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218 lines
7.7 KiB
Elixir
218 lines
7.7 KiB
Elixir
defmodule Ash.Test.Resource.Relationships.ManyToManyTest do
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@moduledoc false
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use ExUnit.Case, async: true
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alias __MODULE__
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alias Ash.Resource.Relationships.HasMany
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alias Ash.Resource.Relationships.ManyToMany
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defmacrop defposts(do: body) do
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quote do
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defmodule Post do
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@moduledoc false
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use Ash.Resource, data_layer: Ash.DataLayer.Ets
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attributes do
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uuid_primary_key :id
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end
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unquote(body)
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end
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end
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end
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describe "representation" do
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test "it creates a relationship and a join relationship" do
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defposts do
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relationships do
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many_to_many :related_posts, Post,
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through: SomeResource,
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source_attribute_on_join_resource: :post_id,
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destination_attribute_on_join_resource: :related_post_id
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many_to_many :unrelated_posts, Post,
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through: Tabloid,
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source_attribute_on_join_resource: :post_id,
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destination_attribute_on_join_resource: :unrelated_post_id,
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private?: true
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end
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end
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assert [
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%HasMany{
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cardinality: :many,
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destination: Tabloid,
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destination_attribute: :post_id,
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name: :unrelated_posts_join_assoc,
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source: ManyToManyTest.Post,
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source_attribute: :id,
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type: :has_many,
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private?: true
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},
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%HasMany{
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cardinality: :many,
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destination: SomeResource,
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destination_attribute: :post_id,
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name: :related_posts_join_assoc,
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source: ManyToManyTest.Post,
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source_attribute: :id,
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type: :has_many,
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private?: true
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},
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%ManyToMany{
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cardinality: :many,
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destination: ManyToManyTest.Post,
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destination_attribute: :id,
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destination_attribute_on_join_resource: :related_post_id,
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name: :related_posts,
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source: ManyToManyTest.Post,
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source_attribute: :id,
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source_attribute_on_join_resource: :post_id,
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through: SomeResource,
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type: :many_to_many,
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private?: false
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},
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%ManyToMany{
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cardinality: :many,
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destination: ManyToManyTest.Post,
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destination_attribute: :id,
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destination_attribute_on_join_resource: :unrelated_post_id,
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name: :unrelated_posts,
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source: ManyToManyTest.Post,
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source_attribute: :id,
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source_attribute_on_join_resource: :post_id,
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through: Tabloid,
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type: :many_to_many,
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private?: true
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}
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] = Ash.Resource.Info.relationships(Post)
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assert [%ManyToMany{name: :related_posts}] = Ash.Resource.Info.public_relationships(Post)
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assert %ManyToMany{name: :related_posts} =
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Ash.Resource.Info.public_relationship(Post, :related_posts)
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assert nil == Ash.Resource.Info.relationship(Post, :definitely_legit_relationship)
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assert nil == Ash.Resource.Info.public_relationship(Post, :unrelated_posts)
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end
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end
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describe "validation" do
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test "it fails if you pass a string to `through`" do
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assert_raise(
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Spark.Error.DslError,
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"[Ash.Test.Resource.Relationships.ManyToManyTest.Post]\n relationships -> many_to_many -> foobars:\n invalid value for :through option: expected atom, got: \"some_table\"",
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fn ->
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defposts do
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relationships do
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many_to_many :foobars, Foobar,
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through: "some_table",
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source_attribute_on_join_resource: :source_post_id,
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destination_attribute_on_join_resource: :destination_post_id
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end
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end
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end
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)
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end
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test "you can pass a module to `through`" do
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defposts do
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relationships do
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many_to_many :foobars, Foobar,
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through: FooBars,
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source_attribute_on_join_resource: :source_post_id,
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destination_attribute_on_join_resource: :destination_post_id
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end
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end
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end
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test "it fails if you dont pass an atom for `source_attribute_on_join_resource`" do
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assert_raise(
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Spark.Error.DslError,
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"[Ash.Test.Resource.Relationships.ManyToManyTest.Post]\n relationships -> many_to_many -> foobars:\n invalid value for :source_attribute_on_join_resource option: expected atom, got: \"what\"",
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fn ->
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defposts do
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relationships do
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many_to_many :foobars, Foobar,
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through: FooBars,
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source_attribute_on_join_resource: "what",
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destination_attribute_on_join_resource: :destination_post_id
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end
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end
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end
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)
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end
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test "it fails if you dont pass an atom for `destination_attribute_on_join_resource`" do
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assert_raise(
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Spark.Error.DslError,
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"[Ash.Test.Resource.Relationships.ManyToManyTest.Post]\n relationships -> many_to_many -> foobars:\n invalid value for :destination_attribute_on_join_resource option: expected atom, got: \"what\"",
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fn ->
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defposts do
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relationships do
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many_to_many :foobars, Foobar,
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through: FooBar,
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destination_attribute_on_join_resource: "what",
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source_attribute_on_join_resource: :source_post_id
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end
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end
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end
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)
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end
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test "it fails if you dont pass an atom for `source_attribute`" do
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assert_raise(
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Spark.Error.DslError,
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"[Ash.Test.Resource.Relationships.ManyToManyTest.Post]\n relationships -> many_to_many -> foobars:\n invalid value for :source_attribute option: expected atom, got: \"what\"",
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fn ->
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defposts do
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relationships do
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many_to_many :foobars, Foobar,
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through: FooBar,
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source_attribute: "what",
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source_attribute_on_join_resource: :source_post_id,
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destination_attribute_on_join_resource: :destination_post_id
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end
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end
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end
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)
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end
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test "it fails if you dont pass an atom for `destination_attribute`" do
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assert_raise(
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Spark.Error.DslError,
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"[Ash.Test.Resource.Relationships.ManyToManyTest.Post]\n relationships -> many_to_many -> foobars:\n invalid value for :destination_attribute option: expected atom, got: \"what\"",
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fn ->
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defposts do
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relationships do
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many_to_many :foobars, Foobar,
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through: FooBars,
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destination_attribute: "what",
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source_attribute_on_join_resource: :source_post_id,
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destination_attribute_on_join_resource: :destination_post_id
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end
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end
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end
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)
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end
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test "fails if private? is not an boolean" do
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assert_raise(
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Spark.Error.DslError,
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"[Ash.Test.Resource.Relationships.ManyToManyTest.Post]\n relationships -> many_to_many -> foobars:\n invalid value for :private? option: expected boolean, got: \"an_invalid_field\"",
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fn ->
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defposts do
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relationships do
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many_to_many :foobars, Foobar,
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through: FooBars,
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source_attribute_on_join_resource: :source_post_id,
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destination_attribute_on_join_resource: :destination_post_id,
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private?: "an_invalid_field"
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end
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end
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end
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)
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end
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end
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end
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