path: root/tests/test_config.py

#!/usr/bin/env python3
"""M6: the config file (D2).

Everything here was a compiled-in constant until now. The important property
is not that settings apply — it is that a broken config costs a warning and
never a terminal.
"""

import os
import pathlib
import re
import subprocess
import sys
import tempfile
import time

from harness import BIN, Session, check, report

SH = ["/bin/sh", "-c", 'printf "\\033]2;cfg\\007"; stty raw -echo; cat']


def hover(s, x, y):
    s.send(rf"\e[<35;{x + 1};{y + 1}M")


def cfg(text):
    f = tempfile.NamedTemporaryFile("w", suffix=".kdl", delete=False)
    f.write(text)
    f.close()
    return f.name


def test_geometry():
    path = cfg("""
        gap 2
        gap_aspect 1
        rounded false
        title_align "left"
    """)
    with Session(SH, cols=60, rows=14, config=path) as s:
        s.settle()
        snap, p = s.snapshot(), s.pane()
        check("gap is applied", p["x"] == 2 and p["y"] == 3, str(p))
        row = snap.line(p["y"])
        check(
            "rounded false gives square corners",
            "┌" in row and "╭" not in row,
            repr(row),
        )
        check(
            "title_align left puts the title at the left",
            row.index("cfg") < len(row) // 3,
            repr(row),
        )
    os.unlink(path)


def insets(pane):
    """A pane's content rect as four insets from its frame: top, right, bottom,
    left. What `padding` is actually about, and the only way to see it is to
    measure both rects."""
    return (
        pane["content_y"] - pane["y"],
        (pane["x"] + pane["w"]) - (pane["content_x"] + pane["content_w"]),
        (pane["y"] + pane["h"]) - (pane["content_y"] + pane["content_h"]),
        pane["content_x"] - pane["x"],
    )


def pad_insets(text, cols=60, rows=16):
    path = cfg(text)
    with Session(SH, cols=cols, rows=rows, config=path) as s:
        s.settle()
        got = insets(s.pane())
    os.unlink(path)
    return got


def test_padding_takes_one_two_or_four_values():
    """One for every side, two for vertical and horizontal, four in CSS order.
    A number means the same thing however many of them were written, which is
    why all three of these are the same padding."""
    check(
        "no padding is just the border",
        pad_insets("padding 0\n") == (1, 1, 1, 1),
        str(pad_insets("padding 0\n")),
    )

    one = pad_insets("padding 1\n")
    check("one value pads every side", one == (2, 3, 2, 3), str(one))
    check(
        "...and two equal values say the same thing",
        pad_insets("padding 1 1\n") == one,
        str(pad_insets("padding 1 1\n")),
    )
    check(
        "...as do four",
        pad_insets("padding 1 1 1 1\n") == one,
        str(pad_insets("padding 1 1 1 1\n")),
    )

    # Horizontal padding is aspect-corrected, like the gap: the numbers are rows,
    # so a ring that looks square is one number rather than arithmetic.
    two = pad_insets("padding 0 2\n")
    check("two values are vertical then horizontal", two == (1, 5, 1, 5), str(two))
    check(
        "and gap_aspect 1 makes the units plain cells",
        pad_insets("gap_aspect 1\npadding 0 2\n") == (1, 3, 1, 3),
        str(pad_insets("gap_aspect 1\npadding 0 2\n")),
    )

    four = pad_insets("padding 2 0 0 1\n")
    check("four values are top right bottom left", four == (3, 1, 1, 3), str(four))


def test_a_padding_nobody_can_read_is_refused():
    """Three values is CSS for top/horizontal/bottom, which a reader has to look
    up -- so it is refused rather than guessed at, and the rest of the file still
    applies."""
    path = cfg("padding 1 2 3\ngap 2\n")
    with Session(SH, cols=60, rows=16, config=path) as s:
        s.settle()
        check(
            "the padding was not applied",
            insets(s.pane()) == (1, 1, 1, 1),
            str(insets(s.pane())),
        )
        check("but the rest of the file was", s.pane()["y"] == 3, str(s.pane()))
        reply = s.api("reload")
        check(
            "and it says what it wanted",
            "padding takes 1, 2 or 4" in reply.get("warning", ""),
            str(reply),
        )
    os.unlink(path)


def test_status_bar_off():
    path = cfg("status_bar false\n")
    with Session(SH, cols=50, rows=10, config=path) as s:
        s.settle()
        snap, p = s.snapshot(), s.pane()
        check(
            "no status bar means no strip row",
            "panes" not in snap.screen(),
            repr(snap.line(1)),
        )
        check("and the panes get the row back", p["y"] == 1, str(p))
    os.unlink(path)


