From 5fd110ed2353cb2491ee510b451242bfc9ee0a0c Mon Sep 17 00:00:00 2001
From: eric <eric@chain-bytes.com>
Date: Sun, 5 Apr 2026 18:01:48 -0400
Subject: [PATCH] test: add 8 export route tests for CSV/JSON payroll export

Covers: default CSV, explicit CSV, JSON array, 404 non-existent farm,
400 invalid format, case-insensitive format param, unpaid payment status
default, and empty farm header-only CSV.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 backend/test/api.test.js | 74 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)

diff --git a/backend/test/api.test.js b/backend/test/api.test.js
index e55d0cb..41ad622 100644
--- a/backend/test/api.test.js
+++ b/backend/test/api.test.js
@@ -1250,3 +1250,77 @@ describe('Multi-farm support and data isolation', () => {
   });
 });
 
+// ------------------------------------------------------------------ export
+
+describe('Export', () => {
+  test('GET /farm/:id/export returns CSV by default', async () => {
+    const res = await get(`/farm/${farmId}/export`);
+    assert.equal(res.status, 200);
+    assert.ok(typeof res.body === 'string', 'CSV response should be a string');
+    assert.ok(res.body.includes('worker_name,shift_date,checked_in_at,amount_sats,payment_status'),
+      'CSV should contain header row');
+  });
+
+  test('GET /farm/:id/export?format=csv returns CSV with header', async () => {
+    const res = await get(`/farm/${farmId}/export?format=csv`);
+    assert.equal(res.status, 200);
+    assert.ok(typeof res.body === 'string');
+    const lines = res.body.trim().split('\r\n');
+    assert.ok(lines.length >= 1, 'Should have at least a header line');
+    assert.equal(lines[0], 'worker_name,shift_date,checked_in_at,amount_sats,payment_status');
+  });
+
+  test('GET /farm/:id/export?format=json returns JSON array', async () => {
+    const res = await get(`/farm/${farmId}/export?format=json`);
+    assert.equal(res.status, 200);
+    assert.ok(Array.isArray(res.body), 'JSON export should be an array');
+    if (res.body.length > 0) {
+      const row = res.body[0];
+      assert.ok('worker_name' in row);
+      assert.ok('shift_date' in row);
+      assert.ok('checked_in_at' in row);
+      assert.ok('amount_sats' in row);
+      assert.ok('payment_status' in row);
+    }
+  });
+
+  test('GET /farm/:id/export returns 404 for non-existent farm', async () => {
+    const res = await get('/farm/999999/export');
+    assert.equal(res.status, 404);
+    assert.equal(res.body.error, 'Farm not found');
+  });
+
+  test('GET /farm/:id/export?format=xml returns 400 for invalid format', async () => {
+    const res = await get(`/farm/${farmId}/export?format=xml`);
+    assert.equal(res.status, 400);
+    assert.ok(res.body.error.includes('Invalid format'));
+  });
+
+  test('GET /farm/:id/export?format=JSON is case-insensitive', async () => {
+    const res = await get(`/farm/${farmId}/export?format=JSON`);
+    assert.equal(res.status, 200);
+    assert.ok(Array.isArray(res.body), 'Uppercase JSON should work');
+  });
+
+  test('JSON export rows default to unpaid when no payment exists', async () => {
+    const res = await get(`/farm/${farmId}/export?format=json`);
+    assert.equal(res.status, 200);
+    if (res.body.length > 0) {
+      const unpaidRows = res.body.filter(r => r.payment_status === 'unpaid');
+      assert.ok(unpaidRows.length > 0, 'Checkins without payments should be unpaid');
+    }
+  });
+
+  test('CSV export for farm with no checkins returns header only', async () => {
+    const farmRes = await post('/farm', { name: 'Empty Export Farm', location: 'Nowhere', altitude_m: 500, owner_name: 'Nobody' });
+    assert.equal(farmRes.status, 201);
+    const emptyFarmId = farmRes.body.id;
+
+    const res = await get(`/farm/${emptyFarmId}/export`);
+    assert.equal(res.status, 200);
+    const lines = res.body.trim().split('\r\n');
+    assert.equal(lines.length, 1, 'Should only have header row for empty farm');
+    assert.equal(lines[0], 'worker_name,shift_date,checked_in_at,amount_sats,payment_status');
+  });
+});
+