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Hi, I am hirohiu

Hiroshi Ukai

Software Engineer in Automated Verification

I am a programmer in Java, bash, python, and other languages. In my work life, I have been designing, building automated testing frameworks and their testing languages that verify various aspects of large scale distributed heterogeneous software products. Doctor of Engineering

Projects

JCUnit
JCUnit
Author March 2015 - Present

Model-based testing tool powered by Combinatoril Interaction Testing concepts.

professional academic combinatorial interaction testing java unit testing junit
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jq-front
Author Jun 2019 - Present

A JSON (YAML) processor with inheritance and templating. Extremely useful for designing configuration files.

professional JSON bash
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pcond
Author 2020 - Present

A composable, extendable, multi-purposed assertion library. Designed to be zero-overhead as DbC assertions.

professional functional programming Design by Contract java
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symfonion
Author Jun 2013 - Present

A JSON-based music macro language processor written in Java. Old design, but a fun thing.

hobby fun music java json
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osynth
Author Jun 2020 - Present

A library to “synthesize” an object without consturcting. Allows you to reuse and modify behaiviors of an object, not a class. Under development.

professional meta-programming aspect oriented programming java
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Recent Posts

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About Assertions 6

When testing, it is a situation that happens frequently, where you need to verify two values in a single test method. If those two values are irrelevant to each other, you should define two independent methods for them. However, in case we want to verify a certain relationship between them is satisfied or not, you can’t do so. Multi-values Assertion in Hamcrest public class Example { @Test public void example() { String firstName = composeFirstName(); String fullName = composeFullName(); assertThat(firstName, isNotNull()); assertThat(fullName, allOf( isNotNull(), containsString(firstName))); } } This is an example method for Hamcrest.

June 25, 2022 Read
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About Assertions 5

Google Truth and AssertJ delivered a new style of assertions, where you don’t need to remember a lot of method names and class names placed in packages of Hamcrest’s jar file. It made possible to rely on your IDE for listing available methods, from which you can choose a desired one, instead of relying on your memory for it. The only thing that you need to remember is the fact that the method assertThat is what you need.

June 16, 2022 Read
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About Assertions−4

Hamcrest gave us a good failure report and a readable test code style. But, the latter was relying on a Java’s language feature introduced in version 5.0, "static import". If we don’t use it, the code will look like the following. Hamcrest Without "static import" public class MultiConditions { @Test public void allOfMultiConditions() { String firstName = "Gaius"; String lastName = "Caesar"; String helloMessage = composeHelloMessageInEnglish(firstName, lastName); AllOf.assertThat(helloMessage, AllOf.

June 11, 2022 Read