
|
|
assert_resolves_to [lib1, rack101, rails, ap], r
|
|
end
|
|
|
|
def test_backtracks_to_the_first_conflict
|
|
a1 = util_spec "a", "1"
|
|
a2 = util_spec "a", "2"
|
|
a3 = util_spec "a", "3"
|
|
a4 = util_spec "a", "4"
|
|
|
|
d1 = make_dep "a"
|
|
d2 = make_dep "a", ">= 2"
|
|
d3 = make_dep "a", "= 1"
|
|
|
|
s = set(a1, a2, a3, a4)
|
|
|
|
r = Gem::Resolver.new([d1, d2, d3], s)
|
|
|
|
assert_raise Gem::DependencyResolutionError do
|
|
r.resolve
|
|
end
|
|
end
|
|
|
|
def test_resolve_conflict
|
|
a1 = util_spec "a", 1
|
|
a2 = util_spec "a", 2
|
|
|
|
b2 = util_spec "b", 2, "a" => "~> 2.0"
|
|
|
|
s = set a1, a2, b2
|
|
|
|
a_dep = dep "a", "~> 1.0"
|
|
b_dep = dep "b"
|
|
|
|
r = Gem::Resolver.new [a_dep, b_dep], s
|
|
|
|
assert_raise Gem::DependencyResolutionError do
|
|
r.resolve
|
|
end
|
|
end
|
|
|
|
def test_resolve_bug_699
|
|
a1 = util_spec "a", "1", "b" => "= 2",
|
|
"c" => "~> 1.0.3"
|
|
|
|
b1 = util_spec "b", "2", "c" => "~> 1.0"
|
|
|
|
c1 = util_spec "c", "1.0.9"
|
|
c2 = util_spec "c", "1.1.0"
|
|
c3 = util_spec "c", "1.2.0"
|
|
|
|
s = set a1, b1, c1, c2, c3
|
|
|
|
a_dep = dep "a", "= 1"
|
|
|
|
r = Gem::Resolver.new [a_dep], s
|
|
|
|
assert_resolves_to [a1, b1, c1], r
|
|
end
|
|
|
|
def test_resolve_rollback
|
|
a1 = util_spec "a", 1
|
|
a2 = util_spec "a", 2
|
|
|
|
b1 = util_spec "b", 1, "a" => "~> 1.0"
|
|
b2 = util_spec "b", 2, "a" => "~> 2.0"
|
|
|
|
s = set a1, a2, b1, b2
|
|
|
|
a_dep = dep "a", "~> 1.0"
|
|
b_dep = dep "b"
|
|
|
|
r = Gem::Resolver.new [a_dep, b_dep], s
|
|
|
|
assert_resolves_to [a1, b1], r
|
|
end
|
|
|
|
# actionmailer 2.3.4
|
|
# activemerchant 1.5.0
|
|
# activesupport 2.3.5, 2.3.4
|
|
# Activemerchant needs activesupport >= 2.3.2. When you require activemerchant, it will activate the latest version that meets that requirement which is 2.3.5. Actionmailer on the other hand needs activesupport = 2.3.4. When rubygems tries to activate activesupport 2.3.4, it will raise an error.
