The purpose of this repository is to provide a way for people to create placeholder images quickly.
https://www.craigoates.net/Software/project/11
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105 lines
4.3 KiB
105 lines
4.3 KiB
namespace LibraryTests |
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module PropertyTests = |
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open FsCheck.Xunit |
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open System |
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open System.Drawing |
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open SmoulderingBeachBall.Domain.DomainTypes |
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open System.Reflection |
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open SmoulderingBeachBall.Services |
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open System.IO |
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open System.Threading |
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open FsCheck |
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(* '3000' is an arbitary value. It is used to keep the testing times sane. |
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This function is used to randomly generate image sizes but you do not need to use it. |
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The project can handle larger numbers than '3000' but processing takes longer. |
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If you decide to change it, please keep an eye on the saving time. |
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When a image is too big, the project cannot write it to disc fast enough -- |
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sometimes it is because of IO constraints. |
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This means the tests checking for this fail/error will think the image does not exist. |
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To resolved this, add a Thread.Sleep call to the affected tests. |
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Just be aware, the length of sleep-time depends on the size of the image. |
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Also, problems tends to arise around the 15,000 mark. |
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*) |
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let randomInt () = Random().Next(3000) |
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let saveLocation = __SOURCE_DIRECTORY__ + "/SavingTestArea/" |
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let allColours = |
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let properties = |
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typeof<Brushes>.GetProperties(BindingFlags.Public ||| BindingFlags.Static) |
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let colours = |
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seq { for prop in properties -> prop} |
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|> Seq.toArray |
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colours |
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let randomColour () = |
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let item = allColours.[Random().Next(allColours.Length)] |
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item.GetValue(null, null) |
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let fileSaved width height = |
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saveLocation + width + "x" + height + ".png" |
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|> File.Exists |
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// To manually clear out the SavingTestArea folder, use this function in script.fsx. |
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let resetSavingTestArea () = |
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let files = Directory.GetFileSystemEntries(saveLocation) |
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match files.Length with |
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| 0 -> () |
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| _ -> |
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files |
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|> Array.iter (fun f -> File.Delete(f)) |
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let buildBorderOverlay () = |
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Thread.Sleep 100 // Helps generate better colour variation. |
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{ colour = randomColour () :?> Brush |
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overlayType = Border } |
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let buildFullOverlay () = |
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Thread.Sleep 100 // Helps generate better colour variation. |
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{ colour = randomColour () :?> Brush |
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overlayType = Full } |
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(* Please keep non-test functions above the test functions. |
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See ConsoleTests.fs for the extended comment -- regarding function placement. *) |
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[<Property>] |
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let ``Can create an image with no overlay`` () = |
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resetSavingTestArea () |
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let spec = |
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{ // See note accompanying 'randomInt' function for constraints information. |
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width = randomInt () |
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height = randomInt () |
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colour = randomColour () :?> Brush |
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filePath = saveLocation |
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overlay = None } |
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makeImage spec |> Async.RunSynchronously |
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fileSaved (spec.width.ToString()) (spec.height.ToString()) = true |
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[<Property>] |
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let ``Can create an image with border`` () = |
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resetSavingTestArea () |
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let spec = |
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{ // See note accompanying 'randomInt' function for constraints information. |
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width = randomInt () |
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height = randomInt () |
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colour = randomColour () :?> Brush |
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filePath = saveLocation |
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overlay = Some (buildBorderOverlay ()) } |
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makeImage spec |> Async.RunSynchronously |
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fileSaved (spec.width.ToString()) (spec.height.ToString()) = true |
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[<Property>] |
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let ``Can create an image with a full overlay`` () = |
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resetSavingTestArea () |
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let spec = |
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{ // See note accompanying 'randomInt' function for constraints information. |
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width = randomInt () |
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height = randomInt () |
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colour = randomColour () :?> Brush |
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filePath = saveLocation |
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overlay = Some (buildFullOverlay ()) } |
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makeImage spec |> Async.RunSynchronously |
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fileSaved (spec.width.ToString()) (spec.height.ToString()) = true
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