Merge pull request #9 from grepsedawk/flip-to-side-b

Fix multi-casette test runs

spec/vcr_spec.cr

@@ -13,6 +13,19 @@ describe VCR do
     end
   end
 
+  it "switches cassette_dir when new cassette is loaded" do
+    load_cassette("cassette-one") do
+      VCR.cassette_dir.should eq "spec/fixtures/vcr/cassette-one"
+    end
+
+    load_cassette("cassette-two") do
+      VCR.cassette_dir.should eq "spec/fixtures/vcr/cassette-two"
+    end
+
+    load_cassette("cassette-three")
+    VCR.cassette_dir.should eq "spec/fixtures/vcr/cassette-three"
+  end
+
   describe "#filter_sensitive_data!" do
     headers = HTTP::Headers.new
     headers["Authorization"] = "Bearer 123"

src/vcr.cr

@@ -8,7 +8,6 @@ module VCR
 
   @@in_order = false
   @@sequence = 0
-  @@cassette_dir : String? = nil
 
   Habitat.create do
     setting cassette_library_dir : String = "spec/fixtures/vcr"
@@ -21,7 +20,7 @@ module VCR
   end
 
   def cassette_dir
-    @@cassette_dir ||= File.join(VCR.settings.cassette_library_dir, cassette_name.not_nil!)
+    File.join(VCR.settings.cassette_library_dir, cassette_name.not_nil!)
   end
 
   # The current sequence, calling this will increment the value