Add coverage tooling, update test tooling and improve coverage

.github/workflows/test_on_push.yaml

@@ -22,8 +22,8 @@ jobs:
 
       - name: Install dependencies
         run: |
-          tarantoolctl rocks install luatest 0.5.2
-          tarantoolctl rocks install luacheck 0.25.0
+          tarantoolctl rocks install luatest 0.5.5
+          tarantoolctl rocks install luacheck 0.26.0
           tarantoolctl rocks make
 
       - name: Run linter

.gitignore

@@ -6,7 +6,8 @@
 .doctrees
 __pycache__
 /dev
-/tmp
+/tmp/*
+!/tmp/.keep
 doc
 release
 release-doc
@@ -27,4 +28,4 @@ luacov.*.out*
 /package-lock.json
 *.mo
 .history
-.vscode
+*.rock

.luacov

@@ -0,0 +1,6 @@
+statsfile = 'tmp/luacov.stats.out'
+reportfile = 'tmp/luacov.report.out'
+exclude = {
+    '/test/',
+    '/tmp/',
+}

Makefile

@@ -0,0 +1,29 @@
+SHELL := /bin/bash
+
+.PHONY: .rocks
+.rocks: graphql-scm-1.rockspec Makefile
+		tarantoolctl rocks make
+		tarantoolctl rocks install luatest 0.5.5
+		tarantoolctl rocks install luacov 0.13.0
+		tarantoolctl rocks install luacheck 0.26.0
+
+.PHONY: lint
+lint:
+		if [ ! -d ".rocks" ]; then make .rocks; fi
+		.rocks/bin/luacheck .
+
+.PHONY: test
+test: 	lint
+		rm -f tmp/luacov*
+		.rocks/bin/luatest --verbose --coverage --shuffle group
+		.rocks/bin/luacov . && grep -A999 '^Summary' tmp/luacov.report.out
+
+.PHONY: clean
+clean:
+		rm -rf .rocks
+
+.PHONY: build
+build:	
+		if [ ! -d ".rocks" ]; then make .rocks; fi
+		tarantoolctl rocks make
+		tarantoolctl rocks pack graphql scm-1	

graphql/execute.lua

@@ -278,7 +278,7 @@ local function getFieldEntry(objectType, object, fields, context)
       if argument and argument.value then
           positions[pos] = {
               name=argument.name.value,
-              value=arguments[argument.name.value]
+              value=arguments[argument.name.value],
           }
           pos = pos + 1
       end
@@ -346,4 +346,6 @@ local function execute(schema, tree, rootValue, variables, operationName)
 end
 
 
-return {execute=execute}
+return {
+  execute=execute,
+}