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import assert from "node:assert/strict";
import { mkdtempSync, mkdirSync, writeFileSync, symlinkSync, rmSync } from "node:fs";
import { tmpdir } from "node:os";
import { dirname, join } from "node:path";
import { fileURLToPath } from "node:url";
import { spawnSync } from "node:child_process";
import process from "node:process";
import { createSemverProject, assertSemverReport } from "./semver-conformance-project.mjs";
const root = dirname(dirname(fileURLToPath(import.meta.url)));
const workspace = dirname(root);
const temporary = mkdtempSync(join(tmpdir(), "featurevisor-runner-conformance-"));
const selected = process.argv.slice(2);
const runners = {
javascript: { cwd: root, command: process.execPath, args: [join(root, "packages/cli/bin.js")] },
go: { cwd: join(workspace, "featurevisor-go"), command: "go", args: ["run", "cmd/main.go"] },
swift: {
cwd: join(workspace, "featurevisor-swift2"),
command: "swift",
args: ["run", "--skip-build", "featurevisor"],
},
java: {
cwd: join(workspace, "featurevisor-java"),
command: "mvn",
args: [
"-q",
"-pl",
"featurevisor-sdk",
"exec:java",
"-Dexec.mainClass=com.featurevisor.cli.CLI",
],
},
ruby: {
cwd: join(workspace, "featurevisor-ruby"),
command: "bundle",
args: ["exec", "ruby", "bin/featurevisor"],
},
python: {
cwd: join(workspace, "featurevisor-python"),
command: process.env.FEATUREVISOR_PYTHON || "python3",
args: ["-m", "featurevisor"],
env: { PYTHONPATH: "src" },
},
php: { cwd: join(workspace, "featurevisor-php"), command: "./featurevisor", args: [] },
rust: {
cwd: join(workspace, "featurevisor-rust"),
command: "cargo",
args: ["run", "--quiet", "--features", "cli", "--bin", "featurevisor", "--"],
},
elixir: { cwd: join(workspace, "featurevisor-elixir"), command: "./featurevisor", args: [] },
dart: {
cwd: join(workspace, "featurevisor-dart/packages/featurevisor"),
command: "dart",
args: ["run", "bin/featurevisor.dart"],
},
dotnet: {
cwd: join(workspace, "featurevisor-dotnet"),
command: "dotnet",
args: [
"run",
"--no-build",
"--project",
"src/Featurevisor.Cli/Featurevisor.Cli.csproj",
"-c",
"Release",
"-f",
"net10.0",
"--",
],
},
};
function write(project, file, value) {
const destination = join(project, file);
mkdirSync(dirname(destination), { recursive: true });
writeFileSync(destination, typeof value === "string" ? value : JSON.stringify(value, null, 2));
}
function fixture(name, sets = false, environments = true) {
const project = join(temporary, name);
mkdirSync(project);
symlinkSync(
join(root, "node_modules"),
join(project, "node_modules"),
process.platform === "win32" ? "junction" : "dir",
);
write(
project,
"featurevisor.config.js",
`module.exports = ${JSON.stringify({ parser: "json", ...(sets || !environments ? {} : { environments: ["production"] }), sets, tags: ["all"] })};`,
);
const locations = sets ? ["sets/staging/", "sets/production/"] : [""];
for (const prefix of locations) {
const environment = sets || !environments ? {} : { environment: "production" };
write(project, `${prefix}attributes/country.json`, { description: "Country", type: "string" });
write(project, `${prefix}segments/dutch.json`, {
description: "Dutch audience, tested independently of Target datafiles",
conditions: [{ attribute: "country", operator: "equals", value: "nl" }],
});
write(project, `${prefix}targets/checks.json`, {
description: "Selected definitions without the independently tested segment",
includeFeatures: ["checkout"],
includeVariables: ["minimum", "maximum", "settings"],
});
const rules = [{ key: "available", conditions: "*", percentage: 100 }];
write(project, `${prefix}features/checkout.json`, {
description: "Checkout",
