diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..f04f136
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,4 @@
+[*.{kt,kts}]
+indent_size=4
+max_line_length=off
+disabled_rules=import-ordering, no-wildcard-imports
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..bfaed50
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,9 @@
+*.iml
+.gradle
+/local.properties
+/.idea/*
+.DS_Store
+/build
+.externalNativeBuild
+.cxx
+github_credentials.properties
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..cfc7a56
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,29 @@
+clean:
+	./gradlew clean
+
+lint:
+	./gradlew ktlint
+
+run-lint-rules:
+	./gradlew ktlintFormat
+
+unit-test:
+	./gradlew sample:test --parallel
+
+instrumentation-test: clean disable-animations
+	./gradlew connectedAndroidTest
+
+disable-animations:
+	adb shell settings put global window_animation_scale 0
+	adb shell settings put global transition_animation_scale 0
+	adb shell settings put global animator_duration_scale 0
+
+enable-animations:
+	adb shell settings put global window_animation_scale 1
+	adb shell settings put global transition_animation_scale 1
+	adb shell settings put global animator_duration_scale 1
+
+publish-test-lib-prod: clean
+	./gradlew build publish --stacktrace
+
+run-all-sanitycheck-steps: lint unit-test instrumentation-test
diff --git a/README.md b/README.md
index 407a533..fced5a0 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,45 @@
-# Nat-Test-Commons
\ No newline at end of file
+# Nat Test Commons Android
+
+### What for
+Library with helper classes designed to speed up the test-creating process.
+
+### Setup
+Copy and paste the file **github_credentials.properties.sample** and rename it to **github_credentials.properties**. Updating the fields **github.username** and **github.password**. For getting your GitHub password see the [Tutorial](https://help.github.com/en/github/authenticating-to-github/creating-a-personal-access-token-for-the-command-line). Its important to check **read:packages** and when generating you password.
+
+**Important:** The file **github_credentials.properties** can not be commited.
+
+### Sample
+In construction
+
+## How to contribute
+
+You can contribute submitting [pull requests](https://github.com/natura-cosmeticos/Nat-Test-Commons/pulls).
+
+### How to create a new version
+In the file **publish.gradle** update field in the method **getVersionName** with the new version number. Example, for the version 1.0.1:
+
+    def getVersionName = { ->
+        return "1.0.1"
+    }
+
+## How to use
+Copy and paste the file **github_credentials.properties.sample** and rename it to **github_credentials.properties**. Updating the fields **github.username** and **github.password**. For getting your GitHub password see the [Tutorial](https://help.github.com/en/github/authenticating-to-github/creating-a-personal-access-token-for-the-command-line). Its important to check **read:packages** when generating you password.
+In the file build.gradle, insert the informations:
+
+    repositories {
+        maven {
+            name = "nat-test-commons"
+            url = uri("https://maven.pkg.github.com/natura-cosmeticos/Nat-Test-Commons")
+            credentials {
+                username = githubProperties['github.username'] ?: System.getenv("GITHUB_USERNAME")
+                password = githubProperties['github.password'] ?: System.getenv("GITHUB_API_KEY")
+            }
+        }    
+    }
+
+And:
+
+    dependencies {
+        androidTestImplementation "com.natura.android:test-commons:<version>"
+        testImplementation "com.natura.android:test-commons:<version>"    
+    }
diff --git a/build.gradle b/build.gradle
new file mode 100644
index 0000000..b6f90fd
--- /dev/null
+++ b/build.gradle
@@ -0,0 +1,63 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    ext.kotlin_version = '1.3.72'
+    ext.android_tools_gradle = '3.5.1'
+
+    repositories {
+        google()
+        jcenter()
+
+    }
+    dependencies {
+        classpath "com.android.tools.build:gradle:$android_tools_gradle"
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath 'com.github.dcendents:android-maven-gradle-plugin:2.1'
