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  • How can I troubleshoot flash player/hardware conflict?

    - by sparthikas
    OBJECTIVE: Have a web browser on my Ubuntu install that can play youtube and hulu videos. Also would like to understand problem so that I can fix it again if I change software. Workarounds welcome, technical understanding and solution preferable. SYMPTOMS: Flash does not run - cannot make the right-click menu appear, an empty box is where video should be, changes to black box when hovering over other links. The "The Adobe Flash plugin has crashed" message does not appear with its sad lego face. cannot activate proprietary graphics driver - causes system to reboot to a prompt. SOLUTIONS TRIED: Replaced OS (tried slackware 13.37, fedora 17, linuxmint 13 maya, gentoo, lubuntu, and even winXP. lubuntu confirmed to work, don't remember how much tweaking, if any, this required. Slack, fedora, mint, and gentoo all failed to run flash just like ubuntu) many reinstalls of flash player via different methods, including cleaning up old installs first, also tried gnash and lightspark. replaced graphics card (replaced HIS IceQ Radeon HD 4670 AGP with older GeForce 5700 LE no change in problem) flash does successfully work on winXP installation with Catalyst AGP hotfix driver applied, however I consider windows wholly unacceptable for web browsing due to lack of security. Lubuntu install also works, however I do not want to be tied down to just using Lubuntu on this computer. SYSINFO: Have latest versions of Ubuntu, Firefox, and Flash on fresh Ubuntu install. Using Gigabyte 7s748 motherboard with Athlon XP 2800+ and 3 GB of RAM with Radeon HD 4670 AGP card, also a Dell soundblaster live series sound card (due to malfunction of onboard sound on motherboard) Wired internet connection, Maxtor 6Y120L3 HDD, Sony DVD RW AW-Q170A, Dell M993s monitor. NOTES: I do not know if the graphics driver issue and the flash troubles are linked. Substitution of older graphics card having same flash troubles seems to suggest they aren't. My troubleshooting method is rather reductionist, consisting mainly of "replace things until you find out what was causing the error by process of elimination" only it seems that this must be a conflict which arises when software decides how to configure itself on my hardware. That is, I know the hardware can run Flash, and I know that on other systems the same software can too, but somehow the combination fails. Consequently I feel out of my depth. I will keep trying things off and on, but I have spent probably about 30 man-hours in the last 4 months working on this problem with no joy other than the lubuntu workaround. Any help will be appreciated, I will be checking back and posting updates. Any pertinent questions regarding me or my computer will be answered, outputs from config files can be accessed and posted (IDK which ones or what parts to post).

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  • Setting up Visual Studio 2010 to step into Microsoft .NET Source Code

    - by rajbk
    Using the Microsoft Symbol Server to obtain symbol debugging information is now much easier in VS 2010. Microsoft gives you access to their internet symbol server that contains symbol files for most of the .NET framework including the recently announced availability of MVC 2 Symbols.  SETUP In VS 2010 RTM, go to Tools –> Options –> Debugging –> General. Check “Enable .NET Framework source stepping” We get the following dialog box   This automatically disables “Enable My Code”   Go to Debugging –> Symbols and Check “Microsoft Symbol Servers”. You can selectively exclude modules if you want to.   You will get a warning dialog like so: Hitting OK will start the download process   The setup is complete. You are now ready to start debugging! DEBUGGING Add a break point to your application and run the application in debug mode (F5 shortcut for me). Go to your call stack when you hit the break point. Right click on a frame that is grayed out. Select “Load Symbols from” “Microsoft Symbol Servers”. VS will begin a one time download of that assembly. This assembly will be cached locally so you don’t have to wait for the download the next time you debug the app.   We get a one time license agreement dialog box You might see an error like the one below regarding different encoding (hopefully will be fixed).    Assemblies for which the symbols have been loaded are no longer grayed out. Double clicking on any entry in the call stack should now directly take you to the source code for that assembly. AFAIK, not all symbols are available on the MS symbol server. In cases like that you will see a tab like the one below and be given the option to “Show Disassembly”. Enjoy! Newsreel Announcer: Humiliated, Muntz vows a return to Paradise Falls and promises to capture the beast alive! Charles Muntz: [speaking to a large audience outside in the newsreel] I promise to capture the beast alive, and I will not come back until I do!

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  • Finding the normal of OBB face with an OBB penetrating

