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Make test cases runnable

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Fixes #6
This commit is contained in:
Rob Whitaker 2021-04-29 20:22:12 -04:00
parent 08602032e4
commit 46af6efca5
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GPG Key ID: 461182595352FDD6
3 changed files with 218 additions and 64 deletions
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126
tests/default.nix
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@ -1,66 +1,64 @@
let
nix-filter = import ../.;
testCases = import ./tests.nix;
# Convert a path to a string with the root stripped
toRelativeString = root: path:
let
r = toString root;
p = toString path;
in
builtins.substring
(builtins.stringLength r + 1)
(builtins.stringLength p)
p;
# Traverse a directory, returning all children in a list
listDir =
root:
let
files = builtins.readDir root;
filesAsList = map (fileName:
{
path = root + ("/" + fileName);
type = builtins.getAttr fileName files;
}
) (builtins.attrNames files);
pathsInDir = map (file: file.path) filesAsList;
nestedPaths = builtins.concatMap (file: listDir file.path)
(builtins.filter (file: file.type == "directory") filesAsList);
in
pathsInDir ++ nestedPaths;
# Run a test, returning a list of failures
runTest = testDef:
let
missing = builtins.filter (file:
! builtins.pathExists (testDef.actual + ("/" + file))
) testDef.expected;
included = map (toRelativeString testDef.actual) (listDir testDef.actual);
extra = builtins.filter (path:
! builtins.elem path testDef.expected
) included;
in
(map (x: { path = x; status = "missing"; }) missing)
++
(map (x: { path = x; status = "extra"; }) extra);
# Take a set of test results and filter out every key that
# is not failing.
onlyFailures = results:
let
names = builtins.attrNames results;
in
builtins.foldl' (finalFailures: testName:
let
failures = builtins.getAttr testName results;
in
if builtins.length failures == 0
then finalFailures
else finalFailures // { ${testName} = failures; }
) {} names;
testResults = builtins.mapAttrs (_: testDef: runTest testDef) testCases;
in
{
all = nix-filter {
root = ./fixture1;
};
without-readme = nix-filter {
root = ./fixture1;
exclude = [
"README.md"
];
};
with-matchExt = nix-filter {
root = ./fixture1;
include = [
"package.json"
"src"
(nix-filter.matchExt "js")
];
};
with-matchExt2 = nix-filter {
root = ./fixture1;
include = [
"package.json"
"src/innerdir"
(nix-filter.matchExt "js")
];
};
with-inDirectory = nix-filter {
root = ./fixture1;
include = [
(nix-filter.inDirectory "src") # should match everything under ./fixture1/src/
(nix-filter.inDirectory "READ") # should not match README.md
];
};
# should match everything under ./fixture1/src/ but not in ./fixture1/src/innerdir/
with-inDirectory2 = nix-filter {
root = ./fixture1;
include = [
(nix-filter.inDirectory "src")
];
exclude = [
(nix-filter.inDirectory ./fixture1/src/innerdir)
];
};
combiners = nix-filter {
root = ./fixture1;
include = with nix-filter; [
(and isDirectory (inDirectory "src"))
];
};
trace = nix-filter {
root = ./fixture1;
include = [
nix-filter.traceUnmatched
];
};
}
testResults // { "@onlyFailures" = onlyFailures testResults; }

15
tests/run-tests.sh Executable file
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@ -0,0 +1,15 @@
#!/usr/bin/env bash
set -e
extra_flags=""
if [[ "$#" -eq 1 ]]; then
extra_flags="-A $1"
fi
# Need to build first or the store paths don't exist
# for default.nix to traverse
nix-build &>/dev/null
nix-instantiate --eval --strict --json $extra_flags

141
tests/tests.nix Normal file
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@ -0,0 +1,141 @@
let
nix-filter = import ../.;
in
{
all = rec {
root = ./fixture1;
actual = nix-filter {
inherit root;
};
expected = [
"README.md"
"package.json"
"src"
"src/main.js"
"src/components"
"src/components/widget.jsx"
"src/innerdir"
"src/innerdir/inner.js"
];
};
without-readme = rec {
root = ./fixture1;
actual = nix-filter {
inherit root;
exclude = [
"README.md"
];
};
expected = [
"package.json"
"src"
"src/main.js"
"src/components"
"src/components/widget.jsx"
"src/innerdir"
"src/innerdir/inner.js"
];
};
with-matchExt = rec {
root = ./fixture1;
actual = nix-filter {
inherit root;
include = [
"package.json"
"src"
(nix-filter.matchExt "js")
];
};
expected = [
"package.json"
"src"
"src/main.js"
];
};
with-matchExt2 = rec {
root = ./fixture1;
actual = nix-filter {
inherit root;
include = [
"package.json"
"src/innerdir"
(nix-filter.matchExt "js")
];
};
expected = [
"package.json"
"src"
"src/main.js"
"src/innerdir"
"src/innerdir/inner.js"
];
};
with-inDirectory = rec {
root = ./fixture1;
actual = nix-filter {
inherit root;
include = [
(nix-filter.inDirectory "src")
(nix-filter.inDirectory "READ")
];
};
expected = [
"src"
"src/main.js"
"src/components"
"src/components/widget.jsx"
"src/innerdir"
"src/innerdir/inner.js"
];
};
with-inDirectory2 = rec {
root = ./fixture1;
actual = nix-filter {
inherit root;
include = [
(nix-filter.inDirectory "src")
(nix-filter.inDirectory "READ")
];
exclude = [
(nix-filter.inDirectory ./fixture1/src/innerdir)
];
};
expected = [
"src"
"src/main.js"
"src/components"
"src/components/widget.jsx"
];
};
combiners = rec {
root = ./fixture1;
actual = nix-filter {
inherit root;
include = with nix-filter; [
(and isDirectory (inDirectory "src"))
];
};
expected = [
"src"
"src/components"
"src/innerdir"
];
};
trace = rec {
root = ./fixture1;
actual = nix-filter {
inherit root;
include = [
nix-filter.traceUnmatched
];
};
expected = [];
};
}