feat: add mock generation for DA interface using mockery (#110)

This commit introduces mock generation for the DA interface, including a new `mock-gen` Makefile target. A `.mockery.yaml` configuration file is added and dependencies updated to support the mock generation.

.mockery.yaml

@@ -0,0 +1,8 @@
+packages:
+  github.com/rollkit/go-da:
+    config:
+      dir: mocks
+      outpkg: mocks
+      filename: "{{.InterfaceName}}.go"
+    interfaces:
+      DA:

Makefile

@@ -83,3 +83,11 @@ proto-lint: check-proto-deps
 	@echo "--> Linting Protobuf files"
 	@go run github.com/bufbuild/buf/cmd/buf@latest lint --error-format=json
 .PHONY: proto-lint
+
+## mock-gen: Re-generates DA mock
+mock-gen: mocks/DA.go
+.PHONY: mock-gen
+
+mocks/DA.go: da.go .mockery.yaml
+	@mockery
+

go.mod

@@ -18,6 +18,7 @@ require (
 	github.com/gorilla/websocket v1.4.2 // indirect
 	github.com/mattn/go-isatty v0.0.14 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/stretchr/objx v0.5.2 // indirect
 	go.opencensus.io v0.22.3 // indirect
 	go.uber.org/atomic v1.7.0 // indirect
 	go.uber.org/multierr v1.6.0 // indirect

go.sum

@@ -39,6 +39,8 @@ github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINE
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.5.2 h1:xuMeJ0Sdp5ZMRXx/aWO6RZxdr3beISkG5/G/aIRr3pY=
+github.com/stretchr/objx v0.5.2/go.mod h1:FRsXN1f5AsAjCGJKqEizvkpNtU+EGNCLh3NxZ/8L+MA=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=