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Reproduce issue "Try overload resolution ambiguity" #18

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48 changes: 48 additions & 0 deletions src/test/kotlin/io/vavr/kotlin/issues/Issue17Test.kt
Original file line number Diff line number Diff line change
@@ -0,0 +1,48 @@
package io.vavr.kotlin.issues

import io.vavr.control.Try
import org.junit.Assert.fail
import org.junit.Test

/**
* Try overload resolution ambiguity
* https://github.com/vavr-io/vavr-kotlin/issues/17
*/
class Issue17Test {

@Test
fun getOrElseThrow_function() {
try {
Try.of { name() }.getOrElseThrow { _ -> RuntimeException("missing") }
fail("Exception should be thrown")
} catch (e: RuntimeException) {
assert(e.message == "missing")
}
}

@Test
fun getOrElseThrow_supplier() {
try {
Try.of { name() }.getOrElseThrow { -> RuntimeException("missing") }
fail("Exception should be thrown")
} catch (e: RuntimeException) {
assert(e.message == "missing")
}
}

// Overload resolution ambiguity. All these functions match.
// public final fun <X : Throwable!> getOrElseThrow(supplier: (() → TypeVariable(X)!)!): String! defined in io.vavr.control.Try
// public final fun <X : Throwable!> getOrElseThrow(exceptionProvider: ((t: Throwable!) → TypeVariable(X)!)!): String! defined in io.vavr.control.Try
// @Test
// fun getOrElseThrow_ambiguity() {
// try {
// Try.of { name() }.getOrElseThrow { RuntimeException("missing") }
// fail("Exception should be thrown")
// } catch (e: RuntimeException) {
// assert(e.message == "missing")
// }
// }

private fun name(): String = throw RuntimeException("oops")

}