Added test for onSessionBlock for session resumption

CHANGELOG.md

@@ -141,7 +141,7 @@ Bugsnag Notifiers on other platforms.
 
 * Added the internal `BugsnagConfiguration.removeOnSessionBlock` methods to allow removal
   of callbacks run when a session starts.
-  []()
+  [#483](https://github.com/bugsnag/bugsnag-cocoa/pull/483)
 
 ## Bug fixes
 

Tests/BugsnagConfigurationTests.m

@@ -153,7 +153,9 @@ - (void)testAddOnSessionBlockThenRemove {
     __block XCTestExpectation *expectation2 = [self expectationWithDescription:@"Remove On Session Block 2"];
     __block XCTestExpectation *expectation3 = [self expectationWithDescription:@"Remove On Session Block 3"];
     expectation3.inverted = YES;
-
+    __block XCTestExpectation *expectation4 = [self expectationWithDescription:@"Remove On Session Block 4"];
+    expectation4.inverted = YES;
+
     BugsnagConfiguration *config = [[BugsnagConfiguration alloc] initWithApiKey:DUMMY_APIKEY_32CHAR_1 error:nil];
     [config setEndpointsForNotify:@"http://notreal.bugsnag.com" sessions:@"http://notreal.bugsnag.com"];
     XCTAssertEqual([[config onSessionBlocks] count], 0);
@@ -170,6 +172,11 @@ - (void)testAddOnSessionBlockThenRemove {
             // Should NOT be called
             [expectation3 fulfill];
             break;
+        case 3:
+            // Should NOT be called
+            [expectation4 fulfill];
+            break;
+
         }
     };
 
@@ -180,7 +187,7 @@ - (void)testAddOnSessionBlockThenRemove {
     [Bugsnag startBugsnagWithConfiguration:config];
     [self waitForExpectations:@[expectation1] timeout:1.0];
 
-    // Check it's called on session restart
+    // Check it's called on new session start
     [Bugsnag pauseSession];
     called++;
     [Bugsnag startSession];
@@ -192,6 +199,13 @@ - (void)testAddOnSessionBlockThenRemove {
     [config removeOnSessionBlock:sessionBlock];
     [Bugsnag startSession];
     [self waitForExpectations:@[expectation3] timeout:1.0];
+
+    // Check it's NOT called on session resume
+    [Bugsnag pauseSession];
+    called++;
+    [config addOnSessionBlock:sessionBlock];
+    [Bugsnag resumeSession];
+    [self waitForExpectations:@[expectation4] timeout:1.0];
 }
 
 /**