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node_modules/command-line-args/test/exceptions-already-set.js

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+'use strict'
+const TestRunner = require('test-runner')
+const commandLineArgs = require('../')
+const a = require('assert')
+
+const runner = new TestRunner()
+
+runner.test('exceptions-already-set: long option', function () {
+  const optionDefinitions = [
+    { name: 'one', type: Boolean }
+  ]
+  const argv = [ '--one', '--one' ]
+  a.throws(
+    () => commandLineArgs(optionDefinitions, { argv }),
+    err => err.name === 'ALREADY_SET' && err.optionName === 'one'
+  )
+})
+
+runner.test('exceptions-already-set: short option', function () {
+  const optionDefinitions = [
+    { name: 'one', type: Boolean, alias: 'o' }
+  ]
+  const argv = [ '--one', '-o' ]
+  a.throws(
+    () => commandLineArgs(optionDefinitions, { argv }),
+    err => err.name === 'ALREADY_SET' && err.optionName === 'one'
+  )
+})
+
+runner.test('exceptions-already-set: --option=value', function () {
+  const optionDefinitions = [
+    { name: 'one' }
+  ]
+  const argv = [ '--one=1', '--one=1' ]
+  a.throws(
+    () => commandLineArgs(optionDefinitions, { argv }),
+    err => err.name === 'ALREADY_SET' && err.optionName === 'one'
+  )
+})
+
+runner.test('exceptions-already-set: combined short option', function () {
+  const optionDefinitions = [
+    { name: 'one', type: Boolean, alias: 'o' }
+  ]
+  const argv = [ '-oo' ]
+  a.throws(
+    () => commandLineArgs(optionDefinitions, { argv }),
+    err => err.name === 'ALREADY_SET' && err.optionName === 'one'
+  )
+})