JUnit testing - Developing Android AppsYouTube↗  IA↗(long shot)
Education  15.9K views 34 likes 6 dislikes   23 Feb 2015
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but it will be a while before we can test this in our code we still are going
Tapi masih agak lama sebelum kita bisa uji ini dalam kode kita.
to implement a whole layer on top of it
Kita masih akan terapkan seluruh lapisan di atasnya
along with a bunch of UI changes
bersama dengan banyak perubahan UI.
fortunately we can implement J unit tests here to help and now for some
Untungnya, kita bisa terapkan uji Junit di sini untuk membantu.
magic we'll add a directory to the
Dan sekarang untuk keajaiban.
source directory of our Android studio
Kita akan tambahkan direktori ke direktori sumber
project called Android tests and then
proyek studio Android kita yang disebut pengujian Android,
another one underneath it called Java
lalu satu lagi di bawahnya disebut Java.
this is the way we tell Android studio
Inilah cara kita beri tahu studio Android
there's a test target in Gradle for our
ada target pengujian menanti untuk aplikasi kita.
app now we create a test package that
Sekarang kita buat paket pengujian yang cocok dengan paket utama kita
matches our main package with an extra test directory on the end create a new
dengan direktori pengujian tambahan di akhir.
class called full test suite in the test package add this code this is some
Buat kelas baru disebut "FullTestSuite" dalam paket pengujian. Tambahkan kode ini.
boilerplate code that will allow us to
Ini adalah kode boiler plate yang akan izinkan kita tambahkan pengujian
add tests in additional classes next
dan kelas tambahan.
we'll create a test DB class that extends Android test case and add a test
Berikutnya, kita akan buat kelas TestDB yang meluaskan kasus pengujian Android,
that creates our DV the way this works
dan tambahkan pengujian yang menciptakan DB kita.
is that the test Runner will execute
Cara kerjanya adalah pelaksana pengujian akan eksekusi tiap fungsi di kelas kita
every function in our class that begins with tests in the order that they are
yang dimulai dengan "test" dalam susunan pernyataannya di kelas tersebut.
declared in the class each test should have a failure path that uses an assert
Tiap pengujian harus ada jalur kegagalan yang menggunakan assert.
we start by deleting the database before
Kita mulai dengan hapus database sebelum mengujinya,
testing it so we have a clean test now
jadi, kita punya pengujian yang bersih.
to run the test we go to the App Start
Sekarang, untuk jalankan pengujian, kita menuju ke buka bawah memulai aplikasi
drop-down and select edit configurations
dan pilih Edit Configurations
we select + to add a new configuration
Kita pilih Plus untuk tambahkan konfigurasi baru,
and select Android tests against module
dan pilih Android Test against Module App.
app now we name the test now note that
Sekarang beri nama pengujian itu.
it tends to target the emulator by
Sekarang perhatikan kalau itu cenderung menarget emulator secara default.
default so I want to use an actual
Saya ingin gunakan perangkat asli,
device I'm going to select show chooser
Saya akan pilih Show Chooser Dialogue.
dialogue now we can just run the tests against our device and it passes so
Sekarang kita bisa jalankan pengujian pada perangkat kita. Dan sukses.
let's create a database insert and read test at the beginning of it we will insert a single record into each table
Jadi, mari buat insert database dan baca pengujian. Di bagian awal, kita akan masukkan satu rekaman ke tiap tabel.
we'll begin with some dummy data for our location we'll use the DB helper to get
Kita akan mulai dengan data dummy untuk lokasi kita. Kita akan gunakan DBHelper untuk dapatkan database yang dapat ditulis.
a writable database this is exactly how
Ini persis cara kita nanti akan gunakan database
we will use the database when we code it up in our project will then create a
saat kita kodekan dalam proyek kita.
Content values object which is a handy
Kita lalu akan buat obyek ContentValues, yang merupakan obyek pembantu yang berguna
helper object that Android uses to store values
yang digunakan Android untuk simpan nilai dan kunci.
and keys will store our dummy data into
Kita akan simpan data dummy kita dalam kolom-kolom
the columns from our location entry contract note that in order to make it
dari kontrak LocationEntry kita.
work with this abbreviated syntax I did
Ingat, agar bisa berfungsi dengan sintaks yang disingkat ini,
have to add some extra imports up here
saya harus tambahkan beberapa pengimporan tambahan di sini.
we then insert the data into our
Kita lalu masukkan data dalam database kita,
database and verify that we got a row
dan verifikasi kalau kita dapatkan kembali sebuah baris.
back now I find that it's helpful to put log messages into my test cases now
Sekarang saya rasa membantu kalau kita letakkan pesan log di kasus pengujian saya
we'll use the database read operations
Sekarang kita akan gunakan operasi baca database
to pull our dummy data back out of the
untuk ambil kembali data dummy kita dari database.
database we're making use of a custom
Kita gunakan proyeksi kustom di sini,
projection here which in theory would make it easy to use our database cursor
yang teorinya, memudahkan penggunaan kursor database kita
to query for the values we want we use a
untuk mengkueri nilai yang kita inginkan.
custom projection here although it's not
Kita gunakan proyeksi kustom di sini. Meskipun tidak harus.
required if the custom projection wasn't there we would simply return all columns
Jika proyeksi kustom tidak ada di sini, kita cukup kembalikan semua kolom.
a database cursor is a control structure
Kursor database adalah struktur kontrol
that enables traversal over the records
yang memungkinkan traversal sepanjang rekaman dalam database.
in a database in Android this is represented by a cursor object the
Di Android, ini ditunjukkan oleh obyek kursor.
cursor object allows one to traverse
Obyek kursor memungkinkan telusuri di antara rekaman dalam kueri
between records in a query and get the contents of any individual column from a query now we use cursor dot move to
dan mengambil konten kolom individual dari sebuah kueri. Sekarang, kita gunakan cursor.moveToFirst
first to populate our cursor with our
untuk mengisi kursor kita dengan baris data kita.
row of data we then pull out our data by index finally assert if it doesn't match our dummy data and now we get to run our tests again and they passed
Kita lalu bisa tarik data kita berdasarkan indeks. Terakhir, beri assert jika tidak cocok dengan data dummy kita. Dan sekarang, kita harus jalankan pengujian lagi.
Dan berhasil.
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