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1 files changed, 87 insertions, 0 deletions

diff --git a/jni/ruby/test/rubygems/test_gem_resolver_conflict.rb b/jni/ruby/test/rubygems/test_gem_resolver_conflict.rb
new file mode 100644
index 0000000..0cef0ca
--- /dev/null
+++ b/jni/ruby/test/rubygems/test_gem_resolver_conflict.rb
@@ -0,0 +1,87 @@
+require 'rubygems/test_case'
+
+class TestGemResolverConflict < Gem::TestCase
+
+  def test_self_compatibility
+    assert_same Gem::Resolver::Conflict, Gem::Resolver::DependencyConflict
+  end
+
+  def test_explanation
+    root  =
+      dependency_request dep('net-ssh', '>= 2.0.13'), 'rye', '0.9.8'
+    child =
+      dependency_request dep('net-ssh', '>= 2.6.5'), 'net-ssh', '2.2.2', root
+
+    dep = Gem::Resolver::DependencyRequest.new dep('net-ssh', '>= 2.0.13'), nil
+
+    spec = quick_spec 'net-ssh', '2.2.2'
+    active =
+      Gem::Resolver::ActivationRequest.new spec, dep
+
+    conflict =
+      Gem::Resolver::Conflict.new child, active
+
+    expected = <<-EXPECTED
+  Activated net-ssh-2.2.2
+  which does not match conflicting dependency (>= 2.6.5)
+
+  Conflicting dependency chains:
+    net-ssh (>= 2.0.13), 2.2.2 activated
+
+  versus:
+    rye (= 0.9.8), 0.9.8 activated, depends on
+    net-ssh (>= 2.0.13), 2.2.2 activated, depends on
+    net-ssh (>= 2.6.5)
+
+    EXPECTED
+
+    assert_equal expected, conflict.explanation
+  end
+
+  def test_explanation_user_request
+    @DR = Gem::Resolver
+
+    spec = util_spec 'a', 2
+
+    a1_req = @DR::DependencyRequest.new dep('a', '= 1'), nil
+    a2_req = @DR::DependencyRequest.new dep('a', '= 2'), nil
+
+    activated = @DR::ActivationRequest.new spec, a2_req
+
+    conflict = @DR::Conflict.new a1_req, activated
+
+    expected = <<-EXPECTED
+  Activated a-2
+  which does not match conflicting dependency (= 1)
+
+  Conflicting dependency chains:
+    a (= 2), 2 activated
+
+  versus:
+    a (= 1)
+
+    EXPECTED
+
+    assert_equal expected, conflict.explanation
+  end
+
+  def test_request_path
+    root  =
+      dependency_request dep('net-ssh', '>= 2.0.13'), 'rye', '0.9.8'
+
+    child =
+      dependency_request dep('other', '>= 1.0'), 'net-ssh', '2.2.2', root
+
+    conflict =
+      Gem::Resolver::Conflict.new nil, nil
+
+    expected = [
+      'net-ssh (>= 2.0.13), 2.2.2 activated',
+      'rye (= 0.9.8), 0.9.8 activated'
+    ]
+
+    assert_equal expected, conflict.request_path(child.requester)
+  end
+
+end
+