tags: ["all"],
bucketBy: "userId",
rules: sets || !environments ? rules : { production: rules },
});
write(project, `${prefix}features/unused.json`, {
description: "No associated specs",
tags: ["all"],
bucketBy: "userId",
rules: sets || !environments ? rules : { production: rules },
});
write(project, `${prefix}variables/maximum.json`, {
description: "Maximum",
tags: ["all"],
type: "integer",
defaultValue: 10,
});
write(project, `${prefix}variables/unusedValue.json`, {
description: "No associated specs",
tags: ["all"],
type: "string",
defaultValue: "unused",
});
const overrides = [
{
key: "netherlands",
conditions: [{ attribute: "country", operator: "equals", value: "nl" }],
value: 12,
},
];
write(project, `${prefix}variables/minimum.json`, {
description: "Minimum",
tags: ["all"],
type: "integer",
defaultValue: 5,
overrides: sets || !environments ? overrides : { production: overrides },
});
write(project, `${prefix}tests/minimum.spec.json`, {
variable: "minimum",
assertions: [
{
...environment,
key: `it's a "quoted" case`,
context: { country: "de" },
expectedValue: 5,
checks: [
{ key: "minimum-positive", variable: "minimum", operator: "greaterThan", value: 0 },
{ key: "not-dutch", segment: "dutch", matches: false },
],
},
],
});
write(project, `${prefix}tests/scenarios/checkout.spec.json`, {
feature: "checkout",
assertions: [{ ...environment, at: 50, expectedToBeEnabled: true }],
});
write(project, `${prefix}variables/settings.json`, {
description: "Null and missing values",
tags: ["all"],
type: "object",
defaultValue: { nullable: null },
});
write(project, `${prefix}tests/settings.spec.json`, {
variable: "settings",
assertions: [
{
key: "explicit-null",
...environment,
checks: [{ variable: "settings", path: "nullable", operator: "isNull" }],
},
{
key: "missing-path",
...environment,
checks: [
{ key: "missing-value", variable: "settings", path: "absent", operator: "isNull" },
],
},
],
});
write(project, `${prefix}tests/journeys/limits.spec.json`, {
...environment,
target: "checks",
matrix: { country: ["nl", "de"] },
context: { country: "${{ country }}" },
checks: [
{
key: "checkout-ready",
description: "Checkout remains enabled",
feature: "checkout",
enabled: true,
},
{
key: "bounds",
description: "Minimum must not exceed maximum",
variable: "minimum",
operator: "lessThanOrEquals",
compareTo: { variable: "maximum" },
},
{
key: "named-group",
or: [
{ feature: "checkout", enabled: true },
{ variable: "minimum", operator: "equals", value: 99 },
],
},
{ key: "audience", segment: "dutch", matches: false },
],
children: [
{
context: { country: "de" },
checks: [
{
key: "child-bounds",
variable: "minimum",
operator: "lessThanOrEquals",
compareTo: { variable: "maximum" },
},
{ segment: "dutch", matches: false },
],
},
{
checks: [
{
key: "inherited-bounds",
variable: "minimum",
operator: "lessThanOrEquals",
compareTo: { variable: "maximum" },
},
],
},
],
});
}
return project;
}
function mavenArguments(args) {
return args.map((arg) => `'${arg.replace(/'/g, "'\"'\"'")}'`).join(" ");
}
function execute(name, project, args, exactRerun = false, launcher, hostileLocale = false) {
const runner = runners[name];
const directoryOption = name === "javascript" ? "rootDirectoryPath" : "projectDirectoryPath";
const testArgs = [
"test",
...(exactRerun ? [] : [`--${directoryOption}=${project}`]),
"--json",
...args,
];
const argv = launcher
? [
"-c",
`${launcher.command} "$@"`,
"featurevisor-rerun",
...(launcher.argumentEncoding === "maven-exec"
? [`-Dexec.args=${mavenArguments(testArgs)}`]
: testArgs),
]
: name === "java"
? [...runner.args, `-Dexec.args=${mavenArguments(testArgs)}`]
: [...runner.args, ...testArgs];
