[LogBox] Add LogBox.isIgnoredLog() for expo remote logging integration

Libraries/LogBox/LogBox.js

@@ -24,6 +24,7 @@ interface ILogBox {
   isInstalled(): boolean;
   ignoreLogs($ReadOnlyArray<IgnorePattern>): void;
   ignoreAllLogs(?boolean): void;
+  isIgnoredLog(...args: Array<mixed>): boolean;
   clearAllLogs(): void;
   addLog(log: LogData): void;
   addException(error: ExtendedExceptionData): void;
@@ -111,6 +112,18 @@ if (__DEV__) {
       LogBoxData.setDisabled(value == null ? true : value);
     },
 
+    isIgnoredLog(...args: Array<mixed>): boolean {
+      if (LogBoxData.isDisabled()) {
+        return true;
+      }
+
+      try {
+        const {message} = parseLogBoxLog(args);
+        return LogBoxData.isMessageIgnored(message.content);
+      } catch (err) {}
+      return false;
+    },
+
     clearAllLogs(): void {
       LogBoxData.clear();
     },
@@ -244,6 +257,10 @@ if (__DEV__) {
       // Do nothing.
     },
 
+    isIgnoredLog(...args: Array<mixed>): boolean {
+      return false;
+    },
+
     clearAllLogs(): void {
       // Do nothing.
     },

Libraries/LogBox/__tests__/LogBox-test.js

@@ -384,4 +384,46 @@ describe('LogBox', () => {
       'Custom: after installing for the second time',
     );
   });
+
+  it('`isIgnoredLog` returns true for ignored log', () => {
+    jest.unmock('../Data/LogBoxData');
+    LogBox.ignoreLogs(['ignoreMe']);
+    expect(LogBox.isIgnoredLog('ignoreMe: message', 'another argument')).toBe(
+      true,
+    );
+  });
+
+  it('`isIgnoredLog` returns true for regexp based ignored log', () => {
+    jest.unmock('../Data/LogBoxData');
+    LogBox.ignoreLogs([/ignore\d*Me/]);
+    expect(LogBox.isIgnoredLog('ignoreMe')).toBe(true);
+    expect(LogBox.isIgnoredLog('ignore123Me')).toBe(true);
+  });
+
+  it('`isIgnoredLog` returns true for any messages when `ignoreAllLogs` was called', () => {
+    jest.unmock('../Data/LogBoxData');
+    LogBox.ignoreAllLogs();
+    expect(LogBox.isIgnoredLog('any messsages')).toBe(true);
+  });
+
+  it('`isIgnoredLog` returns false for non-matched ignored log', () => {
+    jest.unmock('../Data/LogBoxData');
+    LogBox.ignoreLogs(['ignoreMe']);
+    expect(LogBox.isIgnoredLog('showMe: message', 'another argument')).toBe(
+      false,
+    );
+  });
+
+  it('`isIgnoredLog` returns false when throwing exception from log parser.', () => {
+    jest.mock('../Data/LogBoxData');
+    const mockError = new Error('Simulated error');
+
+    // Picking a random implemention detail to simulate throwing.
+    (LogBoxData.isMessageIgnored: any).mockImplementation(() => {
+      throw mockError;
+    });
+
+    LogBox.ignoreLogs(['ignoreMe']);
+    expect(LogBox.isIgnoredLog('ignoreMe')).toBe(false);
+  });
 });