renamed

radar/2018-01-01/pact.md

@@ -0,0 +1,17 @@
+---
+title:      "PACT"
+ring:       trial
+quadrant:   tools
+
+---
+
+PACT (http://pact.io/) is a family of frameworks that provides support for *Consumer Driven Contract testing* accross different langauages and frameworks.
+
+Consumer Driven Contract testing is a pattern for testing interfaces/boundaries between services.
+
+It allows "consumers" to run tests against a defined Mock and record the defined interactions (=PACT).
+It puts "providers" in the position to run the PACT tests inside theire Continuous Integration Pipelines, so that the provider knows if he might break any consumers.
+
+This approach makes sense in organisations where teams collaborate more closely (See [Strategic Domain Driven Design](/methods-and-patterns/strategic-domain-driven-design.html) ), e.g. to build [Microservice oriented architectures](/methods-and-patterns/microservices.html)
+
+Consumer Driven Contract Testing and how it can be conducted with PACT is documented very nicely on the official PACT website: https://docs.pact.io/.