Use new config data when Infection has been executed at the first time

src/Command/InfectionCommand.php

@@ -362,7 +362,7 @@ private function runConfigurationCommand(Locator $locator): void
             $locator->locateOneOf(InfectionConfig::POSSIBLE_CONFIG_FILE_NAMES);
         } catch (\Exception $e) {
             $configureCommand = $this->getApplication()->find('configure');
-            $config = $this->getContainer()->get('infection.config');
+            $config = $this->getContainer()->get('infection.config.initial');
 
             $args = [
                 '--test-framework' => $this->input->getOption('test-framework') ?: $config->getTestFramework(),

src/Console/InfectionContainer.php

@@ -232,12 +232,19 @@ public function __construct(array $values = [])
 
     public function buildDynamicDependencies(InputInterface $input): void
     {
-        $this['infection.config'] = function () use ($input): InfectionConfig {
+        $infectionConfigMaker = function () use ($input): InfectionConfig {
             $facade = new ConfigCreatorFacade($this['locator'], $this['filesystem']);
 
             return $facade->createConfig($input->getOption('configuration'));
         };
 
+        /*
+         * Configuration step needs a distinct instance of a configuration as it may be inexistent.
+         * Therefore we can avoid using this stale and invalid configuration later on.
+         */
+        $this['infection.config.initial'] = $infectionConfigMaker;
+        $this['infection.config'] = $infectionConfigMaker;
+
         $this['coverage.path'] = function () use ($input): string {
             $existingCoveragePath = '';
 

tests/Fixtures/e2e/Initial_Configuration/.gitignore

@@ -0,0 +1 @@
+./infection.json*

tests/Fixtures/e2e/Initial_Configuration/Initial_Configuration/SourceClass.php

@@ -0,0 +1,11 @@
+<?php
+
+namespace Initial_Configuration;
+
+class SourceClass
+{
+    public function hello(): string
+    {
+        return 'hello';
+    }
+}

tests/Fixtures/e2e/Initial_Configuration/composer.json

@@ -0,0 +1,15 @@
+{
+    "require-dev": {
+        "phpunit/phpunit": "^6.5"
+    },
+    "autoload": {
+        "psr-4": {
+            "Initial_Configuration\\": "Initial_Configuration/"
+        }
+    },
+    "autoload-dev": {
+        "psr-0": {
+            "Initial_Configuration": "tests/"
+        }
+    }
+}

tests/Fixtures/e2e/Initial_Configuration/do_configure.expect

@@ -0,0 +1,28 @@
+#!/usr/bin/env expect
+set timeout 20
+eval spawn $env(INFECTION)
+
+proc configure { input value } {
+    expect $input {
+        send $value
+    } timeout {
+        send_user "Test failed\n"
+        exit 1
+    }
+}
+
+configure "directories do you want to include" "2\r"
+configure "Any directories to exclude from" "\r"
+configure "timeout in seconds" "\r"
+configure "text log file?" "\r"
+
+expect {
+    "does not exist" {
+        close
+        exit 1
+    }
+    "Please note that some mutants will inevitably be harmless"
+}
+
+send_user "Test succeeded!\n"
+exit 0

tests/Fixtures/e2e/Initial_Configuration/expected.log

@@ -0,0 +1,8 @@
+Escaped mutants:
+================
+
+Timed Out mutants:
+==================
+
+Not Covered mutants:
+====================

tests/Fixtures/e2e/Initial_Configuration/phpunit.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="./vendor/phpunit/phpunit/phpunit.xsd"
+         bootstrap="./vendor/autoload.php"
+         colors="true"
+>
+    <testsuites>
+        <testsuite name="Test Suite">
+            <directory>./tests/</directory>
+        </testsuite>
+    </testsuites>
+
+    <filter>
+        <whitelist>
+            <directory suffix=".php">Initial_Configuration/</directory>
+        </whitelist>
+    </filter>
+</phpunit>

tests/Fixtures/e2e/Initial_Configuration/run_tests.bash

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+
+if test ! -f "$(which expect)"; then
+    test -x $(which tput) && tput setaf 1 # red
+    echo "Please install expect; it is readily available from apt and brew"
+    exit 1;
+fi
+
+cd $(dirname $0)
+rm -v -f infection.json.dist infection.log
+
+set -e
+
+if [ "$PHPDBG" = "1" ]
+then
+    INFECTION="phpdbg -qrr ../../../../bin/infection"
+else
+    INFECTION="php ../../../../bin/infection"
+fi
+export INFECTION
+
+./do_configure.expect
+
+test -f infection.log
+diff -u expected.log infection.log

tests/Fixtures/e2e/Initial_Configuration/tests/Initial_Configuration_Test.php

@@ -0,0 +1,13 @@
+<?php
+
+use Initial_Configuration\SourceClass;
+use PHPUnit\Framework\TestCase;
+
+class Initial_Configuration_Test extends TestCase
+{
+    public function test_hello()
+    {
+        $sourceClass = new SourceClass();
+        $this->assertSame('hello', $sourceClass->hello());
+    }
+}