# Things a person still has to check

Automated tests cover what they can reach. This file is the rest: the checks that need a real window, a
real network, a real remote host, or a real Explorer — and the reasons each one is out of reach.

Three constraints put things on this list, and they are worth knowing before adding to it:

- **`MainWindow` cannot be laid out by a test.** WebView2's adapter refuses the headless dispatcher's MTA
  thread — see `LayoutHarnessTests.WhyTheWindowItselfIsNeverShown`. Anything that has to be measured lives
  on a `UserControl` instead, and what is left in the window is unmeasured by construction.
- **Headless Avalonia has no native window.** So nothing about Win32 focus, about the WebView collapsing,
  or about a drag that crosses into another application can be asserted. A headless test of any of those
  would pass and confirm the wrong belief.
- **No network, no container, no remote host** in the ordinary suite. The SSH suites that do use one
  (`DodoSSH.Client.Ssh.Tests`, `DodoSSH.SystemTests`) need Docker and are the exception.

Each item says what to do, what a pass looks like, and what a failure would mean.

---

## Phase 1 — the shell and the tab strip

### 1.1 No screen is sliced at the WebView's left edge · **the important one**

Open two terminals, then visit every nav rail entry in turn — HOSTS, FILES, KEYS, TEAM, PREFS.

**Pass:** each screen draws whole, its buttons all clickable, and the tab strip stays across the top of all
five.

**Failure means:** a screen is not collapsing while the terminal shows. The terminal is a native child
window and composites above everything Avalonia paints, so the symptom is a screen cut off at the WebView's
left edge with the rest unreachable. This window has shipped that defect once. The single wrapper `Panel`
bound to `IsShowingPages` in `MainWindow.axaml` is what should make it impossible.

### 1.2 A tab clicked from another screen takes the keyboard

Go to FILES with a terminal open. Click the tab. **Start typing immediately, without clicking anything
else.**

**Pass:** every character reaches the shell, including the first.

**Failure means:** `FocusTerminalWhenLaidOut` in `MainWindow.axaml.cs` is posting too early.
`NativeControlHost` re-pushes its bounds on the next layout pass, so focusing ahead of that pass races the
thing the focus depends on. The symptom is losing only the first keystroke or two, which is why this has to
be typed immediately rather than after a pause.

### 1.3 Leaving a terminal gives the keyboard back

With a terminal focused, click FILES. Type into the filter box.

**Pass:** the characters appear in the box.

**Failure means:** `ReleaseKeyboardTo` is missing on that path. **Collapsing the WebView does not release
the keyboard** — the native child window goes on holding Win32 focus and Avalonia then sees no key events
at all, so the screen that just appeared silently swallows everything. This was a latent bug before the
strip rework and is now on the hot path. See `docs/platform-flags.md`.

### 1.4 The middle click closes tabs and only tabs

Middle-click a tab (closes it), the strip background to the right of the last tab (closes nothing), and the
`+` button (closes nothing, opens nothing).

**Pass:** as described. Covered by `TerminalTabsTests` headlessly, so this is a confirmation that headless
pointer input matches a real mouse rather than a first look.

### 1.5 Connecting from the palette while on another screen

Press Ctrl+K from the FILES screen and connect to a host whose key is not yet approved.

**Pass:** the window lands on HOSTS with the fingerprint prompt visible and answerable.

**Failure means:** the prompt is behind the screen that asked for it, and the connection is blocked on a
question that cannot be reached.

---

## Phase 2 — Known Hosts as its own page

### 2.1 The fingerprint column is readable end to end

Connect to two or three hosts, approving each fingerprint. Go to PINS and widen the window to its minimum
(880px), then to something ordinary.

**Pass:** the full `SHA256:…` is on screen at both sizes, never cut off and never ellipsised.

**Failure means:** the one thing this screen is for has been broken. A truncated fingerprint cannot be
compared against a published one — it can only be glanced at, which is the habit pinning exists to replace.
`TheHostKeysScreenFitsWithPinsAndOneSelected` measures this at the minimum width, so a failure here is a
size the harness does not cover.

