From dd5ec20ad584b0f249d435356f8b68fc1122c560 Mon Sep 17 00:00:00 2001
From: findolor <anakisci@gmail.com>
Date: Fri, 20 Sep 2024 12:28:25 +0300
Subject: [PATCH 1/2] fix: add zero check to prevent division by zero

---
 tauri-app/src/lib/components/detail/TanstackOrderQuote.svelte | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tauri-app/src/lib/components/detail/TanstackOrderQuote.svelte b/tauri-app/src/lib/components/detail/TanstackOrderQuote.svelte
index e1eee6fae..1a013cc56 100644
--- a/tauri-app/src/lib/components/detail/TanstackOrderQuote.svelte
+++ b/tauri-app/src/lib/components/detail/TanstackOrderQuote.svelte
@@ -103,7 +103,9 @@
               <TableBodyCell
                 >{formatUnits(BigInt(item.data.ratio), 18)}
                 <span class="text-gray-400"
-                  >({formatUnits(10n ** 36n / BigInt(item.data.ratio), 18)})</span
+                  >({BigInt(item.data.ratio) > 0n
+                    ? formatUnits(10n ** 36n / BigInt(item.data.ratio), 18)
+                    : '0'})</span
                 ></TableBodyCell
               >
               <TableBodyCell

From 5b78ac0cf409ef0270fb59bcec88333b8857a77e Mon Sep 17 00:00:00 2001
From: findolor <anakisci@gmail.com>
Date: Fri, 20 Sep 2024 12:34:35 +0300
Subject: [PATCH 2/2] test: update test

---
 .../detail/TanstackOrderQuote.test.ts         | 35 +++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/tauri-app/src/lib/components/detail/TanstackOrderQuote.test.ts b/tauri-app/src/lib/components/detail/TanstackOrderQuote.test.ts
index c398f6a01..bddc242cd 100644
--- a/tauri-app/src/lib/components/detail/TanstackOrderQuote.test.ts
+++ b/tauri-app/src/lib/components/detail/TanstackOrderQuote.test.ts
@@ -177,3 +177,38 @@ test('displays error message when query fails', async () => {
     expect(errorCell).toBeInTheDocument();
   });
 });
+
+test('displays zero for price when io ratio is zero', async () => {
+  mockIPC((cmd) => {
+    if (cmd === 'batch_order_quotes') {
+      return [
+        {
+          success: true,
+          block_number: '0x123',
+          pair: { pair_name: 'ETH/USDT', input_index: 0, output_index: 1 },
+          data: { maxOutput: '0x158323e942e36d8c', ratio: '0x0' },
+          error: undefined,
+        } satisfies BatchOrderQuotesResponse,
+      ];
+    }
+  });
+
+  const queryClient = new QueryClient();
+
+  render(TanstackOrderQuote, {
+    props: {
+      id: '0x123',
+      order: mockOrderDetailsExtended.order,
+    },
+    context: new Map([['$$_queryClient', queryClient]]),
+  });
+
+  await waitFor(() => {
+    const orderQuoteComponent = screen.getByTestId('bodyRow');
+
+    expect(orderQuoteComponent).toHaveTextContent('ETH/USDT');
+    expect(orderQuoteComponent).toHaveTextContent('1.550122181502135692'); // maxOutput
+    expect(orderQuoteComponent).toHaveTextContent('0'); // ratio
+    expect(orderQuoteComponent).toHaveTextContent('(0)'); // inverse price
+  });
+});