"but doctor, I AM the untrusted store": nix doctor had wrong trustedness

This probably snuck in in a refactor using truthiness or so. The
trustedness flag was having the optional fullness checked, rather than
the actual contained trust level.

Also adds some tests.

```
m1@6876551b-255d-4cb0-af02-8a4f17b27e2e ~ % nix store ping
warning: 'nix store ping' is a deprecated alias for 'nix store info'
Store URL: daemon
Version: 2.20.4
Trusted: 0
m1@6876551b-255d-4cb0-af02-8a4f17b27e2e ~ % nix doctor
warning: 'doctor' is a deprecated alias for 'config check'
[PASS] PATH contains only one nix version.
[PASS] All profiles are gcroots.
[PASS] Client protocol matches store protocol.
[INFO] You are trusted by store uri: daemon
```

Fixes: https://git.lix.systems/lix-project/lix/issues/232
Change-Id: I21576e2a0a755036edf8814133345987617ba3d0

1 files changed, 6 insertions, 1 deletions

diff --git a/tests/functional/legacy-ssh-store.sh b/tests/functional/legacy-ssh-store.sh
index 71b716b84..a75d55f34 100644
--- a/tests/functional/legacy-ssh-store.sh
+++ b/tests/functional/legacy-ssh-store.sh
@@ -1,4 +1,9 @@
 source common.sh
 
+store_uri="ssh://localhost?remote-store=$TEST_ROOT/other-store"
+
 # Check that store ping trusted doesn't yet work with ssh://
-nix --store ssh://localhost?remote-store=$TEST_ROOT/other-store store ping --json | jq -e 'has("trusted") | not'
+nix --store "$store_uri" store ping --json | jq -e 'has("trusted") | not'
+
+# Suppress grumpiness about multiple nixes on PATH
+(nix --store "$store_uri" doctor || true) 2>&1 | grep 'You are unknown trust'