func (factory *AppExaminerCommandFactory) printDistribution() int {
defer factory.ui.Say(cursor.ClearToEndOfDisplay())
cells, err := factory.appExaminer.ListCells()
if err != nil {
factory.ui.Say("Error visualizing: " + err.Error())
factory.ui.Say(cursor.ClearToEndOfLine())
factory.ui.SayNewLine()
return 1
}
for _, cell := range cells {
factory.ui.Say(cell.CellID)
if cell.Missing {
factory.ui.Say(colors.Red("[MISSING]"))
}
factory.ui.Say(": ")
if cell.RunningInstances == 0 && cell.ClaimedInstances == 0 && !cell.Missing {
factory.ui.Say(colors.Red("empty"))
} else {
factory.ui.Say(colors.Green(strings.Repeat("•", cell.RunningInstances)))
factory.ui.Say(colors.Yellow(strings.Repeat("•", cell.ClaimedInstances)))
}
factory.ui.Say(cursor.ClearToEndOfLine())
factory.ui.SayNewLine()
}
return len(cells)
}
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/cloudfoundry-incubator/ltc/terminal/cursor"
)
var _ = Describe("cursor", func() {
Describe("Up", func() {
It("moves the cursor up N lines", func() {
Expect(cursor.Up(5)).To(Equal("\033[5A"))
})
})
Describe("ClearToEndOfLine", func() {
It("clears the line after the cursor", func() {
Expect(cursor.ClearToEndOfLine()).To(Equal("\033[0K"))
})
})
Describe("ClearToEndOfDisplay", func() {
It("clears everything below the cursor", func() {
Expect(cursor.ClearToEndOfDisplay()).To(Equal("\033[0J"))
})
})
Describe("Show", func() {
It("shows the cursor", func() {
Expect(cursor.Show()).To(Equal("\033[?25h"))
})
})
commandFactory := command_factory.NewAppExaminerCommandFactory(fakeAppExaminer, terminalUI, fakeTerm, fakeClock, fakeExitHandler, fakeGraphicalVisualizer, fakeTaskExaminer, systemDomain)
visualizeCommand = commandFactory.MakeVisualizeCommand()
})
It("displays a visualization of cells", func() {
listCells := []app_examiner.CellInfo{
{CellID: "cell-1", RunningInstances: 3, ClaimedInstances: 2},
{CellID: "cell-2", RunningInstances: 2, ClaimedInstances: 1},
{CellID: "cell-3", RunningInstances: 0, ClaimedInstances: 0},
}
fakeAppExaminer.ListCellsReturns(listCells, nil)
test_helpers.ExecuteCommandWithArgs(visualizeCommand, []string{})
Expect(outputBuffer).To(test_helpers.SayLine(colors.Bold("Distribution")))
Expect(outputBuffer).To(test_helpers.SayLine("cell-1: " + colors.Green("•••") + colors.Yellow("••") + cursor.ClearToEndOfLine()))
Expect(outputBuffer).To(test_helpers.SayLine("cell-2: " + colors.Green("••") + colors.Yellow("•") + cursor.ClearToEndOfLine()))
Expect(outputBuffer).To(test_helpers.SayLine("cell-3: " + colors.Red("empty") + cursor.ClearToEndOfLine()))
})
Context("when the app examiner returns an error", func() {
It("alerts the user fetching the cells returns an error", func() {
fakeAppExaminer.ListCellsReturns(nil, errors.New("The list was lost"))
test_helpers.ExecuteCommandWithArgs(visualizeCommand, []string{})
Expect(outputBuffer).To(test_helpers.Say("Error visualizing: The list was lost"))
Expect(outputBuffer).To(test_helpers.Say(cursor.ClearToEndOfLine()))
Expect(outputBuffer).To(test_helpers.SayNewLine())
// TODO: this should return non-zero, but it's shared with refresh view