### 2.2 The APPROVED date is plausible

**Pass:** it is roughly the day you first connected to that host.

**Failure means:** the version 7 identifier is being read in the wrong byte order — the symptom is dates
tens of thousands of years out, not an error. Covered by `Uuid7TimestampTests`, so this is a confirmation
that the ids reaching the screen really are the ones this client minted. A pin restored from an older
client or another implementation shows `—`, which is correct rather than a failure.

### 2.3 Forgetting a pin reaches the server

With two machines signed in to the same account: forget a pin on one, sync the other.

**Pass:** the pin is gone on both, and the second machine asks you to check the fingerprint again on the
next connection.

**Failure means:** the forward from the screen's command to the vault's has lost the push. Withdrawing
trust that stays withdrawn only locally is the failure mode that matters here — the machines still refusing
to reach a rebuilt server are the other ones.

---

## Phase 2 — Generating a key

Most of this one *is* covered: `KeyAuthenticationTests.AKeyThisClientGenerated_AuthenticatesAgainstARealServer`
installs a generated public line on a real OpenSSH server in a container and connects with the private half,
for both algorithms. That is the claim that mattered, and it is automated. What is left is the interface
around it.

### 2.4 COPY PUBLIC KEY actually reaches the clipboard

Generate a key, save it, select it, press COPY PUBLIC KEY, then paste somewhere.

**Pass:** one `ssh-ed25519 AAAA… comment` line.

**Failure means:** the clipboard closure in `App.axaml.cs` is not finding the window. No test can see this —
the view models take a delegate precisely so they never touch a visual, which means the one real
implementation of that delegate is exercised by nothing but a person. `CopyingAPublicKey_WithNoClipboard_SaysSo`
covers only the branch where there is none.

### 2.5 RSA-4096 does not freeze the window

Choose RSA 4096 and press GENERATE. While it runs, drag the window and click around.

**Pass:** the window keeps painting and the status line says it is working.

**Failure means:** the `Task.Run` is not actually taking the work off the UI thread. Ed25519 is instant and
will not show this, so it has to be tried with RSA.

### 2.6 The generated key works end to end, by hand

Generate a key, save it, copy the public line, add it to a real host's `~/.ssh/authorized_keys`, bind the
host to the key in its editor, and connect.

**Pass:** it connects without a password.

This duplicates the container test on purpose. The container runs one image; the thing worth knowing is
that it works against whatever you actually run.

---

## Phase 2 — Importing ssh_config

The parser has 22 cases over the shapes a real file contains, and the end-to-end path is covered by
`ImportingAnSshConfig_ShowsItFirstAndThenStoresWhatWasTicked`. What no test can do is read *your* file.

### 2.7 Scan your own `~/.ssh/config` and read the preview against the file

Preferences → IMPORT HOSTS → SCAN. Do not press import yet.

**Pass:** every entry you would expect is listed, with the address and port you expect, and the warnings
above the table account for anything missing.

**What to look for specifically:**
- A `Host *` block's `User` should appear on hosts that set none, and **not** override hosts that set one.
- Entries whose name is a pattern (`*.internal`, `bastion-?`) should be *absent* from the table and named
  in the warnings.
- `Match` blocks should be counted in the warnings and their settings should not have leaked onto any host.
- A `ProxyCommand` should be reported as dropped, not silently kept.

**Failure means:** the importer and `ssh` disagree about what your file means, which produces bookmarks
that nearly connect. That is worse than an import that refused, so it is worth reading the table properly
once.

### 2.8 Nothing is written until the button

Scan, then navigate away without importing.

**Pass:** the Hosts screen is unchanged.

### 2.9 Imported hosts are correct

Import a couple, then open one on the Hosts screen.

**Pass:** the address, port and username match the config, and the notes record any `IdentityFile` path and
any `ProxyJump` — with `ProxyJump` clearly stated as not routing. Connecting should ask for a password even
where the config named a key, because **no key material is read**; binding it to a key in the keychain is a
separate act.

