Add more unit tests

pkg/plugin/connector/builtin/registry.go

@@ -46,16 +46,6 @@ var DefaultBuiltinConnectors = map[string]sdk.Connector{
 	"github.com/conduitio/conduit-connector-s3":        s3.Connector,
 }
 
-type Registry struct {
-	logger log.CtxLogger
-
-	connectors map[string]sdk.Connector
-	// plugins stores plugin blueprints in a 2D map, first key is the plugin
-	// name, the second key is the plugin version
-	plugins map[string]map[string]blueprint
-	service *connutils.SchemaService
-}
-
 type blueprint struct {
 	fullName         plugin.FullName
 	specification    pconnector.Specification
@@ -89,6 +79,16 @@ func newDispenserFactory(conn sdk.Connector) dispenserFactory {
 	}
 }
 
+type Registry struct {
+	logger log.CtxLogger
+
+	connectors map[string]sdk.Connector
+	// plugins stores plugin blueprints in a 2D map, first key is the plugin
+	// name, the second key is the plugin version
+	plugins map[string]map[string]blueprint
+	service *connutils.SchemaService
+}
+
 func NewRegistry(logger log.CtxLogger, connectors map[string]sdk.Connector, service *connutils.SchemaService) *Registry {
 	logger = logger.WithComponentFromType(Registry{})
 	// The built-in plugins use Conduit's own schema service

pkg/plugin/connector/builtin/registry_test.go

@@ -0,0 +1,110 @@
+// Copyright © 2024 Meroxa, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package builtin
+
+import (
+	"context"
+	"testing"
+
+	"github.com/conduitio/conduit-connector-protocol/pconnector"
+	"github.com/conduitio/conduit/pkg/foundation/cerrors"
+	"github.com/conduitio/conduit/pkg/foundation/log"
+	"github.com/conduitio/conduit/pkg/plugin"
+	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp/cmpopts"
+	"github.com/matryer/is"
+)
+
+func TestRegistry_InitList(t *testing.T) {
+	is := is.New(t)
+	ctx := context.Background()
+
+	underTest := NewRegistry(log.Nop(), DefaultBuiltinConnectors, nil)
+	underTest.Init(ctx)
+
+	specs := underTest.List()
+
+	is.Equal(len(DefaultBuiltinConnectors), len(specs))
+	for _, gotSpec := range specs {
+		wantSpec := DefaultBuiltinConnectors["github.com/conduitio/conduit-connector-"+gotSpec.Name].NewSpecification()
+		is.Equal(
+			"",
+			cmp.Diff(
+				pconnector.Specification(wantSpec),
+				gotSpec,
+				cmpopts.IgnoreFields(pconnector.Specification{}, "SourceParams", "DestinationParams"),
+			),
+		)
+	}
+}
+
+func TestRegistry_NewDispenser_PluginNotFound(t *testing.T) {
+	testCases := []struct {
+		name       string
+		pluginName string
+		wantErr    bool
+	}{
+		{
+			name:       "non-existing plugin",
+			pluginName: "builtin:foobar",
+			wantErr:    true,
+		},
+		{
+			name:       "plugin exists, version doesn't",
+			pluginName: "builtin:[email protected]",
+			wantErr:    true,
+		},
+		{
+			name:       "existing plugin, no builtin prefix, no version",
+			pluginName: "file",
+			wantErr:    false,
+		},
+		{
+			name:       "existing plugin, with builtin prefix, no version",
+			pluginName: "builtin:file",
+			wantErr:    false,
+		},
+		{
+			name: "existing plugin, with builtin prefix, with version",
+			pluginName: func() string {
+				v := DefaultBuiltinConnectors["github.com/conduitio/conduit-connector-file"].
+					NewSpecification().
+					Version
+				return "builtin:file@" + v
+			}(),
+			wantErr: false,
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			is := is.New(t)
+			ctx := context.Background()
+
+			underTest := NewRegistry(log.Nop(), DefaultBuiltinConnectors, nil)
+			underTest.Init(ctx)
+
+			dispenser, err := underTest.NewDispenser(log.Nop(), plugin.FullName(tc.pluginName), pconnector.PluginConfig{})
+			if tc.wantErr {
+				is.True(cerrors.Is(err, plugin.ErrPluginNotFound))
+				is.True(dispenser == nil)
+				return
+			}
+
+			is.NoErr(err)
+			is.True(dispenser != nil)
+		})
+	}
+}