add test layout for router input/output processors

internal/processor/test/router-input_test.go

@@ -0,0 +1,155 @@
+package processor_test
+
+import (
+	"context"
+	"reflect"
+	"testing"
+
+	"github.com/jwetzell/showbridge-go/internal/common"
+	"github.com/jwetzell/showbridge-go/internal/config"
+	"github.com/jwetzell/showbridge-go/internal/processor"
+)
+
+func TestRouterOutputFromRegistry(t *testing.T) {
+	registration, ok := processor.ProcessorRegistry["router.output"]
+	if !ok {
+		t.Fatalf("router.output processor not registered")
+	}
+
+	processorInstance, err := registration.New(config.ProcessorConfig{
+		Type: "router.output",
+		Params: config.Params{
+			"module": "test",
+		},
+	})
+
+	if err != nil {
+		t.Fatalf("failed to create router.output processor: %s", err)
+	}
+
+	if processorInstance.Type() != "router.output" {
+		t.Fatalf("router.output processor has wrong type: %s", processorInstance.Type())
+	}
+
+	payload := "test"
+	expected := "test"
+
+	got, err := processorInstance.Process(GetContextWithRouter(t.Context()), common.GetWrappedPayload(t.Context(), payload))
+	if err != nil {
+		t.Fatalf("router.output processing failed: %s", err)
+	}
+
+	if got.Payload != expected {
+		t.Fatalf("router.output got %+v, expected %+v", got, expected)
+	}
+}
+
+func TestGoodRouterOutput(t *testing.T) {
+
+	tests := []struct {
+		name     string
+		params   map[string]any
+		payload  any
+		expected any
+	}{}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+
+			registration, ok := processor.ProcessorRegistry["router.output"]
+			if !ok {
+				t.Fatalf("router.output processor not registered")
+			}
+
+			processorInstance, err := registration.New(config.ProcessorConfig{
+				Type:   "router.output",
+				Params: test.params,
+			})
+
+			if err != nil {
+				t.Fatalf("router.output failed to create processor: %s", err)
+			}
+
+			got, err := processorInstance.Process(t.Context(), common.GetWrappedPayload(GetContextWithRouter(t.Context()), test.payload))
+			if err != nil {
+				t.Fatalf("router.output processing failed: %s", err)
+			}
+
+			if !reflect.DeepEqual(got.Payload, test.expected) {
+				t.Fatalf("router.output got %+v (%T), expected %+v (%T)", got.Payload, got.Payload, test.expected, test.expected)
+			}
+		})
+	}
+}
+
+func TestBadRouterOutput(t *testing.T) {
+	tests := []struct {
+		name              string
+		params            map[string]any
+		payload           any
+		processCtx        context.Context
+		wrappedPayloadCtx context.Context
+		errorString       string
+	}{
+		{
+			name:              "no module param",
+			params:            map[string]any{},
+			payload:           "test",
+			processCtx:        GetContextWithRouter(t.Context()),
+			wrappedPayloadCtx: t.Context(),
+			errorString:       "router.output module error: not found",
+		},
+		{
+			name: "non-string module",
+			params: map[string]any{
+				"module": 123,
+			},
+			payload:           "test",
+			processCtx:        GetContextWithRouter(t.Context()),
+			wrappedPayloadCtx: t.Context(),
+			errorString:       "router.output module error: not a string",
+		},
+		{
+			name: "router not found in context",
+			params: map[string]any{
+				"module": "test",
+			},
+			payload:           "test",
+			processCtx:        t.Context(),
+			wrappedPayloadCtx: t.Context(),
+			errorString:       "router.output no router found",
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+
+			registration, ok := processor.ProcessorRegistry["router.output"]
+			if !ok {
+				t.Fatalf("router.output processor not registered")
+			}
+
+			processorInstance, err := registration.New(config.ProcessorConfig{
+				Type:   "router.output",
+				Params: test.params,
+			})
+
+			if err != nil {
+				if test.errorString != err.Error() {
+					t.Fatalf("router.output got error '%s', expected '%s'", err.Error(), test.errorString)
+				}
+				return
+			}
+
+			got, err := processorInstance.Process(test.processCtx, common.GetWrappedPayload(test.wrappedPayloadCtx, test.payload))
+
+			if err == nil {
+				t.Fatalf("router.output expected to fail but succeeded, got: %v", got)
+			}
+
+			if err.Error() != test.errorString {
+				t.Fatalf("router.output got error '%s', expected '%s'", err.Error(), test.errorString)
+			}
+		})
+	}
+}