lernie 0.1.23

lernie: the operator seat — the window and wire client for a yog server
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135

//! The seventh question: the config pane's lineage listing and its file read —
//! and the file read that addresses a CHANNEL rather than a workspace.
//!
//! A module of its own for [`super::login`]'s reason, and it carries the one
//! beat no other pass has: three of the five config destinations name no
//! workspace at all, so the read is asked down the aimed channel by name
//! instead of being routed by an address it does not have.

use super::super::tick;
use super::asking;
use crate::test_support::Scratch;
use crate::test_support::wire::{entry, wired};
use crate::ui::{Aim, Channel, Chunk, Model};
use crate::verbs::Where;
use serde_json::{Value, json};

/// The seated model aimed at an ENTRY's wall, with nothing provisioned at the
/// flat root — so a gesture that fell through to this box's own engine would
/// reach nothing, which is what makes the channel-addressed read visible.
fn aimed_at_an_entry() -> Model {
    let held = Channel {
        name: "b".to_owned(),
        named_there: Some("b".to_owned()),
        dials: None,
    };
    Model {
        roster: vec![Chunk::of(held.clone())],
        aim: Some(Aim {
            channel: held.name,
            address: "b".to_owned(),
        }),
        ..Model::default()
    }
}

/// Every op one pass asked, in order.
fn asked(engine: &crate::test_support::engine::Engine) -> Vec<String> {
    engine
        .heard()
        .iter()
        .filter_map(|said| said.get("op").and_then(Value::as_str))
        .map(str::to_owned)
        .collect()
}

/// **The lineage listing stands on the pane and the file read stands on the
/// destination** — the login pane's rule with one more rung: a pane open on no
/// file asks for the listing alone, because there is nothing to read yet.
#[test]
fn the_listing_stands_on_the_pane_and_the_file_read_on_the_destination() {
    let scratch = Scratch::new();
    let engine = wired(
        &scratch,
        &entry("b"),
        vec![
            vec![json!({"ok": true, "kind": "workspaces", "rows": []})],
            vec![json!({"ok": true, "kind": "conversations", "rows": []})],
            vec![json!({"ok": true, "kind": "workspaces", "rows": []})],
            vec![json!({"ok": true, "kind": "conversations", "rows": []})],
            vec![json!({"ok": true, "kind": "lineages", "rows": []})],
            vec![json!({"ok": true, "kind": "workspaces", "rows": []})],
            vec![json!({"ok": true, "kind": "conversations", "rows": []})],
            vec![json!({"ok": true, "kind": "lineages", "rows": []})],
            vec![json!({"ok": true, "kind": "config", "text": "x", "settings": []})],
        ],
    );
    let mut model = aimed_at_an_entry();
    let link = asking(&model);
    tick(&link, scratch.path());
    model.begin_configuring();
    link.settle(&mut model);
    tick(&link, scratch.path());
    assert_eq!(
        asked(&engine),
        vec![
            "workspaces",
            "conversations",
            "workspaces",
            "conversations",
            "lineages"
        ],
        "the listing stands on the pane, and no file has been picked"
    );
    model.read_config(&Where::Brazen {
        workspace: "b".to_owned(),
    });
    link.settle(&mut model);
    tick(&link, scratch.path());
    assert_eq!(asked(&engine).last().map(String::as_str), Some("config"));
    link.settle(&mut model);
    assert_eq!(
        model.config.map(|held| held.text),
        Some("x".to_owned()),
        "the answer is filed"
    );
    assert_eq!(model.lineages, Some(Vec::new()));
}

/// **A destination that names no workspace addresses the CHANNEL** (DESIGN
/// §4.30). Nothing is provisioned at the flat root here, so a gesture routed by
/// its absent address would have reached nothing at all; it reaches the entry
/// the window is aimed at, which is the one this pane is about.
#[test]
fn a_destination_naming_no_workspace_is_asked_down_the_aimed_channel() {
    let scratch = Scratch::new();
    let engine = wired(
        &scratch,
        &entry("b"),
        vec![
            vec![json!({"ok": true, "kind": "workspaces", "rows": []})],
            vec![json!({"ok": true, "kind": "conversations", "rows": []})],
            vec![json!({"ok": true, "kind": "lineages", "rows": []})],
            vec![json!({"ok": true, "kind": "config", "text": "cadence:\n", "settings": []})],
        ],
    );
    let mut model = aimed_at_an_entry();
    model.begin_configuring();
    model.read_config(&Where::Cadence);
    let link = asking(&model);
    tick(&link, scratch.path());
    assert_eq!(
        asked(&engine),
        vec!["workspaces", "conversations", "lineages", "config"],
        "the engine the window is aimed at answered it"
    );
    link.settle(&mut model);
    assert_eq!(
        model.config.map(|held| held.text),
        Some("cadence:\n".to_owned())
    );
    assert_eq!(
        model.notice, None,
        "and nothing fell through to a flat root"
    );
}