failing specs for BUNDLED WITH preservation

we want to avoid changing the lock just to add BUNDLED WITH unless the 
user is explicitly running a Bundler command; implicit locking should 
not alter the lockfile.

2 files changed, 109 insertions, 0 deletions

diff --git a/spec/commands/check_spec.rb b/spec/commands/check_spec.rb
index 6d047597d5..0213f4b7d1 100644
--- a/spec/commands/check_spec.rb
+++ b/spec/commands/check_spec.rb
@@ -275,4 +275,59 @@ describe "bundle check" do
       expect(out).to include("* rack (1.0")
     end
   end
+
+  describe "BUNDLED WITH" do
+    def lock_with(bundler_version = nil)
+      lock = <<-L
+        GEM
+          remote: file:#{gem_repo1}/
+          specs:
+            rack (1.0.0)
+
+        PLATFORMS
+          #{generic(Gem::Platform.local)}
+
+        DEPENDENCIES
+          rack
+      L
+
+      if bundler_version
+        lock << "\n        BUNDLED WITH\n           #{bundler_version}\n"
+      end
+
+      lock
+    end
+
+    before do
+      install_gemfile <<-G
+        source "file://#{gem_repo1}"
+        gem "rack"
+      G
+    end
+
+    context "is not present" do
+      it "does not change the lock" do
+        lockfile lock_with(nil)
+        bundle :check
+        lockfile_should_be lock_with(nil)
+      end
+    end
+
+    context "is newer" do
+      it "does not change the lock" do
+        lockfile lock_with(Bundler::VERSION.succ)
+        bundle :check
+        lockfile_should_be lock_with(Bundler::VERSION.succ)
+      end
+    end
+
+    context "is older" do
+      it "does not change the lock" do
+        lockfile lock_with("1.10.1")
+        bundle :check
+        lockfile_should_be lock_with("1.10.1")
+      end
+    end
+  end
+
 end
diff --git a/spec/runtime/setup_spec.rb b/spec/runtime/setup_spec.rb
index cd9912dcff..2950f925c3 100644
--- a/spec/runtime/setup_spec.rb
+++ b/spec/runtime/setup_spec.rb
@@ -899,4 +899,58 @@ describe "Bundler.setup" do
     end
   end
 
+  describe "when BUNDLED WITH" do
+    def lock_with(bundler_version = nil)
+      lock = <<-L
+        GEM
+          remote: file:#{gem_repo1}/
+          specs:
+            rack (1.0.0)
+
+        PLATFORMS
+          #{generic(Gem::Platform.local)}
+
+        DEPENDENCIES
+          rack
+      L
+
+      if bundler_version
+        lock << "\n        BUNDLED WITH\n           #{bundler_version}\n"
+      end
+
+      lock
+    end
+
+    before do
+      install_gemfile <<-G
+        source "file://#{gem_repo1}"
+        gem "rack"
+      G
+    end
+
+    context "is not present" do
+      it "does not change the lock" do
+        lockfile lock_with(nil)
+        ruby "require 'bundler/setup'"
+        lockfile_should_be lock_with(nil)
+      end
+    end
+
+    context "is newer" do
+      it "does not change the lock" do
+        lockfile lock_with(Bundler::VERSION.succ)
+        ruby "require 'bundler/setup'"
+        lockfile_should_be lock_with(Bundler::VERSION.succ)
+      end
+    end
+
+    context "is older" do
+      it "does not change the lock" do
+        lockfile lock_with("1.10.1")
+        ruby "require 'bundler/setup'"
+        lockfile_should_be lock_with("1.10.1")
+      end
+    end
+  end
+
 end