    - by Milo
    Below is an illustration: I have an OBB in an OBB (see below for OBB2D code if needed). What I need to determine is, what face it is in, and what direction do I point the normal? The goal is to get the OBB out of the OBB so the normal needs to face outward of the OBB. How could I go about: Finding what face the line is penetrating given the 4 corners of the OBB and the class below: if we define dx=x2-x1 and dy=y2-y1, then the normals are (-dy, dx) and (dy, -dx). Which normal points outward of the OBB? Thanks public class OBB2D { // Corners of the box, where 0 is the lower left. private Vector2D corner[] = new Vector2D[4]; private Vector2D center = new Vector2D(); private Vector2D extents = new Vector2D(); private RectF boundingRect = new RectF(); private float angle; //Two edges of the box extended away from corner[0]. private Vector2D axis[] = new Vector2D[2]; private double origin[] = new double[2]; public OBB2D(Vector2D center, float w, float h, float angle) { set(center,w,h,angle); } public OBB2D(float left, float top, float width, float height) { set(new Vector2D(left + (width / 2), top + (height / 2)),width,height,0.0f); } public void set(Vector2D center,float w, float h,float angle) { Vector2D X = new Vector2D( (float)Math.cos(angle), (float)Math.sin(angle)); Vector2D Y = new Vector2D((float)-Math.sin(angle), (float)Math.cos(angle)); X = X.multiply( w / 2); Y = Y.multiply( h / 2); corner[0] = center.subtract(X).subtract(Y); corner[1] = center.add(X).subtract(Y); corner[2] = center.add(X).add(Y); corner[3] = center.subtract(X).add(Y); computeAxes(); extents.x = w / 2; extents.y = h / 2; computeDimensions(center,angle); } private void computeDimensions(Vector2D center,float angle) { this.center.x = center.x; this.center.y = center.y; this.angle = angle; boundingRect.left = Math.min(Math.min(corner[0].x, corner[3].x), Math.min(corner[1].x, corner[2].x)); boundingRect.top = Math.min(Math.min(corner[0].y, corner[1].y),Math.min(corner[2].y, corner[3].y)); boundingRect.right = Math.max(Math.max(corner[1].x, corner[2].x), Math.max(corner[0].x, corner[3].x)); boundingRect.bottom = Math.max(Math.max(corner[2].y, corner[3].y),Math.max(corner[0].y, corner[1].y)); } public void set(RectF rect) { set(new Vector2D(rect.centerX(),rect.centerY()),rect.width(),rect.height(),0.0f); } // Returns true if other overlaps one dimension of this. private boolean overlaps1Way(OBB2D other) { for (int a = 0; a < axis.length; ++a) { double t = other.corner[0].dot(axis[a]); // Find the extent of box 2 on axis a double tMin = t; double tMax = t; for (int c = 1; c < corner.length; ++c) { t = other.corner[c].dot(axis[a]); if (t < tMin) { tMin = t; } else if (t > tMax) { tMax = t; } } // We have to subtract off the origin // See if [tMin, tMax] intersects [0, 1] if ((tMin > 1 + origin[a]) || (tMax < origin[a])) { // There was no intersection along this dimension; // the boxes cannot possibly overlap. return false; } } // There was no dimension along which there is no intersection. // Therefore the boxes overlap. return true; } //Updates the axes after the corners move. Assumes the //corners actually form a rectangle. private void computeAxes() { axis[0] = corner[1].subtract(corner[0]); axis[1] = corner[3].subtract(corner[0]); // Make the length of each axis 1/edge length so we know any // dot product must be less than 1 to fall within the edge. for (int a = 0; a < axis.length; ++a) { axis[a] = axis[a].divide((axis[a].length() * axis[a].length())); origin[a] = corner[0].dot(axis[a]); } } public void moveTo(Vector2D center) { Vector2D centroid = (corner[0].add(corner[1]).add(corner[2]).add(corner[3])).divide(4.0f); Vector2D translation = center.subtract(centroid); for (int c = 0; c < 4; ++c) { corner[c] = corner[c].add(translation); } computeAxes(); computeDimensions(center,angle); } // Returns true if the intersection of the boxes is non-empty. public boolean overlaps(OBB2D other) { if(right() < other.left()) { return false; } if(bottom() < other.top()) { return false; } if(left() > other.right()) { return false; } if(top() > other.bottom()) { return false; } if(other.getAngle() == 0.0f && getAngle() == 0.0f) { return true; } return overlaps1Way(other) && other.overlaps1Way(this); } public Vector2D getCenter() { return center; } public float getWidth() { return extents.x * 2; } public float getHeight() { return extents.y * 2; } public void setAngle(float angle) { set(center,getWidth(),getHeight(),angle); } public float getAngle() { return angle; } public void setSize(float w,float h) { set(center,w,h,angle); } public float left() { return boundingRect.left; } public float right() { return boundingRect.right; } public float bottom() { return boundingRect.bottom; } public float top() { return boundingRect.top; } public RectF getBoundingRect() { return boundingRect; } public boolean overlaps(float left, float top, float right, float bottom) { if(right() < left) { return false; } if(bottom() < top) { return false; } if(left() > right) { return false; } if(top() > bottom) { return false; } return true; } };

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  • Gnome keyring doesn't unlock after loging in using Pam-face-authentication.

    - by Gaurav Butola
    I am using http://pam-face-authentication.org/ to log into my system using face detection and it is working just great except for one thing,The authentication runs out of the box, but it doesn't unlock my keyring. So after loging into my system, I see my desktop and everything normally but then a password prompt pops-up asking for Gnome-keyring, I think if it can log me into the system just fine then it should also be able to unlock the gnome-kerying. This guy also have the same issue -- https://bugs.launchpad.net/gdm/+bug/479881/comments/4

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  • SEO: many stackoverflow users' pages have got no Google PR and they are not indexed, why?

