Merge pull request #3800 from pducks32/wrong-order-parallel-installer

switch reject to select

lib/bundler/installer/parallel_installer.rb

@@ -35,10 +35,9 @@ def ignorable_dependency?(dep)
 
     # Checks installed dependencies against spec's dependencies to make
     # sure needed dependencies have been installed.
-    def dependencies_installed?(remaining_specs)
-      installed_specs = remaining_specs.reject(&:installed?).map(&:name)
-      already_installed = lambda {|dep| installed_specs.include? dep.name }
-      dependencies.all? {|d| already_installed[d] }
+    def dependencies_installed?(all_specs)
+      installed_specs = all_specs.select(&:installed?).map(&:name)
+      dependencies.all? {|d| installed_specs.include? d.name }
     end
 
     # Represents only the non-development dependencies and the ones that

spec/install/parallel/spec_installation_spec.rb

@@ -2,16 +2,16 @@
 require 'bundler/installer/parallel_installer'
 
 describe ParallelInstaller::SpecInstallation do
-  describe "#ready_to_enqueue?" do
 
-    let!(:dep) do
-      a_spec = Object.new
-      def a_spec.name
-        "I like tests"
-      end
-      a_spec
+  let!(:dep) do
+    a_spec = Object.new
+    def a_spec.name
+      "I like tests"
     end
+    a_spec
+  end
 
+  describe "#ready_to_enqueue?" do
     context "when in enqueued state" do
       it "is falsey" do
         spec = ParallelInstaller::SpecInstallation.new(dep)
@@ -34,4 +34,30 @@ def a_spec.name
     end
   end
 
+  describe "#dependencies_installed?" do
+    context "when all dependencies are installed" do
+      it "returns true" do
+        dependencies = []
+        dependencies << instance_double("SpecInstallation", :spec => "alpha", :name => "alpha", :installed? => true, :all_dependencies => [], :type => :production)
+        dependencies << instance_double("SpecInstallation", :spec => "beta", :name => "beta", :installed? => true, :all_dependencies => [], :type => :production)
+        all_specs = dependencies + [instance_double("SpecInstallation", :spec => "gamma", :name => "gamma", :installed? => false, :all_dependencies => [], :type => :production)]
+        spec = ParallelInstaller::SpecInstallation.new(dep)
+        allow(spec).to receive(:all_dependencies).and_return(dependencies)
+        expect(spec.dependencies_installed?(all_specs)).to be_truthy
+      end
+    end
+
+    context "when all dependencies are not installed" do
+      it "returns false" do
+        dependencies = []
+        dependencies << instance_double("SpecInstallation", :spec => "alpha", :name => "alpha", :installed? => false, :all_dependencies => [], :type => :production)
+        dependencies << instance_double("SpecInstallation", :spec => "beta", :name => "beta", :installed? => true, :all_dependencies => [], :type => :production)
+        all_specs = dependencies + [instance_double("SpecInstallation", :spec => "gamma", :name => "gamma", :installed? => false, :all_dependencies => [], :type => :production)]
+        spec = ParallelInstaller::SpecInstallation.new(dep)
+        allow(spec).to receive(:all_dependencies).and_return(dependencies)
+        expect(spec.dependencies_installed?(all_specs)).to be_falsey
+      end
+    end
+  end
+
 end