-
Notifications
You must be signed in to change notification settings - Fork 7
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Adds specialised outcomeOf Raise DSL to allow for greater interoperab…
…ility with Results and Eithers (#107)
- Loading branch information
Showing
3 changed files
with
234 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
108 changes: 108 additions & 0 deletions
108
lib/src/test/kotlin/app/cash/quiver/OutcomeOfRaiseTest.kt
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,108 @@ | ||
| package app.cash.quiver | ||
|
|
||
| import app.cash.quiver.extensions.ErrorOr | ||
| import app.cash.quiver.matchers.shouldBeAbsent | ||
| import app.cash.quiver.matchers.shouldBeFailure | ||
| import app.cash.quiver.matchers.shouldBePresent | ||
| import app.cash.quiver.raise.outcomeOf | ||
| import arrow.core.Either | ||
| import arrow.core.None | ||
| import arrow.core.Option | ||
| import arrow.core.some | ||
| import io.kotest.core.spec.style.StringSpec | ||
| import io.kotest.matchers.shouldBe | ||
|
|
||
| class OutcomeOfRaiseTest : StringSpec({ | ||
|
|
||
| "outcomeOf success path" { | ||
| outcomeOf { | ||
| val a = Present(1).bind() | ||
| val b: Int = Result.success(1.some()).bind() | ||
| val c: Int = Either.Right(2).bind() | ||
| val d: Int = Either.Right(4.some()).bindOption() | ||
| val nullValue: Int? = 1 | ||
| val e: Int = ensureNotNull(nullValue) | ||
| val f: Int = nullValue.bindNull() | ||
| val g: Int = Result.success(1).bindResult() | ||
| val result = a + b + c + d + e + f + g | ||
| ensure(result > 9) | ||
| result | ||
| }.shouldBePresent().shouldBe(11) | ||
| } | ||
|
|
||
| "outcomeOf Either failure path" { | ||
| outcomeOf { | ||
| val a = Present(1).bind() | ||
| val b: Int = Either.Left(Throwable("doh")).bind<Int>() | ||
| a + b | ||
| }.shouldBeFailure().message shouldBe "doh" | ||
| } | ||
|
|
||
| "outcomeOf Option failure path" { | ||
| outcomeOf { | ||
| val a = Present(1).bind() | ||
| val b: Int = None.bind<Int>() | ||
| a + b | ||
| }.shouldBeAbsent() | ||
| } | ||
| "outcomeOf Nullable failure path" { | ||
| outcomeOf { | ||
| val a = Present(1).bind() | ||
| val b: Int? = null | ||
| a + (b.bindNull()) | ||
| }.shouldBeAbsent() | ||
| } | ||
|
|
||
| "outcomeOf Result<Option<A>> failure path" { | ||
| outcomeOf { | ||
| val a = Present(1).bind() | ||
| val failure:Result<Option<Int>> = Result.failure<Option<Int>>(Throwable("doh")) | ||
| val b: Int = failure.bind() | ||
| a + b | ||
| }.shouldBeFailure().message shouldBe "doh" | ||
| } | ||
|
|
||
| "outcomeOf Result<None> failure path" { | ||
| outcomeOf { | ||
| val a = Present(1).bind() | ||
| val failure:Result<Option<Int>> = Result.success(None) | ||
| val b: Int = failure.bind() | ||
| a + b | ||
| }.shouldBeAbsent() | ||
| } | ||
|
|
||
| "outcomeOf Result<A> failure path" { | ||
| outcomeOf { | ||
| val a = Present(1).bind() | ||
| val failure:Result<Int> = Result.failure(Throwable("doh")) | ||
| val b: Int = failure.bindResult() | ||
| a + b | ||
| }.shouldBeFailure().message shouldBe "doh" | ||
| } | ||
|
|
||
| "outcomeOf ErrorOr<Option<A>> failure path" { | ||
| outcomeOf { | ||
| val a = Present(1).bind() | ||
| val failure: ErrorOr<Option<Int>> = Either.Left(Throwable("doh")) | ||
| val b: Int = failure.bindOption() | ||
| a + b | ||
| }.shouldBeFailure().message shouldBe "doh" | ||
| } | ||
|
|
||
| "outcomeOf ErrorOr<A> failure path" { | ||
| outcomeOf { | ||
| val a = Present(1).bind() | ||
| val failure: ErrorOr<Int> = Either.Left(Throwable("doh")) | ||
| val b: Int = failure.bind() | ||
| a + b | ||
| }.shouldBeFailure().message shouldBe "doh" | ||
| } | ||
|
|
||
| "outcomeOf 'ensure' failure path" { | ||
| outcomeOf { | ||
| val a = Present(3).bind() | ||
| ensure(a > 10) | ||
| }.shouldBeAbsent() | ||
| } | ||
|
|
||
| }) |