const result = spawnSync(launcher ? "sh" : runner.command, argv, {
cwd: runner.cwd,
encoding: "utf8",
timeout: 180000,
maxBuffer: 16 * 1024 * 1024,
env: {
...process.env,
NO_COLOR: "1",
FORCE_COLOR: "0",
...runner.env,
...(hostileLocale ? { LANG: undefined, LC_ALL: "C", LC_CTYPE: "C" } : {}),
},
});
assert.ifError(result.error);
assert.equal(result.signal, null, `${name}: ${result.stderr}`);
let report;
try {
report = JSON.parse(result.stdout);
} catch {
throw new Error(
`${name}: expected exactly one JSON document\n${result.stdout}\n${result.stderr}`,
);
}
assert.equal(report.schemaVersion, 1);
if (args.includes("--pretty"))
assert.match(result.stdout, /\n\s+"/, `${name}: --pretty should indent JSON`);
assert.equal(report.runner, name);
assert.equal(result.status, report.passed ? 0 : 1, `${name}: inconsistent exit status`);
return report;
}
function comparable(report) {
return {
passed: report.passed,
summary: report.summary,
results: report.results
.map((spec) => ({
type: spec.type,
key: spec.key,
source: spec.source,
set: spec.set,
passed: spec.passed,
cases: spec.cases
.map((testCase) => ({
id: testCase.id,
environment: testCase.environment,
target: testCase.target,
context: testCase.context,
matrixValues: testCase.matrixValues,
passed: testCase.passed,
}))
.sort((a, b) => a.id.localeCompare(b.id)),
}))
.sort((a, b) => a.source.localeCompare(b.source)),
};
}
function collisionFixture() {
const project = fixture("cache identities");
rmSync(join(project, "tests"), { recursive: true });
rmSync(join(project, "features"), { recursive: true });
rmSync(join(project, "variables"), { recursive: true });
rmSync(join(project, "targets"), { recursive: true });
write(
project,
"featurevisor.config.js",
'module.exports = { parser: "json", environments: ["prod", "prod-target-web"] };',
);
write(project, "attributes/channel.json", { description: "Channel", type: "string" });
write(project, "attributes/userId.json", { description: "User", type: "string" });
write(project, "features/flag.json", {
description: "Environment specific flag",
bucketBy: "userId",
rules: {
prod: [{ key: "off", conditions: "*", percentage: 0 }],
"prod-target-web": [{ key: "on", conditions: "*", percentage: 100 }],
},
});
for (const [key, channel] of [
["web", "web"],
["web-target-mobile", "mobile"],
["mobile", "second-mobile"],
]) {
write(project, `targets/${key}.json`, { description: key, context: { channel } });
}
const override = (value) => ({
key: value,
conditions: [{ attribute: "channel", operator: "equals", value }],
value,
});
write(project, "variables/marker.json", {
description: "Selected datafile marker",
type: "string",
defaultValue: "base",
overrides: {
prod: [override("web"), override("mobile")],
"prod-target-web": [
override("second-mobile"),
{ key: "base", conditions: "*", value: "second-base" },
],
},
});
const selections = [
{ environment: "prod", target: "web", value: "web", enabled: false },
{ environment: "prod-target-web", value: "second-base", enabled: true },
{ environment: "prod", target: "web-target-mobile", value: "mobile", enabled: false },
{ environment: "prod-target-web", target: "mobile", value: "second-mobile", enabled: true },
];
write(project, "tests/flag.spec.json", {
feature: "flag",
assertions: selections.map(({ environment, target, enabled }) => ({
environment,
target,
at: 50,
expectedToBeEnabled: enabled,
})),
});
write(project, "tests/marker.spec.json", {
variable: "marker",
assertions: selections.map(({ environment, target, value }) => ({
environment,
target,
expectedValue: value,
})),
});
selections.forEach(({ environment, target, value, enabled }, index) =>
write(project, `tests/scenario-${index}.spec.json`, {
environment,
target,