def test_theme():
    path = cfg("""
        theme {
            frame_focus "#00ff00"
            frame_idle "#333333"
        }
    """)
    with Session(SH, cols=76, rows=14, config=path) as s:
        s.settle()
        p = s.pane()
        run = s.snapshot().style_at(p["x"], p["y"])
        check(
            "the focused frame takes the configured colour",
            run and run["fg"] == "#00ff00",
            str(run),
        )

        s.key("\\\\")
        s.settle()
        panes = s.panes()
        snap = s.snapshot()
        idle = [q for q in panes if not q["focused"]][0]
        run = snap.style_at(idle["x"], idle["y"])
        check(
            "an unfocused frame takes the other one",
            run and run["fg"] == "#333333",
            str(run),
        )
    os.unlink(path)


def test_keys():
    path = cfg("""
        keys {
            prefix "ctrl+b"
            bind "v" "split-cols"
            bind "\\\\" "none"
        }
    """)
    with Session(SH, cols=80, rows=16, config=path) as s:
        s.settle()
        s.send(r"\x02v")  # C-b v
        s.settle()
        check(
            "a custom prefix and binding work", len(s.panes()) == 2, str(len(s.panes()))
        )

        s.send("\\x02\\\\")  # C-b \  -> unbound now
        s.settle()
        check(
            "a binding set to none does nothing",
            len(s.panes()) == 2,
            str(len(s.panes())),
        )

        s.send(r"\x01")  # the old prefix is just a keystroke now
        s.settle()
        check(
            "the old prefix is passed through to the pane",
            len(s.panes()) == 2 and s.api("alive")["alive"],
        )

        s.send(r"\x02\x02")  # prefix twice is still a literal prefix
        s.settle()
        check("prefix twice sends the prefix itself", s.api("alive")["alive"])
    os.unlink(path)


def test_a_chord_can_be_written_the_way_the_cheatsheet_prints_it():
    """The sheet's whole claim is that what it shows is what you would write, and
    `--dump-config` wrote in that notation for months while the parser refused
    it. Both spellings are accepted now: `C-a` and `ctrl+a`, `S-tab` and
    `shift+tab`, `?` and `shift+slash`, `H` and `shift+h`, `←` and `left`."""
    path = cfg("""
        keys {
            prefix "C-b"
            bind "?" "split-cols"
            bind "S-tab" "split-rows"
            bind "→" "close-pane"
        }
    """)
    # Tall and wide enough for a column split and then a row split inside it:
    # min_split is a real floor and a refused split would look like a refused
    # binding.
    with Session(SH, cols=100, rows=30, config=path) as s:
        s.settle()
        # `?` is shift+slash, which is what the key says on the keyboard.
        s.send(r"\x02?")
        s.settle()
        check("`?` binds the key you press", len(s.panes()) == 2, str(len(s.panes())))

        s.send(r"\x02\e[Z")  # C-b shift+tab
        s.settle()
        check("`S-tab` is shift+tab", len(s.panes()) == 3, str(len(s.panes())))

        s.send(r"\x02\e[C")  # C-b right arrow
        s.settle()
        check("an arrow glyph is that arrow", len(s.panes()) == 2, str(len(s.panes())))
    os.unlink(path)

    # A capital letter is that letter with shift, not that letter: the sheet
    # prints shift+h as "H" for exactly the reason a config should be able to.
    path = cfg('keys {\n    bind "H" "split-cols"\n}\n')
    with Session(SH, cols=100, rows=30, config=path) as s:
        s.settle()
        s.send(r"\x01h")  # plain h still moves focus, it does not split
        s.settle()
        check("a plain letter is left alone", len(s.panes()) == 1, str(len(s.panes())))
        s.send(r"\x01H")
        s.settle()
        check(
            "and the capital is the shifted one",
            len(s.panes()) == 2,
            str(len(s.panes())),
        )
    os.unlink(path)


