Merge pull request #21 from lempiji/update-travis

Update travis

.travis.yml

@@ -5,8 +5,15 @@ os:
   - osx
 
 d:
+  # support 3 versions
   - dmd
+  - dmd-2.079.0
+  - dmd-2.078.3
+  - dmd-2.077.1
   - ldc
+  - ldc-1.8.0
+  - ldc-1.7.0
+  - ldc-1.6.0
 
 script:
   - dub test -b unittest-cov

README.md

@@ -3,9 +3,6 @@
 [![Dub version](https://img.shields.io/dub/v/rx.svg)](https://code.dlang.org/packages/rx)
 [![MIT License](http://img.shields.io/badge/license-MIT-blue.svg?style=flat)](http://img.shields.io/badge/license-MIT-blue.svg?style=flat)
 [![Build Status](https://travis-ci.org/lempiji/rx.svg?branch=master)](https://travis-ci.org/lempiji/rx)
-<!---
-[![Coverage Status](https://coveralls.io/repos/github/lempiji/rx/badge.svg?branch=master)](https://coveralls.io/github/lempiji/rx?branch=master)
--->
 
 ### Overview
 
@@ -45,7 +42,6 @@ void main()
     // result is like this
     assert(result == ["0", "2", "4", "6", "8"]);
 }
-
 ```
 
 And [more examples](https://github.com/lempiji/rx/tree/master/examples) or [Documents](https://lempiji.github.io/rx)
@@ -93,6 +89,8 @@ interface Observable(E)
     Disposable subscribe(Observer!E observer);
 }
 ```
+### Supported Compilers
+Supported compilers are `dmd` and `ldc` that latest 3 versions.
 
 ### License
 

source/rx/algorithm/debounce.d

@@ -160,8 +160,9 @@ unittest
     Thread.sleep(dur!"msecs"(100));
 
     import std.algorithm : equal;
+    import std.format : format;
 
-    assert(equal(buf.data, [9]));
+    assert(equal(buf.data, [9]), "buf.data is %s".format(buf.data));
 }
 
 unittest