---

## Phase 2 — Drag and drop on the SFTP page

**This is the least-covered thing in the repository, and unavoidably so.** Headless Avalonia has no native
window and cannot synthesise a platform drag, so a test that claimed to drop a file from Explorer would
pass while confirming nothing. What is automated is the policy — `TransferQueueingTests` covers what may be
queued, what is skipped and what is said about it — and the wiring between a real drag and that policy is
covered by nothing at all.

Connect the SFTP page to a host first. All four of these should queue transfers.

### 2.10 Explorer → remote pane

Drag one file, then several, from Explorer onto the right-hand pane.

**Pass:** the pane outlines in accent colour while the pointer is over it, and the drop queues one transfer
per file into the directory showing.

### 2.11 Local pane → remote pane

**Pass:** as above. This uses the same platform file format as the Explorer drag, so a failure here with
2.10 passing points at the drag *source*, not the drop target.

### 2.12 Remote pane → local pane

**Pass:** the left pane outlines and the drop queues a download.

### 2.13 Local pane → Explorer

**Pass:** the file copies out.

### 2.14 The highlight clears · **the one most likely to be wrong**

Drag something over a pane and then out of it again without dropping.

**Pass:** the outline appears and then goes away.

**Failure means:** an overlay is participating in hit testing. It lays out identically either way — which is
why the layout test cannot catch it — but once visible it swallows the `DragOver` events underneath it, so
the pointer appears to leave immediately, the highlight sticks, and the drop lands nowhere. The fix is
`IsHitTestVisible="False"` on the highlight `Border` in `TransfersScreen.axaml`.

### 2.15 Dropping while disconnected

Disconnect, then drag a file over the remote pane.

**Pass:** the pane outlines in red and says "Connect to a host first." Nothing is queued on drop.

### 2.16 A click still selects a row

Click rows in both panes, and drag a row a few pixels without releasing.

**Pass:** a click selects; a small movement does not start a drag.

**Failure means:** the 4-pixel threshold in `TransfersScreen.axaml.cs` is not doing its job, and selecting a
row has become impossible.

### Not implemented: remote pane → Explorer

Dragging a *remote* file out to Explorer is deliberately absent. It needs the source to supply a virtual
file — on Windows, `CFSTR_FILEDESCRIPTORW` plus `CFSTR_FILECONTENTS` with delayed rendering — and Avalonia's
`IDataTransfer` marshals `DataFormat.File` only from a storage item that resolves to a real local path.
Pre-downloading to a temp file does not help: the shell demands the bytes during the drop. The only route is
a native COM `IDataObject` behind a platform interface, Windows-only and outside Avalonia's supported
surface. Use the ← button, or drag the file to the local pane first.

---

## Phase 3 — Host groups and snippets

Two synced item kinds, a sidebar that now draws headings, and one new frame between the host process and the
renderer. The data half of all of that is covered: the payloads round-trip, the server refuses the plaintext
fields, the sidebar's grouping and the snippet policy are in `ShellFlowTests`, and both new screens are
measured. What is left here is the part that only exists inside a WebView, plus the two-machine cases no
single-process test can reach.

### 3.1 A keychain with no groups looks exactly as it did

Open the hosts screen without creating any group.

**Pass:** the sidebar list is the flat list of hosts it always was — no headings, no UNGROUPED, nothing
saying the hosts are unfiled.

**Failure means:** the "invisible until used" property is gone, and every existing user gets a heading they
did not ask for. `RebuildSidebarRows` returns early when `Groups` is empty; that early return is the feature.

### 3.2 Filing hosts, and folding a heading

Make two groups, file some hosts into each through the host editor, then click a heading.

**Pass:** the heading's chevron flips and its hosts disappear; the count on the heading does not change,
because it counts what is in the group rather than what is on screen. Clicking again brings them back.

**Also check:** clicking a heading does not change which host is selected — the buttons at the foot of the
sidebar go on acting on the same machine. This is asserted in a test, but the test drives the view model
directly; what it cannot see is whether the `ListBox` writes something else back through the binding first.

### 3.3 Deleting a group with hosts in it

Select a group with hosts and press DELETE.

**Pass:** the question names how many hosts are filed under it and says they stay. Agreeing removes the
group; the hosts reappear under UNGROUPED with everything else about them unchanged.

