How to read variable from application.properties from method that is testing
I have class:
@Service
public class A {
@Value("${a.b.c}")
private String abc;
public void foo() {
sout(abc);
}
}
I Have test class:
@SpringBootTest
@SpringBootConfiguration
@RunWith(SpringRunner.class)
@TestPropertySource(locations = "classpath:application.yml")
public class TestA {
@Value("${a.b.c}")
private String abc;
@InjectMocks
private A a;
@Test
public void testFoo() {
this.a.foo();
}
}
When I debugging the test method testFoo(),
I see that variable abc is read from the application.yml file.
But,
inside the foo() method,
I see that the variable abc is null.
How can I set variable abc such that it is available in method foo() when I trying to test this method?
java spring unit-testing
edited Nov 27 '18 at 22:38
DwB
29.2k84473
asked Nov 27 '18 at 18:52
Anton KolosokAnton Kolosok
727
add a comment |
I have class:
@Service
public class A {
@Value("${a.b.c}")
private String abc;
public void foo() {
sout(abc);
}
}
I Have test class:
@SpringBootTest
@SpringBootConfiguration
@RunWith(SpringRunner.class)
@TestPropertySource(locations = "classpath:application.yml")
public class TestA {
@Value("${a.b.c}")
private String abc;
@InjectMocks
private A a;
@Test
public void testFoo() {
this.a.foo();
}
}
When I debugging the test method testFoo(),
I see that variable abc is read from the application.yml file.
But,
inside the foo() method,
I see that the variable abc is null.
How can I set variable abc such that it is available in method foo() when I trying to test this method?
java spring unit-testing
edited Nov 27 '18 at 22:38
DwB
29.2k84473
asked Nov 27 '18 at 18:52
Anton KolosokAnton Kolosok
727
Like that:@SpringBootTest({"a.b.c=myValue"})
– piotr szybicki
Nov 27 '18 at 18:59
I tried. Still null
– Anton Kolosok
Nov 27 '18 at 19:09
@AntonKolosok try to replace@InjectMocksannotation in the classTestAto the@Autowired
– Mr. Skip
Nov 27 '18 at 19:13
Possible duplicate of How do I mock an autowired @Value field in Spring with Mockito?
– jordiburgos
Nov 27 '18 at 19:14
A better solution is to use constructor injection, which will usually let you avoid involving Spring at all and simply donew A(myTestAbc).
– chrylis
Nov 27 '18 at 19:32
add a comment |
I have class:
@Service
public class A {
@Value("${a.b.c}")
private String abc;
public void foo() {
sout(abc);
}
}
I Have test class:
@SpringBootTest
@SpringBootConfiguration
@RunWith(SpringRunner.class)
@TestPropertySource(locations = "classpath:application.yml")
public class TestA {
@Value("${a.b.c}")
private String abc;
@InjectMocks
private A a;
@Test
public void testFoo() {
this.a.foo();
}
}
When I debugging the test method testFoo(),
I see that variable abc is read from the application.yml file.
But,
inside the foo() method,
I see that the variable abc is null.
How can I set variable abc such that it is available in method foo() when I trying to test this method?
java spring unit-testing
edited Nov 27 '18 at 22:38
DwB
29.2k84473
asked Nov 27 '18 at 18:52
Anton KolosokAnton Kolosok
727
I have class:
@Service
public class A {
@Value("${a.b.c}")
private String abc;
public void foo() {
sout(abc);
}
}
I Have test class:
@SpringBootTest
@SpringBootConfiguration
@RunWith(SpringRunner.class)
@TestPropertySource(locations = "classpath:application.yml")
public class TestA {
@Value("${a.b.c}")
private String abc;
@InjectMocks
private A a;
@Test
public void testFoo() {
this.a.foo();
}
}
When I debugging the test method testFoo(),
I see that variable abc is read from the application.yml file.
But,
inside the foo() method,
I see that the variable abc is null.
