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nix-super/tests/functional/user-envs-test-case.sh
Valentin Gagarin 33ca905cdb tests: simplify initialisation and wiring 
pararameterisation is not actually needed the way things are currently
set up, and it confused me when trying to understand what the code does.

all but one test sources vars-and-functions.sh, which nominally only
defines variables, but in practice is always coupled with the actual
initialisation. while the cleaner way of making this more legible would
be to source variables and initialisation separately, this would produce
a huge diff.

the change requires a few small fixes to keep the tests working:

- only create test home directory during initialisation

  that vars-and-functions.sh wrote to the file system seems not write

- fix creation of the test directory

  due to statefulness, the test home directory was implicitly creating
  the test root, too. decoupling that made it apparent that this was
  probably not intentional, and certainly confusing.

- only source vars-and-functions.sh if init.sh is not needed

  there is one test case that only needs a helper function but no
  initialisation side effects

- remove some unnecessary cleanups and split parts of re-used test code

  there were confusing bits in how initialisation code was repurposed,
  which break if trying to refactor the outer layers naively...
2024-05-13 15:19:49 +02:00

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clearProfiles
# Query installed: should be empty.
test "$(nix-env -p $profiles/test -q '*' | wc -l)" -eq 0
nix-env --switch-profile $profiles/test
# Query available: should contain several.
test "$(nix-env -f ./user-envs.nix -qa '*' | wc -l)" -eq 6
outPath10=$(nix-env -f ./user-envs.nix -qa --out-path --no-name '*' | grep foo-1.0)
drvPath10=$(nix-env -f ./user-envs.nix -qa --drv-path --no-name '*' | grep foo-1.0)
[ -n "$outPath10" -a -n "$drvPath10" ]
# Query with json
nix-env -f ./user-envs.nix -qa --json | jq -e '.[] | select(.name == "bar-0.1") | [
.outputName == "out",
.outputs.out == null
] | all'
nix-env -f ./user-envs.nix -qa --json --out-path | jq -e '.[] | select(.name == "bar-0.1") | [
.outputName == "out",
(.outputs.out | test("'$NIX_STORE_DIR'.*-0\\.1"))
] | all'
nix-env -f ./user-envs.nix -qa --json --drv-path | jq -e '.[] | select(.name == "bar-0.1") | (.drvPath | test("'$NIX_STORE_DIR'.*-0\\.1\\.drv"))'
# Query descriptions.
nix-env -f ./user-envs.nix -qa '*' --description | grepQuiet silly
rm -rf $HOME/.nix-defexpr
ln -s $(pwd)/user-envs.nix $HOME/.nix-defexpr
nix-env -qa '*' --description | grepQuiet silly
# Query the system.
nix-env -qa '*' --system | grepQuiet $system
# Install "foo-1.0".
nix-env -i foo-1.0
# Query installed: should contain foo-1.0 now (which should be
# executable).
test "$(nix-env -q '*' | wc -l)" -eq 1
nix-env -q '*' | grepQuiet foo-1.0
test "$($profiles/test/bin/foo)" = "foo-1.0"
# Test nix-env -qc to compare installed against available packages, and vice versa.
nix-env -qc '*' | grepQuiet '< 2.0'
nix-env -qac '*' | grepQuiet '> 1.0'
# Test the -b flag to filter out source-only packages.
[ "$(nix-env -qab | wc -l)" -eq 1 ]
# Test the -s flag to get package status.
nix-env -qas | grepQuiet 'IP- foo-1.0'
nix-env -qas | grepQuiet -- '--- bar-0.1'
# Disable foo.
nix-env --set-flag active false foo
(! [ -e "$profiles/test/bin/foo" ])
# Enable foo.
nix-env --set-flag active true foo
[ -e "$profiles/test/bin/foo" ]
# Store the path of foo-1.0.
outPath10_=$(nix-env -q --out-path --no-name '*' | grep foo-1.0)
echo "foo-1.0 = $outPath10"
[ "$outPath10" = "$outPath10_" ]
# Install "foo-2.0pre1": should remove foo-1.0.
nix-env -i foo-2.0pre1
# Query installed: should contain foo-2.0pre1 now.
test "$(nix-env -q '*' | wc -l)" -eq 1
nix-env -q '*' | grepQuiet foo-2.0pre1
