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Aug 20, 2026
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test: add unit tests for buildProfile style analysis #262

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test: add unit tests for buildProfile style analysis
Krshs90 Aug 6, 2026
72ec885
refactor(tests): centralize isolated environment setup in withTempHom…
Krshs90 Aug 20, 2026
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117 changes: 65 additions & 52 deletions tests/history-profile.test.mjs
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Original file line number Diff line number Diff line change
Expand Up @@ -43,7 +43,7 @@ function restoreEnv(name, value) {
}
}

test('buildProfile counts descriptive verb forms in the imperative-rate denominator', async () => {
async function withTempHome(callback) {
const originalHome = process.env.HOME;
const originalAppData = process.env.APPDATA;
const originalXdgConfigHome = process.env.XDG_CONFIG_HOME;
Expand All @@ -53,90 +53,57 @@ test('buildProfile counts descriptive verb forms in the imperative-rate denomina
process.env.HOME = tempHome;
process.env.APPDATA = join(tempHome, 'AppData', 'Roaming');
process.env.XDG_CONFIG_HOME = join(tempHome, '.config');
writeHistory(tempHome, ['fix: add retries', 'fix: added retries', 'fix: adding retries']);

const profile = await buildProfile(10);

assert.equal(profile.totalCommits, 3);
assert.equal(profile.imperativeRate, 1 / 3);
return await callback(tempHome);
} finally {
restoreEnv('HOME', originalHome);
restoreEnv('APPDATA', originalAppData);
restoreEnv('XDG_CONFIG_HOME', originalXdgConfigHome);
rmSync(tempHome, { recursive: true, force: true });
}
}

test('buildProfile counts descriptive verb forms in the imperative-rate denominator', async () => {
await withTempHome(async (tempHome) => {
writeHistory(tempHome, ['fix: add retries', 'fix: added retries', 'fix: adding retries']);

const profile = await buildProfile(10);

assert.equal(profile.totalCommits, 3);
assert.equal(profile.imperativeRate, 1 / 3);
});
});

test('buildProfile recognizes base-form verbs that end in descriptive suffixes', async () => {
const originalHome = process.env.HOME;
const originalAppData = process.env.APPDATA;
const originalXdgConfigHome = process.env.XDG_CONFIG_HOME;
const tempHome = mkdtempSync(join(tmpdir(), 'commit-echo-home-'));

try {
process.env.HOME = tempHome;
process.env.APPDATA = join(tempHome, 'AppData', 'Roaming');
process.env.XDG_CONFIG_HOME = join(tempHome, '.config');
await withTempHome(async (tempHome) => {
writeHistory(tempHome, ['fix: add retries', 'fix: Bring retries', 'fix: added retries']);

const profile = await buildProfile(10);

assert.equal(profile.totalCommits, 3);
assert.equal(profile.imperativeRate, 2 / 3);
} finally {
restoreEnv('HOME', originalHome);
restoreEnv('APPDATA', originalAppData);
restoreEnv('XDG_CONFIG_HOME', originalXdgConfigHome);
rmSync(tempHome, { recursive: true, force: true });
}
});
});

test('buildProfile recognizes prefix-derived base-form verbs as imperative', async () => {
const originalHome = process.env.HOME;
const originalAppData = process.env.APPDATA;
const originalXdgConfigHome = process.env.XDG_CONFIG_HOME;
const tempHome = mkdtempSync(join(tmpdir(), 'commit-echo-home-'));

try {
process.env.HOME = tempHome;
process.env.APPDATA = join(tempHome, 'AppData', 'Roaming');
process.env.XDG_CONFIG_HOME = join(tempHome, '.config');
await withTempHome(async (tempHome) => {
writeHistory(tempHome, ['fix: reseed database', 'fix: preseed retries', 'fix: adding retries']);

const profile = await buildProfile(10);

assert.equal(profile.totalCommits, 3);
assert.equal(profile.imperativeRate, 2 / 3);
} finally {
restoreEnv('HOME', originalHome);
restoreEnv('APPDATA', originalAppData);
restoreEnv('XDG_CONFIG_HOME', originalXdgConfigHome);
rmSync(tempHome, { recursive: true, force: true });
}
});
});

test('buildProfile recognizes ed-suffix base-form verbs not in the base allowlist', async () => {
const originalHome = process.env.HOME;
const originalAppData = process.env.APPDATA;
const originalXdgConfigHome = process.env.XDG_CONFIG_HOME;
const tempHome = mkdtempSync(join(tmpdir(), 'commit-echo-home-'));

try {
process.env.HOME = tempHome;
process.env.APPDATA = join(tempHome, 'AppData', 'Roaming');
process.env.XDG_CONFIG_HOME = join(tempHome, '.config');
await withTempHome(async (tempHome) => {
writeHistory(tempHome, ['fix: succeed after retry', 'fix: weed stale entries', 'fix: adding retries']);

const profile = await buildProfile(10);

assert.equal(profile.totalCommits, 3);
assert.equal(profile.imperativeRate, 2 / 3);
} finally {
restoreEnv('HOME', originalHome);
restoreEnv('APPDATA', originalAppData);
restoreEnv('XDG_CONFIG_HOME', originalXdgConfigHome);
rmSync(tempHome, { recursive: true, force: true });
}
});
});

test('formatProfile reports the empty-history fallback', () => {
Expand Down Expand Up @@ -194,3 +161,49 @@ test('formatProfile renders dominant tone, capitalization, scope, body, and pref
assert.match(output, /Body usage: 50%/);
assert.match(output, /Common prefixes: fix: \(75%\), feat: \(25%\)/);
});

test('buildProfile computes scope-usage ratio', async () => {
await withTempHome(async (tempHome) => {
writeHistory(tempHome, [
'feat(auth): add login',
'fix: resolve crash',
'docs(readme): update',
'style: format code',
]);

const profile = await buildProfile(10);

assert.equal(profile.totalCommits, 4);
assert.equal(profile.usesScopeRate, 0.5);
});
});

test('buildProfile computes body-usage ratio', async () => {
await withTempHome(async (tempHome) => {
writeHistory(tempHome, [
'feat: no body',
'fix: with body\n\nThis is a body.',
'docs: no body',
'style: with body\n\nBody line 1\nBody line 2',
]);

const profile = await buildProfile(10);

assert.equal(profile.totalCommits, 4);
assert.equal(profile.usesBodyRate, 0.5);
});
});

test('buildProfile handles empty history', async () => {
await withTempHome(async (tempHome) => {
writeHistory(tempHome, []);

const profile = await buildProfile(10);

assert.equal(profile.totalCommits, 0);
assert.equal(profile.usesScopeRate, 0);
assert.equal(profile.usesBodyRate, 0);
assert.equal(profile.imperativeRate, 0);
assert.equal(profile.sentenceCaseRate, 0);
});
});