def test_min_pane_drives_collapse():
    # Split over the control API rather than the keyboard. This is about what
    # the *layout* does with a split that does not fit, and the keyboard now
    # declines to make one — which is a different rule, tested elsewhere. A
    # script asking for a pane is declaring what it wants, so it still gets it.
    roomy = cfg("min_pane cols=10 rows=3\n")
    tight = cfg("min_pane cols=40 rows=12\n")
    with Session(SH, cols=70, rows=16, config=roomy) as s:
        s.settle()
        s.api("split", dir="cols")
        s.settle()
        check(
            "a low floor keeps both panes visible",
            not any(p["hidden"] for p in s.panes()),
            str(s.panes()),
        )
    with Session(SH, cols=70, rows=16, config=tight) as s:
        s.settle()
        s.api("split", dir="cols")
        s.settle()
        check(
            "a high floor collapses the same split",
            any(p["hidden"] for p in s.panes()),
            str(s.panes()),
        )
    os.unlink(roomy)
    os.unlink(tight)


def test_fail_open():
    """A broken config must cost a warning, never a terminal."""
    broken = cfg('gap 1\ntheme {\n  frame_focus "#00ff00"\n')  # unclosed block
    with Session(SH, cols=60, rows=14, config=broken) as s:
        s.settle()
        check("a session still starts on a broken config", s.api("alive")["alive"], "")
        p = s.pane()
        check("and uses the compiled-in defaults", p["x"] == 2 and p["y"] == 2, str(p))
    proc = subprocess.run(
        [BIN, "--headless", "--cols", "20", "--rows", "3", "--", "/bin/echo", "hi"],
        capture_output=True,
        text=True,
        env=dict(os.environ, SLOSH_CONFIG=broken),
    )
    check(
        "the reason is reported on stderr",
        "line" in proc.stderr or "parse" in proc.stderr,
        repr(proc.stderr),
    )
    check("but the run succeeds", proc.returncode == 0, proc.stderr)
    os.unlink(broken)

    partial = cfg("""
        gap 3
        keys { bind "v" "no-such-action" }
    """)
    with Session(SH, cols=60, rows=14, config=partial) as s:
        s.settle()
        # gap 3, aspect 2 (default) -> 6 columns of margin
        check(
            "a bad binding does not discard the rest of the file",
            s.pane()["x"] == 6,
            str(s.pane()),
        )
    os.unlink(partial)

    missing = "/nonexistent/definitely/not/here.kdl"
    proc = subprocess.run(
        [BIN, "--headless", "--cols", "20", "--rows", "3", "--", "/bin/echo", "hi"],
        capture_output=True,
        text=True,
        env=dict(os.environ, SLOSH_CONFIG=missing),
    )
    check("a missing config is silent", proc.stderr == "", repr(proc.stderr))


def test_reload():
    path = cfg("gap 1\n")
    with Session(SH, cols=60, rows=14, config=path) as s:
        s.settle()
        check("before reload", s.pane()["x"] == 2, str(s.pane()))
        with open(path, "w") as f:
            f.write("gap 3\n")
        r = s.api("reload")
        s.settle()
        check(
            "reload applies the new file",
            r["ok"] and s.pane()["x"] == 6,
            f"{r} {s.pane()}",
        )

        with open(path, "w") as f:
            f.write("gap 5\ntheme {\n")  # broken
        r = s.api("reload")
        s.settle()
        check("a broken reload is refused", not r["ok"], str(r))
        check("and the working config is kept", s.pane()["x"] == 6, str(s.pane()))
    os.unlink(path)


def test_status_line_reserves_a_row_at_the_bottom():
    on = cfg("")
    off = cfg("status_line false\n")
    heights = {}
    for name, path in (("on", on), ("off", off)):
        with Session(SH, cols=50, rows=12, config=path) as s:
            s.settle()
            heights[name] = s.pane()["h"]
    check(
        "turning the status line off gives the row back to the panes",
        heights["off"] == heights["on"] + 1,
        str(heights),
    )
    os.unlink(on)
    os.unlink(off)


def test_status_line_says_what_you_are_looking_at():
    lay = tempfile.NamedTemporaryFile("w", suffix=".kdl", delete=False)
    lay.write(
        'layout {\n tab name="api" purpose="project:api.a1" {\n'
        '  pane purpose="agent:main"\n'
        '  pane suspended=true command="top"\n }\n}\n'
    )
    lay.close()
    with Session(SH, cols=90, rows=18, layout=lay.name) as s:
        s.settle(20)
        bottom = s.snapshot().text[-2]
        check(
            "it names the tab and the focused pane",
            "api" in bottom and "agent:main" in bottom,
            repr(bottom),
        )
        # The bottom carries a count too, but it is this tab's rather than the
        # session's (see test_the_two_pane_counts_answer_different_questions).
        # What it must not do is restate the strip itself.
        check(
            "and is not a second copy of the tab strip",
            "pane 1/2" in bottom and "1:api" not in bottom,
            repr(bottom),
        )