at: 50,
checks: [
{ variable: "marker", operator: "equals", value },
{ feature: "flag", enabled },
],
}),
);
return project;
}
function assertionFailureFixture() {
const project = fixture("ordinary assertion errors");
rmSync(join(project, "tests"), { recursive: true });
write(project, "features/checkout.json", {
bucketBy: "userId",
variations: [{ value: "control", weight: 100 }],
variablesSchema: { label: { type: "string", defaultValue: "actual" } },
rules: { production: [{ key: "all", conditions: "*", percentage: 100 }] },
});
const expectation = {
expectedToBeEnabled: false,
expectedVariation: "treatment",
expectedVariables: { label: "expected" },
};
write(project, "tests/feature.spec.json", {
feature: "checkout",
assertions: [
{ environment: "production", at: 50, ...expectation, children: [{ ...expectation }] },
],
});
write(project, "tests/variable.spec.json", {
variable: "maximum",
assertions: [
{
environment: "production",
expectedValue: -1,
expectedEvaluation: { reason: "error" },
children: [{ expectedValue: -2 }],
},
],
});
write(project, "tests/segment.spec.json", {
segment: "dutch",
assertions: [{ context: { country: "nl" }, expectedToMatch: false }],
});
return project;
}
function dependentSegmentsFixture(environments = true) {
const project = fixture(
`dependent segment evaluations ${environments ? "with environments" : "without environments"}`,
false,
environments,
);
const environment = environments ? { environment: "production" } : {};
rmSync(join(project, "tests"), { recursive: true });
write(project, "attributes/userId.json", { description: "User", type: "string" });
write(project, "variables/policy.json", {
description: "Evaluated source with a nested property",
type: "object",
defaultValue: { limits: { maximum: 12 } },
});
write(project, "segments/member.json", {
description: "A segment with all condition leaf kinds",
conditions: [
"dutch",
{ feature: "checkout" },
{ variable: "policy", path: "limits.maximum", operator: "greaterThan", value: 10 },
],
});
write(project, "variables/screen.json", {
description: "Composition keeps its source dependencies in a filtered Target",
conditions: "member",
disabledValue: { ready: false, limit: null },
compose: {
ready: { feature: "checkout" },
limit: { variable: "policy" },
},
});
write(project, "targets/screen.json", {
description: "Composition closure and specialized country",
includeVariables: ["screen"],
context: { country: "nl" },
});
write(project, "tests/member.spec.json", {
segment: "member",
assertions: [
{
...environment,
at: 50,
context: { country: "nl", userId: "member" },
expectedToMatch: true,
},
{
...environment,
at: 50,
context: { country: "de", userId: "member" },
expectedToMatch: false,
},
{
...environment,
at: 50,
target: "screen",
context: { country: "de", userId: "member" },
expectedToMatch: true,
},
{
...environment,
at: 50,
stickyFeatures: { checkout: { enabled: false } },
context: { country: "nl", userId: "member" },
expectedToMatch: false,
},
{
...environment,
at: 50,
stickyVariables: { policy: { limits: { maximum: 1 } } },
context: { country: "nl", userId: "member" },
expectedToMatch: false,
},
],
});
write(project, "variables/maintenance.json", {
description: "Kill switch read by a feature gate",
type: "boolean",
defaultValue: false,
});
const gatedRules = [{ key: "available", conditions: "*", percentage: 100 }];
write(project, "features/gated.json", {
description: "Feature gated on a global variable",
bucketBy: "userId",
conditions: [{ variable: "maintenance", operator: "equals", value: false }],
rules: environments ? { production: gatedRules } : gatedRules,
});
// Feature assertions and their children each own their sticky values.