**Failure means:** if the hosts vanish, the delete is rewriting host payloads, which it must not — see
`HostGroupRepository`.

### 3.4 A group deleted on another machine · **needs two machines**

Make a group on machine A, file a host into it, sync. On machine B, sync, then delete the group and sync
again. Back on A, sync.

**Pass:** A shows the host under UNGROUPED. Open that host's editor: the group picker shows "(a group that is
no longer here)" and *keeps it selected*. Change the port and save.

**Failure means:** if the picker opened on "No group", saving has just unfiled the host — quietly, as a side
effect of an unrelated edit. That is the case `BuildGroupChoices` adds the placeholder for.

### 3.5 A grouped host stays editable on an older build · **needs two builds**

Only worth doing before a release that ships alongside an older client. A host filed into a group is written
at payload schema 4; an older build must show it and refuse to edit it, rather than editing it and dropping
the group.

**Pass:** the older build says the host was written by a newer version. A host with *no* group still edits
normally there — that is what makes the version a maximum over the fields present rather than a stamp.

### 3.6 Inserting a snippet · **the one that cannot be tested here**

Open a terminal, go to SNIPS, select a snippet with `Press Enter after inserting this` **off**, and press the
insert button.

**Pass:** the terminal comes forward with the command sitting at the prompt, not run. The button named the
tab it was going to — check that it named the right one if several are open.

**Failure means:** if the command runs by itself, the flag byte or the JavaScript that reads it is wrong. If
nothing appears at all, the frame reached a pane the page does not have.

### 3.7 A multi-line snippet does not run line by line · **the reason the opcode exists**

Save a snippet whose command is three lines — `echo one`, `echo two`, `echo three` — with the run flag off,
and insert it into a **bash or zsh** session.

**Pass:** all three lines sit at the prompt as one pending command, and nothing runs until Enter. Modern
shells turn bracketed paste on, xterm.js sees that in the output stream, and `term.paste` wraps the text.

**Failure means:** if the first two lines execute and the third waits, the text went through as plain input
and the bracketing did not happen — which is the whole failure this frame was added to prevent.

**Then insert the same snippet into something with bracketed paste off** — a raw `sh`, or a session inside
`vi`. The lines *will* run there, and that is correct and unavoidable: without the mode there is no way to
distinguish pasted newlines from typed ones. It is why the screen says "types this into whatever is there"
rather than "runs this command".

### 3.8 RUN presses Enter

Select a snippet with the run flag on and press RUN.

**Pass:** the command runs.

**Failure means:** if the command appears and does not run, the `\r` is going through `paste` instead of
`input` — inside the bracketed wrapper it is literal text, so nothing executes.

### 3.9 Inserting into a tab whose remote has hung up

Open a terminal, `exit` it, leave the tab open, then insert a snippet at it.

**Pass:** the screen says that tab is no longer connected, and nothing is claimed to have been sent.

### 3.10 Both new kinds reach a second machine · **needs two machines**

Make a group and a snippet on A and sync; sync B.

**Pass:** both arrive, with their names and — for the snippet — its run flag intact. A snippet whose flag
arrives *set* when it was saved unset is the one failure here worth stopping for.

---

## Phase 4 — Logs

Both logs are synced item kinds with the whole pipeline covered: payloads round-trip, the server refuses
every plaintext field, retention is tested against a real vault, the activity hook is tested through the
repository every kind writes through, and the recursion guard has a test of its own. What is left here is
the part that only happens across a lock, across a process exit, or across two machines.

### 4.1 A connection is recorded when the tab closes, not before

Connect to a host, leave the tab open, and open LOGS.

**Pass:** the connection is at the top of CONNECTIONS with a green dot and the words **still open** — not a
dash, and not a duration. Close the tab and press REFRESH: the same connection now has a duration.

**Failure means:** a dash instead of "still open" reads as a recording that failed, which is the opposite of
what is happening. A duration before the tab closes means an entry is being written at open, which would
also mean it gets written twice.

### 4.2 The duration is plausible

Connect, wait a measured minute or two, disconnect.

