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const t = require('tap')
const requireInject = require('require-inject')
const npm = {
prefix: null,
color: true,
flatOptions: {},
}
const { resolve } = require('path')
const OUTPUT = []
const explain = requireInject('../../lib/explain.js', {
'../../lib/npm.js': npm,
'../../lib/utils/output.js': (...args) => {
OUTPUT.push(args)
},
// keep the snapshots pared down a bit, since this has its own tests.
'../../lib/utils/explain-dep.js': {
explainNode: (expl, depth, color) => {
return `${expl.name}@${expl.version} depth=${depth} color=${color}`
},
},
})
t.test('no args throws usage', async t => {
t.plan(1)
try {
await explain([], er => {
throw er
})
} catch (er) {
t.equal(er, explain.usage)
}
})
t.test('no match throws not found', async t => {
npm.prefix = t.testdir()
t.plan(1)
try {
await explain(['foo@1.2.3', 'node_modules/baz'], er => {
throw er
})
} catch (er) {
t.equal(er, 'No dependencies found matching foo@1.2.3, node_modules/baz')
}
})
t.test('invalid package name throws not found', async t => {
npm.prefix = t.testdir()
t.plan(1)
const badName = ' not a valid package name '
try {
await explain([`${badName}@1.2.3`], er => {
throw er
})
} catch (er) {
t.equal(er, `No dependencies found matching ${badName}@1.2.3`)
}
})
t.test('explain some nodes', async t => {
npm.prefix = t.testdir({
node_modules: {
foo: {
'package.json': JSON.stringify({
name: 'foo',
version: '1.2.3',
dependencies: {
bar: '*',
},
}),
},
bar: {
'package.json': JSON.stringify({
name: 'bar',
version: '1.2.3',
}),
},
baz: {
'package.json': JSON.stringify({
name: 'baz',
version: '1.2.3',
dependencies: {
foo: '*',
bar: '2',
},
}),
node_modules: {
bar: {
'package.json': JSON.stringify({
name: 'bar',
version: '2.3.4',
}),
},
extra: {
'package.json': JSON.stringify({
name: 'extra',
version: '99.9999.999999',
description: 'extraneous package',
}),
},
},
},
},
'package.json': JSON.stringify({
dependencies: {
baz: '1',
},
}),
})
// works with either a full actual path or the location
const p = 'node_modules/foo'
for (const path of [p, resolve(npm.prefix, p)]) {
await explain([path], er => {
if (er)
throw er
})
t.strictSame(OUTPUT, [['foo@1.2.3 depth=Infinity color=true']])
OUTPUT.length = 0
}
// finds all nodes by name
await explain(['bar'], er => {
if (er)
throw er
})
t.strictSame(OUTPUT, [[
'bar@1.2.3 depth=Infinity color=true\n\n' +
'bar@2.3.4 depth=Infinity color=true',
]])
OUTPUT.length = 0
// finds only nodes that match the spec
await explain(['bar@1'], er => {
if (er)
throw er
})
t.strictSame(OUTPUT, [['bar@1.2.3 depth=Infinity color=true']])
OUTPUT.length = 0
// finds extraneous nodes
await explain(['extra'], er => {
if (er)
throw er
})
t.strictSame(OUTPUT, [['extra@99.9999.999999 depth=Infinity color=true']])
OUTPUT.length = 0
npm.flatOptions.json = true
await explain(['node_modules/foo'], er => {
if (er)
throw er
})
t.match(JSON.parse(OUTPUT[0][0]), [{
name: 'foo',
version: '1.2.3',
dependents: Array,
}])
OUTPUT.length = 0
npm.flatOptions.json = false
t.test('report if no nodes found', async t => {
t.plan(1)
await explain(['asdf/foo/bar', 'quux@1.x'], er => {
t.equal(er, 'No dependencies found matching asdf/foo/bar, quux@1.x')
})
})
})
|
