Update readme, create changelog, and add some tests
diff --git a/README.md b/README.md
index 5b8a25e..a41a456 100644
--- a/README.md
+++ b/README.md
@@ -48,14 +48,14 @@
### Strict mode (default)
-* Tag names may only the characters a-z, A-Z, 0-9, underscore, period and minus. Other characters in tags will cause a TemplateException to be thrown during parsing.
+* Tag names may only contain the characters a-z, A-Z, 0-9, underscore, period and minus. Other characters in tags will cause a TemplateException to be thrown during parsing.
-* During rendering variables which resolve to null will cause a TemplateException will be thrown.
+* During rendering variables which are missing will cause a TemplateException will be thrown.
### Lenient mode
* Tag names may use any characters.
-* During rendering variables which resolve to null will be silently ignored.
+* During rendering variables which are missing will be silently ignored.
## Nested paths
diff --git a/test/mustache_test.dart b/test/mustache_test.dart
index 7ba3216..8e4f686 100644
--- a/test/mustache_test.dart
+++ b/test/mustache_test.dart
@@ -9,6 +9,7 @@
const BAD_VALUE_INV_SECTION = 'Invalid value type for inverse section';
const BAD_TAG_NAME = 'Unless in lenient mode tags may only contain';
const VALUE_NULL = 'Value was null or missing';
+const VALUE_MISSING = 'Value was missing';
Template parse(String source, {bool lenient: false})
=> new Template(source, lenient: lenient);
@@ -53,11 +54,13 @@
expect(ex is TemplateException, isTrue);
expect(ex.message, startsWith(BAD_VALUE_SECTION));
});
+
test('True', () {
var output = parse('{{#section}}_ok_{{/section}}')
.renderString({"section": true});
expect(output, equals('_ok_'));
});
+
test('Nested', () {
var output = parse('{{#section}}.{{var}}.{{#nested}}_{{nestedvar}}_{{/nested}}.{{/section}}')
.renderString({"section": {
@@ -69,6 +72,29 @@
}});
expect(output, equals('.bob._jim__sally_.'));
});
+
+ test('isNotEmpty', () {
+ var t = new Template(
+'''{{^ section }}
+Empty.
+{{/ section }}
+{{# section.isNotEmpty }}
+ <ul>
+ {{# section }}
+ <li>{{ . }}</li>
+ {{/ section }}
+ </ul>
+{{/ section.isNotEmpty }}
+''');
+ expect(t.renderString({"section": [1, 2 ,3] }), equals(
+''' <ul>
+ <li>1</li>
+ <li>2</li>
+ <li>3</li>
+ </ul>
+'''));
+ expect(t.renderString({"section": [] }), equals('Empty.\n'));
+ });
test('Whitespace in section tags', () {
expect(parse('{{#foo.bar}}oi{{/foo.bar}}').renderString({'foo': {'bar': true}}), equals('oi'));
@@ -273,6 +299,18 @@
expectFail(ex, null, null, BAD_TAG_NAME);
});
+ test('Missing variable', () {
+ var source = r'{{#section}}_{{var}}_{{/section}}';
+ var ex = renderFail(source, {"section": {}});
+ expectFail(ex, null, null, VALUE_MISSING);
+ });
+
+ // Null variables shouldn't be a problem.
+ test('Null variable', () {
+ var t = new Template('{{#section}}_{{var}}_{{/section}}');
+ var output = t.renderString({"section": {'var': null}});
+ expect(output, equals('__'));
+ });
});
group('Lenient', () {
