Spec that deps should rescue UnmeetableDep and fail fast when it's ra…

…ised during met? and meet.

spec/babushka/dep_spec.rb

@@ -431,6 +431,12 @@
     ).meet.should == false
     @yield_counts['unmeetable'].should == @yield_counts_meet_run
   end
+  it "should fail fast on explicitly unmeetable deps" do
+    make_counter_dep(
+      :name => 'explicitly unmeetable', :met? => L{ raise UnmeetableDep }
+    ).meet.should == false
+    @yield_counts['explicitly unmeetable'].should == @yield_counts_met_run
+  end
   it "should fail, run meet, and then succeed on unmet deps" do
     make_counter_dep(
       :name => 'unmet', :met? => L{ @yield_counts['unmet'][:met?] > 1 }
@@ -443,6 +449,12 @@
     ).meet.should == false
     @yield_counts['unmet, #before fails'].should == @yield_counts_failed_at_before
   end
+  it "should fail, not run meet, and fail again on unmet deps where meet raises UnmeetableDep" do
+    make_counter_dep(
+      :name => 'unmet, #before fails', :met? => L{ false }, :meet => L{ raise UnmeetableDep }
+    ).meet.should == false
+    @yield_counts['unmet, #before fails'].should == @yield_counts_early_exit_meet_run
+  end
   it "should fail, run meet, and then succeed on unmet deps where after fails" do
     make_counter_dep(
       :name => 'unmet, #after fails', :met? => L{ @yield_counts['unmet, #after fails'][:met?] > 1 }, :after => L{ false }

spec/babushka/dep_support.rb

@@ -6,6 +6,7 @@ def setup_yield_counts
   @yield_counts_meet_run = {:setup => 1, :met? => 2, :prepare => 1, :before => 1, :meet => 1, :after => 1}
   @yield_counts_dep_failed = {:setup => 1}
   @yield_counts_failed_meet_run = {:setup => 1, :met? => 2, :prepare => 1, :before => 1, :meet => 1, :after => 1}
+  @yield_counts_early_exit_meet_run = {:setup => 1, :met? => 1, :prepare => 1, :before => 1, :meet => 1}
   @yield_counts_already_met = {:setup => 1, :met? => 1}
   @yield_counts_failed_at_before = {:setup => 1, :met? => 2, :prepare => 1, :before => 1}
 end