|
|
|
|
def test_simple_activesupport_problem
|
|
sup1 = util_spec "activesupport", "2.3.4"
|
|
sup2 = util_spec "activesupport", "2.3.5"
|
|
|
|
merch = util_spec "activemerchant", "1.5.0", "activesupport" => ">= 2.3.2"
|
|
mail = util_spec "actionmailer", "2.3.4", "activesupport" => "= 2.3.4"
|
|
|
|
s = set(mail, merch, sup1, sup2)
|
|
|
|
d1 = make_dep "activemerchant"
|
|
d2 = make_dep "actionmailer"
|
|
|
|
r = Gem::Resolver.new([d1, d2], s)
|
|
|
|
assert_resolves_to [merch, mail, sup1], r
|
|
end
|
|
|
|
def test_second_level_backout
|
|
b1 = util_spec "b", "1", { "c" => ">= 1" }, "lib/b.rb"
|
|
b2 = util_spec "b", "2", { "c" => ">= 2" }, "lib/b.rb"
|
|
c1 = util_spec "c", "1"
|
|
c2 = util_spec "c", "2"
|
|
d1 = util_spec "d", "1", { "c" => "< 2" }, "lib/d.rb"
|
|
d2 = util_spec "d", "2", { "c" => "< 2" }, "lib/d.rb"
|
|
|
|
s = set(b1, b2, c1, c2, d1, d2)
|
|
|
|
p1 = make_dep "b", "> 0"
|
|
p2 = make_dep "d", "> 0"
|
|
|
|
r = Gem::Resolver.new([p1, p2], s)
|
|
|
|
assert_resolves_to [b1, c1, d2], r
|
|
end
|
|
|
|
def test_sorts_by_source_then_version
|
|
sourceA = Gem::Source.new "http://example.com/a"
|
|
sourceB = Gem::Source.new "http://example.com/b"
|
|
sourceC = Gem::Source.new "http://example.com/c"
|
|
|
|
spec_A_1 = util_spec "some-dep", "0.0.1"
|
|
spec_A_2 = util_spec "some-dep", "1.0.0"
|
|
spec_B_1 = util_spec "some-dep", "0.0.1"
|
|
spec_B_2 = util_spec "some-dep", "0.0.2"
|
|
spec_C_1 = util_spec "some-dep", "0.1.0"
|
|
|
|
set = StaticSet.new [
|
|
Gem::Resolver::SpecSpecification.new(nil, spec_B_1, sourceB),
|
|
Gem::Resolver::SpecSpecification.new(nil, spec_B_2, sourceB),
|
|
Gem::Resolver::SpecSpecification.new(nil, spec_C_1, sourceC),
|
|
Gem::Resolver::SpecSpecification.new(nil, spec_A_2, sourceA),
|
|
Gem::Resolver::SpecSpecification.new(nil, spec_A_1, sourceA),
|
|
]
|
|
|
|
dependency = make_dep "some-dep", "> 0"
|
|
|
|
resolver = Gem::Resolver.new [dependency], set
|
|
|
|
assert_resolves_to [spec_B_2], resolver
|
|
end
|
|
|
|
def test_select_local_platforms
|
|
r = Gem::Resolver.new nil, nil
|
|
|
|
a1 = util_spec "a", 1
|
|
|
|
a1_p1 = util_spec "a", 1 do |s|
|
|
s.platform = Gem::Platform.local
|
|
end
|
|
|
|
a1_p2 = util_spec "a", 1 do |s|
|
|
s.platform = "unknown"
|
|
end
|
|
|
|
selected = r.select_local_platforms [a1, a1_p1, a1_p2]
|
|
|
|
assert_equal [a1, a1_p1], selected
|
|
end
|
|
|
|
def test_search_for_local_platform_partial_string_match
|
|
a1 = util_spec "a", 1
|
|
|
|
a1_p1 = util_spec "a", 1 do |s|
|
|
s.platform = Gem::Platform.local.os
|
|
end
|
|
|
|
a1_p2 = util_spec "a", 1 do |s|
|
|
s.platform = "unknown"
|
|
end
|
|
|
|
s = set(a1_p1, a1_p2, a1)
|
|
d = [make_dep("a")]
|
|
r = Gem::Resolver.new(d, s)
|
|
|
|
assert_resolves_to [a1_p1], r
|
|
end
|
|
|
|
def test_raises_and_explains_when_platform_prevents_install
|
|
a1 = util_spec "a", "1" do |s|
|
|
s.platform = Gem::Platform.new %w[c p 1]
|
|
end
|
|
|
|
ad = make_dep "a", "= 1"
|
|
|
|
r = Gem::Resolver.new([ad], set(a1))
|
|
|
|
e = assert_raise Gem::UnsatisfiableDependencyError do
|
|
r.resolve
|
|
end
|
|
|
|
assert_match "No match for 'a (= 1)' on this platform. Found: c-p-1",
|
|
e.message
|
|
end
|
|
end
|