Prevent div-by-0 when producing text execution summary

briancroom · briancroom · commit d19c684a6a8a · 2015-12-22T00:28:05.000-05:00
diff --git a/XCTest/XCTestMain.swift b/XCTest/XCTestMain.swift
@@ -57,7 +57,7 @@ internal struct XCTRun {
     if totalFailures == 1 {
         failureSuffix = ""
     }
-    let averageDuration = totalDuration / Double(XCTAllRuns.count)
+    let averageDuration = totalDuration / Double(max(XCTAllRuns.count, 1))
     print("Total executed \(XCTAllRuns.count) test\(testCountSuffix), with \(totalFailures) failure\(failureSuffix) (\(totalUnexpectedFailures) unexpected) in \(printableStringForTimeInterval(averageDuration)) (\(printableStringForTimeInterval(totalDuration))) seconds")
     exit(totalFailures > 0 ? 1 : 0)
 }

Original file line number	Diff line number	Diff line change
`@@ -57,7 +57,7 @@ internal struct XCTRun {`
`57`	`57`	`if totalFailures == 1 {`
`58`	`58`	`failureSuffix = ""`
`59`	`59`	`}`
`60`		`- let averageDuration = totalDuration / Double(XCTAllRuns.count)`
	`60`	`+ let averageDuration = totalDuration / Double(max(XCTAllRuns.count, 1))`
`61`	`61`	`print("Total executed \(XCTAllRuns.count) test\(testCountSuffix), with \(totalFailures) failure\(failureSuffix) (\(totalUnexpectedFailures) unexpected) in \(printableStringForTimeInterval(averageDuration)) (\(printableStringForTimeInterval(totalDuration))) seconds")`
`62`	`62`	`exit(totalFailures > 0 ? 1 : 0)`
`63`	`63`	`}`