1 files changed, 47 insertions, 14 deletions
diff --git a/spec/install/gems/sources_spec.rb b/spec/install/gems/sources_spec.rb
index 946eb9d2..632a7ac3 100644
--- a/spec/install/gems/sources_spec.rb
+++ b/spec/install/gems/sources_spec.rb
@@ -4,24 +4,57 @@ describe "bundle install with gems on multiple sources" do
   # repo1 is built automatically before all of the specs run
   # it contains rack-obama 1.0.0 and rack 0.9.1 & 1.0.0 amongst other gems
 
-  it "searches gem sources from last to first" do
-    # Oh no! Someone evil is trying to hijack rack :(
-    # need this to be broken to check for correct source ordering
-    build_repo gem_repo3 do
-      build_gem "rack", "1.0.0" do |s|
-        s.write "lib/rack.rb", "RACK = 'FAIL'"
+  context "without source affinity" do
+    before do
+      # Oh no! Someone evil is trying to hijack rack :(
+      # need this to be broken to check for correct source ordering
+      build_repo gem_repo3 do
+        build_gem "rack", repo3_rack_version do |s|
+          s.write "lib/rack.rb", "RACK = 'FAIL'"
+        end
       end
     end
 
-    gemfile <<-G
-      source "file://#{gem_repo3}"
-      source "file://#{gem_repo1}"
-      gem "rack-obama"
-      gem "rack"
-    G
+    context "when the same version of the same gem is in multiple sources" do
+      let(:repo3_rack_version) { "1.0.0" }
 
-    bundle :install
+      before do
+        gemfile <<-G
+          source "file://#{gem_repo3}"
+          source "file://#{gem_repo1}"
+          gem "rack-obama"
+          gem "rack"
+        G
+      end
+
+      it "warns about ambiguous gems, but installs anyway, prioritizing sources last to first" do
+        bundle :install
+
+        expect(out).to include("Warning: the gem 'rack' was found in multiple sources.")
+        expect(out).to include("Installed from: file:#{gem_repo1}")
+        should_be_installed("rack-obama 1.0.0", "rack 1.0.0")
+      end
+    end
+
+    context "when different versions of the same gem are in multiple sources" do
+      let(:repo3_rack_version) { "1.2" }
 
-    should_be_installed("rack-obama 1.0.0", "rack 1.0.0")
+      before do
+        gemfile <<-G
+          source "file://#{gem_repo3}"
+          source "file://#{gem_repo1}"
+          gem "rack-obama"
+          gem "rack", "1.0.0" # force it to install the working version in repo1
+        G
+      end
+
+      it "warns about ambiguous gems, but installs anyway" do
+        bundle :install
+
+        expect(out).to include("Warning: the gem 'rack' was found in multiple sources.")
+        expect(out).to include("Installed from: file:#{gem_repo1}")
+        should_be_installed("rack-obama 1.0.0", "rack 1.0.0")
+      end
+    end
   end
 end