Build and test on both macos and ubuntu (#3)

Author: adborbas

.github/workflows/ci.yml

@@ -1,20 +1,28 @@
-name: Build and test
+name: Build and test on macOS and Ubuntu
 
 on:
   pull_request:
     branches: [ "main" ]
 
 jobs:
-  build:
+  build-and-test-macos:
     runs-on: macos-13
     steps:
-    - uses: actions/checkout@v3
-    - name: Build
-      run: swift build
-      
-  test:
-    runs-on: macos-13
+      - uses: actions/checkout@v3
+      - name: Build on macOS
+        run: swift build
+      - name: Test on macOS
+        run: swift test
+
+  build-and-test-ubuntu:
+    runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
-    - name: Run tests
-      run: swift test
+      - uses: actions/checkout@v3
+      - name: Set up Swift on Ubuntu
+        uses: fwal/setup-swift@v1
+        with:
+          swift-version: '5.9'
+      - name: Build on Ubuntu
+        run: swift build
+      - name: Test on Ubuntu
+        run: swift test

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version:5.7.1
+// swift-tools-version:5.9
 import PackageDescription
 
 let package = Package(

Sources/Grodt/BusinessLogic/PriceService.swift

@@ -49,7 +49,7 @@ class CachedPriceService: PriceService {
 
         var quote = quotes.datedQuotes.first(where: { $0.date == date })
         var calendar = Calendar.current
-        calendar.timeZone = TimeZone.gmt
+        calendar.timeZone = TimeZone.universalGMT
         var dateToCheck = date
 
         for _ in 0..<7 {
@@ -64,7 +64,7 @@ class CachedPriceService: PriceService {
 
     private func liveHistoricalPrices(for ticker: String) async throws -> [DatedQuote] {
         let dateFormatter = DateFormatter()
-        dateFormatter.timeZone = TimeZone.gmt
+        dateFormatter.timeZone = TimeZone.universalGMT
         dateFormatter.dateFormat = "yyyy-MM-dd"
 
         let result = await alphavantage.dailyAdjustedTimeSeries(for: ticker, outputSize: .full)

Sources/Grodt/Persistency/YearMonthDayDate.swift

@@ -5,14 +5,14 @@ struct YearMonthDayDate: Codable, Equatable, Hashable, Comparable {
 
     init(_ date: Date) {
         var calendar = Calendar.current
-        calendar.timeZone = TimeZone.gmt
+        calendar.timeZone = TimeZone.universalGMT
         let components = calendar.dateComponents([.year, .month, .day], from: date)
         self.date = calendar.date(from: components)!
     }
 
     static func == (lhs: YearMonthDayDate, rhs: YearMonthDayDate) -> Bool {
         var calendar = Calendar.current
-        calendar.timeZone = TimeZone.gmt
+        calendar.timeZone = TimeZone.universalGMT
         let lhsComponents = calendar.dateComponents([.year, .month, .day], from: lhs.date)
         let rhsComponents = calendar.dateComponents([.year, .month, .day], from: rhs.date)
         return lhsComponents.year == rhsComponents.year &&

Sources/Grodt/Utilities/TimeZone+universalGMT.swift

@@ -0,0 +1,7 @@
+import Foundation
+
+extension TimeZone {
+    public static var universalGMT: TimeZone {
+        return TimeZone(secondsFromGMT: 0)!
+    }
+}