package cliui_test

import (

"fmt"

"log"

"strings"

"testing"

"time"

"github.com/stretchr/testify/assert"

"github.com/stretchr/testify/require"

"github.com/coder/coder/cli/cliui"

)

type stringWrapper struct {

str string

}

var _ fmt.Stringer = stringWrapper{}

func (s stringWrapper) String() string {

return s.str

}

type tableTest1 struct {

Name string `table:"name,default_sort"`

NotIncluded string // no table tag

Age int `table:"age"`

Roles []string `table:"roles"`

Sub1 tableTest2 `table:"sub_1,recursive"`

Sub2 *tableTest2 `table:"sub_2,recursive"`

Sub3 tableTest3 `table:"sub 3,recursive"`

Sub4 tableTest2 `table:"sub 4"` // not recursive

// Types with special formatting.

Time time.Time `table:"time"`

TimePtr *time.Time `table:"time_ptr"`

}

type tableTest2 struct {

Name stringWrapper `table:"name,default_sort"`

Age int `table:"age"`

NotIncluded string `table:"-"`

}

type tableTest3 struct {

NotIncluded string // no table tag

Sub tableTest2 `table:"inner,recursive,default_sort"`

}

func Test_DisplayTable(t *testing.T) {

t.Parallel()

someTime := time.Date(2022, 8, 2, 15, 49, 10, 0, time.UTC)

// Not sorted by name or age to test sorting.

in := []tableTest1{

{

Name: "bar",

Age: 20,

Roles: []string{"a"},

Sub1: tableTest2{

Name: stringWrapper{str: "bar1"},

Age: 21,

},

Sub2: nil,

Sub3: tableTest3{

Sub: tableTest2{

Name: stringWrapper{str: "bar3"},

Age: 23,

},

},

Sub4: tableTest2{

Name: stringWrapper{str: "bar4"},

Age: 24,

},

Time: someTime,

TimePtr: nil,

},

{

Name: "foo",

Age: 10,

Roles: []string{"a", "b", "c"},

Sub1: tableTest2{

Name: stringWrapper{str: "foo1"},

Age: 11,

},

Sub2: &tableTest2{

Name: stringWrapper{str: "foo2"},

Age: 12,

},

Sub3: tableTest3{

Sub: tableTest2{

Name: stringWrapper{str: "foo3"},

Age: 13,

},

},

Sub4: tableTest2{

Name: stringWrapper{str: "foo4"},

Age: 14,

},

Time: someTime,

TimePtr: &someTime,

},

{

Name: "baz",

Age: 30,

Roles: nil,

Sub1: tableTest2{

Name: stringWrapper{str: "baz1"},

Age: 31,

},

Sub2: nil,

Sub3: tableTest3{

Sub: tableTest2{

Name: stringWrapper{str: "baz3"},

Age: 33,

},

},

Sub4: tableTest2{

Name: stringWrapper{str: "baz4"},

Age: 34,

},

Time: someTime,

TimePtr: nil,

},

}

// This test tests skipping fields without table tags, recursion, pointer

// dereferencing, and nil pointer skipping.

t.Run("OK", func(t *testing.T) {

t.Parallel()

expected := `

NAME AGE ROLES SUB 1 NAME SUB 1 AGE SUB 2 NAME SUB 2 AGE SUB 3 INNER NAME SUB 3 INNER AGE SUB 4 TIME TIME PTR

bar 20 [a] bar1 21 <nil> <nil> bar3 23 {bar4 24 } 2022-08-02T15:49:10Z <nil>

baz 30 [] baz1 31 <nil> <nil> baz3 33 {baz4 34 } 2022-08-02T15:49:10Z <nil>

foo 10 [a b c] foo1 11 foo2 12 foo3 13 {foo4 14 } 2022-08-02T15:49:10Z 2022-08-02T15:49:10Z

`

// Test with non-pointer values.

out, err := cliui.DisplayTable(in, "", nil)

log.Println("rendered table:\n" + out)

require.NoError(t, err)

compareTables(t, expected, out)

// Test with pointer values.

inPtr := make([]*tableTest1, len(in))

for i, v := range in {

v := v

inPtr[i] = &v

}

out, err = cliui.DisplayTable(inPtr, "", nil)

require.NoError(t, err)

compareTables(t, expected, out)

})

t.Run("CustomSort", func(t *testing.T) {

t.Parallel()

expected := `

NAME AGE ROLES SUB 1 NAME SUB 1 AGE SUB 2 NAME SUB 2 AGE SUB 3 INNER NAME SUB 3 INNER AGE SUB 4 TIME TIME PTR

foo 10 [a b c] foo1 11 foo2 12 foo3 13 {foo4 14 } 2022-08-02T15:49:10Z 2022-08-02T15:49:10Z

bar 20 [a] bar1 21 <nil> <nil> bar3 23 {bar4 24 } 2022-08-02T15:49:10Z <nil>

baz 30 [] baz1 31 <nil> <nil> baz3 33 {baz4 34 } 2022-08-02T15:49:10Z <nil>

`

out, err := cliui.DisplayTable(in, "age", nil)

log.Println("rendered table:\n" + out)

require.NoError(t, err)

compareTables(t, expected, out)

