Merge pull request #15 from CarlJi/0522

add example into README document

README.md

@@ -6,10 +6,56 @@
 [![codecov](https://codecov.io/gh/qiniu/goc/branch/master/graph/badge.svg)](https://codecov.io/gh/qiniu/goc)
 [![GoDoc](https://godoc.org/github.com/qiniu/goc?status.svg)](https://godoc.org/github.com/qiniu/goc)
 
-A Comprehensive Coverage Testing System for The Go Programming Language
+goc is a comprehensive coverage testing system for The Go Programming Language, especially for some complex scanrios，like system testing code coverage collecting and
+accurate testing.
+
 > **Note:**
 >
 > This readme and related documentation are Work in Progress.
 
 ## Installation
-```go get github.com/qiniu/goc```
+To install goc tool, you need to install Go first (**version 1.11+ is required**), then:
+
+```go get -u github.com/qiniu/goc```
+
+## Examples
+You can use goc tool in many scenarios.
+
+### Code Coverage Collection for your Golang System Tests
+Goc can collect code coverages at run time for your long-run golang applications. To do that, normally just need three steps:
+
+1. use `goc server` to start a service registry center:
+    ```
+    ➜  simple-go-server git:(master) ✗ goc server
+    ```
+2. use `goc build` to build the target service, and run the generated binary. Here let's take the [simeple-go-server](https://github.com/CarlJi/simple-go-server) project as example:
+    ```
+    ➜  simple-go-server git:(master) ✗ goc build .
+    ... // omit logs
+    ➜  simple-go-server git:(master) ✗ ./simple-go-server  
+    ```
+3. use `goc profile` to get the code coverage profile of the started simple server above:
+    ```
+    ➜  simple-go-server git:(master) ✗ goc profile
+    mode: atomic
+    enricofoltran/simple-go-server/main.go:30.13,48.33 13 1
+    enricofoltran/simple-go-server/main.go:48.33,50.3 1 0
+    enricofoltran/simple-go-server/main.go:52.2,65.12 5 1
+    enricofoltran/simple-go-server/main.go:65.12,74.46 7 1
+    enricofoltran/simple-go-server/main.go:74.46,76.4 1 0
+    ...   
+    ```
+    Enjoy, Have Fun!
+
+## RoadMap
+- [x] Support code coverage collection for system testing.
+- [ ] Support develop mode towards accurate testing.
+- [ ] Support code coverage diff based on Pull Requst.
+- [ ] Support code coverage counters clear for the services under test in runtime.
+- [ ] Optimize the performance costed by code coverage counters.
+
+## Contributing
+We welcome all kinds of contribution, including bug reports, feature requests, documentation improvements, UI refinements, etc. 
+
+## License
+Goc is released under the Apache 2.0 license. See [LICENSE.txt](https://github.com/qiniu/goc/blob/master/LICENSE.txt)

go.sum

@@ -548,6 +548,7 @@ github.com/openzipkin/zipkin-go v0.2.0/go.mod h1:NaW6tEwdmWMaCDZzg8sh+IBNOxHMPnh
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 github.com/otiai10/copy v1.0.2/go.mod h1:c7RpqBkwMom4bYTSkLSym4VSJz/XtncWRAj/J4PEIMY=
 github.com/otiai10/curr v0.0.0-20150429015615-9b4961190c95/go.mod h1:9qAhocn7zKJG+0mI8eUu6xqkFDYS2kb2saOteoSB3cE=
+github.com/otiai10/mint v1.3.0 h1:Ady6MKVezQwHBkGzLFbrsywyp09Ah7rkmfjV3Bcr5uc=
 github.com/otiai10/mint v1.3.0/go.mod h1:F5AjcsTsWUqX+Na9fpHb52P8pcRX2CI6A3ctIT91xUo=
 github.com/pborman/uuid v1.2.0/go.mod h1:X/NO0urCmaxf9VXbdlT7C2Yzkj2IKimNn4k+gtPdI/k=
 github.com/pelletier/go-buffruneio v0.2.0/go.mod h1:JkE26KsDizTr40EUHkXVtNPvgGtbSNq5BcowyYOWdKo=