    - by Marco Demaio
    If you go to my user page on Stack Overflow and you check it with the Gogle bar you can see has got no PR at all (this does happen for almost any user page, even people with much higher reputation, the only exceptions seem to be the users in page 1, and some other users they have PR). My user page's Page Rank is not only zero, but not calculated at all. When PR is 0 or less than 1, but calculated the Google bar shows white, but when the PR is not even calculated like in my user page the Google bar shows in grey. I further more discovered that my user page is NOT EVEN INDEXED on Google, simple test is searching on Google for the exact page url: "http://stackoverflow.com/users/260080/marco-demaio" and you will see no result. The question is how can this be??? This is really weird to me because of the following reason: If you search on Google for "Marco Demaio" on stackoverflow site only (you can do this by searching "site:stackoverflow.com Marco Demaio") the search result shows hundreds of 'asking/answering questions' pages where I was 'tagged'!!! Let's check one of these: the 1st one that appears now (shows one of the question I asked). We can be sure this page is indexed in Google because comes out in a search moreover its PR is calculated, it's probably nearly zero, but still some PR flows there, the PR bar is not grey, but white: The page shown above has got links to my own user page. I checked the source code of the page shown above and the links are not hidden or set with a rel="nofollow", moreover I can't see any meta character excluding the links on the page from being followed. So what's happening? Why Google does not see my user page at all. Did stackoverflow do something to achieve this? If yes what did they do? Any explantion really appreciates (as always). P.S. obviously I checked also the code of my user page, but I could not find meta tags excluding Google search for the page. P.S. 2 in a desperate adventure I also checked StackOverflow robots but it does not seem to exclude user pages. UPDATE 1 following up on some answers, I did some more research. Excluding for a while the PR problem (since PR is not science), and looking only at the user page on StackOverflow NOT BEING INDEXED problem: pages do not seem to be indexed by Google because of the user reputation, this user for instance has got NOW 200 points less reputation than me and his page is indexed (while mine not). It does not seem even to be connected with months you have been on Stackoverflow, this user (almost my same reputation) has been there for 3 months only and his page is indexed (while mine not and I have been a user for 7 months). It's bizzarre! UPDATE February/2011 As of today the page got indexed by Google at least when you search for "site:stackoverflow.com Marco Demaio" it's the 1st page. The amazing thing is that it has still got NO PageRank at all: Google toolbar states loud and clear "No PageRank information available". It's odd!

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  • Silverlight Cream for June 16, 2010 -- #884

    - by Dave Campbell
    In this Issue: Zoltan Arvai, Emiel Jongerius, Charles Petzold, Adam Kinney, Deepesh Mohnani, Timmy Kokke, and Damon Payne. Shoutouts: Andy Beaulieu reported his Coding4Fun: Shuffleboard Game for WP7 has been posted -- Big ol' Tutorial and 6 videos of WP7 goodness Karl Shifflett announced Three New WPF and Silverlight Designer Videos Posted Charles Petzold has a cool Flip-Number Clock in Silverlight posted... cool demo, and the source. From SilverlightCream.com: Data Driven Applications with MVVM Part II: Messaging, Unit Testing, and Live Data Sources Zoltan Arvai has part 2 of his Data-Driven Apps with MVVM up, and this one is also including Messaging, Unit Testing, and Live WCF Data... good tutorial and all the code. Silverlight DataContext Changed Event and Trigger Emiel Jongerius takes a hard swing at the lack of DataContextChanged... his solution involves two attached properties instead of one... check it out and see what you think! Orientation Strategies for Windows Phone 7 Charles Petzold is discussing WP7 Orientation... showing the problems you can get involved in, and how to work through them... and you might be surprised at how he does it :) ... pretty cool as usual, Charles! Debugging the TranslateZoomRotate WPF Behavior in Blend Adam Kinney talks through a bug reported about the WPF TranslateZoomRotate Behavior. Again, it's WPF, but it's in Blend, and ya never know when the solution might apply. I want my app to look like the Zune client Deepesh Mohnani demonstrates using the Cosmopolitan theme to get his app to have the same look as the Zune client. MVVM Project and Item Templates Timmy Kokke is continuing with his cool SilverAmp media player, using it to expand upon the new Blend and Silverlight 4 features. This episode touches very lightly on cranking up a new MVVM project in Blend. Great Features for MVVM Friendly Objects Part 0: Favor Composition Over Inheritance Damon Payne has the first part up of a series he's working on with 'MVVM Friendly' features... he's building out a lot of the infrastructure in this post for the ones that follow... all good stuff. Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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  • Search and Browse Database Objects with Oracle SQL Developer

    - by thatjeffsmith
    I was tempted to throw in another Dora the Explorer Map reference here, but I came to my senses.Having trouble finding something? Maybe you’re just getting older? I know I am. But still, it’d be nice if my favorite database tool could help me out a bit. Hmmm, what’s this ‘Find Database Object‘ thing over here…sounds like a search mechanism of some sort? You can access this panel from the ‘View‘ menu. It’s a good bit down the screen, so I don’t blame you if you haven’t seen it before. It makes finding ‘stuff’ in your database so much easier. Let’s say I want to find my ‘beer’ objects. I simply need to type my search string and the context (in this case I want it to search EVERYTHING), and hit enter. The search results are listed below and clicking on an object automatically opens it! I know it seems very simple, but I get asked this question a LOT. It will even search through your PL/SQL code! Finding too much? Be sure to toggle off the ‘%’ wildcard check box before doing a search. Working on a Project? I bet you use common column names, or codes, throughout your tables. You could take advantage of this knowledge and use the Find Database Object panel as a substitute connection tree or schema browser. Working on your HR project and want to look at your employee objects? Do a column search for your column ID/key. Sometimes thinking outside the box actually works! Don’t be afraid to tackle a problem from a weird angle, or re-purpose your tools. I do it all the time And I drive the developers nuts trying to do things with the tools they were never designed to do. But I digress. Back to your coding!