How can I set variable abc such that it is available in method foo() when I trying to test this method?
java spring unit-testing
java spring unit-testing
edited Nov 27 '18 at 22:38
DwB
29.2k84473
asked Nov 27 '18 at 18:52
Anton KolosokAnton Kolosok
727
edited Nov 27 '18 at 22:38
DwB
29.2k84473
asked Nov 27 '18 at 18:52
Anton KolosokAnton Kolosok
727
edited Nov 27 '18 at 22:38
DwB
29.2k84473
edited Nov 27 '18 at 22:38
DwB
29.2k84473
edited Nov 27 '18 at 22:38
DwB
29.2k84473
29.2k84473
asked Nov 27 '18 at 18:52
Anton KolosokAnton Kolosok
727
asked Nov 27 '18 at 18:52
Anton KolosokAnton Kolosok
727
asked Nov 27 '18 at 18:52
Anton KolosokAnton Kolosok
727
727
Like that:@SpringBootTest({"a.b.c=myValue"})
– piotr szybicki
Nov 27 '18 at 18:59
I tried. Still null
– Anton Kolosok
Nov 27 '18 at 19:09
@AntonKolosok try to replace@InjectMocksannotation in the classTestAto the@Autowired
– Mr. Skip
Nov 27 '18 at 19:13
Possible duplicate of How do I mock an autowired @Value field in Spring with Mockito?
– jordiburgos
Nov 27 '18 at 19:14
A better solution is to use constructor injection, which will usually let you avoid involving Spring at all and simply donew A(myTestAbc).
– chrylis
Nov 27 '18 at 19:32
add a comment |
Like that:@SpringBootTest({"a.b.c=myValue"})
– piotr szybicki
Nov 27 '18 at 18:59
I tried. Still null
– Anton Kolosok
Nov 27 '18 at 19:09
@AntonKolosok try to replace@InjectMocksannotation in the classTestAto the@Autowired
– Mr. Skip
Nov 27 '18 at 19:13
Possible duplicate of How do I mock an autowired @Value field in Spring with Mockito?
– jordiburgos
Nov 27 '18 at 19:14
A better solution is to use constructor injection, which will usually let you avoid involving Spring at all and simply donew A(myTestAbc).
– chrylis
Nov 27 '18 at 19:32
Like that:
@SpringBootTest({"a.b.c=myValue"})– piotr szybicki
Nov 27 '18 at 18:59
Like that:
@SpringBootTest({"a.b.c=myValue"})– piotr szybicki
Nov 27 '18 at 18:59
I tried. Still null
– Anton Kolosok
Nov 27 '18 at 19:09
I tried. Still null
– Anton Kolosok
Nov 27 '18 at 19:09
@AntonKolosok try to replace
@InjectMocks annotation in the class TestA to the @Autowired– Mr. Skip
Nov 27 '18 at 19:13
@AntonKolosok try to replace
@InjectMocks annotation in the class TestA to the @Autowired– Mr. Skip
Nov 27 '18 at 19:13
Possible duplicate of How do I mock an autowired @Value field in Spring with Mockito?
– jordiburgos
Nov 27 '18 at 19:14
Possible duplicate of How do I mock an autowired @Value field in Spring with Mockito?
– jordiburgos
Nov 27 '18 at 19:14
A better solution is to use constructor injection, which will usually let you avoid involving Spring at all and simply do
new A(myTestAbc).– chrylis
Nov 27 '18 at 19:32
A better solution is to use constructor injection, which will usually let you avoid involving Spring at all and simply do
new A(myTestAbc).– chrylis
Nov 27 '18 at 19:32
add a comment |
2 Answers
2
active
oldest
votes
Step one is to answer this question: Am I unit testing the code in my class or am I integration testing the combination of Spring and some collection of code that includes my class?
If you are unit testing your code,
then it is not necessary to have Spring do its thing.
Instead,
you only need to instantiate your class,
set the values that Spring would have set for you,
execute the method you are testing,
then verify that your method executed correctly.
Here is your example unit test rewritten as I suggested:
public class TestA
{
private static final String VALUE_ABC = "VALUE_ABC";
private A classToTest;
@Test
public void testFoo()
{
classToTest.foo();
}
@Before
public void preTestSetup()
{
classToTest = new A();
ReflectionTestUtils.setField(
classToTest,
"abc",
VALUE_ABC)
}
}
Some Notes:
ReflectionTestUtilsis part of Spring-test.- You don't need to use
@InjectMocksbecause you have no mocks to inject. - I don't know what
soutis, so I excluded it from the test. You should verify that the sout method was called with the correct value (in this case VALUE_ABC). - If you are just unit testing your code, you don't need Spring, which means that you don't need to use the
@RunWithannotation.
answered Nov 27 '18 at 22:45
DwBDwB
29.2k84473
Im REALY, REALY thank you. I spend a lot of time to beat it by myself.
