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LunaGao / flag_flutter

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BSD 2-Clause "Simplified" License
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How to write tests with flag widgets #24

Open PMatthaei opened 4 years ago

PMatthaei commented 4 years ago

I am currently trying to write a test concerning a widget which includes Flag.getFlags(...)

when running the test for the first time i receive the error copied below. When the same test runs a second time (chronologically after the first) it seems to run through. How should i write tests with flag-widgets?

══╡ EXCEPTION CAUGHT BY SVG ╞═══════════════════════════════════════════════════════════════════════ The following assertion was thrown resolving a single-frame picture stream: Unable to load asset: packages/flag/res/flag/de.svg

When the exception was thrown, this was the stack:

0 PlatformAssetBundle.load (package:flutter/src/services/asset_bundle.dart:221:7)

#1 AssetBundle.loadString (package:flutter/src/services/asset_bundle.dart:67:33) #2 CachingAssetBundle.loadString. (package:flutter/src/services/asset_bundle.dart:162:56) #3 _LinkedHashMapMixin.putIfAbsent (dart:collection-patch/compact_hash.dart:293:23) #4 CachingAssetBundle.loadString (package:flutter/src/services/asset_bundle.dart:162:27) #5 AssetBundlePictureProvider._loadAsync (package:flutter_svg/src/picture_provider.dart:449:42) #6 AssetBundlePictureProvider.load (package:flutter_svg/src/picture_provider.dart:435:43) #7 PictureProvider.resolve.. (package:flutter_svg/src/picture_provider.dart:327:17) #8 PictureCache.putIfAbsent (package:flutter_svg/src/picture_cache.dart:67:22) #9 PictureProvider.resolve. (package:flutter_svg/src/picture_provider.dart:325:16) #10 SynchronousFuture.then (package:flutter/src/foundation/synchronous_future.dart:38:29) #11 PictureProvider.resolve (package:flutter_svg/src/picture_provider.dart:322:24) #12 _SvgPictureState._resolveImage (package:flutter_svg/svg.dart:641:10) #13 _SvgPictureState.didChangeDependencies (package:flutter_svg/svg.dart:615:5) #14 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4376:12) #15 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #16 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #17 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #18 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14) #19 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #20 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #21 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #22 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #23 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #24 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #25 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #26 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #27 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #28 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #29 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #30 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #31 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #32 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #33 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #34 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #35 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #36 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4381:11) #37 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #38 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #39 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #40 _ListTileElement._mountChild (package:flutter/src/material/list_tile.dart:999:30) #41 _ListTileElement.mount (package:flutter/src/material/list_tile.dart:1015:5) #42 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #43 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #44 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #45 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #46 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #47 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #48 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #49 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #50 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14) #51 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #52 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #53 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #54 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #55 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #56 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #57 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #58 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #59 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14) #60 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #61 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #62 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14) #63 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #64 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #65 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #66 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #67 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #68 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #69 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #70 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #71 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14) #72 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #73 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #74 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #75 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #76 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #77 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4381:11) #78 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #79 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #80 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #81 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #82 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #83 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #84 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #85 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #86 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #87 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14) #88 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #89 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #90 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14) #91 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #92 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #93 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #94 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #95 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #96 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #97 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #98 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #99 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #100 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #101 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #102 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4381:11) #103 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #104 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #105 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #106 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #107 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #108 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #109 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #110 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #111 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #112 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #113 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #114 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #115 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4381:11) #116 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #117 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #118 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #119 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #120 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #121 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #122 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #123 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #124 MultiChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5551:32) #125 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #126 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #127 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14) #128 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #129 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #130 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #131 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #132 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #133 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #134 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #135 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #136 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #137 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #138 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #139 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4381:11) #140 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #141 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #142 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #143 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14) #144 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #145 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #146 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #147 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #148 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #149 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #150 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #151 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #152 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14) #153 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #154 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #155 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #156 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #157 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #158 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #159 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #160 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #161 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14) #162 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #163 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #164 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #165 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #166 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #167 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4381:11) #168 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #169 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #170 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #171 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #172 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #173 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #174 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4381:11) #175 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #176 