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  • Visio Architecture Diagram [closed]

    - by Mike
    I am using Visio to create an architecture diagram similar to the following Windows block diagram: Are there components available in Visio to make a diagram like this? I can do it manually by using the open/closed bar shape from Blocks and then adding the text as textboxes but it means I have to worry about sizing/offsetting text for each black box. Is anyone aware of whether there is some built-in shape already for this?

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  • Best Practices To Build a Product Registration System?

    - by Volomike
    What are some practices I should use in a product registration system I'm building? I likely can't stop all malicious hacking, but I'd like to slow them down a great deal. (Note, I know only PHP.) I'm talking about things like encrypting traffic, testing the encryption from hacking like a man-in-the-middle attack, etc. The other concern I have is that this needs to work on most PHP5-based web hosting environments, which may not have mcrypt installed.

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  • Attracting publishers to an in-house affiliate program

    - by Steve
    The cost to enter affiliate networks can be prohibitive for (cash-strapped) small business, particularly if they are simply testing the waters of an affiliate program. If such a company wanted to run an affiliate program in-house using off the shelf software, what methods would they use to attract publishers? Is it simply a case of SEO or SEM, attempting to attract publishers to the page on their website which outlines their affiliate program? Are there directories to submit one's affiliate program to?

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  • Tool to identify (and remove) unnecessary website files?

    - by xanadont
    Inevitably I'll stop using an antiquated css, script, or image file. Especially when a separate designer is tinkering with things and testing out a few versions of images. Before I build one myself, are there any tools out there that will drill through a website and list unlinked files? Specifically, I'm interested in ASP.NET MVC sites, so detecting calls to (and among many other things) @Url.Content(...) is important.

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  • Installing IIS 8 on Windows 8

    - by The Official Microsoft IIS Site
    In case you haven’t heard Windows 8 is now available. As a web developer I think one of the best reasons to upgrade to Windows 8 is that you can start testing IIS 8 right from your PC. This way if you don’t have a budget for a new server you can start to familiarize yourself with some of the new features. IIS 8 has some great new features such as Dynamic IP Restrictions an Application Initialization . However one of the best new features of IIS 8 enables you to throttle the CPU utilization for any...(read more)

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  • Fluid VS Responsive Website Development Questions

    - by Aditya P
    As I understand these form the basis for targeting a wide array of devices based on the browser size, given it would be a time consuming to generate different layouts targeting different/specific devices and their resolutions. Questions: Firstly right to the jargon, is there any actual difference between the two or do they mean the same? Is it safe to classify the current development mainly a html5/css3 based one? What popular frameworks are available to easily implement this? What testing methods used in this regard? What are the most common compatibility issues in terms of different browser types? I understand there are methods like this http://css-tricks.com/resolution-specific-stylesheets/ which does this come under?. Are there any external browser detection methods besides the API calls specific to the browser that are employed in this regard? Points of interest [Prior Research before asking these questions] Why shouldn't "responsive" web design be a consideration? Responsive Web Design Tips, Best Practices and Dynamic Image Scaling Techniques A recent list of tutorials 30 Responsive Web Design and Development Tutorials by Eric Shafer on May 14, 2012 Update Ive been reading that the basic point of designing content for different layouts to facilitate a responsive web design is to present the most relevant information. now obviously between the smallest screen width and the highest we are missing out on design elements. I gather from here http://flashsolver.com/2012/03/24/5-top-commercial-responsive-web-designs/ The top of the line design layouts (widths) are desktop layout (980px) tablet layout (768px) smartphone layout – landscape (480px) smartphone layout – portrait (320px) Also we have a popular responsive website testing site http://resizemybrowser.com/ which lists different screen resolutions. I've also come across this while trying to find out the optimal highest layout size to account for http://stackoverflow.com/questions/10538599/default-web-page-width-1024px-or-980px which brings to light seemingly that 1366x768 is a popular web resolution. Is it safe to assume that just accounting for proper scaling from width 980px onwards to the maximum size would be sufficient to accommodate this? given we aren't presenting any new information for the new size. Does it make sense to have additional information ( which conflicts with purpose of responsive web design) to utilize the top size and beyond?

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  • How to submit a form on pressing enter key

    - by SAMIR BHOGAYTA
    function clickButton(e, buttonid) { var bt = document.getElementById(buttonid); if (typeof bt == 'object'){ if(navigator.appName.indexOf("Netscape")(-1)){ if (e.keyCode == 13){ bt.click(); return false; } } if (navigator.appName.indexOf("Microsoft Internet Explorer")(-1)) { if (event.keyCode == 13){ bt.click(); return false; } } } } //Call this function on last text box of a form with onKeyPress="clickButton(this)"

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  • A Good .NET Quiz ...