– Anton Kolosok
Nov 28 '18 at 8:41
add a comment |
You can try to overide the properties like that:
@TestPropertySource(locations = "location.properties",
properties = "a.b.c=123")
Example taken from here
answered Nov 27 '18 at 19:17
riorioriorio
1,89831134
Still have null in foo() method
– Anton Kolosok
Nov 27 '18 at 20:33
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Step one is to answer this question: Am I unit testing the code in my class or am I integration testing the combination of Spring and some collection of code that includes my class?
If you are unit testing your code,
then it is not necessary to have Spring do its thing.
Instead,
you only need to instantiate your class,
set the values that Spring would have set for you,
execute the method you are testing,
then verify that your method executed correctly.
Here is your example unit test rewritten as I suggested:
public class TestA
{
private static final String VALUE_ABC = "VALUE_ABC";
private A classToTest;
@Test
public void testFoo()
{
classToTest.foo();
}
@Before
public void preTestSetup()
{
classToTest = new A();
ReflectionTestUtils.setField(
classToTest,
"abc",
VALUE_ABC)
}
}
Some Notes:
ReflectionTestUtilsis part of Spring-test.- You don't need to use
@InjectMocksbecause you have no mocks to inject. - I don't know what
soutis, so I excluded it from the test. You should verify that the sout method was called with the correct value (in this case VALUE_ABC). - If you are just unit testing your code, you don't need Spring, which means that you don't need to use the
@RunWithannotation.
answered Nov 27 '18 at 22:45
DwBDwB
29.2k84473
Im REALY, REALY thank you. I spend a lot of time to beat it by myself.
– Anton Kolosok
Nov 28 '18 at 8:41
add a comment |
Step one is to answer this question: Am I unit testing the code in my class or am I integration testing the combination of Spring and some collection of code that includes my class?
If you are unit testing your code,
then it is not necessary to have Spring do its thing.
Instead,
you only need to instantiate your class,
set the values that Spring would have set for you,
execute the method you are testing,
then verify that your method executed correctly.
Here is your example unit test rewritten as I suggested:
public class TestA
{
private static final String VALUE_ABC = "VALUE_ABC";
private A classToTest;
@Test
public void testFoo()
{
classToTest.foo();
}
@Before
public void preTestSetup()
{
classToTest = new A();
ReflectionTestUtils.setField(
classToTest,
"abc",
VALUE_ABC)
}
}
Some Notes:
ReflectionTestUtilsis part of Spring-test.- You don't need to use
@InjectMocksbecause you have no mocks to inject. - I don't know what
soutis, so I excluded it from the test. You should verify that the sout method was called with the correct value (in this case VALUE_ABC). - If you are just unit testing your code, you don't need Spring, which means that you don't need to use the
@RunWithannotation.
answered Nov 27 '18 at 22:45
DwBDwB
29.2k84473
Im REALY, REALY thank you. I spend a lot of time to beat it by myself.
– Anton Kolosok
Nov 28 '18 at 8:41
add a comment |
Step one is to answer this question: Am I unit testing the code in my class or am I integration testing the combination of Spring and some collection of code that includes my class?
If you are unit testing your code,
then it is not necessary to have Spring do its thing.
Instead,
you only need to instantiate your class,
set the values that Spring would have set for you,
execute the method you are testing,
then verify that your method executed correctly.
Here is your example unit test rewritten as I suggested:
public class TestA
{
private static final String VALUE_ABC = "VALUE_ABC";
private A classToTest;
@Test
public void testFoo()
{
classToTest.foo();
}
@Before
public void preTestSetup()
{
classToTest = new A();
ReflectionTestUtils.setField(
classToTest,
"abc",
VALUE_ABC)
}
}
Some Notes:
ReflectionTestUtilsis part of Spring-test.- You don't need to use
@InjectMocksbecause you have no mocks to inject. - I don't know what
soutis, so I excluded it from the test. You should verify that the sout method was called with the correct value (in this case VALUE_ABC). - If you are just unit testing your code, you don't need Spring, which means that you don't need to use the
@RunWithannotation.
answered Nov 27 '18 at 22:45
DwBDwB
29.2k84473
Step one is to answer this question: Am I unit testing the code in my class or am I integration testing the combination of Spring and some collection of code that includes my class?
