Xcode iOS testsuite NSLog output missing

Question

I'm developing an iOS app using Xcode 6 and am trying to run a test suite in Xcode. I can run the test but I don't see where my NSLog statements output. They are not in the output panel.

How do I find the output?

@interface ISTest : XCTestCase
@end

@implement ISTest
- (void) setUp {
    [super setUp];
}

- (void) tearDown {
    [super tearDown];
}

- (void) testExample {
    NSLog(@"Where does this go???");
}

- (void) testPerformanceExample {
    [self measureBlock^{
    }];
}
@end

All log statements should appear in the debugging area. Can you post an example test case? — JAL, Nov 05 '14 at 23:36
The debugging area is the lower view in Xcode that shows the console and the variables in scope when you hit a breakpoint. Make sure this view is open by clicking the square button with the blue rectangle on the bottom in the top-right corner of Xcode. — JAL, Nov 06 '14 at 14:40
Somehow, I can see the output in All Output now... Don't know what happened before.... Thanks. — user1165560, Nov 06 '14 at 19:42
I have added my answer below. Feel free to mark it as accepted if it helped you. — JAL, Nov 06 '14 at 19:57

JAL · Accepted Answer · 2014-11-06T20:54:09.410

Check console in the debugging area (the lower view) in Xcode. To open this view, click the square button with the blue rectangle on the bottom in the top-right corner of Xcode.

Edit: Why the downvote? Log statements appear in the debugging area for me.

Test:

- (void)testLoginViewControllerViewExists {
    NSLog(@"Testing Login View Controller");
    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Login" bundle:nil];
    CSLoginViewController *loginVC = [storyboard instantiateViewControllerWithIdentifier:
                                      @"loginVC"];
    XCTAssertNotNil([loginVC view], @"loginVC should contain a view");
}

Output:

Test Case '-[AppTests testLoginViewControllerViewExists]' started.
2014-11-06 15:52:00.175 App[14870:2071450] Testing Login View Controller
Test Case '-[AppTests testLoginViewControllerViewExists]' passed (0.001 seconds).

Make sure that async is handled correctly otherwise any NSLog's in a completion block won't output. — Greg, Jun 18 '17 at 09:01
The OP is looking for the NSLog() statements within his application, not the test code. What you'd normally see when running a debug, not test. — Jeff, Jan 06 '20 at 08:54

score 5 · Answer 2 · edited Jan 21 '16 at 18:16

5

Log output in tests does not go to the console.

If you want to see your logs, they are in the build output.

edited Jan 21 '16 at 18:16

JAL

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answered Nov 06 '14 at 20:00

Abizern

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The NSLog() output from within the app code is not there. – Jeff Jan 06 '20 at 08:55

score 3 · Answer 3 · answered Jul 14 '19 at 18:07

3

If you want to see your messages or your strings in your tests being printed on the output console use printf and not NSLog

Example: printf("%s", [yourNSString UTF8String]);

answered Jul 14 '19 at 18:07

C. Kontos

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Xcode iOS testsuite NSLog output missing

3 Answers3