// Children do not inherit them from the parent assertion.
write(project, "tests/gated.spec.json", {
feature: "gated",
assertions: [
{
...environment,
key: "maintenance",
at: 50,
stickyVariables: { maintenance: true },
expectedToBeEnabled: false,
children: [
{ stickyVariables: { maintenance: false }, expectedToBeEnabled: true },
{ expectedToBeEnabled: true },
{ stickyFeatures: { gated: { enabled: false } }, expectedToBeEnabled: false },
],
},
{
...environment,
key: "sticky-feature",
at: 50,
stickyFeatures: { gated: { enabled: false } },
expectedToBeEnabled: false,
children: [{ expectedToBeEnabled: true }],
},
],
});
write(project, "tests/attributeOnly.spec.json", {
segment: "dutch",
assertions: [{ context: { country: "nl" }, expectedToMatch: true }],
});
write(project, "tests/dependent-checks.spec.json", {
...environment,
target: "screen",
at: 50,
context: { country: "de", userId: "member" },
checks: [
{ segment: "member", matches: true },
{ variable: "screen", path: "ready", operator: "equals", value: true },
{ variable: "screen", path: "limit.limits.maximum", operator: "equals", value: 12 },
],
children: [
{ context: { country: "nl" }, checks: [{ segment: "member", matches: true }] },
{
context: { country: "nl" },
stickyFeatures: { checkout: { enabled: false } },
checks: [{ segment: "member", matches: false }],
},
],
});
return project;
}
function assertionErrors(report) {
return report.results
.flatMap((spec) =>
spec.cases.flatMap((testCase) =>
testCase.errors.map((error) => ({
source: spec.source,
type: error.type,
path: error.path,
expected: error.expected,
actual: error.actual,
})),
),
)
.sort((a, b) =>
JSON.stringify([a.source, a.path]).localeCompare(JSON.stringify([b.source, b.path])),
);
}
try {
const names = selected.length ? selected : Object.keys(runners);
const semverProject = createSemverProject(root, join(temporary, "version comparisons"));
const assertionProject = assertionFailureFixture();
const expectedAssertionErrors = assertionErrors(execute("javascript", assertionProject, []));
assert.equal(expectedAssertionErrors.length, 10);
for (const name of names) assert.ok(runners[name], `Unknown runner ${name}`);
const examples = ["example-1", "example-test-environments", "example-composition"].map((name) => {
const directory = join(root, "examples", name);
const baseline = execute("javascript", directory, []);
assert.equal(baseline.passed, true, `${name}: JavaScript example baseline failed`);
return { name, directory, summary: baseline.summary };
});
const project = fixture("project with spaces");
const dependentProjects = [true, false].map((environments) => {
const project = dependentSegmentsFixture(environments);
const baseline = execute("javascript", project, ["--coverage"]);
assert.equal(baseline.passed, true, JSON.stringify(baseline));
assert.deepEqual(baseline.summary.assertions, { passed: 9, failed: 0 });
return { project, baseline };
});
const collisionProject = collisionFixture();
const unicodeProject = fixture("unicode roundtrip");
const unicodeDateProject = fixture("unicode timestamp errors");
write(unicodeDateProject, "variables/invalidTimestamp.json", {
description: "An evaluated string is not a valid portable timestamp",
type: "string",
defaultValue: "٢٠٢٦-٠١-٠١T00:00:00Z",
});
write(unicodeDateProject, "tests/invalidTimestamp.spec.json", {
variable: "invalidTimestamp",
assertions: [
{
environment: "production",
checks: [{ operator: "before", value: "2027-01-01T00:00:00Z" }],
},
],
});
write(unicodeProject, "variables/greeting.json", {
description: "Réel Café 東京 🧪",
tags: ["all"],
type: "string",
defaultValue: "Réel Café 東京 🧪",
});
write(unicodeProject, "tests/greeting.spec.json", {
variable: "greeting",
assertions: [
{
environment: "production",
description: "Vérification Café 東京 🧪",
context: { message: "Contexte Café 東京 🧪" },
expectedValue: "Attendu Café 東京 🧪",
// Checks expose structured operands even when native assertion errors are generic.
