SPM: Build and unit test RTDB (#6022)

Author: paulb777

FirebaseDatabase/Sources/Firebase-Prefix.pch

@@ -26,7 +26,10 @@ @implementation FTestBase
 + (void)setUp {
   static dispatch_once_t once;
   dispatch_once(&once, ^{
+#if !SWIFT_PACKAGE
+    // Disabled for now with SPM. configure is not needed for the unit tests.
     [FIRApp configure];
+#endif
   });
 }
 

FirebaseDatabase/Sources/Info.plist

@@ -464,10 +464,13 @@ - (void)runTest:(NSDictionary *)testSpec atBasePath:(NSString *)basePath {
 
 - (NSArray *)loadSpecs {
   static NSArray *json;
+#if SWIFT_PACKAGE
+  NSBundle *bundle = Firebase_DatabaseUnit_SWIFTPM_MODULE_BUNDLE();
+#else
+  NSBundle *bundle = [NSBundle bundleForClass:[FSyncPointTests class]];
+#endif
   if (json == nil) {
-    NSString *syncPointSpec =
-        [[NSBundle bundleForClass:[FSyncPointTests class]] pathForResource:@"syncPointSpec"
-                                                                    ofType:@"json"];
+    NSString *syncPointSpec = [bundle pathForResource:@"syncPointSpec" ofType:@"json"];
     NSLog(@"%@", syncPointSpec);
     NSData *specData = [NSData dataWithContentsOfFile:syncPointSpec];
     NSError *error = nil;

FirebaseDatabase/Sources/third_party/FImmutableSortedDictionary/FImmutableSortedDictionary/FImmutableSortedDictionary-Prefix.pch

@@ -76,8 +76,8 @@ let package = Package(
       url: "https://github.com/paulb777/nanopb.git",
       .branch("swift-package-manager")
     ),
-    .package(name: "OCMock", url: "https://github.com/paulb777/ocmock.git",
-             .revision("7291762")),
+    .package(name: "OCMock", url: "https://github.com/paulb777/ocmock.git", .revision("7291762")),
+    .package(name: "leveldb", url: "https://github.com/paulb777/leveldb.git", .revision("3f04697")),
     // Branches need a force update with a run with the revision set like below.
     //   .package(url: "https://github.com/paulb777/nanopb.git", .revision("564392bd87bd093c308a3aaed3997466efb95f74"))
   ],
@@ -93,6 +93,7 @@ let package = Package(
         "Firebase",
         "FirebaseCrashlytics",
         "FirebaseCore",
+        "FirebaseDatabase",
         "FirebaseInstallations",
         // "FirebaseInstanceID",
         "FirebaseRemoteConfig",
@@ -349,6 +350,38 @@ let package = Package(
         .define("PB_ENABLE_MALLOC", to: "1"),
       ]
     ),
+    .target(
+      name: "FirebaseDatabase",
+      dependencies: [
+        "FirebaseCore",
+        "leveldb",
+      ],
+      path: "FirebaseDatabase/Sources",
+      exclude: [
+        "third_party/Wrap-leveldb/LICENSE",
+        "third_party/SocketRocket/LICENSE",
+        "third_party/FImmutableSortedDictionary/LICENSE",
+        "third_party/SocketRocket/aa2297808c225710e267afece4439c256f6efdb3",
+      ],
+      publicHeadersPath: "Public",
+      cSettings: [
+        .headerSearchPath("../../"),
+        .define("FIRDatabase_VERSION", to: "0.0.1"), // TODO: Fix version
+      ]
+    ),
+    .testTarget(
+      name: "DatabaseUnit",
+      dependencies: ["FirebaseDatabase", "OCMock", "SharedTestUtilities"],
+      path: "FirebaseDatabase/Tests/",
+      exclude: [
+        "Integration/",
+      ],
+      resources: [.process("Resources")],
+      cSettings: [
+        .headerSearchPath("../.."),
+      ]
+    ),
+
     .target(
       name: "FirebaseFunctions",
       dependencies: [
@@ -484,5 +517,6 @@ let package = Package(
       ]
     ),
   ],
-  cLanguageStandard: .c99
+  cLanguageStandard: .c99,
+  cxxLanguageStandard: CXXLanguageStandard.gnucxx14
 )