| The chat screen, in Nim 87a28cc nandi 19h ago | 1 | ## Tallies, pills, and the rules about who may rewrite what. |
| 2 | |
| 3 | import std/[sequtils, tables, unittest] |
| 4 | import frq/[model, reactions, edits] |
| 5 | |
| 6 | suite "parseTally": |
| 7 | test "the server's wire form": |
| 8 | let t = parseTally("👍:alice,bob;🎉:carol") |
| 9 | check t.len == 2 |
| 10 | check t[0].emoji == "👍" |
| 11 | check t[0].nicks == @["alice", "bob"] |
| 12 | check t[1].nicks == @["carol"] |
| 13 | |
| 14 | test "order is kept, because it is the order the pills are drawn in": |
| 15 | check parseTally("a:1;b:2;c:3").mapIt(it.emoji) == @["a", "b", "c"] |
| 16 | |
| 17 | test "an empty tally is no pills": |
| 18 | check parseTally("").len == 0 |
| 19 | |
| 20 | test "a malformed part is skipped rather than fatal": |
| 21 | check parseTally("👍:alice;garbage;:bob;🎉:").mapIt(it.emoji) == @["👍"] |
| 22 | |
| 23 | suite "withReaction": |
| 24 | setup: |
| 25 | let base = @[Reaction(emoji: "👍", nicks: @["alice"])] |
| 26 | |
| 27 | test "adding a nick": |
| 28 | check base.withReaction("👍", "bob", true)[0].nicks == @["alice", "bob"] |
| 29 | |
| 30 | test "adding an emoji nobody had yet": |
| 31 | let got = base.withReaction("🎉", "bob", true) |
| 32 | check got.len == 2 |
| 33 | check got[1].emoji == "🎉" |
| 34 | |
| 35 | test "the same nick twice does not double it": |
| 36 | check base.withReaction("👍", "alice", true)[0].nicks == @["alice"] |
| 37 | |
| 38 | test "removing the last nick removes the pill": |
| 39 | # An empty pill is a pill that says nothing. |
| 40 | check base.withReaction("👍", "alice", false).len == 0 |
| 41 | |
| 42 | test "removing one of several leaves the rest": |
| 43 | let two = base.withReaction("👍", "bob", true) |
| 44 | check two.withReaction("👍", "alice", false)[0].nicks == @["bob"] |
| 45 | |
| 46 | test "removing a nick that is not there changes nothing": |
| 47 | check base.withReaction("👍", "zoe", false)[0].nicks == @["alice"] |
| 48 | |
| 49 | suite "mine": |
| 50 | setup: |
| 51 | let m = Message(reactions: @[Reaction(emoji: "👍", nicks: @["alice"])]) |
| 52 | test "on it": |
| 53 | check m.mine("👍", "alice") |
| 54 | test "not on it": |
| 55 | check not m.mine("👍", "bob") |
| 56 | test "an emoji with no pill at all": |
| 57 | check not m.mine("🎉", "alice") |
| 58 | |
| 59 | suite "updateReaction": |
| 60 | setup: |
| 61 | var rooms = initOrderedTable[string, Room]() |
| 62 | var r = initRoom("#test") |
| 63 | r.messages = @[Message(id: "1", text: "hi"), |
| 64 | Message(id: "2", text: "there", editIds: @["2b"])] |
| 65 | rooms["#test"] = r |
| 66 | |
| 67 | test "lands on the message it names": |
| 68 | rooms.updateReaction("#test", "1", "👍", "alice", true) |
| 69 | check rooms["#test"].messages[0].countOf("👍") == 1 |
| 70 | check rooms["#test"].messages[1].countOf("👍") == 0 |
| 71 | |
| 72 | test "finds a line by a name a revision of it wore": |
| 73 | # Somebody reacting to an already-rewritten line names the revision. |
| 74 | rooms.updateReaction("#test", "2b", "🎉", "bob", true) |
| 75 | check rooms["#test"].messages[1].countOf("🎉") == 1 |
| 76 | |
| 77 | test "a reaction on a line we do not hold does nothing": |
| 78 | rooms.updateReaction("#test", "999", "👍", "alice", true) |
| 79 | check rooms["#test"].messages.allIt(it.reactions.len == 0) |
| 80 | |
| 81 | test "a room we do not hold does nothing": |
| 82 | rooms.updateReaction("#gone", "1", "👍", "alice", true) |
| 83 | check rooms["#test"].messages[0].reactions.len == 0 |
| 84 | |
| 85 | suite "applyEdit": |
| 86 | setup: |
| 87 | var rooms = initOrderedTable[string, Room]() |
| 88 | var r = initRoom("#test") |
| 89 | r.messages = @[Message(id: "1", frm: "alice", text: "orignal")] |
| 90 | rooms["#test"] = r |
| 91 | |
| 92 | test "the sender may rewrite their own line": |
| 93 | check rooms.applyEdit("#test", "1", "alice", "original", "rev1") == erApplied |
| 94 | check rooms["#test"].messages[0].text == "original" |
| 95 | check rooms["#test"].messages[0].edited |
| 96 | |
| 97 | test "the revision joins the names the line answers to": |
| 98 | # So a reply naming the revision still finds the line it belongs to. |
| 99 | discard rooms.applyEdit("#test", "1", "alice", "original", "rev1") |
| 100 | check rooms["#test"].messages[0].answersTo("rev1") |
| 101 | |
| 102 | test "nobody else may": |
| 103 | # A client that believed the wire alone would let a hostile relay put |
| 104 | # words in somebody else's mouth. |
| 105 | check rooms.applyEdit("#test", "1", "mallory", "nonsense", "r") == erRefused |
| 106 | check rooms["#test"].messages[0].text == "orignal" |
| 107 | |
| 108 | test "case does not decide authorship": |
| 109 | check rooms.applyEdit("#test", "1", "ALICE", "original", "r") == erApplied |
| 110 | |
| 111 | test "an edit of a line we do not hold is absent, not applied": |
| 112 | check rooms.applyEdit("#test", "999", "alice", "x", "r") == erAbsent |
| 113 | check rooms.applyEdit("#gone", "1", "alice", "x", "r") == erAbsent |