1 files changed, 66 insertions, 0 deletions
diff --git a/logging/test/handler_test.go b/logging/test/handler_test.go
new file mode 100644
index 0000000..5e9430a
--- /dev/null
+++ b/logging/test/handler_test.go
@@ -0,0 +1,66 @@
+package test_test
+
+import (
+	"fmt"
+	"log/slog"
+	"runtime"
+	"testing"
+	"testing/slogtest"
+
+	"go.sudomsg.com/kit/logging/test"
+)
+
+func TestMockHandlerCompliance(t *testing.T) {
+	var lastMock *test.MockHandler
+
+	slogtest.Run(t,
+		func(t *testing.T) slog.Handler {
+			lastMock = test.NewMockLogHandler(t)
+			return lastMock
+		},
+		func(t *testing.T) map[string]any {
+			t.Helper()
+
+			recs := lastMock.Records()
+			if len(recs) == 0 {
+				t.Fatalf("no records captured")
+			}
+
+			rec := recs[len(recs)-1]
+
+			// Convert slog.Record to map[string]any
+			m := make(map[string]any)
+			if !rec.Time.IsZero() {
+				m[slog.TimeKey] = rec.Time
+			}
+			if rec.PC != 0 {
+				fs := runtime.CallersFrames([]uintptr{rec.PC})
+				f, _ := fs.Next()
+				m[slog.SourceKey] = fmt.Sprintf("%s:%d", f.File, f.Line)
+			}
+			m[slog.LevelKey] = rec.Level
+			m[slog.MessageKey] = rec.Message
+
+			rec.Attrs(func(attr slog.Attr) bool {
+				insertAttr(t, m, attr)
+				return true
+			})
+
+			return m
+		},
+	)
+}
+
+func insertAttr(t testing.TB, m map[string]any, attr slog.Attr) {
+	t.Helper()
+
+	if attr.Value.Kind() == slog.KindGroup {
+		groupMap := make(map[string]any)
+		for _, a := range attr.Value.Group() {
+			insertAttr(t, groupMap, a)
+		}
+		m[attr.Key] = groupMap
+	} else {
+		m[attr.Key] = attr.Value.Any()
+	}
+}