Use a smaller container in tests that pull

...where possible. The alpine image is small but hello-world is smaller.

Author: lnhrdt

src/testFeatures/kotlin/dev/codebandits/container/gradle/DockerPullTest.kt

@@ -9,13 +9,13 @@ import strikt.assertions.contains
 import strikt.assertions.isEqualTo
 import strikt.assertions.isNotNull
 import strikt.assertions.isTrue
-import java.util.UUID
+import java.util.*
 
 class DockerPullTest : GradleProjectTest() {
 
   @Test
   fun `dockerPull pulls the specified image`() {
-    removeImage("alpine:3.18.9")
+    removeImage("hello-world:latest")
 
     buildGradleKtsFile.appendLine(
       """
@@ -26,9 +26,9 @@ class DockerPullTest : GradleProjectTest() {
       }
       
       tasks {
-        register<ContainerTask>("pullAlpineImage") {
+        register<ContainerTask>("pullImage") {
           dockerPull {
-            image = "alpine:3.18.9"
+            image = "hello-world:latest"
           }
         }
       }
@@ -38,14 +38,14 @@ class DockerPullTest : GradleProjectTest() {
     val result = GradleRunner.create()
       .withPluginClasspath()
       .withProjectDir(projectDirectory.toFile())
-      .withArguments("pullAlpineImage")
+      .withArguments("pullImage")
       .build()
 
     expectThat(result).and {
-      get { task(":pullAlpineImage") }.isNotNull().get { outcome }.isEqualTo(TaskOutcome.SUCCESS)
+      get { task(":pullImage") }.isNotNull().get { outcome }.isEqualTo(TaskOutcome.SUCCESS)
     }
 
-    expectThat(imageExists("alpine:3.18.9")).isTrue()
+    expectThat(imageExists("hello-world:latest")).isTrue()
   }
 
   @Test
@@ -95,4 +95,3 @@ class DockerPullTest : GradleProjectTest() {
     return exitCode == 0
   }
 }
-

src/testFeatures/kotlin/dev/codebandits/container/gradle/DockerRemoveTest.kt

@@ -15,7 +15,7 @@ class DockerRemoveTest : GradleProjectTest() {
 
   @Test
   fun `dockerRemove removes the specified image`() {
-    pullImage("alpine:3.18.9")
+    pullImage("hello-world:latest")
 
     buildGradleKtsFile.appendLine(
       """
@@ -26,9 +26,9 @@ class DockerRemoveTest : GradleProjectTest() {
       }
       
       tasks {
-        register<ContainerTask>("removeAlpineImage") {
+        register<ContainerTask>("removeImage") {
           dockerRemove {
-            image = "alpine:3.18.9"
+            image = "hello-world:latest"
           }
         }
       }
@@ -38,14 +38,14 @@ class DockerRemoveTest : GradleProjectTest() {
     val result = GradleRunner.create()
       .withPluginClasspath()
       .withProjectDir(projectDirectory.toFile())
-      .withArguments("removeAlpineImage")
+      .withArguments("removeImage")
       .build()
 
     expectThat(result).and {
-      get { task(":removeAlpineImage") }.isNotNull().get { outcome }.isEqualTo(TaskOutcome.SUCCESS)
+      get { task(":removeImage") }.isNotNull().get { outcome }.isEqualTo(TaskOutcome.SUCCESS)
     }
 
-    expectThat(imageExists("alpine:3.18.9")).isFalse()
+    expectThat(imageExists("hello-world:latest")).isFalse()
   }
 
   @Test

src/testFeatures/kotlin/dev/codebandits/container/gradle/TaskImagesTest.kt

@@ -162,7 +162,7 @@ class TaskImagesTest : GradleProjectTest() {
       
       tasks {
         register("useImage") {
-          inputRegistryImage("alpine:latest")
+          inputRegistryImage("hello-world:latest")
           outputs.upToDateWhen { true }
           doLast { }
         }
@@ -205,7 +205,7 @@ class TaskImagesTest : GradleProjectTest() {
       
       tasks {
         register("useImage") {
-          inputRegistryImage("docker.io/library/alpine:latest")
+          inputRegistryImage("docker.io/library/hello-world:latest")
           outputs.upToDateWhen { true }
           doLast { }
         }