1 files changed, 58 insertions, 0 deletions
diff --git a/platform/darwin/test/MGLOfflinePackTests.mm b/platform/darwin/test/MGLOfflinePackTests.mm
new file mode 100644
index 0000000000..6b454ee8ca
--- /dev/null
+++ b/platform/darwin/test/MGLOfflinePackTests.mm
@@ -0,0 +1,58 @@
+#import <Mapbox/Mapbox.h>
+#import <XCTest/XCTest.h>
+#import "MGLOfflinePack_Private.h"
+#import "MGLTestAssertionHandler.h"
+
+@interface MGLOfflinePackTests : XCTestCase
+
+@end
+
+@implementation MGLOfflinePackTests
+
+- (void)testInvalidation {
+    MGLOfflinePack *invalidPack = [[MGLOfflinePack alloc] init];
+
+    XCTAssertEqual(invalidPack.state, MGLOfflinePackStateInvalid, @"Offline pack should be invalid when initialized independently of MGLOfflineStorage.");
+
+    XCTAssertThrowsSpecificNamed(invalidPack.region, NSException, MGLInvalidOfflinePackException, @"Invalid offline pack should raise an exception when accessing its region.");
+    XCTAssertThrowsSpecificNamed(invalidPack.context, NSException, MGLInvalidOfflinePackException, @"Invalid offline pack should raise an exception when accessing its context.");
+    XCTAssertThrowsSpecificNamed([invalidPack resume], NSException, MGLInvalidOfflinePackException, @"Invalid offline pack should raise an exception when being resumed.");
+    XCTAssertThrowsSpecificNamed([invalidPack suspend], NSException, MGLInvalidOfflinePackException, @"Invalid offline pack should raise an exception when being suspended.");
+}
+
+- (void)testInvalidatingAnInvalidPack {
+    MGLOfflinePack *invalidPack = [[MGLOfflinePack alloc] init];
+
+    XCTAssertThrowsSpecificNamed([invalidPack invalidate], NSException, NSInternalInconsistencyException, @"Invalid offline pack should raise an exception when being invalidated.");
+
+    // Now try again, without asserts
+    NSAssertionHandler *oldHandler = [NSAssertionHandler currentHandler];
+    MGLTestAssertionHandler *newHandler = [[MGLTestAssertionHandler alloc] initWithTestCase:self];
+    [[[NSThread currentThread] threadDictionary] setValue:newHandler forKey:NSAssertionHandlerKey];
+
+    // Make sure this doesn't crash without asserts
+    [invalidPack invalidate];
+    
+    [[[NSThread currentThread] threadDictionary] setValue:oldHandler forKey:NSAssertionHandlerKey];
+}
+
+- (void)testProgressBoxing {
+    MGLOfflinePackProgress progress = {
+        .countOfResourcesCompleted = 3,
+        .countOfResourcesExpected = 2,
+        .countOfBytesCompleted = 7,
+        .countOfTilesCompleted = 1,
+        .countOfTileBytesCompleted = 6,
+        .maximumResourcesExpected = UINT64_MAX,
+    };
+    MGLOfflinePackProgress roundTrippedProgress = [NSValue valueWithMGLOfflinePackProgress:progress].MGLOfflinePackProgressValue;
+
+    XCTAssertEqual(progress.countOfResourcesCompleted, roundTrippedProgress.countOfResourcesCompleted, @"Completed resources should round-trip.");
+    XCTAssertEqual(progress.countOfResourcesExpected, roundTrippedProgress.countOfResourcesExpected, @"Expected resources should round-trip.");
+    XCTAssertEqual(progress.countOfBytesCompleted, roundTrippedProgress.countOfBytesCompleted, @"Completed bytes should round-trip.");
+    XCTAssertEqual(progress.countOfTilesCompleted, roundTrippedProgress.countOfTilesCompleted, @"Completed tiles should round-trip.");
+    XCTAssertEqual(progress.countOfTileBytesCompleted, roundTrippedProgress.countOfTileBytesCompleted, @"Completed tile bytes should round-trip.");
+    XCTAssertEqual(progress.maximumResourcesExpected, roundTrippedProgress.maximumResourcesExpected, @"Maximum expected resources should round-trip.");
+}
+
+@end