    - by lavanyadeepak
    A Good .NET Quiz ... Whilst casually surfing today afternoon I came across a good .NET quiz in one of the indian software company website. It is rather a general technology quiz than just a .NET quiz because it also contains options for the following technologies.   .NET PHP Javascript MySql Testing QTP English Aptitude General Knowledge Science HTML CSS All It also has the following levels for the Quiz:   Easy Medium Hard All   The URL of the quiz is as below: http://www.qualitypointtech.net/quiz/listing_sub_level.php

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  • In GLSL is it possible to offset vertices based on height map colour?

    - by Rob
    I am attempting to generate some terrain based upon a heightmap. I have generated a 32 x 32 grid and a corresponding height map - In my vertex shader I am trying to offset the position of the Y axis based upon the colour of the heightmap, white vertices being higher than black ones. //Vertex Shader Code #version 330 uniform mat4 modelMatrix; uniform mat4 viewMatrix; uniform mat4 projectionMatrix; uniform sampler2D heightmap; layout (location=0) in vec4 vertexPos; layout (location=1) in vec4 vertexColour; layout (location=3) in vec2 vertexTextureCoord; layout (location=4) in float offset; out vec4 fragCol; out vec4 fragPos; out vec2 fragTex; void main() { // Retreive the current pixel's colour vec4 hmColour = texture(heightmap,vertexTextureCoord); // Offset the y position by the value of current texel's colour value ? vec4 offset = vec4(vertexPos.x , vertexPos.y + hmColour.r, vertexPos.z , 1.0); // Final Position gl_Position = projectionMatrix * viewMatrix * modelMatrix * offset; // Data sent to Fragment Shader. fragCol = vertexColour; fragPos = vertexPos; fragTex = vertexTextureCoord; } However the code I have produced only creates a grid with none of the y vertices higher than any others. This is the C++ code that generates the grid and texture co-orientates which I believe to be correct as the texture is mapped to the grid, hence the white blob in the middle. The grid-lines are generated in the fragment shader, sorry for any confusion. I have tried multiplying the r value of hmColour by 1000 unfortunately that had no effect. The only other problem it could be is that the texture coordinate data is incorrect ? for (int z = 0; z < MAP_Z ; z++) { for(int x = 0; x < MAP_X ; x++) { //Generate Vertex Buffer vertexData[iVertex++] = float (x) * MAP_X; vertexData[iVertex++] = 0; vertexData[iVertex++] = -(float) (z) * MAP_Z; //Colour Buffer NOT NEEDED colourData[iColour++] = 255.0f; // R colourData[iColour++] = 1.0f; // G colourData[iColour++] = 0.0f; // B //Texture Buffer textureData[iTexture++] = (float ) x * (1.0f / MAP_X); textureData[iTexture++] = (float ) z * (1.0f / MAP_Z); } } The heightmap texture I am trying to use appears like so (without grid-lines). This is the corresponding fragment shader // Fragment Shader Code #version 330 uniform sampler2D hmTexture; layout (location=0) out vec4 fragColour; in vec2 fragTex; in vec4 pos; void main(void) { vec2 line = fragTex * 32; // Without Gridlines fragColour = texture(hmTexture,fragTex); // With grid lines // + mix(vec4(0.0, 0.0, 1.0, 0.0), vec4(1.0, 1.0, 1.0, 1.0), // smoothstep(0.05,fract(line.y), 0.99) * smoothstep(0.05,fract(line.x),0.99)); }

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  • Writing the tests for FluentPath

    - by Latest Microsoft Blogs
    Writing the tests for FluentPath is a challenge. The library is a wrapper around a legacy API (System.IO) that wasn’t designed to be easily testable. If it were more testable, the sensible testing methodology would be to tell System.IO to act against Read More......(read more)

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  • Writing the tests for FluentPath

