From cdd9f624138fcbccca5b855c5aecd151d96cca01 Mon Sep 17 00:00:00 2001
From: Szabolcs Toth <54896607+tothszabi@users.noreply.github.com>
Date: Wed, 18 Jan 2023 15:45:15 +0000
Subject: [PATCH] [CI-447] Add fallback apk (#85)

* Add fallback apk

* Update device list for testing
---
 README.md                                 |   4 ++--
 config.go                                 |  25 +++++++++++++++++----
 maintenance/maintenance_test.go           |  26 ++++++++--------------
 resources/simple-fallback-bitrise-app.apk | Bin 0 -> 8883 bytes
 step.yml                                  |   3 ++-
 5 files changed, 34 insertions(+), 24 deletions(-)
 create mode 100644 resources/simple-fallback-bitrise-app.apk

diff --git a/README.md b/README.md
index fb7a1ac..be02c59 100644
--- a/README.md
+++ b/README.md
@@ -60,8 +60,8 @@ You can also run this step directly with [Bitrise CLI](https://github.com/bitris
 
 | Key | Description | Flags | Default |
 | --- | --- | --- | --- |
-| `app_path` | The path to the app to test (APK or AAB). By default `android-build` and `android-build-for-ui-testing` Steps export the `BITRISE_APK_PATH` Env Var, so you won't need to change this input. Can specify an APK (`$BITRISE_APK_PATH`) or AAB (Android App Bundle) as input (`$BITRISE_AAB_PATH`).  | required | `$BITRISE_APK_PATH` |
-| `test_devices` | Format: One device configuration per line and the parameters are separated with `,` in the order of: `deviceID,version,language,orientation`  For example: `NexusLowRes,24,en,portrait`  `NexusLowRes,24,en,landscape`  Available devices and its versions: ``` ┌───────────────────┬──────────┬─────────────────────────────────────┬─────────┬─────────────┬─────────────────────────┬──────┐ │      MODEL_ID     │   MAKE   │              MODEL_NAME             │   FORM  │  RESOLUTION │      OS_VERSION_IDS     │ TAGS │ ├───────────────────┼──────────┼─────────────────────────────────────┼─────────┼─────────────┼─────────────────────────┼──────┤ │ Nexus10           │ Samsung  │ Nexus 10                            │ VIRTUAL │ 2560 x 1600 │ 19,21,22                │      │ │ Nexus4            │ LG       │ Nexus 4                             │ VIRTUAL │ 1280 x 768  │ 19,21,22                │      │ │ Nexus5            │ LG       │ Nexus 5                             │ VIRTUAL │ 1920 x 1080 │ 19,21,22,23             │      │ │ Nexus5X           │ LG       │ Nexus 5X                            │ VIRTUAL │ 1920 x 1080 │ 23,24,25,26             │      │ │ Nexus6            │ Motorola │ Nexus 6                             │ VIRTUAL │ 2560 x 1440 │ 21,22,23,24,25          │      │ │ Nexus6P           │ Google   │ Nexus 6P                            │ VIRTUAL │ 2560 x 1440 │ 23,24,25,26,27          │      │ │ Nexus7            │ Asus     │ Nexus 7 (2012)                      │ VIRTUAL │ 1280 x 800  │ 19,21,22                │      │ │ Nexus7_clone_16_9 │ Generic  │ Nexus7 clone, DVD 16:9 aspect ratio │ VIRTUAL │ 1280 x 720  │ 23,24,25,26             │ beta │ │ Nexus9            │ HTC      │ Nexus 9                             │ VIRTUAL │ 2048 x 1536 │ 21,22,23,24,25          │      │ │ NexusLowRes       │ Generic  │ Low-resolution MDPI phone           │ VIRTUAL │  640 x 360  │ 23,24,25,26,27,28,29,30 │      │ │ Pixel2            │ Google   │ Pixel 2                             │ VIRTUAL │ 1920 x 1080 │ 26,27,28,29,30          │      │ │ Pixel3            │ Google   │ Pixel 3                             │ VIRTUAL │ 2160 x 1080 │ 30                      │      │ └───────────────────┴──────────┴─────────────────────────────────────┴─────────┴─────────────┴─────────────────────────┴──────┘         ```  | required | `NexusLowRes,24,en,portrait` |
+| `app_path` | The path to the app to test (APK or AAB). By default `android-build` and `android-build-for-ui-testing` Steps export the `BITRISE_APK_PATH` Env Var, so you won't need to change this input. Can specify an APK (`$BITRISE_APK_PATH`) or AAB (Android App Bundle) as input (`$BITRISE_AAB_PATH`).  If nothing is specified then the Step will use a default empty Application APK. This will help the library instrumentation tests as it can be used as a shell where the tests will be running.  |  | `$BITRISE_APK_PATH` |
