2023-08-29 08:18:56 +12:00
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defmodule AshPostgres.AtomicsTest do
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use AshPostgres.RepoCase, async: false
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alias AshPostgres.Test.{Api, Post}
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import Ash.Expr
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test "a basic atomic works" do
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post =
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Post
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|> Ash.Changeset.for_create(:create, %{title: "foo", price: 1})
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|> Api.create!()
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assert %{price: 2} =
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post
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|> Ash.Changeset.for_update(:update, %{})
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|> Ash.Changeset.atomic_update(:price, expr(price + 1))
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2023-08-29 08:18:56 +12:00
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|> Api.update!()
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end
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test "an atomic that violates a constraint will return the proper error" do
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post =
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Post
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|> Ash.Changeset.for_create(:create, %{title: "foo", price: 1})
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|> Api.create!()
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assert_raise Ash.Error.Invalid, ~r/does not exist/, fn ->
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post
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|> Ash.Changeset.for_update(:update, %{})
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|> Ash.Changeset.atomic_update(:organization_id, Ash.UUID.generate())
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2023-08-29 08:18:56 +12:00
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|> Api.update!()
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end
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end
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test "an atomic can refer to a calculation" do
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post =
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Post
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|> Ash.Changeset.for_create(:create, %{title: "foo", price: 1})
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|> Api.create!()
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post =
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post
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|> Ash.Changeset.for_update(:update, %{})
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2023-09-01 03:47:15 +12:00
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|> Ash.Changeset.atomic_update(:score, expr(score_after_winning))
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2023-08-29 08:18:56 +12:00
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|> Api.update!()
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assert post.score == 1
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end
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test "an atomic can be attached to an action" do
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post =
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Post
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|> Ash.Changeset.for_create(:create, %{title: "foo", price: 1})
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|> Api.create!()
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assert Post.increment_score!(post, 2).score == 2
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assert Post.increment_score!(post, 2).score == 4
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end
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end
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