**Pass:** the LASTED column agrees with the clock, rounded to whole units.

**Failure means:** a wildly wrong number points at the two timestamps coming from different clocks — both
should come from the workspace's own `TimeProvider`.

### 4.3 Closing the application records the tabs that were open · **the one most likely to be wrong**

Open two terminals and close the DodoSSH window without closing the tabs. Start it again, unlock, open LOGS.

**Pass:** both connections have entries, with durations running up to the moment you closed the window.

**Failure means:** they are the ordinary way a session ends, and the workspace's own close-outs happen while
it tears sessions down — *after* the vault they would be written into has gone. `ConnectionRecorder`'s
`DisposeAsync` closes the tickets itself, before the session is disposed, and waits up to two seconds for
the queue. If the entries are missing, that ordering has been broken; if closing the window became slow,
the bounded wait has.

### 4.4 A shell open across a lock still gets its entry

Connect to a host, lock the keychain from the titlebar, unlock again, then close the tab.

**Pass:** the connection is recorded, into the vault it was made in.

**Failure means:** the ticket keeps the repository it was opened against precisely so this works. A missing
entry means it is reading the current one instead, which would also mean an entry could be filed into the
wrong vault once shared vaults land.

### 4.5 A refused host key is recorded

Connect to a host, approve its key, then change the key on the remote (or edit the pin) so the next
connection is refused.

**Pass:** an entry appears with **host key refused** beside it. This is the row the connection log most
exists for — a changed host key is refused with no way past it, so the status line is otherwise its only
trace.

### 4.6 The SFTP session is recorded separately

Open the files screen and connect, then disconnect.

**Pass:** an entry with **files** in the KIND column, separate from any terminal entry.

**Failure means:** if it is missing, our log disagrees with the remote's own `auth.log`, which records the
second login. Anybody comparing the two would be right to believe the host.

### 4.7 The keychain log records names and never values

Edit a stored password: change both the password and the username. Open LOGS → KEYCHAIN.

**Pass:** one row saying **changed**, with `Password, Username` in the FIELDS column.

**Failure means:** if any part of the old or new password appears anywhere on that screen, stop — that is
the one thing this payload must never carry, and it would now be synced to every machine in the vault.

### 4.8 A pin trusted at the prompt is recorded

Connect to a host you have never reached and approve the fingerprint.

**Pass:** the keychain log shows a `KnownHostKey` **created**. This write never goes through a screen, so it
is exactly the one a hook placed in the view models would have missed.

### 4.9 The pending count and the status line stay honest

Save a host while online and watch the titlebar and the status line for a minute.

**Pass:** the pending count returns to zero and stays there, and the status line keeps saying what the save
said — it does not get overwritten a moment later by a sync report.

**Failure means:** every user action queues a log entry a moment afterwards. If the count sticks at 1 or the
status line flickers to "Synchronised: 1 out", the log entries have stopped being excluded from the two
numbers that are about the user's own work.

### 4.10 Both logs reach a second machine · **needs two machines**

Connect and edit something on A, sync; then sync B and open LOGS there.

**Pass:** both entries are on B, with A's device name on them. This is the claim the whole decision to sync
these rests on.

### 4.11 Retention actually prunes · **slow, or needs a clock**

Only checkable honestly by leaving a vault in use for months, or by temporarily lowering
`LogRetention.Default` in a debug build and watching a prune remove the excess and push the tombstones.

**Pass:** the count comes down, and the second machine's copy comes down too at its next sync.

**Failure means:** these entries sync, so a prune that does not push leaves every other machine holding
them — and this machine deleting them again on every pass.

---

## Phase 6 — S3 as a remote in the file browser

The parts that are this client's own reasoning are covered: the path-to-key translation, what a bucket must
have before it can be stored, the server's refusal of every plaintext field, and the item kind end to end.
What is left needs a real endpoint, and a fake would only assert our reading of the protocol back at us.