    - by Bertrand Le Roy
    Writing the tests for FluentPath is a challenge. The library is a wrapper around a legacy API (System.IO) that wasn’t designed to be easily testable. If it were more testable, the sensible testing methodology would be to tell System.IO to act against a mock file system, which would enable me to verify that my code is doing the expected file system operations without having to manipulate the actual, physical file system: what we are testing here is FluentPath, not System.IO. Unfortunately, that is not an option as nothing in System.IO enables us to plug a mock file system in. As a consequence, we are left with few options. A few people have suggested me to abstract my calls to System.IO away so that I could tell FluentPath – not System.IO – to use a mock instead of the real thing. That in turn is getting a little silly: FluentPath already is a thin abstraction around System.IO, so layering another abstraction between them would double the test surface while bringing little or no value. I would have to test that new abstraction layer, and that would bring us back to square one. Unless I’m missing something, the only option I have here is to bite the bullet and test against the real file system. Of course, the tests that do that can hardly be called unit tests. They are more integration tests as they don’t only test bits of my code. They really test the successful integration of my code with the underlying System.IO. In order to write such tests, the techniques of BDD work particularly well as they enable you to express scenarios in natural language, from which test code is generated. Integration tests are being better expressed as scenarios orchestrating a few basic behaviors, so this is a nice fit. The Orchard team has been successfully using SpecFlow for integration tests for a while and I thought it was pretty cool so that’s what I decided to use. Consider for example the following scenario: Scenario: Change extension Given a clean test directory When I change the extension of bar\notes.txt to foo Then bar\notes.txt should not exist And bar\notes.foo should exist This is human readable and tells you everything you need to know about what you’re testing, but it is also executable code. What happens when SpecFlow compiles this scenario is that it executes a bunch of regular expressions that identify the known Given (set-up phases), When (actions) and Then (result assertions) to identify the code to run, which is then translated into calls into the appropriate methods. Nothing magical. Here is the code generated by SpecFlow: [NUnit.Framework.TestAttribute()] [NUnit.Framework.DescriptionAttribute("Change extension")] public virtual void ChangeExtension() { TechTalk.SpecFlow.ScenarioInfo scenarioInfo = new TechTalk.SpecFlow.ScenarioInfo("Change extension", ((string[])(null))); #line 6 this.ScenarioSetup(scenarioInfo); #line 7 testRunner.Given("a clean test directory"); #line 8 testRunner.When("I change the extension of " + "bar\\notes.txt to foo"); #line 9 testRunner.Then("bar\\notes.txt should not exist"); #line 10 testRunner.And("bar\\notes.foo should exist"); #line hidden testRunner.CollectScenarioErrors();} The #line directives are there to give clues to the debugger, because yes, you can put breakpoints into a scenario: The way you usually write tests with SpecFlow is that you write the scenario first, let it fail, then write the translation of your Given, When and Then into code if they don’t already exist, which results in running but failing tests, and then you write the code to make your tests pass (you implement the scenario). In the case of FluentPath, I built a simple Given method that builds a simple file hierarchy in a temporary directory that all scenarios are going to work with: [Given("a clean test directory")] public void GivenACleanDirectory() { _path = new Path(SystemIO.Path.GetTempPath()) .CreateSubDirectory("FluentPathSpecs") .MakeCurrent(); _path.GetFileSystemEntries() .Delete(true); _path.CreateFile("foo.txt", "This is a text file named foo."); var bar = _path.CreateSubDirectory("bar"); bar.CreateFile("baz.txt", "bar baz") .SetLastWriteTime(DateTime.Now.AddSeconds(-2)); bar.CreateFile("notes.txt", "This is a text file containing notes."); var barbar = bar.CreateSubDirectory("bar"); barbar.CreateFile("deep.txt", "Deep thoughts"); var sub = _path.CreateSubDirectory("sub"); sub.CreateSubDirectory("subsub"); sub.CreateFile("baz.txt", "sub baz") .SetLastWriteTime(DateTime.Now); sub.CreateFile("binary.bin", new byte[] {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0xFF}); } Then, to implement the scenario that you can read above, I had to write the following When: [When("I change the extension of (.*) to (.*)")] public void WhenIChangeTheExtension( string path, string newExtension) { var oldPath = Path.Current.Combine(path.Split('\\')); oldPath.Move(p => p.ChangeExtension(newExtension)); } As you can see, the When attribute is specifying the regular expression that will enable the SpecFlow engine to recognize what When method to call and also how to map its parameters. For our scenario, “bar\notes.txt” will get mapped to the path parameter, and “foo” to the newExtension parameter. And of course, the code that verifies the assumptions of the scenario: [Then("(.*) should exist")] public void ThenEntryShouldExist(string path) { Assert.IsTrue(_path.Combine(path.Split('\\')).Exists); } [Then("(.*) should not exist")] public void ThenEntryShouldNotExist(string path) { Assert.IsFalse(_path.Combine(path.Split('\\')).Exists); } These steps should be written with reusability in mind. They are building blocks for your scenarios, not implementation of a specific scenario. Think small and fine-grained. In the case of the above steps, I could reuse each of those steps in other scenarios. Those tests are easy to write and easier to read, which means that they also constitute a form of documentation. Oh, and SpecFlow is just one way to do this. Rob wrote a long time ago about this sort of thing (but using a different framework) and I highly recommend this post if I somehow managed to pique your interest: http://blog.wekeroad.com/blog/make-bdd-your-bff-2/ And this screencast (Rob always makes excellent screencasts): http://blog.wekeroad.com/mvc-storefront/kona-3/ (click the “Download it here” link)

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  • TechEd 2012 - day 3

    - by Stefan Barrett
    The content has got more useful for me as a developer, and I've now seen 2 things which I think will make a big difference: Fake in vs2012 - allows me to stub or fake out libraries making unit testing easier/possible. C++ AMP & auto - auto might get me to start using c++ again (it makes code like for each much nicer/easier to write), while AMP is something I want to play with (moves the processing onto the GPU) The food got a little better, while there was less sign of the snacks.