        ids = [p["id"] for p in s.panes()]
        s.api("focus", id=ids[1])
        s.settle(20)
        check(
            "a pane that has not started says so",
            "not started" in s.snapshot().text[-2],
            repr(s.snapshot().text[-2]),
        )
    os.unlink(lay.name)


def test_status_line_reports_scrollback():
    noisy = [
        "/bin/sh",
        "-c",
        'printf "\\033]2;p\\007"; i=0; while [ $i -lt 200 ]; do '
        'echo "line $i"; i=$((i+1)); done; stty raw -echo; cat',
    ]
    with Session(noisy, cols=90, rows=18) as s:
        s.settle(30)
        check(
            "nothing is said while you are in the present",
            "scrolled" not in s.snapshot().text[-2],
            repr(s.snapshot().text[-2]),
        )
        p = s.pane()
        for _ in range(6):
            s.send(rf"\e[<64;{p['content_x'] + 2};{p['content_y'] + 2}M")
        s.settle(30)
        check(
            "looking at the past is said out loud",
            "scrolled" in s.snapshot().text[-2],
            repr(s.snapshot().text[-2]),
        )


def test_the_two_pane_counts_answer_different_questions():
    """The strip above counts the session. The line below says which of this
    tab's panes you are in, which is the question you actually have once a tab
    has collapsed into a list and only one of them is open."""
    lay = tempfile.NamedTemporaryFile("w", suffix=".kdl", delete=False)
    lay.write(
        'layout {\n tab name="api" {\n  pane\n  pane\n }\n'
        ' tab name="notes" {\n  pane\n }\n}\n'
    )
    lay.close()
    with Session(SH, cols=80, rows=16, layout=lay.name) as s:
        s.settle(20)
        top, bottom = s.snapshot().line(1), s.snapshot().text[-2]
        check("the strip counts every pane in the session", "3 panes" in top, repr(top))
        check(
            "the line says which of this tab's panes is open",
            "pane 1/2" in bottom,
            repr(bottom),
        )

        ids = [p["id"] for p in s.panes() if p["tab"] == 1]
        s.api("focus", id=ids[1])
        s.settle(20)
        check(
            "the index moves with the focus",
            "pane 2/2" in s.snapshot().text[-2],
            repr(s.snapshot().text[-2]),
        )
        check(
            "while the session count does not",
            "3 panes" in s.snapshot().line(1),
            repr(s.snapshot().line(1)),
        )

        tabs = s.tabs()
        s.api("select-tab", id=tabs[1]["id"])
        s.settle(20)
        top, bottom = s.snapshot().line(1), s.snapshot().text[-2]
        check("a one-pane tab says so", "pane 1/1" in bottom, repr(bottom))
        check(
            "and the session count still counts the session",
            "3 panes" in top,
            repr(top),
        )

        s.api("split", dir="cols")
        s.settle(20)
        check(
            "splitting moves both numbers, each in its own way",
            "pane 2/2" in s.snapshot().text[-2] and "4 panes" in s.snapshot().line(1),
            repr(s.snapshot().text[-2]) + " / " + repr(s.snapshot().line(1)),
        )
    os.unlink(lay.name)


def test_status_pad_holds_both_bars_off_the_edge():
    lay = tempfile.NamedTemporaryFile("w", suffix=".kdl", delete=False)
    lay.write('layout {\n tab name="api" {\n  pane\n }\n}\n')
    lay.close()
    seen = {}
    for pad in (2, 8):
        path = cfg(f"status_pad {pad}\n")
        with Session(SH, cols=80, rows=16, config=path, layout=lay.name) as s:
            s.settle(20)
            top, bottom = s.snapshot().line(1), s.snapshot().text[-2]
            seen[pad] = (
                len(top) - len(top.lstrip()),
                len(top.rstrip()),
                len(bottom) - len(bottom.lstrip()),
                len(bottom.rstrip()),
            )
        os.unlink(path)
    check(
        "a bigger pad indents the strip further from the left",
        seen[8][0] == seen[2][0] + 6,
        str(seen),
    )
    check("and holds it further off the right", seen[8][1] == seen[2][1] - 6, str(seen))
    check(
        "the line below is padded the same on the left",
        seen[8][2] == seen[2][2] + 6,
        str(seen),
    )
    check("and on the right", seen[8][3] == seen[2][3] - 6, str(seen))
    os.unlink(lay.name)


