Load files in xcode unit tests

Question

I have an Xcode 5 unit test project and some test xml files related to it. I\'ve tried a bunch of approaches but I can\'t seem to load the xml files.

I\'ve tried the fol

Answer 1

With swift Swift 3 the syntax self.dynamicType has been deprecated, use this instead

let testBundle = Bundle(for: type(of: self))
guard let ressourceURL = testBundle.url(forResource: "TestData", ofType: "xml") else {
    // file does not exist
    return
}
do {
    let ressourceData = try Data(contentsOf: ressourceURL)
} catch let error {
    // some error occurred when reading the file
}

or

guard let ressourceURL = testBundle.url(forResource: "TestData", withExtension: "xml")

Answer 2

1. Get main bundle
2. Use main bundle to get local mock data
3. Load data from JSON

let mainBundle = Bundle(identifier: "com.mainBundle.Identifier")

if let path = mainBundle?.path(forResource: "mockData", ofType: "json") {
        do {
            let testData = try Data(contentsOf: URL(fileURLWithPath: path))
            networkTestSession.data = testData
        } catch {
            debugPrint("local json test data missing")
        }
    }

Answer 3

I know this specific question is asking for xml files, but if you're trying to do the same with json files, try this:

let url = Bundle.main.url(forResource: "data", withExtension: ".json") guard let dataURL = url, let data = try? Data(contentsOf: dataURL) else { fatalError("Couldn't read data.json file") }

Answer 4

When running tests the application bundle is still the main bundle. You need to use unit tests bundle.

Objective C:

NSBundle *bundle = [NSBundle bundleForClass:[self class]];
NSString *path = [bundle pathForResource:@"TestData" ofType:@"xml"];
NSData *xmlData = [NSData dataWithContentsOfFile:path];

Swift 2:

let bundle = NSBundle(forClass: self.dynamicType)
let path = bundle.pathForResource("TestData", ofType: "xml")!
let xmlData = NSData(contentsOfFile: path)

Swift 3 and up:

let bundle = Bundle(for: type(of: self))
let path = bundle.path(forResource: "TestData", ofType: "xml")!
let xmlData = NSData(contentsOfFile: path) 

Answer 5

One thing to note is(It waste me serval minutes to figure it out):

Don't forget to add the test file to "Copy Bundle Resources" section of Build Phases

Without it， you couldn't load the file successfully.

Answer 6

Relative paths are relative to the current working directory. By default, that's / — the root directory. It's looking for that folder at the root level of your startup disk.

The correct way to get a resource that's within your bundle is to ask your bundle for it.

In an application, you'd get the bundle using [NSBundle mainBundle]. I don't know if that works in a test case; try it, and if it doesn't (if it returns nil or an unuseful bundle object), substitute [NSBundle bundleForClass:[self class]].

Either way, once you have the bundle, you can ask it for the path or URL for a resource. You generally should go for URLs unless you have a very specific reason to need a path (like passing it to a command-line tool using NSTask). Send the bundle a URLForResource:withExtension: message to get the resource's URL.

Then, for the purpose of reading a string from it, use [NSString stringWithContentsOfURL:encoding:error:], passing the URL you got from the bundle.