effectiveProxyConfig = mergeWithPrecedence(mc.GetDefaultConfig(), effectiveProxyConfig)
	if p.rootNamespace != "" {
		effectiveProxyConfig = mergeWithPrecedence(p.mergedGlobalConfig(), effectiveProxyConfig)
	}

	if meta.Namespace != p.rootNamespace {
		namespacedConfig := p.mergedNamespaceConfig(meta.Namespace)
		effectiveProxyConfig = mergeWithPrecedence(namespacedConfig, effectiveProxyConfig)
	}

			},
			expected: &meshconfig.ProxyConfig{
				Tracing: &meshconfig.Tracing{
					Tracer: &meshconfig.Tracing_Datadog_{},
				},
			},
		},
	}

	for _, tc := range cases {
		merged := mergeWithPrecedence(tc.first, tc.second)
		assert.Equal(t, merged, tc.expected)
	}
}

func TestEffectiveProxyConfig(t *testing.T) {
	cases := []struct {
		name          string
		configs       []config.Config