KSPTest.kt

@Test
fun `target is a data class`() {
    val kotlinSource = SourceFile.kotlin(
        "file1.kt", 
        """
    package com.tests.summable
    
    import com.tsongkha.kspexample.annotation.IntSummable

      @IntSummable
      data class FooSummable(
        val bar: Int = 234,
        val baz: Int = 123
      )
    """
    )

    val compilation = compilation(kotlinSource)
    val result = compilation.compile()
    
    assertSourceEquals(
        """
            package com.tests.summable
            
            import kotlin.Int
            
            public fun FooSummable.sumInts(): Int {
              val sum = bar + baz
              return sum
            }""",
        result.sourceFor("FooSummableExt.kt")
    )
    assertEquals(KotlinCompilation.ExitCode.OK, result.exitCode)
}