})

t.Run("Filter", func(t *testing.T) {

t.Parallel()

expected := `

NAME SUB 1 NAME SUB 3 INNER NAME TIME

bar bar1 bar3 2022-08-02T15:49:10Z

baz baz1 baz3 2022-08-02T15:49:10Z

foo foo1 foo3 2022-08-02T15:49:10Z

`

out, err := cliui.DisplayTable(in, "", []string{"name", "sub_1_name", "sub_3 inner name", "time"})

log.Println("rendered table:\n" + out)

require.NoError(t, err)

compareTables(t, expected, out)

})

// This test ensures that safeties against invalid use of `table` tags

// causes errors (even without data).

t.Run("Errors", func(t *testing.T) {

t.Parallel()

t.Run("NotSlice", func(t *testing.T) {

t.Parallel()

var in string

_, err := cliui.DisplayTable(in, "", nil)

require.Error(t, err)

})

t.Run("BadSortColumn", func(t *testing.T) {

t.Parallel()

_, err := cliui.DisplayTable(in, "bad_column_does_not_exist", nil)

require.Error(t, err)

})

t.Run("BadFilterColumns", func(t *testing.T) {

t.Parallel()

_, err := cliui.DisplayTable(in, "", []string{"name", "bad_column_does_not_exist"})

require.Error(t, err)

})

t.Run("Interfaces", func(t *testing.T) {

t.Parallel()

t.Run("WithoutData", func(t *testing.T) {

t.Parallel()

var in []any

_, err := cliui.DisplayTable(in, "", nil)

require.Error(t, err)

})

t.Run("WithData", func(t *testing.T) {

t.Parallel()

in := []any{tableTest1{}}

_, err := cliui.DisplayTable(in, "", nil)

require.Error(t, err)

})

})

t.Run("NotStruct", func(t *testing.T) {

t.Parallel()

t.Run("WithoutData", func(t *testing.T) {

t.Parallel()

var in []string

_, err := cliui.DisplayTable(in, "", nil)

require.Error(t, err)

})

t.Run("WithData", func(t *testing.T) {

t.Parallel()

in := []string{"foo", "bar", "baz"}

_, err := cliui.DisplayTable(in, "", nil)

require.Error(t, err)

})

})

t.Run("NoTableTags", func(t *testing.T) {

t.Parallel()

type noTableTagsTest struct {

Field string `json:"field"`

}

t.Run("WithoutData", func(t *testing.T) {

t.Parallel()

var in []noTableTagsTest

_, err := cliui.DisplayTable(in, "", nil)

require.Error(t, err)

})

t.Run("WithData", func(t *testing.T) {

t.Parallel()

in := []noTableTagsTest{{Field: "hi"}}

_, err := cliui.DisplayTable(in, "", nil)

require.Error(t, err)

})

})

t.Run("InvalidTag/NoName", func(t *testing.T) {

t.Parallel()

type noNameTest struct {

Field string `table:""`

}

t.Run("WithoutData", func(t *testing.T) {

t.Parallel()

var in []noNameTest

_, err := cliui.DisplayTable(in, "", nil)

require.Error(t, err)

})

t.Run("WithData", func(t *testing.T) {

t.Parallel()

in := []noNameTest{{Field: "test"}}

_, err := cliui.DisplayTable(in, "", nil)

require.Error(t, err)

})

})

t.Run("InvalidTag/BadSyntax", func(t *testing.T) {

t.Parallel()

type invalidSyntaxTest struct {

Field string `table:"asda,asdjada"`

}

t.Run("WithoutData", func(t *testing.T) {

t.Parallel()

var in []invalidSyntaxTest

_, err := cliui.DisplayTable(in, "", nil)

require.Error(t, err)

})

t.Run("WithData", func(t *testing.T) {

t.Parallel()

in := []invalidSyntaxTest{{Field: "test"}}

_, err := cliui.DisplayTable(in, "", nil)

require.Error(t, err)

})

})

})

}

// compareTables normalizes the incoming table lines

func compareTables(t *testing.T, expected, out string) {

t.Helper()

expectedLines := strings.Split(strings.TrimSpace(expected), "\n")

gotLines := strings.Split(strings.TrimSpace(out), "\n")

assert.Equal(t, len(expectedLines), len(gotLines), "expected line count does not match generated line count")

// Map the expected and got lines to normalize them.

expectedNormalized := make([]string, len(expectedLines))

gotNormalized := make([]string, len(gotLines))

normalizeLine := func(s string) string {

return strings.Join(strings.Fields(strings.TrimSpace(s)), " ")

}

for i, s := range expectedLines {

expectedNormalized[i] = normalizeLine(s)

}

for i, s := range gotLines {

gotNormalized[i] = normalizeLine(s)

}

require.Equal(t, expectedNormalized, gotNormalized, "expected lines to match generated lines")

}