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+
+        def githubProperties = new Properties()
+        githubProperties.load(new FileInputStream(rootProject.file("github_credentials.properties")))
+        maven {
+            name = "natds-android"
+            url = uri("https://maven.pkg.github.com/natura-cosmeticos/natds-android")
+            credentials {
+                username = githubProperties['github.username']
+                password = githubProperties['github.password']
+            }
+        }
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}
+
+ext {
+    // Sdk and tools
+    minSdkVersion = 21
+    targetSdkVersion = 29
+    compileSdkVersion = 29
+    buildToolsVersion = '29.0.2'
+
+    // App dependencies
+    androidXJunitVersion = '1.1.1'
+    androidXTestVersion = '1.2.0'
+    archLifecycleVersion = '2.1.0'
+    constraintLayoutVersion = '1.1.3'
+    coreKtxVersion = '1.3.0'
+    designSystemVersion = '0.5.0'
+    espressoVersion = '3.2.0'
+    junitExtVersion = '1.1.0'
+    junitJupiterVersion = '5.3.1'
+    junitVersion = '4.12'
+    koinVersion = '2.1.5'
+    ktlintVersion = '0.35.0'
+    materialVersion = '1.1.0'
+}
\ No newline at end of file
diff --git a/github_credentials.properties.sample b/github_credentials.properties.sample
new file mode 100644
index 0000000..26e7308
--- /dev/null
+++ b/github_credentials.properties.sample
@@ -0,0 +1,2 @@
+github.username=seunome
+github.password=suasenha
diff --git a/gradle.properties b/gradle.properties
new file mode 100644
index 0000000..23339e0
--- /dev/null
+++ b/gradle.properties
@@ -0,0 +1,21 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx1536m
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app's APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Automatically convert third-party libraries to use AndroidX
+android.enableJetifier=true
+# Kotlin code style for this project: "official" or "obsolete":
+kotlin.code.style=official
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..f6b961f
Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..261ea04
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Wed Jun 24 09:21:48 BRT 2020
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip
diff --git a/gradlew b/gradlew
new file mode 100755
index 0000000..cccdd3d
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"
diff --git a/gradlew.bat b/gradlew.bat
new file mode 100644
index 0000000..e95643d
--- /dev/null
+++ b/gradlew.bat
@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/settings.gradle b/settings.gradle
new file mode 100644
index 0000000..89037dd
--- /dev/null
+++ b/settings.gradle
@@ -0,0 +1,2 @@
+include ':testcommons'
+rootProject.name = 'nat-test-commons-android'
diff --git a/testcommons/.gitignore b/testcommons/.gitignore
new file mode 100644
index 0000000..567609b
--- /dev/null
+++ b/testcommons/.gitignore
@@ -0,0 +1 @@
+build/
diff --git a/testcommons/build.gradle b/testcommons/build.gradle
new file mode 100644
index 0000000..27359d0
--- /dev/null
+++ b/testcommons/build.gradle
@@ -0,0 +1,75 @@
+apply plugin: 'com.android.library'
+apply plugin: 'kotlin-android'
+apply from: "$rootDir/tools/publish.gradle"
+apply from: "$rootDir/tools/ktlint.gradle"
+
+android {
+    compileSdkVersion project.compileSdkVersion
+    buildToolsVersion project.buildToolsVersion
+
+    defaultConfig {
+        minSdkVersion project.minSdkVersion
+        targetSdkVersion project.targetSdkVersion
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        consumerProguardFiles 'consumer-rules.pro'
+
+        multiDexEnabled true
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    kotlinOptions {
+        jvmTarget = JavaVersion.VERSION_1_8.toString()
+    }
+
+    testOptions {
+        execution 'ANDROIDX_TEST_ORCHESTRATOR'
+    }
+
+    buildTypes {
+        debug {
+            testCoverageEnabled true
+        }
+
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
+    }
+
+    packagingOptions {
+        exclude 'META-INF/LICENSE*'
+        exclude 'META-INF/proguard/androidx-annotations.pro'