**Get a bucket first.** MinIO in Docker is the cheapest way and exercises the harder path — path-style
addressing, a custom endpoint, and a region that is ignored:

```bash
docker run -p 9000:9000 -e MINIO_ROOT_USER=dodossh -e MINIO_ROOT_PASSWORD=dodossh-secret minio/minio server /data
```

### 6.1 Adding a bucket

Keychain → BUCKETS → `+ BUCKET`. Endpoint `http://localhost:9000`, path-style **on**, any region.

**Pass:** it saves, appears in the list with the bucket and endpoint under its name, and syncs.

**Failure means:** if saving is refused, read the message — the validation exists so the reason names the
field rather than arriving later as an SDK error about resolving a URI.

### 6.2 Path-style addressing · **the one most likely to be wrong**

Save the same bucket with path-style **off** and open it.

**Pass:** it fails, and the failure is a name-resolution error mentioning `bucket.localhost`.

**Why it is worth doing deliberately:** that is exactly what a user gets when they leave the checkbox at its
default against a self-hosted service, and the message names neither buckets nor the setting. Seeing it once
is what makes the hint under the checkbox worth its space.

### 6.3 Browsing

Files → BUCKET → pick it → OPEN.

**Pass:** the right pane lists the bucket root. Prefixes appear as directories in the directory colour;
objects appear as files with sizes and dates. The PERMS column is empty — a bucket has no POSIX mode, and a
plausible `-rw-r--r--` would be invented.

**Also check** that the timestamps agree with the local pane's. Both columns are UTC; if the bucket's are out
by your machine's offset, the `DateTime.Kind` handling in `S3FileStore.Utc` has regressed.

### 6.4 Upload, and the pipe underneath it

Upload a file of a few hundred megabytes.

**Pass:** it completes, the object is in the bucket at the right key and the right size, and the machine's
memory does not grow with the file. The upload streams through a pipe into a multipart upload — nothing is
buffered to disk twice and nothing is held whole in memory.

**Failure means:** if it hangs at the end, the pipe's writer is not being completed on disposal. If memory
tracks the file size, the multipart path is not being taken.

### 6.5 A failed upload surfaces at the write

Start an upload and stop MinIO halfway.

**Pass:** the queue row fails with a message from the service, reasonably promptly.

**Failure means:** if it hangs instead, the background upload is failing without completing the pipe's
reader — and the copy is blocked on a pipe nobody is draining. That is the case `S3UploadStream` completes
the reader *with* the exception for.

### 6.6 Download, and resume

Download a large object, stop it partway, and resume.

**Pass:** it resumes from where it stopped, and the finished file matches the original. This direction is the
one where a bucket is better than SFTP — a ranged GET is part of the protocol.

### 6.7 Upload resume is refused, and says why

Start an upload, stop it partway, and press RESUME.

**Pass:** it fails with a message saying an object cannot be written from the middle, so an interrupted
upload starts again rather than resuming. RETRY from the start works.

**Why this is not a bug:** objects are immutable. Multipart could rebuild an interrupted transfer, but only
by persisting the upload id and every part's ETag across the interruption. Refusing is honest; silently
starting from zero would corrupt the file.

### 6.8 Delete refuses a prefix with anything under it

Try to delete a directory in the bucket that has objects in it.

**Pass:** refused, saying there are still objects under it. Deleting an empty one works.

### 6.9 The keys never appear anywhere they should not

After adding and editing a bucket, open LOGS → KEYCHAIN.

**Pass:** the entry says `Secret access key` in the FIELDS column and nowhere on that screen does any part of
the key itself appear.

### 6.10 Against real AWS · **needs an account**

Repeat 6.1 and 6.3 with the endpoint blank, a real region, and path-style **off**.

**Pass:** it lists. This is the path that exercises `RegionEndpoint.GetBySystemName` and virtual-host
addressing, neither of which MinIO covers.

---

## Phase 7 — Connecting without waiting, and the host list's pointer

Connecting no longer holds the vault while it happens: a tab appears at once and the handshake runs behind
it. The state machine around that is covered in `ShellFlowTests` — the tab, the card, the two kinds of
failure, two connections at once — and the card itself is measured. What is left needs a real window: a
native drag, a real menu popup, and a host that takes its time answering.

