c.requestedNames)
			if len(gotConfigs) != len(c.wantExtensionConfig) {
				t.Fatalf("number of extension config got %v want %v", len(gotConfigs), len(c.wantExtensionConfig))
			}
			for i, gc := range gotConfigs {
				assert.Equal(t, gc, c.wantExtensionConfig[i])
			}
		})
	}