refactor: centralize provider projections

2026-10-01 20:53:00 +03:00
parent 190eb90ffe
commit 7fe88a12c7
7 changed files with 179 additions and 154 deletions
@@ -0,0 +1,19 @@
+import { toSavedCandle } from './tbank-candle.mapper';
+
+describe('T-Bank candle mapping', () => {
+  it('keeps signed nano precision and requires explicit completeness', () => {
+    const input = { time: { seconds: '1767225600' }, close: { units: '0', nano: -1 } };
+    expect(toSavedCandle(input)).toEqual({
+      time: '2026-01-01T00:00:00.000Z', close: '-0.000000001', isComplete: false,
+    });
+    expect(toSavedCandle({ ...input, isComplete: true }).isComplete).toBe(true);
+    expect(input).toEqual({ time: { seconds: '1767225600' }, close: { units: '0', nano: -1 } });
+  });
+  it.each([
+    { close: { units: '1' } },
+    { time: { seconds: 'invalid' }, close: { units: '1' } },
+    { time: { seconds: '1767225600' } },
+  ])('rejects missing or malformed source fields: %j', (input) => {
+    expect(() => toSavedCandle(input)).toThrow('Invalid candle response');
+  });
+});