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+
+    implementation "androidx.arch.core:core-testing:$rootProject.archLifecycleVersion"
+    implementation "androidx.core:core-ktx:$rootProject.coreKtxVersion"
+    implementation "androidx.constraintlayout:constraintlayout:$rootProject.constraintLayoutVersion"
+    implementation "androidx.test.espresso:espresso-core:$rootProject.espressoVersion"
+    implementation "androidx.test.espresso:espresso-intents:$rootProject.espressoVersion"
+    implementation "androidx.test.ext:junit:$rootProject.androidXJunitVersion"
+    implementation "androidx.test:runner:$rootProject.androidXTestVersion"
+    implementation "com.google.android.material:material:$rootProject.materialVersion"
+    implementation "com.natura.android:designsystem:$rootProject.designSystemVersion"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation "org.junit.jupiter:junit-jupiter-api:$rootProject.junitJupiterVersion"
+    implementation "org.koin:koin-android:$rootProject.koinVersion"
+}
+
+kotlin {
+    experimental {
+        coroutines "enable"
+    }
+}
diff --git a/testcommons/consumer-rules.pro b/testcommons/consumer-rules.pro
new file mode 100644
index 0000000..4c04167
--- /dev/null
+++ b/testcommons/consumer-rules.pro
@@ -0,0 +1,4 @@
+-keepattributes *Annotation*
+-keepattributes SourceFile,LineNumberTable
+-keep public class * extends java.lang.Exception
+-renamesourcefileattribute SourceFile
\ No newline at end of file
diff --git a/testcommons/proguard-rules.pro b/testcommons/proguard-rules.pro
new file mode 100644
index 0000000..fd28590
--- /dev/null
+++ b/testcommons/proguard-rules.pro
@@ -0,0 +1,26 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
+
+-keepattributes *Annotation*
+-keepattributes SourceFile,LineNumberTable
+-keep public class * extends java.lang.Exception
+-renamesourcefileattribute SourceFile
\ No newline at end of file
diff --git a/testcommons/src/main/AndroidManifest.xml b/testcommons/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..cd0f37c
--- /dev/null
+++ b/testcommons/src/main/AndroidManifest.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest package="net.natura.testcommons" />
diff --git a/tools/ktlint.gradle b/tools/ktlint.gradle
new file mode 100644
index 0000000..111ae97
--- /dev/null
+++ b/tools/ktlint.gradle
@@ -0,0 +1,22 @@
+configurations {
+    ktlint
+}
+
+dependencies {
+    ktlint "com.pinterest:ktlint:$rootProject.ktlintVersion"
+}
+
+task ktlint(type: JavaExec, group: "verification") {
+    description = "Check Kotlin code style."
+    classpath = configurations.ktlint
+    main = "com.pinterest.ktlint.Main"
+    args "src/**/*.kt"
+}
+check.dependsOn ktlint
+
+task ktlintFormat(type: JavaExec, group: "formatting") {
+    description = "Fix Kotlin code style deviations."
+    classpath = configurations.ktlint
+    main = "com.pinterest.ktlint.Main"
+    args "-F", "src/**/*.kt"
+}
diff --git a/tools/publish.gradle b/tools/publish.gradle
new file mode 100644
index 0000000..ef1ebc7
--- /dev/null
+++ b/tools/publish.gradle
@@ -0,0 +1,39 @@
+apply plugin: 'maven-publish'
+
+def githubProperties = new Properties()
+if (file("github_credentials.properties").file) {
+    githubProperties.load(new FileInputStream(rootProject.file("github_credentials.properties")))
+}
+
+def getVersionName = { ->
+    return "1.0.0"
+}
+
+def getGroupId = { ->
+    return "com.natura.android"
+}
+
+def getArtifactId = { ->
+    return "test-commons"
+}
+
+publishing {
+    publications {
+        bar(MavenPublication) {
+            groupId getGroupId()
+            artifactId getArtifactId()
+            version getVersionName()
+            artifact("$buildDir/outputs/aar/${getArtifactId()}-release.aar")
+        }
+    }
+    repositories {
+        maven {
+            name = "nat-test-commons"
+            url = uri("https://maven.pkg.github.com/natura-cosmeticos/Nat-Test-Commons")
+            credentials {
+                username = githubProperties['github.username'] ?: System.getenv("GITHUB_USERNAME")
+                password = githubProperties['github.password'] ?: System.getenv("GITHUB_API_KEY")
+            }
+        }
+    }
+}