Can't see the AI assistant "Generate Unit Tests" option

I seem to be having trouble getting that menu to appear in a kotlin/Android project I'm fiddling around with.  I have a submodule in my gradle project and any class that I click in that project doesn't seem to get me that option.  At one point, it did for a short while, but then it went away again (I did change stuff around though, but I can't remember what).

This is the gradle file of that module, if that's any help.  Has anybody else seen this problem ?  Is there a way to debug this ?
(My intuition is that IntelliJ is looking for a specific test configuration)

plugins {
    kotlin("jvm") version "1.9.23"
}

group = "ca.eloas.android"
version = "1.0.0"

tasks.test {
    useJUnitPlatform()
}

dependencies {
    testImplementation(platform("org.junit:junit-bom:5.10.2"))
    testImplementation("org.junit.jupiter:junit-jupiter")
    testImplementation("org.mockito:mockito-core:5.12.0")
    testImplementation("org.mockito:mockito-junit-jupiter:5.12.0")
    testImplementation("org.mockito.kotlin:mockito-kotlin:5.3.1")
    testImplementation("io.strikt:strikt-jvm:0.34.1")
    testRuntimeOnly("org.junit.platform:junit-platform-launcher")
}


kotlin {
    jvmToolchain(17)
}