### 7.1 The window stays usable while a connection is being made · **the point of the change**

Connect to something that will take a while — an address that is routable but silent, so the handshake sits
there rather than failing at once (a firewalled IP is ideal; `10.255.255.1` will do). While it runs: click
around the host list, open KEYS, edit something, connect to a second host.

**Pass:** everything works. The strip shows a tab named for the host with `connecting…` beside it, and the
terminal area shows the host, the address it is dialling, and the same word.

**Failure means:** the connect has ended up back inside `RunAsync`'s busy gate, which is the one thing
`VaultViewModel.ConnectAsync` must never be put inside again.

### 7.2 Navigating away during a connection unlights the tab

While 7.1's connection is still running, click KEYS.

**Pass:** the tab stays in the strip and stops being marked as the active one. No accent bar along its top
edge while a page is showing.

**Failure means:** the tab is bound to `IsSelected` again rather than to `IsShowing`, and the strip is
claiming to be what the window is showing when it is not.

### 7.3 A refusal ends up in the tab, not only in the status line

Connect to a host with the wrong password, and navigate to PREFS before it answers.

**Pass:** the tab goes grey and carries the refusal; selecting it shows the reason in the middle of the
window with a CLOSE TAB button. Closing it returns to the page underneath.

**Failure means:** a connection that failed while the user was elsewhere has left no trace anywhere they
would look.

### 7.4 An unknown host key still wins the window

Connect to a host whose key is not yet approved.

**Pass:** no tab is left behind, and the window is on HOSTS with the fingerprint prompt. Approving it
connects and gives the tab a pane. This is 1.5 with the tab rework underneath it.

### 7.5 Giving up on a connection, and what arrives afterwards

Start 7.1's slow connection and press GIVE UP (or the tab's cross) while it is still trying.

**Pass:** the tab goes at once. If the host does eventually answer, a tab appears for the session that
opened — it is a real shell, and one running with nothing naming it would be worse than one that comes
back.

### 7.6 Dragging a host into a group · **least covered, like all drag and drop**

Make two groups and file a host into one. Drag a host row onto another group's heading; onto a host row
inside another group; and onto UNGROUPED.

**Pass:** the row under the pointer washes accent while the pointer is over it, the cursor shows a move
rather than a refusal, and the drop files the host — it moves under that heading and the counts on both
headings change. Dropping onto its own group's heading is refused while still in the air.

**Failure means:** headless Avalonia cannot synthesise a platform drag, so nothing about this gesture is
automated. The write it performs is: `MovingAHostToAGroup_FilesItAndLeavesItSelected`.

### 7.7 A click still selects, and a double click still connects

Click host rows; drag one a few pixels without releasing; double-click one.

**Pass:** a click selects, a small movement starts nothing, and a double click connects.

**Failure means:** the 5-pixel threshold in `HostSidebar.axaml.cs` is not doing its job — the same failure
as 2.16 on the other screen, and here it would make the list unusable.

### 7.8 The highlight clears after a drag that goes nowhere

Drag a host over a heading and release outside the list, or press Escape mid-drag.

**Pass:** the wash goes away.

### 7.9 The right-click menu acts on the row under the pointer

With host A selected, right-click host B and choose Delete.

**Pass:** the question names **B**. Then right-click a group heading.

**Pass:** no menu opens at all, and the host selection has not moved.

**Failure means:** a menu acting on the selection rather than on the row under the pointer deletes the wrong
machine. `HostSidebarTests` covers both halves headlessly, so this is a confirmation that a real popup
behaves as the headless one did.

### 7.10 Clicking a host in the palette connects

Ctrl+K, then click a result with the mouse rather than pressing Enter.

**Pass:** the palette closes and the connection starts.

### 7.11 A host or a bucket made now can be picked on FILES now

With the files screen's picker open on an empty or short list, go to HOSTS and add a host — or to KEYS and
add a bucket — then come back.

**Pass:** the new one is in the picker, without locking and unlocking.

**Failure means:** the screen has gone back to copying the vault's lists once at unlock. Covered by
`TheTransfersScreen_FollowsTheVaultsHostList`; this is the version of it with a real picker in front of it.
