105 lines
4.9 KiB
Python
105 lines
4.9 KiB
Python
import json
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import subprocess
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from pathlib import Path
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SYNC = Path(__file__).parents[1] / "frontend" / "unfiled-draft-sync.js"
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def run_node(script: str):
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result = subprocess.run(["node", "-e", script], check=True, capture_output=True, text=True)
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return json.loads(result.stdout)
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def test_unfiled_draft_sync_moves_capture_between_devices_and_propagates_delete():
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script = f"""
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const createSync=require({json.dumps(str(SYNC))});
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let remote={{revision:0,drafts:[]}};
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function api(url,init={{}}) {{
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if (!init.method) return Promise.resolve(JSON.parse(JSON.stringify(remote)));
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const body=JSON.parse(init.body);
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if (body.revision!==remote.revision) {{
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const error=new Error('conflict');error.status=409;error.payload={{detail:{{snapshot:remote}}}};return Promise.reject(error);
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}}
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remote={{revision:remote.revision+1,drafts:body.drafts}};
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return Promise.resolve(JSON.parse(JSON.stringify(remote)));
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}}
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function device(initial=[]) {{
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let drafts=initial.map(item=>({{...item}})); const values=new Map(); const states=[];
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const captures={{
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exportOwned:async()=>drafts.map(item=>({{...item}})),
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mergeRemote:async(items)=>{{let count=0;for(const item of items)if(!drafts.some(x=>x.id===item.id)){{drafts.push({{...item}});count++}}return count}},
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discard:async id=>{{drafts=drafts.filter(item=>item.id!==id);return true}},
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}};
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const storage={{getItem:key=>values.get(key)||null,setItem:(key,value)=>values.set(key,value)}};
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const sync=createSync({{captures,fetchJson:api,storage,onState:state=>states.push(state)}});
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return {{sync,states,drafts:()=>drafts}};
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}}
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(async()=>{{
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const phone=device([{{id:'field',title:'Field failure',body:'Steps',saved_at:42,evidence:[{{filename:'proof.png',content_type:'image/png',data:'cHJvb2Y='}}]}}]);
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await phone.sync.sync('timmy');
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const desktop=device();
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await desktop.sync.sync('timmy');
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await desktop.sync.remove('field','timmy');
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await phone.sync.sync('timmy');
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process.stdout.write(JSON.stringify({{
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remote,desktop:desktop.drafts(),phone:phone.drafts(),
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phoneStates:phone.states.map(x=>x.status),desktopStates:desktop.states.map(x=>x.status),
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}}));
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}})().catch(error=>{{console.error(error);process.exit(1)}});
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"""
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output = run_node(script)
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assert output["remote"]["revision"] == 2
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assert output["remote"]["drafts"] == []
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assert output["desktop"] == []
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assert output["phone"] == []
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assert output["phoneStates"][-1] == "ready"
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assert output["desktopStates"][-1] == "ready"
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def test_unfiled_draft_sync_surfaces_revision_conflict_without_losing_local_draft():
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script = f"""
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const createSync=require({json.dumps(str(SYNC))});
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let calls=0;const states=[];let drafts=[{{id:'local',title:'Local',body:'',saved_at:1}}];
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const conflict={{revision:2,drafts:[{{id:'remote',title:'Remote',body:'',saved_at:2}}]}};
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const sync=createSync({{
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captures:{{exportOwned:async()=>drafts,mergeRemote:async()=>0,discard:async()=>true}},
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storage:{{getItem:()=>null,setItem:()=>{{}}}},
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fetchJson:async(_url,init)=>{{calls++;if(!init)return {{revision:1,drafts:[]}};const error=new Error('conflict');error.status=409;error.payload={{detail:{{snapshot:conflict}}}};throw error}},
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onState:state=>states.push(state),
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}});
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(async()=>{{let message='';try{{await sync.sync('timmy')}}catch(error){{message=error.message}}process.stdout.write(JSON.stringify({{calls,states,message,drafts}}))}})();
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"""
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output = run_node(script)
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assert output["calls"] == 2
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assert output["states"][-1]["status"] == "conflict"
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assert output["states"][-1]["message"] == "Drafts changed on another device. Sync again to combine them."
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assert output["drafts"][0]["id"] == "local"
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def test_unfiled_draft_sync_coalesces_overlapping_reconnects_without_self_conflict():
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script = f"""
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const createSync=require({json.dumps(str(SYNC))});
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let remote={{revision:0,drafts:[]}}, gets=0, puts=0, release;
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const gate=new Promise(resolve=>release=resolve);
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const api=async(_url,init)=>{{
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if(!init){{gets++;if(gets===1)await gate;return JSON.parse(JSON.stringify(remote))}}
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puts++;const body=JSON.parse(init.body);
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if(body.revision!==remote.revision){{const error=new Error('conflict');error.status=409;error.payload={{detail:{{snapshot:remote}}}};throw error}}
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remote={{revision:remote.revision+1,drafts:body.drafts}};return remote;
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}};
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const draft={{id:'local',title:'Local',body:'',saved_at:1}};
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const sync=createSync({{
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captures:{{exportOwned:async()=>[draft],mergeRemote:async()=>0,discard:async()=>true}},
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storage:{{getItem:()=>null,setItem:()=>{{}}}},fetchJson:api,
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}});
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(async()=>{{const first=sync.sync('timmy'),second=sync.sync('timmy');release();const results=await Promise.all([first,second]);process.stdout.write(JSON.stringify({{gets,puts,results,remote}}))}})();
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"""
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output = run_node(script)
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assert output["puts"] == 1
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assert output["remote"]["drafts"][0]["id"] == "local"
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assert output["results"] == [True, True]
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