def test_every_surface_has_its_own_theme_name():
    """The point of splitting six names into thirty-five: recolouring one
    surface must not recolour another that happened to share an entry."""
    conf = cfg(
        "theme {\n"
        '  guide "#00ff00"\n'
        '  tab_active_bg "#0000ff"\n'
        '  status "#ff8800"\n'
        '  header "#ff00ff"\n'
        "}\n"
    )
    with Session(SH, cols=80, rows=16, config=conf) as s:
        s.settle(20)
        snap = s.snapshot()

        tab = [h for h in snap.hits if h["action"].startswith("tab:")][0]
        check(
            "tab_active_bg fills the tab you are in",
            (snap.style_at(tab["x"] + 1, tab["y"]) or {}).get("bg") == "#0000ff",
            str(snap.style_at(tab["x"] + 1, tab["y"])),
        )
        check(
            "status colours the bottom line",
            (snap.style_at(4, snap.rows - 2) or {}).get("fg") == "#ff8800",
            str(snap.style_at(4, snap.rows - 2)),
        )

        # ...and the frame, which shares a *default* with guide, did not move.
        p = s.pane()
        check(
            "the focused frame keeps its own colour",
            (snap.style_at(p["x"], p["y"] + 1) or {}).get("fg") == "#7aa2f7",
            str(snap.style_at(p["x"], p["y"] + 1)),
        )

        # The guide is the one that used to be the same entry as the frame.
        hover(s, p["x"], p["y"] + 3)
        time.sleep(0.35)
        s.settle(40)
        snap = s.snapshot()
        check(
            "and the split guide takes the colour named for it",
            (snap.style_at(p["x"], p["y"] + 3) or {}).get("fg") == "#00ff00",
            str(snap.style_at(p["x"], p["y"] + 3)),
        )
    os.unlink(conf)


def test_an_unknown_theme_name_is_refused_not_ignored():
    conf = cfg('theme {\n  frame_focus "not-a-colour"\n}\n')
    with Session(SH, cols=60, rows=12, config=conf) as s:
        s.settle(20)
        check("a bad colour costs a warning, not a terminal", s.alive(), "")
        p = s.pane()
        check(
            "and the compiled-in default is kept",
            (s.snapshot().style_at(p["x"], p["y"] + 1) or {}).get("fg") == "#7aa2f7",
            str(s.snapshot().style_at(p["x"], p["y"] + 1)),
        )
    os.unlink(conf)


def test_a_setting_nobody_knows_is_said_out_loud():
    """The loader reads a document by asking for the keys it knows, which means a
    key it does *not* know was invisible: a mistyped setting did nothing quietly,
    and a whole file of the wrong shape passed as ok."""
    path = cfg("gap 2\nwobble 3\n")
    out = subprocess.run([BIN, "--check", path], capture_output=True, text=True)
    said = out.stderr + out.stdout
    check(
        "it names the setting it does not know",
        "unknown setting: wobble" in said,
        repr(said),
    )
    check("and the line it is on", ":2:" in said, repr(said))
    check("and exits non-zero", out.returncode == 1, str(out.returncode))
    os.unlink(path)


def test_the_two_documents_are_told_apart():
    """A config and a layout share a syntax -- one parser reads both -- so each
    loader has to say which document it was handed, and both answers come from the
    same list of settings so they cannot disagree. `--check` goes one better than
    saying so: it holds the file to whichever schema it turned out to be."""
    lay = cfg('layout {\n  tab name="x" { pane }\n}\n')
    out = subprocess.run([BIN, "--check", lay], capture_output=True, text=True)
    said = out.stderr + out.stdout
    check(
        "a layout handed to --check is checked as a layout",
        "ok, a layout" in said,
        repr(said),
    )
    check("...and a clean one exits zero", out.returncode == 0, str(out.returncode))

