Initial project import

tools/v/vlib/yaml/yaml_test.v

@@ -0,0 +1,98 @@
+module yaml
+
+import os
+
+enum Role {
+	worker
+	manager
+}
+
+struct Address {
+	city string
+	zip  int
+}
+
+struct AppConfig {
+	name    string
+	role    Role @[json: 'role']
+	enabled bool
+	ports   []int
+	address Address
+	notes   string
+}
+
+fn test_parse_doc_queries_and_block_scalars() ! {
+	doc := parse_text('title: Example
+config: { enabled: true, retries: 3 }
+servers:
+  - host: api.local
+    ports: [80, 443]
+  - host: jobs.local
+quoted:
+  "a.b": 7
+notes: |
+  first line
+  second line
+folded: >
+  hello
+  world
+')!
+
+	assert doc.value('title').string() == 'Example'
+	assert doc.value('config.enabled').bool()
+	assert doc.value('config.retries').int() == 3
+	assert doc.value('servers[0].host').string() == 'api.local'
+	assert doc.value('servers[0].ports[1]').int() == 443
+	assert doc.value('quoted."a.b"').int() == 7
+	assert doc.value('notes').string() == 'first line\nsecond line\n'
+	assert doc.value('folded').string() == 'hello world\n'
+}
+
+fn test_generic_encode_decode_with_json_attrs() ! {
+	config := AppConfig{
+		name:    'worker'
+		role:    .manager
+		enabled: true
+		ports:   [8080, 9090]
+		address: Address{
+			city: 'Springwood'
+			zip:  1428
+		}
+		notes:   'line one\nline two'
+	}
+
+	encoded := encode(config)
+	assert encoded.contains('"role": "manager"')
+	assert encoded.contains('"address":')
+	assert encoded.contains('- 8080')
+
+	decoded := decode[AppConfig](encoded)!
+	assert decoded == config
+}
+
+fn test_file_helpers() ! {
+	path := os.join_path(os.vtmp_dir(), 'yaml_test_${os.getpid()}.yml')
+	defer {
+		os.rm(path) or {}
+	}
+	config := AppConfig{
+		name:    'batch11'
+		role:    .worker
+		enabled: false
+		ports:   [7000]
+		address: Address{
+			city: 'Moscow'
+			zip:  101000
+		}
+		notes:   'plain'
+	}
+
+	encode_file(path, config)!
+	decoded := decode_file[AppConfig](path)!
+	assert decoded == config
+
+	doc := parse_file(path)!
+	assert doc.value('name').string() == 'batch11'
+	assert doc.value('role').string() == 'worker'
+	assert doc.value('address.city').string() == 'Moscow'
+}