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #177 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #178 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14) #179 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #180 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #181 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #182 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #183 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #184 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #185 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #186 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #187 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14) #188 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #189 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #190 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #191 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #192 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #193 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #194 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #195 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #196 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #197 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #198 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #199 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4381:11) #200 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #201 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #202 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #203 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #204 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #205 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #206 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4381:11) #207 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #208 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #209 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #210 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14) #211 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #212 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #213 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5445:14) #214 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #215 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #216 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #217 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #218 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #219 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #220 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #221 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #222 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #223 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #224 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #225 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #226 ParentDataElement.mount (package:flutter/src/widgets/framework.dart:4617:11) #227 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #228 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #229 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #230 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #231 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #232 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4381:11) #233 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #234 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #235 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #236 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4243:16) #237 Element.rebuild (package:flutter/src/widgets/framework.dart:3947:5) #238 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4206:5) #239 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4201:5) #240 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3194:14) #241 Element.updateChild (package:flutter/src/widgets/framework.dart:2988:12) #242 SliverMultiBoxAdaptorElement.updateChild (package:flutter/src/widgets/sliver.dart:1288:36) #243 SliverMultiBoxAdaptorElement.createChild. (package:flutter/src/widgets/sliver.dart:1273:20) #244 BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2412:19) #245 SliverMultiBoxAdaptorElement.createChild (package:flutter/src/widgets/sliver.dart:1266:11) #246 RenderSliverMultiBoxAdaptor._createOrObtainChild. (package:flutter/src/rendering/sliver_multi_box_adaptor.dart:354:23) #247 RenderObject.invokeLayoutCallback. (package:flutter/src/rendering/object.dart:1823:58) #248 PipelineOwner._enableMutationsToDirtySubtrees (package:flutter/src/rendering/object.dart:875:15) #249 RenderObject.invokeLayoutCallback (package:flutter/src/rendering/object.dart:1823:13) #250 RenderSliverMultiBoxAdaptor._createOrObtainChild (package:flutter/src/rendering/sliver_multi_box_adaptor.dart:343:5) #251 RenderSliverMultiBoxAdaptor.addInitialChild (package:flutter/src/rendering/sliver_multi_box_adaptor.dart:427:5) #252 RenderSliverList.performLayout (package:flutter/src/rendering/sliver_list.dart:78:12) #253 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #254 RenderSliverEdgeInsetsPadding.performLayout (package:flutter/src/rendering/sliver_padding.dart:134:11) #255 RenderSliverPadding.performLayout (package:flutter/src/rendering/sliver_padding.dart:373:11) #256 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #257 RenderViewportBase.layoutChildSequence (package:flutter/src/rendering/viewport.dart:410:13) #258 RenderViewport._attemptLayout (package:flutter/src/rendering/viewport.dart:1367:12) #259 RenderViewport.performLayout (package:flutter/src/rendering/viewport.dart:1285:20) #260 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #261 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #262 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #263 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #264 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #265 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #266 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #267 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #268 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #269 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #270 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #271 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #272 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #273 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #274 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #275 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #276 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #277 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #278 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #279 MultiChildLayoutDelegate.layoutChild (package:flutter/src/rendering/custom_layout.dart:163:11) #280 _ScaffoldLayout.performLayout (package:flutter/src/material/scaffold.dart:477:7) #281 MultiChildLayoutDelegate._callPerformLayout (package:flutter/src/rendering/custom_layout.dart:232:7) #282 RenderCustomMultiChildLayoutBox.performLayout (package:flutter/src/rendering/custom_layout.dart:391:14) #283 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #284 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #285 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #286 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #287 _RenderCustomClip.performLayout (package:flutter/src/rendering/proxy_box.dart:1232:11) #288 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #289 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #290 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #291 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #292 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #293 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #294 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #295 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #296 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #297 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #298 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #299 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #300 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #301 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #302 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #303 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #304 RenderOffstage.performLayout (package:flutter/src/rendering/proxy_box.dart:3168:13) #305 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #306 RenderStack.performLayout (package:flutter/src/rendering/stack.dart:505:15) #307 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #308 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #309 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #310 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #311 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #312 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #313 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #314 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #315 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #316 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #317 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #318 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #319 RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7) #320 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13) #321 RenderObject._layoutWithoutResize (package:flutter/src/rendering/object.dart:1584:7) #322 PipelineOwner.flushLayout (package:flutter/src/rendering/object.dart:844:18) #323 AutomatedTestWidgetsFlutterBinding.drawFrame (package:flutter_test/src/binding.dart:977:23) #324 RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:283:5) #325 SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1102:15) #326 SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:1041:9) #327 AutomatedTestWidgetsFlutterBinding.pump. (package:flutter_test/src/binding.dart:872:9) #330 TestAsyncUtils.guard (package:flutter_test/src/test_async_utils.dart:69:41) #331 AutomatedTestWidgetsFlutterBinding.pump (package:flutter_test/src/binding.dart:859:27) #332 WidgetTester.pump. (package:flutter_test/src/widget_tester.dart:343:53) #335 TestAsyncUtils.guard (package:flutter_test/src/test_async_utils.dart:69:41) #336 WidgetTester.pump (package:flutter_test/src/widget_tester.dart:343:27) #337 main.. (file:///C:/Projekte/aphasia-flutter-app/test/widgets/word_trainer/deck_list_widget_test.dart:62:20) #351 AutomatedTestWidgetsFlutterBinding.runTest. (package:flutter_test/src/binding.dart:1066:17) #353 AutomatedTestWidgetsFlutterBinding.runTest. (package:flutter_test/src/binding.dart:1054:35) (elided 33 frames from class _FakeAsync, package dart:async, package dart:async-patch, and package stack_trace) Picture provider: ExactAssetPicture(name: "packages/flag/res/flag/de.svg", bundle: null, colorFilter: null) Picture key: AssetBundlePictureKey(bundle: PlatformAssetBundle#06fc8(), name: "packages/flag/res/flag/de.svg", colorFilter: null)
LunaGao commented 4 years ago

@PMatthaei Good point. I never thought about this problem. Would you share some test code so that I can better understand how to help you solve this problem?

PMatthaei commented 4 years ago

I guess this test should be able to run in a project which is importing this package.

import 'package:flutter_test/flutter_test.dart';

import 'package:flag/flag.dart';

void main() {
  testWidgets('flag widget test', (WidgetTester tester) async {
    await tester.pumpWidget(Flags.getFlag(country: 'AD'));
  });
}