feat(core): add Electron runtime, services, and app composition

src/core/services/frequency-dictionary.test.ts

@@ -0,0 +1,81 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import fs from 'node:fs';
+import os from 'node:os';
+import path from 'node:path';
+
+import { createFrequencyDictionaryLookup } from './frequency-dictionary';
+
+test('createFrequencyDictionaryLookup logs parse errors and returns no-op for invalid dictionaries', async () => {
+  const logs: string[] = [];
+  const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), 'subminer-frequency-dict-'));
+  const bankPath = path.join(tempDir, 'term_meta_bank_1.json');
+  fs.writeFileSync(bankPath, '{ invalid json');
+
+  const lookup = await createFrequencyDictionaryLookup({
+    searchPaths: [tempDir],
+    log: (message) => {
+      logs.push(message);
+    },
+  });
+
+  const rank = lookup('猫');
+
+  assert.equal(rank, null);
+  assert.equal(
+    logs.some(
+      (entry) =>
+        entry.includes('Failed to parse frequency dictionary file as JSON') &&
+        entry.includes('term_meta_bank_1.json'),
+    ),
+    true,
+  );
+});
+
+test('createFrequencyDictionaryLookup continues with no-op lookup when search path is missing', async () => {
+  const logs: string[] = [];
+  const missingPath = path.join(os.tmpdir(), 'subminer-frequency-dict-missing-dir');
+  const lookup = await createFrequencyDictionaryLookup({
+    searchPaths: [missingPath],
+    log: (message) => {
+      logs.push(message);
+    },
+  });
+
+  assert.equal(lookup('猫'), null);
+  assert.equal(
+    logs.some((entry) => entry.includes(`Frequency dictionary not found.`)),
+    true,
+  );
+});
+
+test('createFrequencyDictionaryLookup aggregates duplicate-term logs into a single summary', async () => {
+  const logs: string[] = [];
+  const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), 'subminer-frequency-dict-'));
+  const bankPath = path.join(tempDir, 'term_meta_bank_1.json');
+  fs.writeFileSync(
+    bankPath,
+    JSON.stringify([
+      ['猫', 1, { frequency: { displayValue: 100 } }],
+      ['猫', 2, { frequency: { displayValue: 120 } }],
+      ['猫', 3, { frequency: { displayValue: 110 } }],
+    ]),
+  );
+
+  const lookup = await createFrequencyDictionaryLookup({
+    searchPaths: [tempDir],
+    log: (message) => {
+      logs.push(message);
+    },
+  });
+
+  assert.equal(lookup('猫'), 100);
+  assert.equal(
+    logs.filter((entry) => entry.includes('Frequency dictionary ignored 2 duplicate term entries')).length,
+    1,
+  );
+  assert.equal(
+    logs.some((entry) => entry.includes('Frequency dictionary duplicate term')),
+    false,
+  );
+});