Remove ES5 interface

libraries/o-error/test/o-error-util.test.js

@@ -0,0 +1,83 @@
+const { getFullInfo, getFullStack, hasCauseInstanceOf } = require('..')
+
+describe('OError.getFullInfo', () => {
+  it('works on a normal error', () => {
+    const err = new Error('foo')
+    expect(getFullInfo(err)).to.deep.equal({ })
+  })
+
+  it('works on an error with .info', () => {
+    const err = new Error('foo')
+    err.info = { userId: 123 }
+    expect(getFullInfo(err)).to.deep.equal({ userId: 123 })
+  })
+
+  it('merges info from a cause chain', () => {
+    const err1 = new Error('foo')
+    const err2 = new Error('bar')
+    err1.cause = err2
+    err2.info = { userId: 123 }
+    expect(getFullInfo(err1)).to.deep.equal({ userId: 123 })
+  })
+
+  it('merges info from a cause chain with no info', () => {
+    const err1 = new Error('foo')
+    const err2 = new Error('bar')
+    err1.cause = err2
+    expect(getFullInfo(err1)).to.deep.equal({})
+  })
+
+  it('merges info from a cause chain with duplicate keys', () => {
+    const err1 = new Error('foo')
+    const err2 = new Error('bar')
+    err1.cause = err2
+    err1.info = { userId: 123 }
+    err2.info = { userId: 456 }
+    expect(getFullInfo(err1)).to.deep.equal({ userId: 123 })
+  })
+
+  it('works on an error with .info set to a string', () => {
+    const err = new Error('foo')
+    err.info = 'test'
+    expect(getFullInfo(err)).to.deep.equal({})
+  })
+})
+
+describe('OError.getFullStack', () => {
+  it('works on a normal error', () => {
+    const err = new Error('foo')
+    const fullStack = getFullStack(err)
+    expect(fullStack).to.match(/^Error: foo$/m)
+    expect(fullStack).to.match(/^\s+at /m)
+  })
+
+  it('works on an error with a cause', () => {
+    const err1 = new Error('foo')
+    const err2 = new Error('bar')
+    err1.cause = err2
+
+    const fullStack = getFullStack(err1)
+    expect(fullStack).to.match(/^Error: foo$/m)
+    expect(fullStack).to.match(/^\s+at /m)
+    expect(fullStack).to.match(/^caused by: Error: bar$/m)
+  })
+})
+
+describe('OError.hasCauseInstanceOf', () => {
+  it('works on a normal error', () => {
+    const err = new Error('foo')
+    expect(hasCauseInstanceOf(null, Error)).to.be.false
+    expect(hasCauseInstanceOf(err, Error)).to.be.true
+    expect(hasCauseInstanceOf(err, RangeError)).to.be.false
+  })
+
+  it('works on an error with a cause', () => {
+    const err1 = new Error('foo')
+    const err2 = new RangeError('bar')
+    err1.cause = err2
+
+    expect(hasCauseInstanceOf(err1, Error)).to.be.true
+    expect(hasCauseInstanceOf(err1, RangeError)).to.be.true
+    expect(hasCauseInstanceOf(err1, TypeError)).to.be.false
+  })
+})