checks: [{ variable: "greeting", operator: "equals", value: "Attendu Café 東京 🧪" }],
},
],
});
const setProject = fixture("sets", true);
const invalidProject = fixture("unknown scenario property");
const preflightProject = fixture("reference preflight");
const preflightCases = [
{
or: [
{ feature: "checkout", enabled: true },
{ feature: "missing", enabled: false },
],
},
{
and: [
{ feature: "checkout", enabled: false },
{ variable: "missing", operator: "isNull" },
],
},
{
not: [
{ feature: "checkout", enabled: false },
{ feature: "checkout", variable: "missing", operator: "isNull" },
],
},
{
or: [
{ feature: "checkout", enabled: true },
{ variable: "minimum", operator: "equals", compareTo: { variable: "missing" } },
],
},
{
or: [
{ feature: "checkout", enabled: true },
{ variable: "unusedValue", operator: "notNull" },
],
},
];
for (const [index, check] of preflightCases.entries()) {
for (const child of [false, true]) {
write(preflightProject, `tests/preflight/${index}-${child}.spec.json`, {
environment: "production",
target: "checks",
...(child
? { checks: [{ feature: "checkout", enabled: true }], children: [{ checks: [check] }] }
: { checks: [check] }),
});
}
}
write(preflightProject, "variables/preflight/owned.json", {
description: "Owning variable must not evaluate before child reference validation",
type: "integer",
defaultValue: 5,
});
write(preflightProject, "tests/preflight/owned-variable.spec.json", {
variable: "preflight.owned",
assertions: [
{
environment: "production",
expectedValue: 5,
children: [{ checks: [{ variable: "missing", operator: "isNull" }] }],
},
],
});
write(invalidProject, "tests/arbitrary/invalid.spec.json", {
environment: "production",
checks: [{ feature: "checkout", enabled: true }],
unexpectedProperty: true,
});
const baseline = execute("javascript", project, ["--coverage", "--uncovered"]);
assert.equal(baseline.passed, false);
assert.deepEqual(baseline.summary.assertions, { passed: 4, failed: 2 });
assert.equal(baseline.results.find((spec) => spec.type === "scenario").key, "journeys.limits");
assert.deepEqual(baseline.uncovered, [
{ set: null, features: ["unused"], variables: ["unusedValue"] },
]);
for (const name of names) {
for (const { project, baseline } of dependentProjects) {
const dependentReport = execute(name, project, ["--coverage"]);
assert.deepEqual(
comparable(dependentReport),
comparable(baseline),
`${name}: dependent segment specs, authored checks or specialized Target semantics differ in ${project}`,
);
assert.ok(
dependentReport.coverage.selections.every(
(entry) =>
!entry.featureKey || ["checkout", "unused", "gated"].includes(entry.featureKey),
),
`${name}: synthetic segment helper leaked into observed coverage`,
);
}
const aliasSelection = ["--key-pattern=*", "--entity-type=feature", "--only-failures"];
const camelSelection = ["--keyPattern=*", "--entityType=feature", "--onlyFailures"];
const camelReport = execute(name, project, camelSelection);
for (const directoryOption of ["root-directory-path", "rootDirectoryPath"]) {
const aliasReport = execute(
name,
project,
[`--${directoryOption}=${project}`, ...aliasSelection],
true,
);
assert.deepEqual(
comparable(aliasReport),
comparable(camelReport),
`${name}: option aliases differ`,
);
}
assertSemverReport(execute(name, semverProject.project, []), semverProject, name);
assert.deepEqual(
assertionErrors(execute(name, assertionProject, [])),
expectedAssertionErrors,
`${name}: ordinary assertion error fields differ`,
);
const collision = execute(name, collisionProject, []);
assert.equal(
collision.passed,
true,
`${name}: datafile cache collision: ${JSON.stringify(collision)}`,
);
assert.deepEqual(collision.summary.assertions, { passed: 12, failed: 0 });
const invalidSet = execute(name, join(root, "examples/example-yml"), ["--set=does-not-exist"]);
assert.equal(invalidSet.passed, false, `${name}: silently ignored --set without Sets`);
assert.ok(invalidSet.errors.length, `${name}: missing Set selection error`);
for (const example of examples) {
const report = execute(name, example.directory, []);
assert.equal(
report.passed,
true,
`${name}: ${example.name} failed: ${JSON.stringify({
summary: report.summary,
errors: report.errors,
results: report.results
.filter((spec) => !spec.passed)
.map((spec) => ({ ...spec, cases: spec.cases.filter((testCase) => !testCase.passed) })),
})}`,
);
assert.deepEqual(report.summary, example.summary, `${name}: ${example.name} totals differ`);
if (example.name === "example-1") {
// Unsetting LANG alone may still inherit a UTF-8 LC_CTYPE.