+| `test_devices` | Format: One device configuration per line and the parameters are separated with `,` in the order of: `deviceID,version,language,orientation`  For example: `NexusLowRes,24,en,portrait`  `NexusLowRes,24,en,landscape`  Available devices and its versions: ``` ┌─────────────────────┬──────────┬──────────────────────────────────────────┬─────────┬─────────────┬─────────────────────────┬──────────────────┐ │       MODEL_ID      │   MAKE   │                MODEL_NAME                │   FORM  │  RESOLUTION │      OS_VERSION_IDS     │       TAGS       │ ├─────────────────────┼──────────┼──────────────────────────────────────────┼─────────┼─────────────┼─────────────────────────┼──────────────────┤ │ AmatiTvEmulator     │ Google   │ Google TV Amati                          │ VIRTUAL │ 1080 x 1920 │ 29                      │ beta=29          │ │ AndroidTablet270dpi │ Generic  │ Generic 720x1600 Android tablet @ 270dpi │ VIRTUAL │ 1600 x 720  │ 30                      │                  │ │ GoogleTvEmulator    │ Google   │ Google TV                                │ VIRTUAL │  720 x 1280 │ 30                      │ beta=30          │ │ MediumPhone.arm     │ Generic  │ MediumPhone (ARM)                        │ VIRTUAL │ 2400 x 1080 │ 26,27,28,29,30,32,33    │ preview=33, beta │ │ MediumTablet.arm    │ Generic  │ MediumTablet (ARM)                       │ VIRTUAL │ 2560 x 1600 │ 26,27,28,29,30,32,33    │ preview=33, beta │ │ Nexus10             │ Samsung  │ Nexus 10                                 │ VIRTUAL │ 2560 x 1600 │ 19,21,22                │ deprecated=19    │ │ Nexus4              │ LG       │ Nexus 4                                  │ VIRTUAL │ 1280 x 768  │ 19,21,22                │ deprecated=19    │ │ Nexus5              │ LG       │ Nexus 5                                  │ VIRTUAL │ 1920 x 1080 │ 19,21,22,23             │ deprecated=19    │ │ Nexus5X             │ LG       │ Nexus 5X                                 │ VIRTUAL │ 1920 x 1080 │ 23,24,25,26             │                  │ │ Nexus6              │ Motorola │ Nexus 6                                  │ VIRTUAL │ 2560 x 1440 │ 21,22,23,24,25          │                  │ │ Nexus6P             │ Google   │ Nexus 6P                                 │ VIRTUAL │ 2560 x 1440 │ 23,24,25,26,27          │                  │ │ Nexus7              │ Asus     │ Nexus 7 (2012)                           │ VIRTUAL │ 1280 x 800  │ 19,21,22                │ deprecated=19    │ │ Nexus7_clone_16_9   │ Generic  │ Nexus7 clone, DVD 16:9 aspect ratio      │ VIRTUAL │ 1280 x 720  │ 23,24,25,26             │ beta             │ │ Nexus9              │ HTC      │ Nexus 9                                  │ VIRTUAL │ 2048 x 1536 │ 21,22,23,24,25          │                  │ │ NexusLowRes         │ Generic  │ Low-resolution MDPI phone                │ VIRTUAL │  640 x 360  │ 23,24,25,26,27,28,29,30 │                  │ │ Pixel2              │ Google   │ Pixel 2                                  │ VIRTUAL │ 1920 x 1080 │ 26,27,28,29,30          │                  │ │ Pixel2.arm          │ Google   │ Pixel 2 (ARM)                            │ VIRTUAL │ 1920 x 1080 │ 26,27,28,29,30,32,33    │ preview=33, beta │ │ Pixel3              │ Google   │ Pixel 3                                  │ VIRTUAL │ 2160 x 1080 │ 30                      │                  │ │ SmallPhone.arm      │ Generic  │ SmallPhone (ARM)                         │ VIRTUAL │ 1280 x 720  │ 26,27,28,29,30,32,33    │ preview=33, beta │ └─────────────────────┴──────────┴──────────────────────────────────────────┴─────────┴─────────────┴─────────────────────────┴──────────────────┘      ```  | required | `NexusLowRes,24,en,portrait` |
 | `test_type` | The type of your test you want to run on the devices. Find more properties below in the selected test type's group.  | required | `robo` |
 | `test_apk_path` | The path to the APK that contains instrumentation tests. To build this, you can run the [Build for UI testing](https://bitrise.io/integrations/steps/android-build-for-ui-testing) Step (before this Step). |  | `$BITRISE_TEST_APK_PATH` |
 | `inst_test_runner_class` | The fully-qualified Java class name of the instrumentation test runner (leave empty to use the last name extracted from the APK manifest). |  |  |
diff --git a/config.go b/config.go
index f8f7721..fa41183 100644
--- a/config.go
+++ b/config.go
@@ -2,15 +2,24 @@ package main
 
 import (
 	"bufio"
+	_ "embed"
 	"fmt"
 	"os"
+	"path/filepath"
 	"strings"
 	"text/tabwriter"
 