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  • Learning PostgreSql: Reading and Writing From .Net

    - by Alexander Kuznetsov
    In this post we shall do some setup tasks, save a few rows of data from a .Net client to PostgreSql, and read it back. Setting up We have set up a virtual machine running Red Hat Linux, installed PostgreSql 9.3 on it, and made sure there is enough disk space. 9.3 is a very recent version, released this September. Because PostgreSqlis not known for releasing before the full testing is complete, we did not have to wait for the next service pack or something like that. Smoke test On the client machine...(read more)

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  • How to Add Control Panel to “My Computer” in Windows 7 or Vista

    - by The Geek
    Back in the Windows XP days, you could easily add Control Panel to My Computer with a simple checkbox in the folder view settings. Windows 7 and Vista don’t make this quite as easy, but there’s still a way to get it back. To make this tweak, we’ll be doing a quick registry hack, but there’s a downloadable version provided as well. Manual Registry Tweak to Add Control Panel Open up regedit.exe through the start menu search or run box, and then browse down to the following key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\NameSpace Now that you’re there, you’ll need to right-click and create a new key… If you want to add the regular Control Panel view, with the categories, you’ll need to use one GUID as the name of the key. If you want the icon view instead, you can use the other key. Here they are: Category View:  {26EE0668-A00A-44D7-9371-BEB064C98683} Icon View: {21EC2020-3AEA-1069-A2DD-08002B30309D} Once you’re done, it should look like this: Now over in the Computer view, just hit the F5 key to refresh the panel, and you should see the new icon pop up in the list: Now when you click on the icon you’ll be taken to Control Panel. If you didn’t know how to change the view before, you can use the drop-down box on the right-hand side to switch between Category and icon view. Downloadable Registry Hack Rather than deal with manual registry editing, you can simply download the file, extract it, and then either double-click on the AddCategoryControlPanel.reg to add the Category view icon, or AddIconControlPanel.reg to add the other icon. There’s an uninstall script provided for each. Download ControlPanelMyComputer Registry Hack from howtogeek.com Similar Articles Productive Geek Tips Disable User Account Control (UAC) the Easy Way on Win 7 or VistaHow To Figure Out Your PC’s Host Name From the Command PromptRestore Missing Desktop Icons in Windows 7 or VistaNew Vista Syntax for Opening Control Panel Items from the Command-lineAdd Registry Editor to Control Panel TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 Have Fun Editing Photo Editing with Citrify Outlook Connector Upgrade Error Gadfly is a cool Twitter/Silverlight app Enable DreamScene in Windows 7 Microsoft’s “How Do I ?” Videos Home Networks – How do they look like & the problems they cause

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  • CodePlex Daily Summary for Monday, May 31, 2010

