import: make it work most of the time with git repos

This includes real tests too.

tests/source-files/cn.wildfirechat.chat/emojilibrary/build.gradle

@@ -0,0 +1,34 @@
+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion 28
+
+
+    defaultConfig {
+        minSdkVersion 16
+        targetSdkVersion 28
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+
+    android {
+        lintOptions {
+            abortOnError false
+        }
+    }
+
+}
+
+dependencies {
+    implementation fileTree(include: ['*.jar'], dir: 'libs')
+    implementation 'androidx.appcompat:appcompat:1.0.0-beta01'
+}