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# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
module ConnectionAdapters
class SchemaCacheTest < ActiveRecord::TestCase
def setup
@connection = ActiveRecord::Base.connection
@cache = SchemaCache.new @connection
@database_version = @connection.get_database_version
end
def test_primary_key
assert_equal "id", @cache.primary_keys("posts")
end
def test_yaml_dump_and_load
@cache.columns("posts")
@cache.columns_hash("posts")
@cache.data_sources("posts")
@cache.primary_keys("posts")
@cache.indexes("posts")
new_cache = YAML.load(YAML.dump(@cache))
assert_no_queries do
assert_equal 12, new_cache.columns("posts").size
assert_equal 12, new_cache.columns_hash("posts").size
assert new_cache.data_sources("posts")
assert_equal "id", new_cache.primary_keys("posts")
assert_equal 1, new_cache.indexes("posts").size
assert_equal @database_version.to_s, new_cache.database_version.to_s
end
end
def test_yaml_loads_5_1_dump
@cache = YAML.load(File.read(schema_dump_path))
assert_no_queries do
assert_equal 11, @cache.columns("posts").size
assert_equal 11, @cache.columns_hash("posts").size
assert @cache.data_sources("posts")
assert_equal "id", @cache.primary_keys("posts")
end
end
def test_yaml_loads_5_1_dump_without_indexes_still_queries_for_indexes
@cache = YAML.load(File.read(schema_dump_path))
# Simulate assignment in railtie after loading the cache.
old_cache, @connection.schema_cache = @connection.schema_cache, @cache
assert_queries :any, ignore_none: true do
assert_equal 1, @cache.indexes("posts").size
end
ensure
@connection.schema_cache = old_cache
end
def test_yaml_loads_5_1_dump_without_database_version_still_queries_for_database_version
@cache = YAML.load(File.read(schema_dump_path))
# Simulate assignment in railtie after loading the cache.
old_cache, @connection.schema_cache = @connection.schema_cache, @cache
# We can't verify queries get executed because the database version gets
# cached in both MySQL and PostgreSQL outside of the schema cache.
assert_nil @cache.instance_variable_get(:@database_version)
assert_equal @database_version.to_s, @cache.database_version.to_s
ensure
@connection.schema_cache = old_cache
end
def test_primary_key_for_non_existent_table
assert_nil @cache.primary_keys("omgponies")
end
def test_caches_columns
columns = @cache.columns("posts")
assert_equal columns, @cache.columns("posts")
end
def test_caches_columns_hash
columns_hash = @cache.columns_hash("posts")
assert_equal columns_hash, @cache.columns_hash("posts")
end
def test_caches_indexes
indexes = @cache.indexes("posts")
assert_equal indexes, @cache.indexes("posts")
end
def test_caches_database_version
@cache.database_version # cache database_version
assert_no_queries do
assert_equal @database_version.to_s, @cache.database_version.to_s
if current_adapter?(:Mysql2Adapter)
assert_not_nil @cache.database_version.full_version_string
end
end
end
def test_clearing
@cache.columns("posts")
@cache.columns_hash("posts")
@cache.data_sources("posts")
@cache.primary_keys("posts")
@cache.indexes("posts")
@cache.clear!
assert_equal 0, @cache.size
assert_nil @cache.instance_variable_get(:@database_version)
end
def test_dump_and_load
@cache.columns("posts")
@cache.columns_hash("posts")
@cache.data_sources("posts")
@cache.primary_keys("posts")
@cache.indexes("posts")
@cache = Marshal.load(Marshal.dump(@cache))
assert_no_queries do
assert_equal 12, @cache.columns("posts").size
assert_equal 12, @cache.columns_hash("posts").size
assert @cache.data_sources("posts")
assert_equal "id", @cache.primary_keys("posts")
assert_equal 1, @cache.indexes("posts").size
assert_equal @database_version.to_s, @cache.database_version.to_s
end
end
def test_data_source_exist
assert @cache.data_source_exists?("posts")
assert_not @cache.data_source_exists?("foo")
end
def test_clear_data_source_cache
@cache.clear_data_source_cache!("posts")
end
test "#columns_hash? is populated by #columns_hash" do
assert_not @cache.columns_hash?("posts")
@cache.columns_hash("posts")
assert @cache.columns_hash?("posts")
end
test "#columns_hash? is not populated by #data_source_exists?" do
assert_not @cache.columns_hash?("posts")
@cache.data_source_exists?("posts")
assert_not @cache.columns_hash?("posts")
end
private
def schema_dump_path
"test/assets/schema_dump_5_1.yml"
end
end
end
end
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