    # Held to the layout schema, not the config one: the proof is that it names a
    # property only the layout loader has ever heard of.
    typo = cfg('layout {\n  tab name="x" { pane cmd="htop" }\n}\n')
    out1 = subprocess.run([BIN, "--check", typo], capture_output=True, text=True)
    said1 = out1.stderr + out1.stdout
    check(
        "a mistyped pane property is named",
        "unknown pane property: cmd" in said1,
        repr(said1),
    )
    check("and the line it is on", ":2:" in said1, repr(said1))
    check("and it exits non-zero", out1.returncode == 1, str(out1.returncode))

    conf = cfg('gap 2\ntheme { frame_focus "#00ff88" }\n')
    out2 = subprocess.run(
        [
            BIN,
            "--script",
            "--cols",
            "40",
            "--rows",
            "8",
            "--layout",
            conf,
            "--",
            "/bin/sh",
            "-c",
            "read x",
        ],
        input="quit\n",
        capture_output=True,
        text=True,
    )
    said2 = out2.stderr + out2.stdout
    check(
        "a config handed to --layout says it is a config",
        "this is a config, not a layout" in said2,
        repr(said2),
    )
    check(
        "...and names the setting that gave it away",
        "`gap` is a setting" in said2,
        repr(said2),
    )

    # A layout whose own tabs are misspelled is a different mistake, and keeps its
    # own message rather than being told it is a config.
    broken = cfg('layout {\n  tabb name="x" { pane }\n}\n')
    out3 = subprocess.run(
        [
            BIN,
            "--script",
            "--cols",
            "40",
            "--rows",
            "8",
            "--layout",
            broken,
            "--",
            "/bin/sh",
            "-c",
            "read x",
        ],
        input="quit\n",
        capture_output=True,
        text=True,
    )
    check(
        "a layout with no tabs still says that",
        "layout declares no tabs" in (out3.stderr + out3.stdout),
        repr(out3.stderr[:120]),
    )
    for p in (lay, typo, conf, broken):
        os.unlink(p)


def test_the_shipped_files_are_what_they_claim():
    """The example layout is a layout and the reference config is a config, checked
    by the program rather than by their names."""
    root = pathlib.Path(__file__).resolve().parent.parent
    conf = subprocess.run(
        [BIN, "--check", str(root / "config" / "config.kdl")],
        capture_output=True,
        text=True,
    )
    check(
        "config/config.kdl lints clean", conf.returncode == 0, repr(conf.stderr[:160])
    )
    lay = root / "config" / "example.layout"
    check("the example layout is named `*.layout`", lay.exists(), str(lay))
    exl = subprocess.run([BIN, "--check", str(lay)], capture_output=True, text=True)
    check("and it lints clean as a layout", exl.returncode == 0, repr(exl.stderr[:200]))
    out = subprocess.run(
        [
            BIN,
            "--script",
            "--cols",
            "60",
            "--rows",
            "12",
            "--layout",
            str(lay),
            "--",
            "/bin/sh",
            "-c",
            "read x",
        ],
        input="tabs\nquit\n",
        capture_output=True,
        text=True,
    )
    check(
        "and it loads as one",
        '"tabs"' in out.stdout or "api" in out.stdout,
        repr(out.stdout[:160]) + repr(out.stderr[:120]),
    )


def test_the_known_settings_list_cannot_go_stale():
    """`KNOWN_TOP` is what "unknown setting" is measured against, so a setting added
    to the loader and not to that list would be reported as unknown -- which is the
    same silent-ish wrongness one step along."""
    src = (
        pathlib.Path(__file__).resolve().parent.parent / "src" / "config.c"
    ).read_text()
    asked = set(re.findall(r'kdl_child\(root, "([a-z_]+)"\)', src))
    listed = set(
        re.findall(r'^    "([a-z_]+)",', src[src.index("KNOWN_TOP[] = {") :], re.M)
    )
    check(
        "every setting the loader reads is in KNOWN_TOP",
        asked <= listed,
        "missing: %s" % sorted(asked - listed),
    )
    check("and the list was actually found", len(listed) > 20, str(len(listed)))


if __name__ == "__main__":
    test_geometry()
    test_status_bar_off()
    test_padding_takes_one_two_or_four_values()
    test_a_padding_nobody_can_read_is_refused()
    test_a_chord_can_be_written_the_way_the_cheatsheet_prints_it()
    test_theme()
    test_keys()
    test_min_pane_drives_collapse()
    test_fail_open()
    test_reload()
    test_status_line_reserves_a_row_at_the_bottom()
    test_status_line_says_what_you_are_looking_at()
    test_status_line_reports_scrollback()
    test_the_two_pane_counts_answer_different_questions()
    test_status_pad_holds_both_bars_off_the_edge()
    test_every_surface_has_its_own_theme_name()
    test_an_unknown_theme_name_is_refused_not_ignored()
    test_a_setting_nobody_knows_is_said_out_loud()
    test_the_two_documents_are_told_apart()
    test_the_shipped_files_are_what_they_claim()
    test_the_known_settings_list_cannot_go_stale()
    sys.exit(report())