update

cue.mod/pkg/universe.dagger.io/yarn/test/data/bar/package.json

@@ -0,0 +1,12 @@
+{
+	"name": "test",
+	"main": "index.js",
+	"license": {
+	  "type": "Apache-2.0",
+	  "url": "https://opensource.org/licenses/apache2.0.php"
+	},
+	"scripts": {
+		"build": "mkdir -p ./build && cp /.env ./build/env"
+	}
+  }
+  

cue.mod/pkg/universe.dagger.io/yarn/test/data/foo/package.json

@@ -0,0 +1,11 @@
+{
+  "name": "test",
+  "main": "index.js",
+  "license": {
+    "type": "Apache-2.0",
+    "url": "https://opensource.org/licenses/apache2.0.php"
+  },
+  "scripts": {
+	  "build": "mkdir -p ./build && echo output > ./build/test && touch .env && cp .env ./build/"
+  }
+}

cue.mod/pkg/universe.dagger.io/yarn/test/test.bats

@@ -0,0 +1,9 @@
+setup() {
+    load '../../bats_helpers'
+
+    common_setup
+}
+
+@test "yarn" {
+    dagger "do" test
+}

cue.mod/pkg/universe.dagger.io/yarn/test/test.cue

@@ -0,0 +1,91 @@
+package yarn
+
+import (
+	"dagger.io/dagger"
+	"dagger.io/dagger/core"
+
+	"universe.dagger.io/docker"
+	"universe.dagger.io/yarn"
+)
+
+dagger.#Plan & {
+	client: filesystem: {
+		"./data/foo": read: contents: dagger.#FS
+		"./data/bar": read: contents: dagger.#FS
+	}
+
+	actions: test: {
+
+		// Configuration for all tests
+		common: {
+			data: client.filesystem."./data/foo".read.contents
+		}
+
+		// Run yarn.#Build
+		simple: {
+			build: yarn.#Build & {
+				source: common.data
+			}
+
+			verify: #AssertFile & {
+				input:    build.output
+				path:     "test"
+				contents: "output\n"
+			}
+		}
+
+		// Run yarn.#Build with a custom name
+		customName: {
+			build: yarn.#Build & {
+				name:   "My Build"
+				source: common.data
+			}
+			verify: #AssertFile & {
+				input:    build.output
+				path:     "test"
+				contents: "output\n"
+			}
+		}
+
+		// Run yarn.#Build with a custom docker image
+		customImage: {
+			buildImage: docker.#Build & {
+				steps: [
+					docker.#Pull & {
+						source: "alpine"
+					},
+					docker.#Run & {
+						command: {
+							name: "apk"
+							args: ["add", "yarn", "bash"]
+						}
+					},
+				]
+			}
+
+			image: build.output
+
+			build: yarn.#Build & {
+				source: common.data
+				container: #input: buildImage.output
+			}
+		}
+	}
+}
+
+// Make an assertion on the contents of a file
+#AssertFile: {
+	input:    dagger.#FS
+	path:     string
+	contents: string
+
+	_read: core.#ReadFile & {
+		"input": input
+		"path":  path
+	}
+
+	actual: _read.contents
+
+	// Assertion
+	contents: actual
+}