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ui_test.go
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253 lines (210 loc) · 6.04 KB
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package ui_test
import (
"bytes"
"io"
boshlog "github.com/cloudfoundry/bosh-utils/logger"
. "github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
. "github.com/cloudfoundry/bosh-cli/v7/ui"
. "github.com/cloudfoundry/bosh-cli/v7/ui/table"
)
var _ = Describe("UI", func() {
var (
logOutBuffer *bytes.Buffer
uiOutBuffer, uiErrBuffer *bytes.Buffer
uiOut, uiErr io.Writer
logger boshlog.Logger
ui UI
)
BeforeEach(func() {
uiOutBuffer = bytes.NewBufferString("")
uiOut = uiOutBuffer
uiErrBuffer = bytes.NewBufferString("")
uiErr = uiErrBuffer
logOutBuffer = bytes.NewBufferString("")
logger = boshlog.NewWriterLogger(boshlog.LevelDebug, logOutBuffer)
})
JustBeforeEach(func() {
ui = NewWriterUI(uiOut, uiErr, logger)
})
Describe("ErrorLinef", func() {
It("prints to errWriter with a trailing newline", func() {
ui.ErrorLinef("fake-error-line")
Expect(uiOutBuffer.String()).To(Equal(""))
Expect(uiErrBuffer.String()).To(ContainSubstring("fake-error-line\n"))
})
Context("when writing fails", func() {
BeforeEach(func() {
reader, writer := io.Pipe()
uiErr = writer
reader.Close() //nolint:errcheck
})
It("logs an error", func() {
ui.ErrorLinef("fake-error-line")
Expect(uiOutBuffer.String()).To(Equal(""))
Expect(uiErrBuffer.String()).To(Equal(""))
Expect(logOutBuffer.String()).To(ContainSubstring("UI.ErrorLinef failed (message='fake-error-line')"))
})
})
})
Describe("PrintLinef", func() {
It("prints to outWriter with a trailing newline", func() {
ui.PrintLinef("fake-line")
Expect(uiOutBuffer.String()).To(ContainSubstring("fake-line\n"))
})
Context("when writing fails", func() {
BeforeEach(func() {
reader, writer := io.Pipe()
uiOut = writer
reader.Close() //nolint:errcheck
})
It("logs an error", func() {
ui.PrintLinef("fake-start")
Expect(uiOutBuffer.String()).To(Equal(""))
Expect(uiErrBuffer.String()).To(Equal(""))
Expect(logOutBuffer.String()).To(ContainSubstring("UI.PrintLinef failed (message='fake-start')"))
})
})
})
Describe("BeginLinef", func() {
It("prints to outWriter", func() {
ui.BeginLinef("fake-start")
Expect(uiOutBuffer.String()).To(ContainSubstring("fake-start"))
})
Context("when writing fails", func() {
BeforeEach(func() {
reader, writer := io.Pipe()
uiOut = writer
reader.Close() //nolint:errcheck
})
It("logs an error", func() {
ui.BeginLinef("fake-start")
Expect(uiOutBuffer.String()).To(Equal(""))
Expect(uiErrBuffer.String()).To(Equal(""))
Expect(logOutBuffer.String()).To(ContainSubstring("UI.BeginLinef failed (message='fake-start')"))
})
})
})
Describe("EndLinef", func() {
It("prints to outWriter with a trailing newline", func() {
ui.EndLinef("fake-end")
Expect(uiOutBuffer.String()).To(ContainSubstring("fake-end\n"))
})
Context("when writing fails", func() {
BeforeEach(func() {
reader, writer := io.Pipe()
uiOut = writer
reader.Close() //nolint:errcheck
})
It("logs an error", func() {
ui.EndLinef("fake-start")
Expect(uiOutBuffer.String()).To(Equal(""))
Expect(uiErrBuffer.String()).To(Equal(""))
Expect(logOutBuffer.String()).To(ContainSubstring("UI.EndLinef failed (message='fake-start')"))
})
})
})
Describe("PrintBlock", func() {
It("prints to outWriter as is", func() {
ui.PrintBlock([]byte("block"))
Expect(uiOutBuffer.String()).To(Equal("block"))
Expect(uiErrBuffer.String()).To(Equal(""))
})
Context("when writing fails", func() {
BeforeEach(func() {
reader, writer := io.Pipe()
uiOut = writer
reader.Close() //nolint:errcheck
})
It("logs an error", func() {
ui.PrintBlock([]byte("block"))
Expect(uiOutBuffer.String()).To(Equal(""))
Expect(uiErrBuffer.String()).To(Equal(""))
Expect(logOutBuffer.String()).To(ContainSubstring("UI.PrintBlock failed (message='block')"))
})
})
})
Describe("PrintErrorBlock", func() {
It("prints to outWriter as is", func() {
ui.PrintErrorBlock("block")
Expect(uiOutBuffer.String()).To(Equal("block"))
Expect(uiErrBuffer.String()).To(Equal(""))
})
Context("when writing fails", func() {
BeforeEach(func() {
reader, writer := io.Pipe()
uiOut = writer
reader.Close() //nolint:errcheck
})
It("logs an error", func() {
ui.PrintErrorBlock("block")
Expect(uiOutBuffer.String()).To(Equal(""))
Expect(uiErrBuffer.String()).To(Equal(""))
Expect(logOutBuffer.String()).To(ContainSubstring("UI.PrintErrorBlock failed (message='block')"))
})
})
})
Describe("PrintTable", func() {
It("prints table", func() {
table := Table{
Title: "Title",
Content: "things",
Header: []Header{NewHeader("Header1"), NewHeader("Header2")},
Rows: [][]Value{
{ValueString{S: "r1c1"}, ValueString{S: "r1c2"}},
{ValueString{S: "r2c1"}, ValueString{S: "r2c2"}},
},
Notes: []string{"note1", "note2"},
BackgroundStr: ".",
BorderStr: "|",
}
ui.PrintTable(table)
Expect("\n" + uiOutBuffer.String()).To(Equal(`
Title
Header1|Header2|
r1c1...|r1c2|
r2c1...|r2c2|
note1
note2
2 things
`))
})
})
Describe("PrintTableFiltered", func() {
It("prints table", func() {
table := Table{
Title: "Title",
Content: "things",
Header: []Header{NewHeader("Header1"), NewHeader("Header2")},
Rows: [][]Value{
{ValueString{S: "r1c1"}, ValueString{S: "r1c2"}},
{ValueString{S: "r2c1"}, ValueString{S: "r2c2"}},
},
Notes: []string{"note1", "note2"},
BackgroundStr: ".",
BorderStr: "|",
}
filteredHeader := []Header{}
ui.PrintTableFiltered(table, filteredHeader)
Expect("\n" + uiOutBuffer.String()).To(Equal(`
Title
Header1|Header2|
r1c1...|r1c2|
r2c1...|r2c2|
note1
note2
2 things
`))
})
})
Describe("IsInteractive", func() {
It("returns true", func() {
Expect(ui.IsInteractive()).To(BeTrue())
})
})
Describe("Flush", func() {
It("does nothing", func() {
Expect(func() { ui.Flush() }).ToNot(Panic())
})
})
})