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Clearing or resetting a singleton in test class
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I'm writing a test method to reset the value of a singleton variable, however I have no clue how to do it. please can someone assist me with the test code to test the following:
public class Service extends CompositeService
.....
//SINGLETON
private static Service singleton;
public static Service get()
if (singleton == null)
singleton = new Service ();
return singleton;
private Service ()
....
...
apex unit-test code-coverage
asked 40 mins ago
Minz
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up vote
1
down vote
favorite
I'm writing a test method to reset the value of a singleton variable, however I have no clue how to do it. please can someone assist me with the test code to test the following:
public class Service extends CompositeService
.....
//SINGLETON
private static Service singleton;
public static Service get()
if (singleton == null)
singleton = new Service ();
return singleton;
private Service ()
....
...
apex unit-test code-coverage
asked 40 mins ago
Minz
182
add a comment |Â
up vote
1
down vote
favorite
up vote
1
down vote
favorite
I'm writing a test method to reset the value of a singleton variable, however I have no clue how to do it. please can someone assist me with the test code to test the following:
public class Service extends CompositeService
.....
//SINGLETON
private static Service singleton;
public static Service get()
if (singleton == null)
singleton = new Service ();
return singleton;
private Service ()
....
...
apex unit-test code-coverage
asked 40 mins ago
Minz
182
I'm writing a test method to reset the value of a singleton variable, however I have no clue how to do it. please can someone assist me with the test code to test the following:
public class Service extends CompositeService
.....
//SINGLETON
private static Service singleton;
public static Service get()
if (singleton == null)
singleton = new Service ();
return singleton;
private Service ()
....
...
apex unit-test code-coverage
apex unit-test code-coverage
asked 40 mins ago
Minz
182
asked 40 mins ago
Minz
182
asked 40 mins ago
Minz
182
asked 40 mins ago
Minz
182
asked 40 mins ago
Minz
182
182
add a comment |Â
add a comment |Â
1 Answer
1
active
oldest
votes
up vote
3
down vote
If your test class needs to "interfere" with private variables that are not accessible through your class's public API, you should add the @TestVisible annotation:
@TestVisible
private static Service singleton;
Your unit test can then do
Service.singleton = null;
when needed.
It's broadly preferable, where possible, to test using the public API, as this insulates your test class from the implementation details of your class and makes it run tests like any other consumer of the class's API. However, there are lots of situations, as it sounds like you've discovered, where it does become necessary to reach into the private state of a class during a test.
answered 35 mins ago
David Reed
22.9k41642
add a comment |Â
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
3
down vote
If your test class needs to "interfere" with private variables that are not accessible through your class's public API, you should add the @TestVisible annotation:
@TestVisible
private static Service singleton;
Your unit test can then do
Service.singleton = null;
when needed.
It's broadly preferable, where possible, to test using the public API, as this insulates your test class from the implementation details of your class and makes it run tests like any other consumer of the class's API. However, there are lots of situations, as it sounds like you've discovered, where it does become necessary to reach into the private state of a class during a test.
answered 35 mins ago
David Reed
22.9k41642
add a comment |Â
up vote
3
down vote
If your test class needs to "interfere" with private variables that are not accessible through your class's public API, you should add the @TestVisible annotation:
@TestVisible
private static Service singleton;
Your unit test can then do
Service.singleton = null;
when needed.
It's broadly preferable, where possible, to test using the public API, as this insulates your test class from the implementation details of your class and makes it run tests like any other consumer of the class's API. However, there are lots of situations, as it sounds like you've discovered, where it does become necessary to reach into the private state of a class during a test.
answered 35 mins ago
David Reed
22.9k41642
add a comment |Â
up vote
3
down vote
up vote
3
down vote
If your test class needs to "interfere" with private variables that are not accessible through your class's public API, you should add the @TestVisible annotation:
@TestVisible
private static Service singleton;
Your unit test can then do
Service.singleton = null;
when needed.
It's broadly preferable, where possible, to test using the public API, as this insulates your test class from the implementation details of your class and makes it run tests like any other consumer of the class's API. However, there are lots of situations, as it sounds like you've discovered, where it does become necessary to reach into the private state of a class during a test.
answered 35 mins ago
David Reed
22.9k41642
If your test class needs to "interfere" with private variables that are not accessible through your class's public API, you should add the @TestVisible annotation:
@TestVisible
private static Service singleton;
Your unit test can then do
Service.singleton = null;
when needed.
It's broadly preferable, where possible, to test using the public API, as this insulates your test class from the implementation details of your class and makes it run tests like any other consumer of the class's API. However, there are lots of situations, as it sounds like you've discovered, where it does become necessary to reach into the private state of a class during a test.
answered 35 mins ago
David Reed
22.9k41642
answered 35 mins ago
David Reed
22.9k41642
answered 35 mins ago
David Reed
22.9k41642
answered 35 mins ago
David Reed
22.9k41642
22.9k41642
add a comment |Â
add a comment |Â
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