If you are unit testing your code,
then it is not necessary to have Spring do its thing.
Instead,
you only need to instantiate your class,
set the values that Spring would have set for you,
execute the method you are testing,
then verify that your method executed correctly.
Here is your example unit test rewritten as I suggested:
public class TestA
{
private static final String VALUE_ABC = "VALUE_ABC";
private A classToTest;
@Test
public void testFoo()
{
classToTest.foo();
}
@Before
public void preTestSetup()
{
classToTest = new A();
ReflectionTestUtils.setField(
classToTest,
"abc",
VALUE_ABC)
}
}
Some Notes:
ReflectionTestUtilsis part of Spring-test.- You don't need to use
@InjectMocksbecause you have no mocks to inject. - I don't know what
soutis, so I excluded it from the test. You should verify that the sout method was called with the correct value (in this case VALUE_ABC). - If you are just unit testing your code, you don't need Spring, which means that you don't need to use the
@RunWithannotation.
answered Nov 27 '18 at 22:45
DwBDwB
29.2k84473
answered Nov 27 '18 at 22:45
DwBDwB
29.2k84473
answered Nov 27 '18 at 22:45
DwBDwB
29.2k84473
answered Nov 27 '18 at 22:45
DwBDwB
29.2k84473
29.2k84473
Im REALY, REALY thank you. I spend a lot of time to beat it by myself.
– Anton Kolosok
Nov 28 '18 at 8:41
add a comment |
Im REALY, REALY thank you. I spend a lot of time to beat it by myself.
– Anton Kolosok
Nov 28 '18 at 8:41
Im REALY, REALY thank you. I spend a lot of time to beat it by myself.
– Anton Kolosok
Nov 28 '18 at 8:41
Im REALY, REALY thank you. I spend a lot of time to beat it by myself.
– Anton Kolosok
Nov 28 '18 at 8:41
add a comment |
You can try to overide the properties like that:
@TestPropertySource(locations = "location.properties",
properties = "a.b.c=123")
Example taken from here
answered Nov 27 '18 at 19:17
riorioriorio
1,89831134
Still have null in foo() method
– Anton Kolosok
Nov 27 '18 at 20:33
add a comment |
You can try to overide the properties like that:
@TestPropertySource(locations = "location.properties",
properties = "a.b.c=123")
Example taken from here
answered Nov 27 '18 at 19:17
riorioriorio
1,89831134
Still have null in foo() method
– Anton Kolosok
Nov 27 '18 at 20:33
add a comment |
You can try to overide the properties like that:
@TestPropertySource(locations = "location.properties",
properties = "a.b.c=123")
Example taken from here
answered Nov 27 '18 at 19:17
riorioriorio
1,89831134
You can try to overide the properties like that:
@TestPropertySource(locations = "location.properties",
properties = "a.b.c=123")
Example taken from here
answered Nov 27 '18 at 19:17
riorioriorio
1,89831134
answered Nov 27 '18 at 19:17
riorioriorio
1,89831134
answered Nov 27 '18 at 19:17
riorioriorio
1,89831134
answered Nov 27 '18 at 19:17
riorioriorio
1,89831134
1,89831134
Still have null in foo() method
– Anton Kolosok
Nov 27 '18 at 20:33
add a comment |
Still have null in foo() method
– Anton Kolosok
Nov 27 '18 at 20:33
Still have null in foo() method
– Anton Kolosok
Nov 27 '18 at 20:33
Still have null in foo() method
– Anton Kolosok
Nov 27 '18 at 20:33
add a comment |
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Like that:
@SpringBootTest({"a.b.c=myValue"})– piotr szybicki
Nov 27 '18 at 18:59
I tried. Still null
– Anton Kolosok
Nov 27 '18 at 19:09
@AntonKolosok try to replace
@InjectMocksannotation in the classTestAto the@Autowired– Mr. Skip
Nov 27 '18 at 19:13
Possible duplicate of How do I mock an autowired @Value field in Spring with Mockito?
– jordiburgos
Nov 27 '18 at 19:14
A better solution is to use constructor injection, which will usually let you avoid involving Spring at all and simply do
new A(myTestAbc).– chrylis
Nov 27 '18 at 19:32