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ruby--ruby/test/rubygems/test_gem_dependency_resolver.rb
drbrain 9694bb8cac * lib/rubygems*: Updated to RubyGems 2.0
* test/rubygems*:  ditto.

* common.mk (prelude):  Updated for RubyGems 2.0 source rearrangement.

* tool/change_maker.rb:  Allow invalid UTF-8 characters in source
  files.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37976 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-11-29 06:52:18 +00:00

327 lines
7.5 KiB
Ruby

require 'rubygems/test_case'
require 'rubygems/dependency_resolver'
class TestGemDependencyResolver < Gem::TestCase
def make_dep(name, *req)
Gem::Dependency.new(name, *req)
end
def set(*specs)
StaticSet.new(specs)
end
def assert_set(expected, actual)
exp = expected.sort_by { |s| s.full_name }
act = actual.map { |a| a.spec }.sort_by { |s| s.full_name }
assert_equal exp, act
end
def test_no_overlap_specificly
a = util_spec "a", '1'
b = util_spec "b", "1"
ad = make_dep "a", "= 1"
bd = make_dep "b", "= 1"
deps = [ad, bd]
s = set(a, b)
res = Gem::DependencyResolver.new(deps, s)
assert_set [a, b], res.resolve
end
def test_pulls_in_dependencies
a = util_spec "a", '1'
b = util_spec "b", "1", "c" => "= 1"
c = util_spec "c", "1"
ad = make_dep "a", "= 1"
bd = make_dep "b", "= 1"
deps = [ad, bd]
s = set(a, b, c)
res = Gem::DependencyResolver.new(deps, s)
assert_set [a, b, c], res.resolve
end
def test_picks_highest_version
a1 = util_spec "a", '1'
a2 = util_spec "a", '2'
s = set(a1, a2)
ad = make_dep "a"
res = Gem::DependencyResolver.new([ad], s)
assert_set [a2], res.resolve
end
def test_only_returns_spec_once
a1 = util_spec "a", "1", "c" => "= 1"
b1 = util_spec "b", "1", "c" => "= 1"
c1 = util_spec "c", "1"
ad = make_dep "a"
bd = make_dep "b"
s = set(a1, b1, c1)
res = Gem::DependencyResolver.new([ad, bd], s)
assert_set [a1, b1, c1], res.resolve
end
def test_picks_lower_version_when_needed
a1 = util_spec "a", "1", "c" => ">= 1"
b1 = util_spec "b", "1", "c" => "= 1"
c1 = util_spec "c", "1"
c2 = util_spec "c", "2"
ad = make_dep "a"
bd = make_dep "b"
s = set(a1, b1, c1, c2)
res = Gem::DependencyResolver.new([ad, bd], s)
assert_set [a1, b1, c1], res.resolve
cons = res.conflicts
assert_equal 1, cons.size
con = cons.first
assert_equal "c (= 1)", con.dependency.to_s
assert_equal "c-2", con.activated.full_name
end
def test_conflict_resolution_only_effects_correct_spec
a1 = util_spec "a", "1", "c" => ">= 1"
b1 = util_spec "b", "1", "d" => ">= 1"
d3 = util_spec "d", "3", "c" => "= 1"
d4 = util_spec "d", "4", "c" => "= 1"
c1 = util_spec "c", "1"
c2 = util_spec "c", "2"
ad = make_dep "a"
bd = make_dep "b"
s = set(a1, b1, d3, d4, c1, c2)
res = Gem::DependencyResolver.new([ad, bd], s)
assert_set [a1, b1, c1, d4], res.resolve
cons = res.conflicts
assert_equal 1, cons.size
con = cons.first
assert_equal "c (= 1)", con.dependency.to_s
assert_equal "c-2", con.activated.full_name
end
def test_raises_dependency_error
a1 = util_spec "a", "1", "c" => "= 1"
b1 = util_spec "b", "1", "c" => "= 2"
c1 = util_spec "c", "1"
c2 = util_spec "c", "2"
ad = make_dep "a"
bd = make_dep "b"
s = set(a1, b1, c1, c2)
r = Gem::DependencyResolver.new([ad, bd], s)
e = assert_raises Gem::DependencyResolutionError do
r.resolve
end
assert_equal "unable to resolve conflicting dependencies 'c (= 2)' and 'c (= 1)'", e.message
deps = [make_dep("c", "= 2"), make_dep("c", "= 1")]
assert_equal deps, e.conflicting_dependencies
con = e.conflict
act = con.activated
assert_equal "c-1", act.spec.full_name
parent = act.parent
assert_equal "a-1", parent.spec.full_name
act = con.requester
assert_equal "b-1", act.spec.full_name
end
def test_raises_when_a_gem_is_missing
ad = make_dep "a"
r = Gem::DependencyResolver.new([ad], set)
e = assert_raises Gem::UnsatisfiableDepedencyError do
r.resolve
end
assert_equal "unable to find any gem matching dependency 'a (>= 0)'", e.message
assert_equal "a (>= 0)", e.dependency.to_s
end
def test_raises_when_a_gem_version_is_missing
a1 = util_spec "a", "1"
ad = make_dep "a", "= 3"
r = Gem::DependencyResolver.new([ad], set(a1))
e = assert_raises Gem::UnsatisfiableDepedencyError do
r.resolve
end
assert_equal "a (= 3)", e.dependency.to_s
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::DependencyResolver.new([ad, bd], s)
e = assert_raises Gem::ImpossibleDependenciesError do
r.resolve
end
assert_equal "detected 1 conflict with dependency 'c (>= 2)'", e.message
assert_equal "c (>= 2)", e.dependency.to_s
s, con = e.conflicts[0]
assert_equal "c-3", s.full_name
assert_equal "c (= 1)", con.dependency.to_s
assert_equal "b-1", con.requester.full_name
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::DependencyResolver.new([ad, bd], s)
assert_set [a1, b1, c1], r.resolve
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::DependencyResolver.new([d1, d2], s)
assert_set [rails, ap, rack101, lib1], r.resolve
# check it with the deps reverse too
r = Gem::DependencyResolver.new([d2, d1], s)
assert_set [lib1, rack101, rails, ap], r.resolve
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::DependencyResolver.new([d1, d2, d3], s)
assert_raises Gem::ImpossibleDependenciesError do
r.resolve
end
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::DependencyResolver.new([d1, d2], s)
assert_set [merch, mail, sup1], r.resolve
end
def test_second_level_backout
b1 = new_spec "b", "1", { "c" => ">= 1" }, "lib/b.rb"
b2 = new_spec "b", "2", { "c" => ">= 2" }, "lib/b.rb"
c1 = new_spec "c", "1"
c2 = new_spec "c", "2"
d1 = new_spec "d", "1", { "c" => "< 2" }, "lib/d.rb"
d2 = new_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::DependencyResolver.new([p1, p2], s)
assert_set [b1, c1, d2], r.resolve
end
end