test "$($profiles/test/bin/foo)" = "foo-2.0pre1"
# Upgrade "foo": should install foo-2.0.
NIX_PATH=nixpkgs=./user-envs.nix:${NIX_PATH-} nix-env -f '<nixpkgs>' -u foo
# Query installed: should contain foo-2.0 now.
test "$(nix-env -q '*' | wc -l)" -eq 1
nix-env -q '*' | grepQuiet foo-2.0
test "$($profiles/test/bin/foo)" = "foo-2.0"
# Store the path of foo-2.0.
outPath20=$(nix-env -q --out-path --no-name '*' | grep foo-2.0)
test -n "$outPath20"
# Install bar-0.1, uninstall foo.
nix-env -i bar-0.1
nix-env -e foo
# Query installed: should only contain bar-0.1 now.
if nix-env -q '*' | grepQuiet foo; then false; fi
nix-env -q '*' | grepQuiet bar
# Rollback: should bring "foo" back.
oldGen="$(nix-store -q --resolve $profiles/test)"
nix-env --rollback
[ "$(nix-store -q --resolve $profiles/test)" != "$oldGen" ]
nix-env -q '*' | grepQuiet foo-2.0
nix-env -q '*' | grepQuiet bar
# Rollback again: should remove "bar".
nix-env --rollback
nix-env -q '*' | grepQuiet foo-2.0
if nix-env -q '*' | grepQuiet bar; then false; fi
# Count generations.
nix-env --list-generations
test "$(nix-env --list-generations | wc -l)" -eq 7
# Doing the same operation twice results in the same generation, which triggers
# "lazy" behaviour and does not create a new symlink.
nix-env -i foo
nix-env -i foo
# Count generations.
nix-env --list-generations
test "$(nix-env --list-generations | wc -l)" -eq 8
# Switch to a specified generation.
nix-env --switch-generation 7
[ "$(nix-store -q --resolve $profiles/test)" = "$oldGen" ]
# Install foo-1.0, now using its store path.
nix-env -i "$outPath10"
nix-env -q '*' | grepQuiet foo-1.0
nix-store -qR $profiles/test | grep "$outPath10"
nix-store -q --referrers-closure $profiles/test | grep "$(nix-store -q --resolve $profiles/test)"
[ "$(nix-store -q --deriver "$outPath10")" = $drvPath10 ]
# Uninstall foo-1.0, using a symlink to its store path.
ln -sfn $outPath10/bin/foo $TEST_ROOT/symlink
nix-env -e $TEST_ROOT/symlink
if nix-env -q '*' | grepQuiet foo; then false; fi
nix-store -qR $profiles/test | grepInverse "$outPath10"
# Install foo-1.0, now using a symlink to its store path.
nix-env -i $TEST_ROOT/symlink
nix-env -q '*' | grepQuiet foo
# Delete all old generations.
nix-env --delete-generations old
# Run the garbage collector. This should get rid of foo-2.0 but not
# foo-1.0.
nix-collect-garbage
test -e "$outPath10"
(! [ -e "$outPath20" ])
# Uninstall everything
nix-env -e '*'
test "$(nix-env -q '*' | wc -l)" -eq 0
# Installing "foo" should only install the newest foo.
nix-env -i foo
test "$(nix-env -q '*' | grep foo- | wc -l)" -eq 1
nix-env -q '*' | grepQuiet foo-2.0
# On the other hand, this should install both (and should fail due to
# a collision).
nix-env -e '*'
(! nix-env -i foo-1.0 foo-2.0)
# Installing "*" should install one foo and one bar.
nix-env -e '*'
nix-env -i '*'
test "$(nix-env -q '*' | wc -l)" -eq 2
nix-env -q '*' | grepQuiet foo-2.0
nix-env -q '*' | grepQuiet bar-0.1.1
# Test priorities: foo-0.1 has a lower priority than foo-1.0, so it
# should be possible to install both without a collision. Also test
# ‘--set-flag priority’ to manually override the declared priorities.
nix-env -e '*'
nix-env -i foo-0.1 foo-1.0
[ "$($profiles/test/bin/foo)" = "foo-1.0" ]
nix-env --set-flag priority 1 foo-0.1
[ "$($profiles/test/bin/foo)" = "foo-0.1" ]
# Test nix-env --set.
nix-env --set $outPath10
[ "$(nix-store -q --resolve $profiles/test)" = $outPath10 ]
nix-env --set $drvPath10
[ "$(nix-store -q --resolve $profiles/test)" = $outPath10 ]
# Test the case where $HOME contains a symlink.
mkdir -p $TEST_ROOT/real-home/alice/.nix-defexpr/channels
ln -sfn $TEST_ROOT/real-home $TEST_ROOT/home
ln -sfn $(pwd)/user-envs.nix $TEST_ROOT/home/alice/.nix-defexpr/channels/foo
HOME=$TEST_ROOT/home/alice nix-env -i foo-0.1
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