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app/metro-now/metro-now-tests/getStationsFromJSONTest.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,19 @@ | ||
| // | ||
| // jsonUtilsTests.swift | ||
| // metro-now-tests | ||
| // | ||
| // Created by Kryštof Krátký on 15.05.2024. | ||
| // | ||
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| @testable import metro_now | ||
| import XCTest | ||
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| final class jsonUtilsTests: XCTestCase { | ||
| // MARK: - check if JSON data loads successfully | ||
|
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| func testStationsJSON() { | ||
| let result: [Station]? = getParsedJSONFile(.METRO_STATIONS_FILE) | ||
|
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| XCTAssertNotNil(result) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,12 @@ | ||
| // | ||
| // fileUtils.swift | ||
| // metro-now | ||
| // | ||
| // Created by Kryštof Krátký on 16.05.2024. | ||
| // | ||
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| import Foundation | ||
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| enum FileName: String { | ||
| case METRO_STATIONS_FILE = "metro-stations" | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| // | ||
| // jsonUtils.swift | ||
| // metro-now | ||
| // | ||
| // Created by Kryštof Krátký on 15.05.2024. | ||
| // | ||
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| import Foundation | ||
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| struct Station: Codable { | ||
| let name: String | ||
| let avgLat, avgLon: Double | ||
| let platforms: [Platform] | ||
| } | ||
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| struct Platform: Codable { | ||
| let gtfsID, name, direction: String? | ||
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| enum CodingKeys: String, CodingKey { | ||
| case gtfsID | ||
| case name, direction | ||
| } | ||
| } | ||
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| func getParsedJSONFile<T: Decodable>(_ filename: FileName) -> T? { | ||
| let path = Bundle.main.path(forResource: filename.rawValue, ofType: "json") | ||
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| guard let path else { | ||
| print("File not found") | ||
| return nil | ||
| } | ||
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| do { | ||
| let data = try Data( | ||
| contentsOf: URL(fileURLWithPath: path) | ||
| ) | ||
| let stations = try JSONDecoder().decode( | ||
| T.self, | ||
| from: data | ||
| ) | ||
| return stations | ||
| } catch { | ||
| print("Error parsing JSON: \(error)") | ||
| return nil | ||
| } | ||
| } |
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