Merge pull request #76 from tarantool/sb/directives

add simple tests for @Skip and @include directives

Author: SudoBobo

test/local/directives.result

@@ -0,0 +1,36 @@
+RESULT
+---
+order_collection:
+- order_id: order_id_1
+  description: first order of Ivan
+  user_connection:
+    user_id: user_id_1
+    last_name: Ivanov
+    first_name: Ivan
+...
+
+RESULT
+---
+order_collection:
+- order_id: order_id_1
+  description: first order of Ivan
+...
+
+RESULT
+---
+order_collection:
+- order_id: order_id_1
+  description: first order of Ivan
+...
+
+RESULT
+---
+order_collection:
+- order_id: order_id_1
+  description: first order of Ivan
+  user_connection:
+    user_id: user_id_1
+    last_name: Ivanov
+    first_name: Ivan
+...
+

test/local/directives.test.lua

@@ -0,0 +1,127 @@
+#!/usr/bin/env tarantool
+
+local fio = require('fio')
+
+-- require in-repo version of graphql/ sources despite current working directory
+package.path = fio.abspath(debug.getinfo(1).source:match("@?(.*/)")
+    :gsub('/./', '/'):gsub('/+$', '')) .. '/../../?.lua' .. ';' .. package.path
+
+local graphql = require('graphql')
+local testdata = require('test.testdata.common_testdata')
+local utils = require('graphql.utils')
+local yaml = require('yaml')
+
+-- init box, upload test data and acquire metadata
+-- -----------------------------------------------
+
+-- init box and data schema
+box.cfg{background = false}
+testdata.init_spaces()
+
+-- upload test data
+testdata.fill_test_data()
+
+-- acquire metadata
+local metadata = testdata.get_test_metadata()
+local schemas = metadata.schemas
+local collections = metadata.collections
+local service_fields = metadata.service_fields
+local indexes = metadata.indexes
+
+-- build accessor and graphql schemas
+-- ----------------------------------
+
+local accessor = graphql.accessor_space.new({
+    schemas = schemas,
+    collections = collections,
+    service_fields = service_fields,
+    indexes = indexes,
+})
+
+local gql_wrapper = graphql.new({
+    schemas = schemas,
+    collections = collections,
+    accessor = accessor,
+})
+
+-- run queries
+-- -----------
+
+local query_1 = [[
+        query user_by_order($first_name: String, $description: String, $include: Boolean) {
+            order_collection(description: $description) {
+                order_id
+                description
+                user_connection @include(if: $include, first_name: $first_name) {
+                    user_id
+                    last_name
+                    first_name
+                }
+            }
+        }
+    ]]
+
+local gql_query_1 = gql_wrapper:compile(query_1)
+
+-- should match 1 user
+utils.show_trace(function()
+    local variables_1_1 = {
+        first_name = 'Ivan',
+        description = 'first order of Ivan',
+        include = true
+    }
+    local result = gql_query_1:execute(variables_1_1)
+    print(('RESULT\n%s'):format(yaml.encode(result)))
+end)
+
+utils.show_trace(function()
+    local variables_1_2 = {
+        first_name = 'Ivan',
+        description = 'first order of Ivan',
+        include = false
+    }
+    local result = gql_query_1:execute(variables_1_2)
+    print(('RESULT\n%s'):format(yaml.encode(result)))
+end)
+
+local query_2 = [[
+        query user_by_order($first_name: String, $description: String, $skip: Boolean) {
+            order_collection(description: $description) {
+                order_id
+                description
+                user_connection @skip(if: $skip, first_name: $first_name) {
+                    user_id
+                    last_name
+                    first_name
+                }
+            }
+        }
+    ]]
+
+local gql_query_2 = gql_wrapper:compile(query_2)
+
+utils.show_trace(function()
+    local variables_2_1 = {
+        first_name = 'Ivan',
+        description = 'first order of Ivan',
+        skip = true
+    }
+    local result = gql_query_2:execute(variables_2_1)
+    print(('RESULT\n%s'):format(yaml.encode(result)))
+end)
+
+utils.show_trace(function()
+    local variables_2_2 = {
+        first_name = 'Ivan',
+        description = 'first order of Ivan',
+        skip = false
+    }
+    local result = gql_query_2:execute(variables_2_2)
+    print(('RESULT\n%s'):format(yaml.encode(result)))
+end)
+-- clean up
+-- --------
+
+testdata.drop_spaces()
+
+os.exit()