// Structured reports currently have no timing fields, so compare every field.
const hostileReport = execute(name, example.directory, [], false, undefined, true);
assert.deepEqual(
hostileReport,
report,
`${name}: C locale changed the full example report`,
);
}
}
const unicodeReport = execute(name, unicodeProject, ["--keyPattern=^greeting$"]);
const dateReport = execute(name, unicodeDateProject, ["--keyPattern=^invalidTimestamp$"]);
assert.equal(
dateReport.summary.assertions.failed,
1,
`${name}: Unicode timestamp was accepted`,
);
assert.ok(dateReport.results[0]?.cases[0]?.errors.length, `${name}: missing timestamp error`);
const unicodeCase = unicodeReport.results[0]?.cases[0];
assert.equal(unicodeReport.summary.assertions.failed, 1, `${name}: unicode case did not fail`);
assert.ok(unicodeCase?.description.endsWith("Vérification Café 東京 🧪"));
assert.equal(unicodeCase?.context.message, "Contexte Café 東京 🧪");
// Native runners may expose the values in a typed field or error message.
const unicodeErrors = JSON.stringify(unicodeCase?.errors);
assert.ok(unicodeErrors.includes("Attendu Café 東京 🧪"), `${name}: ${unicodeErrors}`);
assert.ok(unicodeErrors.includes("Réel Café 東京 🧪"), `${name}: ${unicodeErrors}`);
const hostileUnicodeReport = execute(
name,
unicodeProject,
["--keyPattern=^greeting$"],
false,
undefined,
true,
);
assert.deepEqual(
hostileUnicodeReport,
unicodeReport,
`${name}: C locale changed the full unicode report`,
);
const report = execute(name, project, ["--coverage", "--uncovered"]);
assert.deepEqual(
comparable(report),
comparable(baseline),
`${name}: report identity or outcomes differ`,
);
assert.deepEqual(report.uncovered, baseline.uncovered, `${name}: association gaps differ`);
const verbose = execute(name, project, ["--pretty", "--verbose", "--showDatafile"]);
assert.deepEqual(
comparable(verbose),
comparable(baseline),
`${name}: output flags changed case outcomes`,
);
assert.equal(report.coverage.mode, "observed-selections");
assert.ok(
report.coverage.selections.some(
(entry) => entry.featureKey === "checkout" && entry.ruleKey === "available",
),
`${name}: selected feature rule missing`,
);
assert.ok(
report.coverage.selections.some(
(entry) => entry.variableKey === "minimum" && entry.overridePath?.includes("netherlands"),
),
`${name}: selected override missing`,
);
const cases = report.results.flatMap((spec) => spec.cases);
const missingCase = report.results
.find((spec) => spec.type === "variable" && spec.key === "settings")
.cases.find((testCase) => !testCase.passed);
assert.ok(
missingCase.errors[0].details?.evaluated?.some((leaf) => leaf.actualMissing === true),
`${name}: missing path needs explicit presence evidence, not null or an ambiguous string`,
);
const failedScenario = report.results
.find((spec) => spec.type === "scenario")
.cases.find((testCase) => !testCase.passed);
assert.ok(
failedScenario.errors.some(
(error) => JSON.stringify(error.path) === JSON.stringify(["checks", 1]),
),
`${name}: root check authored path missing`,
);
const segmentError = failedScenario.errors.find(
(error) => error.details?.checkKey === "audience",
);
assert.ok(segmentError, `${name}: missing segment check failure`);
assert.ok(
segmentError.details.evaluated.some(
(leaf) =>
leaf.reference?.segment === "dutch" &&
leaf.property === "matches" &&
leaf.actual === true &&
leaf.expected === false,
),
`${name}: missing segment evidence`,
);
assert.ok(
failedScenario.errors.some(
