JUnit 5 Assert Equals Comparison Failure In IntelliJ Is Not Displayed

Hi

I am using AssertJ variant on latest version of JsonUnit in IntelliJ 2021.3.3, Java 11:

dependencies {
    testImplementation 'net.javacrumbs.json-unit:json-unit-assertj:2.33.0'
    testImplementation 'org.junit.jupiter:junit-jupiter:5.8.2'
}

This test with a jsonunit assertion does not display the IntelliJ assert equals comparison failure:

@Test
void jsonUnitShouldProvideIntelliJFailureDiff() {
    assertThatJson("{\"foo\":1, \"bar\":2}").isEqualTo("{\"b\":3, \"a\":1}");
}

Output:

JSON documents are different:
Different keys found in node "", missing: "a","b", extra: "bar","foo", expected: <{"a":1,"b":3}> but was: <{"bar":2,"foo":1}>

org.opentest4j.AssertionFailedError: JSON documents are different:
Different keys found in node "", missing: "a","b", extra: "bar","foo", expected: <{"a":1,"b":3}> but was: <{"bar":2,"foo":1}>

But this junit assertion does:

@Test
void junitShouldProvideIntelliJFailureDiff() {
    assertEquals("{\"foo\":1, \"bar\":2}", "{\"b\":3, \"a\":1}");
}

Output:

expected: <{"foo":1, "bar":2}> but was: <{"b":3, "a":1}>
Expected :{"foo":1, "bar":2}
Actual   :{"b":3, "a":1}
<Click to see difference>

We’d really like to have the comparison failure (available by clicking the <Click to see difference> link in test output) in the IDE as it helps triage the failures with better context for larger json objects.

Is there any way to achieve this?

Ideally it would be great to have both the jsonunit error, which is more descriptive than the junit equivalent, and the link the IntelliJ comparison failure.

Thanks!

Ben

[ljchen1]

Hi, it should be a issue in the IDEA instead of the JsonUnit. The related issue is here: https://youtrack.jetbrains.com/issue/IDEA-277216/<Click-to-see-difference>-is-not-present-in-test-output-when-run The JsonUnit use the assertj under the hood so it has this issue too.

[lukas-krecan]

Makes sense, thanks a lot for investigation