1 files changed, 48 insertions, 0 deletions
diff --git a/node_modules/ava/lib/validate-test.js b/node_modules/ava/lib/validate-test.js
new file mode 100644
index 000000000..8258a5990
--- /dev/null
+++ b/node_modules/ava/lib/validate-test.js
@@ -0,0 +1,48 @@
+'use strict';
+
+function validate(title, fn, metadata) {
+	if (metadata.type !== 'test') {
+		if (metadata.exclusive) {
+			return '`only` is only for tests and cannot be used with hooks';
+		}
+
+		if (metadata.failing) {
+			return '`failing` is only for tests and cannot be used with hooks';
+		}
+
+		if (metadata.todo) {
+			return '`todo` is only for documentation of future tests and cannot be used with hooks';
+		}
+	}
+
+	if (metadata.todo) {
+		if (typeof fn === 'function') {
+			return '`todo` tests are not allowed to have an implementation. Use ' +
+			'`test.skip()` for tests with an implementation.';
+		}
+
+		if (typeof title !== 'string') {
+			return '`todo` tests require a title';
+		}
+
+		if (metadata.skipped || metadata.failing || metadata.exclusive) {
+			return '`todo` tests are just for documentation and cannot be used with `skip`, `only`, or `failing`';
+		}
+	} else if (typeof fn !== 'function') {
+		return 'Expected an implementation. Use `test.todo()` for tests without an implementation.';
+	}
+
+	if (metadata.always) {
+		if (!(metadata.type === 'after' || metadata.type === 'afterEach')) {
+			return '`always` can only be used with `after` and `afterEach`';
+		}
+	}
+
+	if (metadata.skipped && metadata.exclusive) {
+		return '`only` tests cannot be skipped';
+	}
+
+	return null;
+}
+
+module.exports = validate;