    CodePlex Daily Summary for Monday, May 31, 2010New ProjectsAndrew's XNA Helpers: A collection of simple, yet useful methods and ways of accessing crucial variables such as the ContentManager or SpriteBatch from anywhere in your ...BASIC-DOS: BASIC-DOS OS Makes It Easier For People To Use DOS As It Comes With An Graphical User Interface That Loads Up During Boot Up. No Need To Type Any C...Chirpy - Visual Studio Add In For Handling Js, Css, and DotLess Files: Mashes, minifies, and validates your javascript, stylesheet, and dotless files.fprparser: Fortify XML Report parser in the form of an Excel Add-inHL7ToXmlConverter: Class library to transform HL7 Version 2.x to HL7Xml Version 2 depends on the used HL7 grammar.imdb movie downloader: basically download info from imdb and it s realy FAST ! need some development about thread pooling and webclient issues.. just try ;) for it run ...IMIfmoOptimisation: Задание по оптимизацииMarketView: MarketViewMediaStreamSources: 这是 CodePlex 上第一个可以呈现视频的 MediaStreamSource 项目。Migrate User Profile Values: A tool to move values between SharePoint 2007 User Profiles. The console application MigrateUserProfileValues.exe will export User Profile values ...Nexus6Studio Development Space: This is a working repository for development efforst of the Nexus6studio team.Project BlueLabel: BlueLabelSergioTools: SergioTools is a collection of tools and sample codes to help C# developers to improve your productivity and skills.SharePoint Property Bag Settings 2010: The Property Bag Settings can store any metadata as Key-Value pairs such as connection strings, server names, file paths, and other miscellaneous s...Silverlight Isolated Storage Cache: IsoCache is a small framework the make it easy to store dll's and xap files in the isolated storage so they can be use to speed up the startup of t...StackPivot: StackPivot is an app which can generate Microsoft Pivot "Collections" on-the-fly based on the data collected from the Stack Exchange APIs. Its d...Suspension Calculator: The Suspension Calculator aims to help people who are building race cars perform suspension related calculations. The calculations vary from motion...TFS Timesheets: A custom work item control for Team Foundation Server that allows timesheet data to be captured against a work item.Umbraco Membership infrastructure: Improvements to the Umbraco membership API implemented as a package. Includes user properties and improved membership API support.VolgaTransTelecomClient: VolgaTransTelecomClient makes it easier for clients of "Volga TransTelecom" company to get info about account. It's developed in C#.Wouter's SharePoint Demo Land: This site contains many of the SharePoint demos that I create while training or hobbying, both for the 2007 and the 2010 release. Please click the...New ReleasesAgUnit - Silverlight unit testing with ReSharper: AgUnit 0.1: Initial release of AgUnit. Copy the extracted files from AgUnit-0.1-ReSharper5.0.zip into the "Bin\Plugins\" folder of your ReSharper installatio...Andrew's XNA Helpers: Andrew's XNA Helpers v1: My first version of my Library of XNA Helpers. Includes: Variables class - A static class that can be accessed anywhere throughout your project -...Clean your Database: Database Cleaner Setup: Database Cleaner SetupClean your Database: Database Cleaner Source: Database Cleaner Source codeCommunity Forums NNTP bridge: Community Forums NNTP Bridge V16: Release of the Community Forums NNTP Bridge to access the social and anwsers MS forums with a single, open source NNTP bridge. This release has add...Community Forums NNTP bridge: Community Forums NNTP Bridge V17: Release of the Community Forums NNTP Bridge to access the social and anwsers MS forums with a single, open source NNTP bridge. This release is prim...Folder Bookmarks: Folder Bookmarks 1.5.8: The latest version of Folder Bookmarks (1.5.8), with new GUI improvements and 'Help' feature - all the instructions needed to use the software (If ...HL7ToXmlConverter: HL7ToXmlConverter Version 0.0.0.9: First distribution on codepleximdb movie downloader: 0.9 Fist Tryout of MyImdb SourceCode: Fist Tryout of MyImdb SourceCodeLightweight Fluent Workflow: Objectflow 1.0.0.2: The features of this release take advantage of .Net 3.5 featrures; Lamda support is back for Constraints and Functions can now be used in workflows...MDownloader: MDownloader-0.15.16.59384: Fixed password detector in context of .rar files. Fixed FileFactory provider implementation. Fixed detection of internet connection failures.MediaStreamSources: MediaStreamSources 1.0 Beta1: 1.0 Beta1Mongodb Management Studio: Mongodb Management Studio v1.1: MongodbManagementStudio v1.1 1.服务器管理功能 添加服务器,删除服务器 2.服务器,数据库,表,列,索引,树形显示和状态信息查看 3.查询分析器功能. 支持select,insert,Delete,update 支持自定义分页函数 $rowid(1,5) 查询...Multiplayer Quiz: Release 1_7_1_0: Latest Release. .NET 4.0 required to run server, and recommended for client. Download: http://www.microsoft.com/downloads/details.aspx?FamilyID=9cf...SCSM PowerShell Cmdlets: SCSM PowerShell Cmdlets Version 0.1.1: First release! This is a minimal build with limited funcitonallity. Should be handled as a preview of what's to come. Included Cmdlets are: New-...SharePoint Property Bag Settings 2010: PropertyBagSettings2010.wsp: The SharePoint Property Bag Settings is a reusable component that you can include in your own SharePoint applications. It can store simple types, s...Sharp Tests Ex: Sharp Tests Ex 1.0.0RTM: Project Description #TestsEx (Sharp Tests Extensions) is a set of extensible extensions. The main target is write short assertions where the Visual...Silverlight Testing Automation Tool: StatLight V1.1: FeaturesApplied some UnitDriven specific changes from justncase80/StatLight Updated to the 0.0.5 release over on rul:UnitDriven.codeplex.com Upda...SQL Server 2005 and 2008 - Backup, Integrity Check and Index Optimization: 30 May 2010: This is the latest version of my solution for Backup, Integrity Check and Index Optimization in SQL Server 2005, SQL Server 2008 and SQL Server 200...Suspension Calculator: SuspensionCalculator_V1.0.0.29: The Suspension Calculator aims to help people who are building race cars perform suspension related calculations. The calculations vary from motion...Svn2Svn: copy, sync, replay or reflect changes across SVN repositories: 1.2 (Beta): Build 1.2.8932.0. Added /incremental (/i) mode, svn2svn detects all previously synced revisions and starts at the latest revision that has not bee...VCC: Latest build, v2.1.30530.0: Automatic drop of latest buildVolgaTransTelecomClient: V.1.0.2.0: v.1.0.2.0 releaseWatchersNET.SkinObjects.ModulActionsMenu: ModulActionsMenu 01.00.01: changes CSS Fixed for the Microsoft Internet ExplorerWouter's SharePoint Demo Land: Navigation Service Basic: This sample shows how to create a simple Service Application for SharePoint 2010. You can read up on the how and why on my blog series about Serv...Most Popular ProjectsRawrWBFS ManagerAJAX Control ToolkitMicrosoft SQL Server Product Samples: DatabaseSilverlight ToolkitWindows Presentation Foundation (WPF)patterns & practices – Enterprise LibraryMicrosoft SQL Server Community & SamplesPHPExcelASP.NETMost Active ProjectsCommunity Forums NNTP bridgeAStar.netpatterns & practices – Enterprise LibraryBlogEngine.NETGMap.NET - Great Maps for Windows Forms & PresentationMirror Testing SystemIonics Isapi Rewrite FilterCustomer Portal Accelerator for Microsoft Dynamics CRMN2 CMSpatterns & practices: Windows Azure Security Guidance

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  • Tools to simulate mobile devices on a desktop to test websites

    - by Kris
    Are there any good tools that can be run on desktop machines (Windows or Linux) that can simulate a mobile device, preferably with some options as to screen size and mobile browser (user agent if not full render engine). I know it is never going to be perfect (especially without an actual touchscreen), but having a tool on our development machines to do what testing we can that way would be very useful.

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