feat: build vehicle data platform and production pipeline

go/vehicle-gateway/internal/observability/logger_test.go

@@ -0,0 +1,27 @@
+package observability
+
+import (
+	"log/slog"
+	"testing"
+)
+
+func TestParseLogLevel(t *testing.T) {
+	tests := []struct {
+		name  string
+		value string
+		want  slog.Level
+	}{
+		{name: "empty defaults to info", value: "", want: slog.LevelInfo},
+		{name: "unknown defaults to info", value: "trace", want: slog.LevelInfo},
+		{name: "debug", value: "debug", want: slog.LevelDebug},
+		{name: "warn alias", value: "warning", want: slog.LevelWarn},
+		{name: "error trims and lowercases", value: " ERROR ", want: slog.LevelError},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := parseLogLevel(tt.value); got != tt.want {
+				t.Fatalf("parseLogLevel(%q) = %v, want %v", tt.value, got, tt.want)
+			}
+		})
+	}
+}