Basic use of Instruments for iOS and Mac application

Instrument tools is used to collect performance data of your iOS or Mac application. It also has a record option to record the whole data collected from your application. I use instruments tool to check with real memory and fps. Memory through Activity Monitor and fps through core animation. 

1) How do i download Instrument tool ?

- Instrument tool comes with Xcode 4 toolset. Xcode can be downloaded from Mac App store

Link: https://itunes.apple.com/in/app/xcode/id497799835?mt=12

2) How do you check with real memory and virtual memory?

- Select Activity Monitor through library and then select the target application and hit record button. In log section you would be listing with real memory and virtual memory of the application. You can also check with CPU utilization too.

3) Where is library, how to select target application and where is record and log section?

- Screenshot would explain you everything

 4) How do you check with FPS?

- Select Core animation in library section and then select the target application and then hit record button. You would be listed with FPS of your application.

LDPI MDPI HDPI XHDPI XXHDPI

Brand	Devices		Pixel Per inch (ppi)
Samsung	Samsung Galaxy Ace	mdpi	165
	Samsung Galaxy Tab 10 inch tablet	mdpi	149
	Samsung Galaxy Tab 2 10 inch tablet	mdpi	149
	Samsung Galaxy S	hdpi	233
	Samsung Galaxy S2	hdpi	217
	Samsung Note	xhdpi	285
	Samsung Note 2	xhdpi	267
	Samsung Galaxy S3	xhdpi	306
	Samsung Nexus 10 inch tablet	xhdpi	299
	Samsung Galaxy S4	xxhdpi	441
	Samsung Galaxy S5	xxhdpi	432
Micromax	Micromax Canvas 2 A110	hdpi	196
	Micromax Canvas Doodle A111	hdpi	185
	Micromax Canvas 2 + A110Q	hdpi	196
	Micromax Canvas HD A116	xhdpi	294
	Micromax Canvas 4 A210	xhdpi	294
	Micromax Canvas Magnus A117	xhdpi	294
	Micromax Canvas Turbo	xxhdpi	441
HTC	HTC Wildfire	mdpi	125
	HTC Desire	hdpi	252
	HTC Desire S	hdpi	252
	HTC Sensation	hdpi	256
	HTC Desire X	hdpi	233
	HTC One S	hdpi	256
	HTC One V	hdpi	252
	HTC Nexus One	hdpi	252
	HTC One X	Xhdpi	312
	HTC One	xxhdpi	469
	HTC One X+	xhdpi	312
	HTC One M8	xxhdpi	441
Google	Google Nexus One	hdpi	252
	Google Nexus S	hdpi	233
	Google Nexus 7 2012	hdpi	216
	Google Nexus 7 2013	xhdpi	323
	Google Nexus 4	xhdpi	318
	Google Nexus 10	xhdpi	299
LG	Lg Optimus one	mdpi	180
	Lg Optimus S	mdpi	180
	Lg Optimus V	mdpi	180
	Lg F70	mdpi	199
	Lg G2 mini	hdpi	234
	Lg L90	hdpi	234
	Lg G Pad	hdpi	273
	Lg Nexus 4	xhdpi	318
	Lg Nexus 5	xxhdpi	455
	Lg G2 mini	hdpi	234
Sony Xperia	Sony Xperia mini	mdpi	192
	Sony Xperia P	hdpi	275
	Sony Xperia S	xhdpi	342
	Sony Xperia J	hdpi	245
	Sony Xperia Arc	hdpi	233
	Sony Xperia Pro	hdpi	265
	Sony Xperia Z	xxhdpi	441
	Sony Xperia Z2	xxhdpi	424
Motorola	Motorola Droid	mdpi	265
	Motorola Defy	hdpi	265
	Motorola Razr XT910	hdpi	256
	Motorola Moto G	xhdpi	326
	Motorola Moto X	xhdpi	312

If you dint find the device which you were searching please check this link to find few more devices which were added.

http://qualitytestingtips.blogspot.in/2016/02/brand-devices-pixel-per-inch-ppi.html

How do you identify ?

You identify the category by just checking the DPI

ldpi - 120 dpi

mdpi - 160 dpi

hdpi - 240 dpi

xhdpi - 320 dpi

xxhdpi - 480 dpi
xxxhdpi - 640 dpi

Will be updating with few more devices soon :) help me out if i am wrong or you can add some more devices in list if you know in which category the devices falls in.

How to perform monkey testing using Shell? (Monkey Testing in Android)

What comes to your mind when you hear the word monkey, Yes it is trouble :D so as tester we always need to think like a monkey while testing to stress the application. Manual Monkey testing mainly concentrates on randomly tapping on the screen without any sequence, using two fingers to tap two different buttons simultaneously, scroll several times in a loop and so on. Looks very monkeyish right :O Do try to think like a monkey while testing :)
But rather than manually executing the monkey test if you could automate it wouldn't it be great? Yes its possible for android applications through terminal. Android has Monkey program which generates a random events like touch, gestures and taps. I use this for stressing android applications and games.

How do you execute monkey test ?

- Open terminal and change directory to platform tools folder 

- Type adb shell (./adb for Mac OS)
- Type monkey -p com.your.package.name -v 5000( You can change values. More the value more the time it runs)
Ex: monkey -p com.zzepod -v 10000

- Observe the screen.

You would see your screen automatically performing touch, gesture and tap operation. If your application doesn't crash after performing this automation then your application is quite stable.

How do you install an android application through terminal in a Mac system

Installing application

- Open terminal and change directory to platform tools folder 

- Type ./adb devices to check if device is connected.

1) Normal installation type
./adb install .apk (file location)

2) If there are more than 1 devices connected then type
./adb -s (device number) install .apk (file location)
Please note: You can see the device number from ./adb devices

3) If you are connected to emulator and you want to install the apk only to device then type
./adb install -d .apk (file location)
Please note if there are multiple devices connected then an error is displayed.

4) Re-install the application
./adb install -r .apk (file location)

5) Install in sd card instead of internal storage
./adb install -s .apk (file location)

Few other commands which are useful

1) To get log from your device
./adb logcat

2) Uninstall application
./adb uninstall (pacakage_name)

3) Uninstall application without removing data and cache
./adb uninstall -k (pacakage_name)

4) Start server to ensure its running
./adb start-server

5) Kill server if its running
./adb kill-server

10 things you will hear from an Android developer.

1. Have they completed this feature in iOS
2. Please do not compare our build with iOS.
3. We cannot provide any animation because android doesn't support those animations.
4. You cannot find a single android application without a crash. Nothing is stable.
5. Its not like iOS, we have to support multiple resolutions.
6. No, Its a feature in Android
7. Its a devices issue, we cannot do anything about it.
8. Its a Google developer phone, memory problem.
9. Sorry, we cannot customize anything. Its better to use built-in android things.
10. I hate apple