test: rewrite TAP tests with luatest

Patch adds a tests ported from TAP to luatest format that were
intitially implemented in commits 'Port from tap to luatest'
(549058d) and 'Rewrite tap tests to
luatest' (54d0fca) and later reverted in scope of issue with discard v2.

Follows up #90
Part of #134

Author: ligurio

.github/workflows/test.yml

@@ -22,11 +22,11 @@ jobs:
         id: cache-rocks
         with:
           path: .rocks/
-          key: cache-rocks-${{ matrix.runs-on }}-01
+          key: cache-rocks-${{ matrix.runs-on }}-03
 
       - run: echo $PWD/.rocks/bin >> $GITHUB_PATH
 
-      - run: tarantoolctl rocks make
+      - run: ./deps.sh
 
       - name: Build module
         run: |

CMakeLists.txt

@@ -6,6 +6,8 @@ if(NOT CMAKE_BUILD_TYPE)
 endif()
 set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake" ${CMAKE_MODULE_PATH})
 
+find_package(LuaTest)
+
 # Find Tarantool and Lua dependecies
 set(TARANTOOL_FIND_REQUIRED ON)
 find_package(Tarantool)
@@ -21,7 +23,7 @@ enable_testing()
 set (LUA_PATH "LUA_PATH=${PROJECT_SOURCE_DIR}/?.lua\\;${PROJECT_SOURCE_DIR}/?/init.lua\\;\\;")
 set (LUA_SOURCE_DIR "LUA_SOURCE_DIR=${PROJECT_SOURCE_DIR}")
 
-add_test(http ${CMAKE_SOURCE_DIR}/test/http.test.lua)
+add_test(http ${LUATEST})
 
 set_tests_properties(http PROPERTIES ENVIRONMENT "${LUA_PATH};${LUA_SOURCE_DIR}")
 

cmake/FindLuaTest.cmake

@@ -0,0 +1,12 @@
+find_program(LUATEST luatest
+    HINTS .rocks/
+    PATH_SUFFIXES bin
+    DOC "Lua testing framework"
+)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(LuaTest
+    REQUIRED_VARS LUATEST
+)
+
+mark_as_advanced(LUATEST)

deps.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+# Call this script to install test dependencies.
+
+set -e
+
+# Test dependencies:
+tarantoolctl rocks install luatest 0.5.5
+
+tarantoolctl rocks make

test/helpers.lua

@@ -0,0 +1,94 @@
+local fio = require('fio')
+local http_server = require('http.server')
+local http_client = require('http.client')
+
+local helpers = table.copy(require('luatest').helpers)
+
+helpers.base_port = 12345
+helpers.base_host = '127.0.0.1'
+helpers.base_uri = ('http://%s:%s'):format(helpers.base_host, helpers.base_port)
+
+helpers.cfgserv = function()
+    local path = os.getenv('LUA_SOURCE_DIR') or './'
+    path = fio.pathjoin(path, 'test')
+
+    local httpd = http_server.new(helpers.base_host, helpers.base_port, {
+        app_dir = path,
+        log_requests = false,
+        log_errors = false
+    })
+        :route({path = '/abc/:cde/:def', name = 'test'}, function() end)
+        :route({path = '/abc'}, function() end)
+        :route({path = '/ctxaction'}, 'module.controller#action')
+        :route({path = '/absentaction'}, 'module.controller#absent')
+        :route({path = '/absent'}, 'module.absent#action')
+        :route({path = '/abc/:cde'}, function() end)
+        :route({path = '/abc_:cde_def'}, function() end)
+        :route({path = '/abc-:cde-def'}, function() end)
+        :route({path = '/aba*def'}, function() end)
+        :route({path = '/abb*def/cde', name = 'star'}, function() end)
+        :route({path = '/banners/:token'})
+        :helper('helper_title', function(self, a) return 'Hello, ' .. a end)
+        :route({path = '/helper', file = 'helper.html.el'})
+        :route({path = '/test', file = 'test.html.el' },
+            function(cx) return cx:render({ title = 'title: 123' }) end)
+
+    return httpd
+end
+
+local log_queue = {}
+
+helpers.clear_log_queue = function()
+    log_queue = {}
+end
+
+helpers.custom_logger = {
+    debug = function() end,
+    verbose = function()
+        table.insert(log_queue, {
+            log_lvl = 'verbose',
+        })
+    end,
+    info = function(...)
+        table.insert(log_queue, {
+            log_lvl = 'info',
+            msg = string.format(...)
+        })
+    end,
+    warn = function(...)
+        table.insert(log_queue, {
+            log_lvl = 'warn',
+            msg = string.format(...)
+        })
+    end,
+    error = function(...)
+        table.insert(log_queue, {
+            log_lvl = 'error',
+            msg = string.format(...)
+        })
+    end
+}
+
+helpers.find_msg_in_log_queue = function(msg, strict)
+    for _, log in ipairs(log_queue) do
+        if not strict then
+            if log.msg:match(msg) then
+                return log
+            end
+        else
+            if log.msg == msg then
+                return log
+            end
+        end
+    end
+end
+
+helpers.teardown = function(httpd)
+    httpd:stop()
+    helpers.retrying({}, function()
+        local r = http_client.request('GET', helpers.base_uri)
+        return r == nil
+    end)
+end
+
+return helpers