+	"github.com/bitrise-io/go-utils/fileutil"
 	"github.com/bitrise-io/go-utils/log"
+	"github.com/bitrise-io/go-utils/pathutil"
 	testing "google.golang.org/api/testing/v1"
 )
 
+// This embedded basic application was created based on the https://github.com/tothszabi/BasicApp repository.
+//
+//go:embed resources/simple-fallback-bitrise-app.apk
+var emptyAndroidApp []byte
+
 // ConfigsModel ...
 type ConfigsModel struct {
 	// api
@@ -134,10 +143,18 @@ func (configs *ConfigsModel) validate() error {
 	}
 
 	if strings.TrimSpace(configs.AppPath) == "" {
-		return fmt.Errorf("- AppPath: required variable is not present")
-	}
-	if _, err := os.Stat(configs.AppPath); err != nil {
-		return fmt.Errorf("- AppPath: failed to get file info, error: %s", err)
+		log.Warnf("Warning: Using embedded Android application as AppPath value is empty")
+
+		path, err := pathutil.NormalizedOSTempDirPath("")
+		if err != nil {
+			return fmt.Errorf("- AppPath: failed to create temporary directory for embedded application")
+		}
+		appPath := filepath.Join(path, "app.apk")
+		if err = fileutil.WriteBytesToFile(appPath, emptyAndroidApp); err != nil {
+			return fmt.Errorf("- AppPath: failed to write embedded application to the temporary directory")
+		}
+
+		configs.AppPath = appPath
 	}
 
 	if configs.TestType == testTypeInstrumentation {
diff --git a/maintenance/maintenance_test.go b/maintenance/maintenance_test.go
index d184bab..6820f45 100644
--- a/maintenance/maintenance_test.go
+++ b/maintenance/maintenance_test.go
@@ -203,10 +203,8 @@ screenDensity:          320
 screenX:                1600
 screenY:                2560
 supportedAbis[0]:       x86
-supportedVersionIds[0]: 19
-supportedVersionIds[1]: 21
-supportedVersionIds[2]: 22
-tags[0]:                deprecated=19
+supportedVersionIds[0]: 21
+supportedVersionIds[1]: 22
 ---
 brand:                  Google
 codename:               Nexus4
@@ -219,10 +217,8 @@ screenDensity:          320
 screenX:                768
 screenY:                1280
 supportedAbis[0]:       x86
-supportedVersionIds[0]: 19
-supportedVersionIds[1]: 21
-supportedVersionIds[2]: 22
-tags[0]:                deprecated=19
+supportedVersionIds[0]: 21
+supportedVersionIds[1]: 22
 ---
 brand:                  Google
 codename:               Nexus5
@@ -237,11 +233,9 @@ screenY:                1920
 supportedAbis[0]:       x86
 supportedAbis[1]:       23:armeabi
 supportedAbis[2]:       23:armeabi-v7a
-supportedVersionIds[0]: 19
-supportedVersionIds[1]: 21
-supportedVersionIds[2]: 22
-supportedVersionIds[3]: 23
-tags[0]:                deprecated=19
+supportedVersionIds[0]: 21
+supportedVersionIds[1]: 22
+supportedVersionIds[2]: 23
 ---
 brand:                  Google
 codename:               Nexus5X
@@ -328,10 +322,8 @@ screenDensity:          213
 screenX:                800
 screenY:                1280
 supportedAbis[0]:       x86
-supportedVersionIds[0]: 19
-supportedVersionIds[1]: 21
-supportedVersionIds[2]: 22
-tags[0]:                deprecated=19
+supportedVersionIds[0]: 21
+supportedVersionIds[1]: 22
 ---
 brand:                  Generic
 codename:               Nexus7_clone_16_9
diff --git a/resources/simple-fallback-bitrise-app.apk b/resources/simple-fallback-bitrise-app.apk
new file mode 100644
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diff --git a/step.yml b/step.yml
index dd8e99c..2d2e789 100755
--- a/step.yml
+++ b/step.yml
@@ -71,7 +71,8 @@ inputs:
       description: |
         The path to the app to test (APK or AAB). By default `android-build` and `android-build-for-ui-testing` Steps export the `BITRISE_APK_PATH` Env Var, so you won't need to change this input.
         Can specify an APK (`$BITRISE_APK_PATH`) or AAB (Android App Bundle) as input (`$BITRISE_AAB_PATH`).
-      is_required: true
+        
+        If nothing is specified then the Step will use a default empty Application APK. This will help the library instrumentation tests as it can be used as a shell where the tests will be running.
   - test_devices: "NexusLowRes,24,en,portrait"
     opts:
       title: "Test devices"