introspection.unittest

1 module introspection.unittest_;
2 
3 import introspection.type;
4 import introspection.attribute;
5 import introspection.location;
6 
7 version(unittest) {
8   import fluent.asserts;
9 }
10 
11 alias TestFunction = void function();
12 
13 /// Structure representing an unittest
14 struct UnitTest {
15   ///
16   TestFunction testFunction;
17 
18   ///
19   Type type;
20 
21   ///
22   Attribute[] attributes;
23 
24   ///
25   Location location;
26 }
27 
28 ///
29 UnitTest describeUnitTest(alias T)() {
30   UnitTest test;
31 
32   test.testFunction = &T;
33 
34   test.type = describeType!(typeof(T));
35 
36   test.attributes = describeAttributeList!(__traits(getAttributes, T));
37 
38   auto location = __traits(getLocation, T);
39   test.location = Location(location[0], location[1], location[2]);
40 
41   return test;
42 }
43 
44 ///
45 UnitTest[] describeUnitTests(alias T)() {
46   UnitTest[] tests;
47 
48   static foreach(test; __traits(getUnitTests, T)) {
49     tests ~= describeUnitTest!test;
50   }
51 
52   return tests;
53 }
54 
55 /// it should describe this unittest
56 @("some attribute")
57 unittest {
58   auto result = describeUnitTests!(introspection.unittest_);
59 
60   result.length.should.equal(1);
61 
62   result[0].type.name.should.equal("void()");
63 
64   result[0].attributes.length.should.equal(1);
65   result[0].attributes[0].name.should.equal(`"some attribute"`);
66 
67   result[0].location.file.should.equal("source/introspection/unittest_.d");
68   result[0].location.line.should.be.greaterThan(0);
69   result[0].location.column.should.equal(1);
70 }