(error) => JSON.stringify(error.path) === JSON.stringify(["children", 1, "checks", 0]),
),
`${name}: child check authored path missing`,
);
for (const testCase of cases) {
assert.ok(Array.isArray(testCase.errors));
if (!testCase.passed) assert.ok(testCase.errors.length);
assert.ok(
testCase.rerun.args.some(
(arg) =>
arg ===
`--${name === "javascript" ? "rootDirectoryPath" : "projectDirectoryPath"}=${project}`,
),
`${name}: explicit project directory missing from rerun`,
);
const rerun = execute(name, project, testCase.rerun.args.slice(1), true, testCase.rerun);
assert.equal(
rerun.summary.assertions.passed + rerun.summary.assertions.failed,
1,
`${name}: exact rerun of ${testCase.id} failed: ${JSON.stringify(rerun)}`,
);
assert.equal(rerun.passed, testCase.passed);
assert.equal(rerun.results[0].cases[0].id, testCase.id);
}
const unknown = execute(name, project, ["--case=does-not-exist"]);
assert.equal(unknown.passed, false);
assert.ok(unknown.errors.length);
const invalid = execute(name, invalidProject, []);
assert.equal(invalid.passed, false, `${name}: unknown scenario property was accepted`);
assert.ok(invalid.errors.length, `${name}: invalid authoring needs a reported error`);
const preflight = execute(name, preflightProject, ["--keyPattern=^preflight\\.", "--coverage"]);
assert.equal(preflight.passed, false, `${name}: skipped invalid reference passed`);
assert.equal(
preflight.summary.assertions.passed,
0,
`${name}: every invalid reference must fail`,
);
assert.equal(preflight.summary.assertions.failed, 11, `${name}: missing preflight cases`);
assert.deepEqual(
preflight.coverage.selections,
[],
`${name}: evaluated a getter before preflight completed`,
);
const setReport = execute(name, setProject, ["--set=staging"]);
const setBaseline = execute("javascript", setProject, ["--set=staging"]);
assert.deepEqual(comparable(setReport), comparable(setBaseline));
const failed = setReport.results
.flatMap((spec) => spec.cases)
.find((testCase) => !testCase.passed);
const boundsError = failedScenario.errors.find(
(error) => JSON.stringify(error.path) === JSON.stringify(["checks", 1]),
);
assert.equal(boundsError?.type, "check", `${name}: typed check error missing`);
assert.equal(boundsError.expected, true);
assert.equal(boundsError.actual, false);
assert.equal(boundsError.details?.checkKey, "bounds");
assert.ok(
boundsError.details?.evaluated?.some(
(leaf) =>
leaf.reference?.variable === "minimum" &&
leaf.actual === 12 &&
leaf.expected === 10 &&
leaf.compareTo?.variable === "maximum",
),
`${name}: typed operand evidence missing`,
);
const rerun = execute(name, setProject, failed.rerun.args.slice(1), true, failed.rerun);
assert.equal(rerun.summary.assertions.failed, 1);
const implicitSet = execute(name, setProject, [`--case=${failed.id}`]);
assert.equal(
implicitSet.summary.assertions.failed,
1,
`${name}: exact case should find its set without an explicit set flag`,
);
assert.equal(implicitSet.results[0].set, "staging");
console.log(
`✓ ${name}: example-1 (including C locale), example-test-environments, example-composition, dependent segments with and without environments, ${semverProject.comparisons} version comparisons, typed assertion failures, authored specs, preflight, matrix identities, exact reruns, coverage and sets`,
);
}
console.log(`Runner conformance passed for ${names.length} runners.`);
} finally {
rmSync(temporary, { recursive: true, force: true });
}
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