Refactored label tests (#6).

src/label.tests.ts

@@ -3,15 +3,5 @@ import * as label from "./label"
 import * as shared from "./shared.tests"
 
 describe(`label`, () => {
-  shared.run(shared.nonArrays, value => shared.rejects(
-    label.schema, value, `instance`, `is not of a type(s) array`
-  ))
-  shared.run(shared.emptyArrays, value => shared.accepts(label.schema, value))
-  shared.testLabelPart(label.schema, instance => [instance], `instance[0]`)
-  describe(`example`, () => shared.accepts(label.schema, [
-    [`for_eg`, `la_run`, `mu_par`],
-    [],
-    [`just_1`],
-    [`long_w`, `2thetp`, `wanna_`, `depest`, `lore__`]
-  ]))
+  shared.testLabel(label.schema, value => value, `instance`)
 })

src/shared.tests.ts

@@ -802,3 +802,21 @@ export function testLabelPart(
   describe(`multiple identifiers`, () => accepts(schema, instanceFactory([`for_eg`, `val_id`, `like__`, `__this`])))
   describe(`duplicate identifiers`, () => accepts(schema, instanceFactory([`for_eg`, `val_id`, `like__`, `val_id`, `__this`])))
 }
+
+export function testLabel(
+  schema: jsonschema.Schema,
+  instanceFactory: InstanceFactory,
+  property: string
+): void {
+  run(nonArrays, value => rejects(
+    schema, instanceFactory(value), property, `is not of a type(s) array`
+  ))
+  run(emptyArrays, value => accepts(schema, instanceFactory(value)))
+  testLabelPart(schema, value => instanceFactory([value]), `${property}[0]`)
+  describe(`example`, () => accepts(schema, instanceFactory([
+    [`for_eg`, `la_run`, `mu_par`],
+    [],
+    [`just_1`],
+    [`long_w`, `2thetp`, `wanna_`, `depest`, `lore__`]
+  ])))
+}