finish integration test

Author: dconeybe

Firestore/Example/Tests/Integration/API/FIRQueryTests.mm

@@ -1290,6 +1290,10 @@ - (void)testResumingAQueryShouldUseExistenceFilterToDetectDeletes {
 
   // Verify that Watch sent an existence filter with the correct counts when the query was resumed.
   XCTAssertEqual(static_cast<int>(existence_filter_mismatches.size()), 1);
+  firebase::firestore::util::TestingHooks::ExistenceFilterMismatchInfo &info =
+      existence_filter_mismatches[0];
+  XCTAssertEqual(info.local_cache_count, 100);
+  XCTAssertEqual(info.existence_filter_count, 50);
 }
 
 @end

Firestore/core/src/util/testing_hooks.h

@@ -44,8 +44,8 @@ class TestingHooks final {
    * registered with `OnExistenceFilterMismatch()`.
    */
   struct ExistenceFilterMismatchInfo {
-    int localCacheCount = -1;
-    int existenceFilterCount = -1;
+    int local_cache_count = -1;
+    int existence_filter_count = -1;
   };
 
   using ExistenceFilterMismatchCallback =

Firestore/core/test/unit/testutil/async_testing.h

@@ -21,10 +21,10 @@
 #include <functional>
 #include <future>  // NOLINT(build/c++11)
 #include <memory>
-#include <mutex>  // NOLINT(build/c++11)
+#include <mutex>   // NOLINT(build/c++11)
 #include <thread>  // NOLINT(build/c++11)
-#include <vector>
 #include <utility>
+#include <vector>
 
 #include "gtest/gtest.h"
 

Firestore/core/test/unit/util/testing_hooks_test.cc

@@ -50,8 +50,8 @@ class TestingHooksTest : public ::testing::Test, public AsyncTest {
     Await(accumulator->WaitForObject());
     ASSERT_FALSE(accumulator->IsEmpty());
     TestingHooks::ExistenceFilterMismatchInfo info = accumulator->Shift();
-    EXPECT_EQ(info.localCacheCount, expected.localCacheCount);
-    EXPECT_EQ(info.existenceFilterCount, expected.existenceFilterCount);
+    EXPECT_EQ(info.local_cache_count, expected.local_cache_count);
+    EXPECT_EQ(info.existence_filter_count, expected.existence_filter_count);
   }
 
   std::future<void> NotifyOnExistenceFilterMismatchAsync(