Add support for script test definitions

spec/changelog.yml

@@ -12,6 +12,9 @@
     - description: Add support for semantic_text field definition.
       type: enhancement
       link: https://github.com/elastic/package-spec/pull/807
+    - description: Add support for script testing in data streams.
+      type: enhancement
+      link: https://github.com/elastic/package-spec/pull/985
 - version: 3.5.0
   changes:
     - description: Add `duration` variable data type with `min_duration` and `max_duration` validation properties.

spec/integration/data_stream/_dev/test/scripts/spec.yml

@@ -0,0 +1,8 @@
+spec:
+  additionalContents: false
+  contents:
+    - description: Script test definitions.
+      type: file
+      contentMediaType: "text/plain"
+      pattern: '^.+\.(txt|txtar)$'
+      required: false

spec/integration/data_stream/_dev/test/spec.yml

@@ -21,3 +21,8 @@ spec:
       name: policy
       required: false
       $ref: "./policy/spec.yml"
+    - description: Folder containing script tests
+      type: folder
+      name: scripts
+      required: false
+      $ref: "./scripts/spec.yml"

test/packages/good_v3/data_stream/script_tests/_dev/test/scripts/noop.txt

@@ -0,0 +1 @@
+# This is a noop test.

test/packages/good_v3/data_stream/script_tests/_dev/test/scripts/noop.txtar

@@ -0,0 +1 @@
+# This is a noop test.

test/packages/good_v3/data_stream/script_tests/fields/base-fields.yml

@@ -0,0 +1,12 @@
+- name: data_stream.type
+  type: constant_keyword
+  description: Data stream type.
+- name: data_stream.dataset
+  type: constant_keyword
+  description: Data stream dataset.
+- name: data_stream.namespace
+  type: constant_keyword
+  description: Data stream namespace.
+- name: '@timestamp'
+  type: date
+  description: Event timestamp.

test/packages/good_v3/data_stream/script_tests/fields/some_fields.yml

@@ -0,0 +1,28 @@
+- name: source
+  title: Source
+  group: 2
+  type: group
+  fields:
+    - name: geo.city_name
+      level: core
+      type: keyword
+      description: City name.
+      ignore_above: 1024
+    - name: geo.location
+      level: core
+      type: geo_point
+      description: Longitude and latitude.
+    - name: geo.region_iso_code
+      level: core
+      type: keyword
+      description: Region ISO code.
+      ignore_above: 1024
+    - name: geo.region_name
+      level: core
+      type: keyword
+      description: Region name.
+      ignore_above: 1024
+- name: foobar
+  type: text
+  description: A field with a pattern defined
+  pattern: '^[a-zA-Z]$'

test/packages/good_v3/data_stream/script_tests/manifest.yml

@@ -0,0 +1,2 @@
+title: Package with script tests
+type: metrics