Adds CLI tests

test/cli_test-parser.js

@@ -0,0 +1,100 @@
+var test = require('tape')
+  , cliPath = '../lib/cli'
+
+test('parses multiple files', function(t) {
+  t.plan(2)
+
+  var cli = require(cliPath)
+    , argv = ['example/file1.mermaid', 'file2.mermaid', 'file3.mermaid']
+    , expect = ['example/file1.mermaid', 'file2.mermaid', 'file3.mermaid']
+
+  cli.parse(argv, function(err, msg, opt) {
+    t.equal(opt.files.length, 3, 'should have 3 parameters')
+    t.deepEqual(opt.files, expect, 'should match expected values')
+
+    t.end()
+  })
+})
+
+test('defaults to png', function(t) {
+  t.plan(2)
+
+  var cli = require(cliPath)
+    , argv = ['example/file1.mermaid']
+
+  cli.parse(argv, function(err, msg, opt) {
+    t.ok(opt.png, 'png is set by default')
+    t.notOk(opt.svg, 'svg is not set by default')
+
+    t.end()
+  })
+})
+
+test('setting svg unsets png', function(t) {
+  t.plan(2)
+
+  var cli = require(cliPath)
+    , argv = ['example/file1.mermaid', '-s']
+
+  cli.parse(argv, function(err, msg, opt) {
+
+    t.ok(opt.svg, 'svg is set when requested')
+    t.notOk(opt.png, 'png is unset when svg is set')
+
+    t.end()
+  })
+})
+
+test('setting png and svg is allowed', function(t) {
+  t.plan(2)
+
+  var cli = require(cliPath)
+    , argv = ['example/file1.mermaid', '-s', '-p']
+
+  cli.parse(argv, function(err, msg, opt) {
+    t.ok(opt.png, 'png is set when requested')
+    t.ok(opt.svg, 'svg is set when requested')
+
+    t.end()
+  })
+})
+
+test('setting an output directory succeeds', function(t) {
+  t.plan(1)
+
+  var cli = require(cliPath)
+    , argv = ['-o', 'example/']
+
+  cli.parse(argv, function(err, msg, opt) {
+    t.equal(opt.outputDir, 'example/', 'output directory is set')
+    t.end()
+  })
+})
+
+test('setting an output directory incorrectly causes an error', function(t) {
+  t.plan(1)
+
+  var cli = require(cliPath)
+    , argv = ['-o']
+
+  cli.parse(argv, function(err) {
+    t.ok(err, 'an error is raised')
+
+    t.end()
+  })
+})
+
+test('a callback function is called after parsing', function(t) {
+  t.plan(2)
+
+  var cli = require(cliPath)
+    , argv = ['example/test.mermaid']
+    , expects = ['example/test.mermaid']
+
+  cli.parse(argv, function(err, msg, opts) {
+    t.ok(true, 'callback was called')
+    t.deepEqual(argv, opts.files, 'options are as expected')
+
+    t.end()
+  })
+})