Add coverage gathering

.luacov

@@ -0,0 +1 @@
+return {modules = {argparse = "src/argparse.lua"}}

.travis.yml

@@ -14,10 +14,14 @@ before_install:
   - luarocks install luacheck
   - luarocks install dkjson --deps-mode=none
   - luarocks install busted
+  - luarocks install luacov-coveralls
 
 install:
   - luarocks make
 
 script:
-  - busted
   - luacheck src spec
+  - busted -c
+
+after_success:
+  - luacov-coveralls

README.md

@@ -1,6 +1,7 @@
 # argparse
 
 [![Build Status](https://travis-ci.org/mpeterv/argparse.png?branch=master)](https://travis-ci.org/mpeterv/argparse)
+[![Coverage Status](https://coveralls.io/repos/mpeterv/argparse/badge.svg?branch=master&service=github)](https://coveralls.io/github/mpeterv/argparse?branch=master)
 
 Argparse is a feature-rich command line parser for Lua inspired by argparse for Python.
 
@@ -113,7 +114,7 @@ The tutorial is available [online](http://argparse.readthedocs.org) and in the `
 
 ## Testing
 
-argparse comes with a testing suite located in `spec` directory. [busted](http://olivinelabs.com/busted/) is required for testing, it can be installed using LuaRocks. Run the tests using `busted spec` command from the argparse folder.
+argparse comes with a testing suite located in `spec` directory. [busted](http://olivinelabs.com/busted/) is required for testing, it can be installed using LuaRocks. Run the tests using `busted` command from the argparse folder.
 
 ## License
 

spec/integrity_spec.lua

@@ -1,5 +1,14 @@
+local script = "./spec/script.lua"
+local script_cmd = "lua"
+
+if package.loaded["luacov.runner"] then
+   script_cmd = script_cmd .. " -lluacov"
+end
+
+script_cmd = script_cmd .. " " .. script
+
 local function get_output(args)
-   local handler = io.popen("./spec/script " .. args .. " 2>&1", "r")
+   local handler = io.popen(script_cmd .. " " .. args .. " 2>&1", "r")
    local output = handler:read("*a")
    handler:close()
    return output
@@ -9,7 +18,7 @@ describe("tests related to CLI behaviour #unsafe", function()
    describe("error messages", function()
       it("generates correct error message without arguments", function()
          assert.equal([[
-Usage: ./spec/script [-v] [-h] <input> [<command>] ...
+Usage: ]]..script..[[ [-v] [-h] <input> [<command>] ...
 
 Error: too few arguments
 ]], get_output(""))
@@ -17,7 +26,7 @@ Error: too few arguments
 
       it("generates correct error message with too many arguments", function()
          assert.equal([[
-Usage: ./spec/script [-v] [-h] <input> [<command>] ...
+Usage: ]]..script..[[ [-v] [-h] <input> [<command>] ...
 
 Error: unknown command 'bar'
 ]], get_output("foo bar"))
@@ -25,7 +34,7 @@ Error: unknown command 'bar'
 
       it("generates correct error message with unexpected argument", function()
          assert.equal([[
-Usage: ./spec/script [-v] [-h] <input> [<command>] ...
+Usage: ]]..script..[[ [-v] [-h] <input> [<command>] ...
 
 Error: option '--verbose' does not take arguments
 ]], get_output("--verbose=true"))
@@ -33,7 +42,7 @@ Error: option '--verbose' does not take arguments
 
       it("generates correct error message with unexpected option", function()
          assert.equal([[
-Usage: ./spec/script [-v] [-h] <input> [<command>] ...
+Usage: ]]..script..[[ [-v] [-h] <input> [<command>] ...
 
 Error: unknown option '-q'
 Did you mean one of these: '-h' '-v'?
@@ -42,7 +51,7 @@ Did you mean one of these: '-h' '-v'?
 
       it("generates correct error message and tip with unexpected command", function()
          assert.equal([[
-Usage: ./spec/script [-v] [-h] <input> [<command>] ...
+Usage: ]]..script..[[ [-v] [-h] <input> [<command>] ...
 
 Error: unknown command 'nstall'
 Did you mean 'install'?
@@ -51,7 +60,7 @@ Did you mean 'install'?
 
       it("generates correct error message without arguments in command", function()
          assert.equal([[
-Usage: ./spec/script install [-f <from>] [-h] <rock> [<version>]
+Usage: ]]..script..[[ install [-f <from>] [-h] <rock> [<version>]
 
 Error: too few arguments
 ]], get_output("foo install"))
@@ -59,7 +68,7 @@ Error: too few arguments
 
       it("generates correct error message and tip in command", function()
          assert.equal([[
-Usage: ./spec/script install [-f <from>] [-h] <rock> [<version>]
+Usage: ]]..script..[[ install [-f <from>] [-h] <rock> [<version>]
 
 Error: unknown option '--form'
 Did you mean '--from'?
@@ -70,7 +79,7 @@ Did you mean '--from'?
    describe("help messages", function()
       it("generates correct help message", function()
          assert.equal([[
-Usage: ./spec/script [-v] [-h] <input> [<command>] ...
+Usage: ]]..script..[[ [-v] [-h] <input> [<command>] ...
 
 A testing program. 
 
@@ -88,7 +97,7 @@ Commands:
 
       it("generates correct help message for command", function()
          assert.equal([[
-Usage: ./spec/script install [-f <from>] [-h] <rock> [<version>]
+Usage: ]]..script..[[ install [-f <from>] [-h] <rock> [<version>]
 
 Install a rock. 
 
@@ -106,21 +115,21 @@ Options:
 
    describe("data flow", function()
       it("works with one argument", function()
-         local handler = io.popen("./spec/script foo 2>&1", "r")
+         local handler = io.popen(script_cmd .. " foo 2>&1", "r")
          assert.equal("foo", handler:read "*l")
          assert.equal("0", handler:read "*l")
          handler:close()
       end)
 
       it("works with one argument and a flag", function()
-         local handler = io.popen("./spec/script -v foo --verbose 2>&1", "r")
+         local handler = io.popen(script_cmd .. " -v foo --verbose 2>&1", "r")
          assert.equal("foo", handler:read "*l")
          assert.equal("2", handler:read "*l")
          handler:close()
       end)
 
       it("works with command", function()
-         local handler = io.popen("./spec/script foo -v install bar 2>&1", "r")
+         local handler = io.popen(script_cmd .. " foo -v install bar 2>&1", "r")
          assert.equal("foo", handler:read "*l")
          assert.equal("1", handler:read "*l")
          assert.equal("true", handler:read "*l")
@@ -131,7 +140,7 @@ Options:
       end)
 
       it("works with command and options", function()
-         local handler = io.popen("./spec/script foo --verbose install bar 0.1 --from=there -vv 2>&1", "r")
+         local handler = io.popen(script_cmd .. " foo --verbose install bar 0.1 --from=there -vv 2>&1", "r")
          assert.equal("foo", handler:read "*l")
          assert.equal("2", handler:read "*l")
          assert.equal("true", handler:read "*l")

spec/script.lua

@@ -26,8 +26,8 @@ install:option "-f" "--from"
    :description "Fetch the rock from this server. "
    :target "server"
 
-local usage = parser:get_usage()
-local help = parser:get_help()
+parser:get_usage()
+parser:get_help()
 local args = parser:parse()
 
 print(args.input)