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assertj-examples | Examples illustrating AssertJ assertions

 by   joel-costigliola Java Version: Current License: No License

 by   joel-costigliola Java Version: Current License: No License

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kandi X-RAY | assertj-examples Summary

assertj-examples is a Java library. assertj-examples has no bugs, it has no vulnerabilities and it has low support. However assertj-examples build file is not available. You can download it from GitHub.
AssertJ examples is divided in two : assertions-examples (core, guava and joda assertions) and AssertJ swing modules. The main branch contains examples with the latest released version of AssertJ modules (for Java 8). There are several branches that contain examples for the ongoing development versions of AssertJ modules. That means you have to build the according AssertJ modules by your own before new features compile. The following table contains these special branches that are merged into the main each time the module is released.
Support
Support
Quality
Quality
Security
Security
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kandi-support Support

  • assertj-examples has a low active ecosystem.
  • It has 264 star(s) with 158 fork(s). There are 19 watchers for this library.
  • It had no major release in the last 12 months.
  • There are 5 open issues and 17 have been closed. On average issues are closed in 70 days. There are 1 open pull requests and 0 closed requests.
  • It has a neutral sentiment in the developer community.
  • The latest version of assertj-examples is current.
assertj-examples Support
Best in #Java
Average in #Java
assertj-examples Support
Best in #Java
Average in #Java

quality kandi Quality

  • assertj-examples has 0 bugs and 0 code smells.
assertj-examples Quality
Best in #Java
Average in #Java
assertj-examples Quality
Best in #Java
Average in #Java

securitySecurity

  • assertj-examples has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
  • assertj-examples code analysis shows 0 unresolved vulnerabilities.
  • There are 0 security hotspots that need review.
assertj-examples Security
Best in #Java
Average in #Java
assertj-examples Security
Best in #Java
Average in #Java

license License

  • assertj-examples does not have a standard license declared.
  • Check the repository for any license declaration and review the terms closely.
  • Without a license, all rights are reserved, and you cannot use the library in your applications.
assertj-examples License
Best in #Java
Average in #Java
assertj-examples License
Best in #Java
Average in #Java

buildReuse

  • assertj-examples releases are not available. You will need to build from source code and install.
  • assertj-examples has no build file. You will be need to create the build yourself to build the component from source.
  • It has 15188 lines of code, 1218 functions and 267 files.
  • It has low code complexity. Code complexity directly impacts maintainability of the code.
assertj-examples Reuse
Best in #Java
Average in #Java
assertj-examples Reuse
Best in #Java
Average in #Java
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assertj-examples Key Features

Examples illustrating AssertJ assertions

assertj-examples Examples and Code Snippets

See all related Code Snippets

AssertJ check list contains X items but are all null

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// need to cast to String
assertThat(items).hasSize(3).containsOnly((String) null);
assertThat(items).filteredOn(item -> item == null).hasSize(3);
// assertion will pass
Iterable<String> items = Arrays.asList(null, null, null);
assertThat(items).containsOnlyNulls();

// assertion will fail because items2 contains a not null element
Iterable<String> items2 = Arrays.asList(null, null, "notNull");
assertThat(items2).containsOnlyNulls();

// assertion will fail since an empty iterable does not contain any elements and therefore no null ones.
Iterable<String> empty = new ArrayList<>();
assertThat(empty).containsOnlyNulls(); 
// need to cast to String
assertThat(items).hasSize(3).containsOnly((String) null);
assertThat(items).filteredOn(item -> item == null).hasSize(3);
// assertion will pass
Iterable<String> items = Arrays.asList(null, null, null);
assertThat(items).containsOnlyNulls();

// assertion will fail because items2 contains a not null element
Iterable<String> items2 = Arrays.asList(null, null, "notNull");
assertThat(items2).containsOnlyNulls();

// assertion will fail since an empty iterable does not contain any elements and therefore no null ones.
Iterable<String> empty = new ArrayList<>();
assertThat(empty).containsOnlyNulls(); 
// need to cast to String
assertThat(items).hasSize(3).containsOnly((String) null);
assertThat(items).filteredOn(item -> item == null).hasSize(3);
// assertion will pass
Iterable<String> items = Arrays.asList(null, null, null);
assertThat(items).containsOnlyNulls();

// assertion will fail because items2 contains a not null element
Iterable<String> items2 = Arrays.asList(null, null, "notNull");
assertThat(items2).containsOnlyNulls();

// assertion will fail since an empty iterable does not contain any elements and therefore no null ones.
Iterable<String> empty = new ArrayList<>();
assertThat(empty).containsOnlyNulls(); 

See all related Code Snippets

Community Discussions

Trending Discussions on assertj-examples
  • AssertJ check list contains X items but are all null
Trending Discussions on assertj-examples

QUESTION

AssertJ check list contains X items but are all null

Asked 2019-Nov-18 at 02:42

I've looked through the AssertJ examples (https://github.com/joel-costigliola/assertj-examples/blob/master/assertions-examples/src/test/java/org/assertj/examples/IterableAssertionsExamples.java) but I can't find an example of: -

  1. assert list is of size X e.g. 3
  2. assert all items are null

e.g.

List<String> items= Arrays.asList(null, null, null);
assertThat(items).hasSize(3).containsOnlyNulls();

Note - containsOnlyNulls doesn't exist but this is essentially what I'm trying to test for. Can this be achieved in AssertJ?

ANSWER

Answered 2019-Nov-18 at 02:42

You can use either

// need to cast to String
assertThat(items).hasSize(3).containsOnly((String) null);

or

assertThat(items).filteredOn(item -> item == null).hasSize(3);

- Edit -

containsOnlyNulls assertion has been added to AssertJ in 3.9.0+

Example:

// assertion will pass
Iterable<String> items = Arrays.asList(null, null, null);
assertThat(items).containsOnlyNulls();

// assertion will fail because items2 contains a not null element
Iterable<String> items2 = Arrays.asList(null, null, "notNull");
assertThat(items2).containsOnlyNulls();

// assertion will fail since an empty iterable does not contain any elements and therefore no null ones.
Iterable<String> empty = new ArrayList<>();
assertThat(empty).containsOnlyNulls(); 

Source https://stackoverflow.com/questions/45795956

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install assertj-examples

You can download it from GitHub.
You can use assertj-examples like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the assertj-examples component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

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