A script that verifies that all tests within a folder structure has at least one assert

Marathonfile

[email protected]:JohnSundell/Files.git

verifyAsserts.swift

import Foundation
import Files

var testsMissingAsserts = [String]()

for file in FileSystem().currentFolder.makeFileSequence(recursive: true) {
    guard file.extension == "swift" else {
        continue
    }

    guard file.name.contains("Tests") else {
        continue
    }

    var testName: String?
    var assertFound = false

    for line in try file.readAsString().components(separatedBy: .newlines) {
        let line = line.trimmingCharacters(in: .whitespaces)

        guard !line.hasPrefix("func test") else {
            if let testName = testName {
                if !assertFound {
                    testsMissingAsserts.append(testName)
                }
            }

            let rawTestName = line.substring(from: line.index(line.startIndex, offsetBy: 5))
            testName = rawTestName.components(separatedBy: "(")[0]
            assertFound = false

            continue
        }

        if !assertFound {
            assertFound = !line.hasPrefix("//") && line.contains("XCTAssert")
        }
    }

    if let testName = testName {
        if !assertFound {
            testsMissingAsserts.append(testName)
        }
    }
}

guard !testsMissingAsserts.isEmpty else {
    print("✅  All your tests have asserts!")
    exit(0)
}

print("⚠️  The following tests do not contain at least one assert:")

for test in testsMissingAsserts {
    print("- \(test)")
}

exit(1)