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Project: Rod

Publisher: Apohllo

Store and load small amount of data from one class

In order to ensure basic functionality, ROD should
allow to store and load data for one simple class.

Background
Given
the library works in development mode
Scenarios
  1. class with one field
  2. class with every type of field
  3. instance with string containing 0
  4. reading fields while objects are created
  5. reading properties of fresh object
  6. referential integrity and simple indexing
  7. model without instances
  8. model without instances with indexed field
  9. ActiveRecord-style initialization
class with one field

Rod should allow to store in the DB instances of a class with one field

Given
the class space is cleared
And
the model is connected with the default database
And
a class Caveman has a name field of type string
When
database is created
And
I create a Caveman
And
his name is 'Fred'
And
I store him in the database
And
I reopen database for reading
Then
there should be 1 Caveman
And
the name of the first Caveman should be 'Fred'
When
database is created
And
I create a Caveman
And
her name is 'Wilma'
And
I store her in the database
And
I create another Caveman
And
his name is 'Barney'
And
I store him in the database
Then
there should be 2 Caveman(s)
And
the name of the first Caveman should be 'Wilma'
And
the name of the second Caveman should be 'Barney'
And
the third Caveman should not exist
class with every type of field

Rod should allow to store in the DB instances of a class
having fields of each type

Given
the class space is cleared
And
the model is connected with the default database
And
a class Caveman has a name field of type string
And
a class Caveman has an age field of type integer
And
a class Caveman has an identifier field of type ulong
And
a class Caveman has a height field of type float
And
a class Caveman has a account_balance field of type float
And
a class Caveman has a symbol field of type object
And
a class Caveman has a empty_string field of type string
And
a class Caveman has a empty_object field of type object
When
database is created
And
I create a Caveman
And
his name is 'Fred'
And
his age is '25'
And
his identifier is '111222333'
And
his height is '1.86'
And
his account_balance is '-0.00000001'
And
his symbol is ':fred'
And
his empty_string is nil
And
I store him in the database
And
I reopen database for reading
Then
there should be 1 Caveman
And
the name of the first Caveman should be 'Fred'
And
the age of the first Caveman should be '25'
And
the identifier of the first Caveman should be '111222333'
And
the height of the first Caveman should be '1.86'
And
the account_balance of the first Caveman should be '-0.00000001'
And
the symbol of the first Caveman should be ':fred'
And
the empty_string of the first Caveman should be ''
And
the empty_object of the first Caveman should be nil
instance with string containing 0

Rod should allow to store in the DB string values
containing characters equal to 0 (not the number but value)

Given
the class space is cleared
And
the model is connected with the default database
And
a class Caveman has a name field of type string
When
database is created
And
I create a Caveman
And
his name is 'Fred\0Fred'
And
I store him in the database
And
I reopen database for reading
Then
there should be 1 Caveman
And
the name of the first Caveman should be 'Fred\0Fred'
When
database is created
And
I create a Caveman
And
his name is 'Fred\0' multiplied 30000 times
And
I store him in the database
And
I reopen database for reading
Then
there should be 1 Caveman
And
the name of the first Caveman should be 'Fred\0' multiplied 30000 times
reading fields while objects are created

Rod should allow to read values of initialized fields of instances, before and after
the instance is stored to the DB.

Given
the class space is cleared
And
the model is connected with the default database
And
a class Caveman has a name field of type string
And
a class Caveman has an age field of type integer
And
a class Caveman has an identifier field of type ulong
And
a class Caveman has a height field of type float
When
database is created
And
I create a Caveman
And
his name is 'Fred'
And
his age is '25'
And
his identifier is '111222333'
And
his height is '1.86'
Then
his name should be 'Fred'
And
his age should be '25'
And
his identifier should be '111222333'
And
his height should be '1.86'
When
database is created
And
I create a Caveman
And
his name is 'Fred'
And
I store him in the database
And
I remember the first Caveman
And
I create another Caveman
And
his name is 'Fred'
And
I store him in the database 4000 times
Then
the name of the remembered instance should be 'Fred'
reading properties of fresh object

Rod should allow to read values of uninitialized fields of instances,
before the instance is stored to the DB.

Given
the class space is cleared
And
the model is connected with the default database
And
a class Item has an name field of type string
And
a class Caveman has a name field of type string
And
a class Caveman has an age field of type integer
And
a class Caveman has an identifier field of type ulong
And
a class Caveman has a height field of type float
And
a class Caveman has a symbol field of type object
And
a class Caveman has one item
And
a class Caveman has many items
When
database is created
And
I create a Caveman
And
I fetch the first Caveman created
Then
his name should be ''
And
his age should be '0'
And
his identifier should be '0'
And
his height should be '0'
And
his symbol should be nil
And
his item should be nil
And
his items should be empty
referential integrity and simple indexing

Rod should allow to access objects via simple indexing
(i.e. Model[index]).
It should also impose referential integrity for objects
which are accessed via their indices.

Given
the class space is cleared
And
the model is connected with the default database
And
a class Caveman has a name field of type string
When
database is created
And
I create a Caveman
And
his name is 'Fred'
And
I store him in the database
And
I reopen database for reading
Then
the first Caveman should be identical with the first Caveman
And
the first Caveman should be equal with the instance
model without instances

A model without instances should be treated fine.

Given
the class space is cleared
And
the model is connected with the default database
And
a class Caveman has a name field of type string with flat index
When
database is created
And
I reopen database for reading
Then
there should be 0 Caveman(s)
model without instances with indexed field

A model without instances but with indexed field should be treated fine.

Given
the class space is cleared
And
the model is connected with the default database
And
a class Caveman has a name field of type string with flat index
And
a class Automobile has a name field of type string with flat index
When
database is created
And
I create a Caveman
And
his name is 'Fred'
And
I store him in the database
And
I reopen database for reading
Then
there should be 1 Caveman
And
there should be 0 Automobile(s)
ActiveRecord-style initialization

A new instance of a model should accept hash of key-value pairs,
used to initialize its fields.

Given
the class space is cleared
And
the model is connected with the default database
And
a class Caveman has a name field of type string
And
a class Caveman has a surname field of type string
When
database is created
And
I create a Caveman with 'Fred' name and 'Flintstone' surname
And
I store him in the database
Then
there should be 1 Caveman
And
his name should be 'Fred'
And
his surname should be 'Flintstone'
When
database is created
And
I create a Caveman with 'Fred' name and 'Flintstone' age
Then
Rod::RodException should be raised

Last published over 7 years ago by apohllo.