Merge pull request #10 from juri/nanoseconds-date

Fix nanoseconds with the date property
juri · Aug 2, 2023 · 8d30528 · 8d30528
2 parents 1d524b8 + 1a1a927
commit 8d30528
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diff --git a/Sources/Parse3339/Parse3339.swift b/Sources/Parse3339/Parse3339.swift
@@ -76,7 +76,9 @@ public struct Parts {
         )
         let timet = timegm(&t)
         let offsetTimet = timet - self.zoneSeconds
-        return Date(timeIntervalSince1970: TimeInterval(offsetTimet))
+        var timeInterval = TimeInterval(offsetTimet)
+        timeInterval += TimeInterval(self.nanosecond) / 1_000_000_000
+        return Date(timeIntervalSince1970: timeInterval)
     }
 
     /// Parts as a `DateComponents` value.

diff --git a/Tests/Parse3339Tests/Parse3339Tests.swift b/Tests/Parse3339Tests/Parse3339Tests.swift
@@ -144,6 +144,25 @@ final class Parse3339Tests: XCTestCase {
         XCTAssertEqual(parsed.dateComponents.date!.timeIntervalSince1970, unixTime, accuracy: 0.000001)
     }
 
+    func testFullZZoneToDateWithNanosecondsSuccessful() throws {
+        let s = "2023-07-04T08:21:25.295729572Z"
+        let parsed = try XCTUnwrap(parse(s))
+
+        XCTAssertEqual(parsed.year, 2023)
+        XCTAssertEqual(parsed.month, 7)
+        XCTAssertEqual(parsed.day, 4)
+        XCTAssertEqual(parsed.hour, 8)
+        XCTAssertEqual(parsed.minute, 21)
+        XCTAssertEqual(parsed.second, 25)
+        XCTAssertEqual(parsed.secondFraction, 295_729_572)
+        XCTAssertEqual(parsed.secondFractionDigits, 9)
+        XCTAssertEqual(parsed.zone, 0)
+        XCTAssertEqual(parsed.nanosecond, 295_729_572)
+
+        let unixTime = 1_688_458_885.295729572
+        XCTAssertEqual(parsed.date.timeIntervalSince1970, unixTime, accuracy: 0.000000001)
+    }
+
     func testFullZZoneWithNanosecondsSuccessful() throws {
         let s = "2023-07-04T08:21:25.295729572Z"
         let parsed = try XCTUnwrap(parse(s))