Slack import unit tests (#4201)

* Slack Import unit tests (for some functions).

Covers the completely self contained functions in the Slack Importer
that are straightforward to unit test.

JSON processing functions are not yet unit tested.

* Unit tests for Slack Import JSON parsing.

This tests the 3 functions for parsing JSON, using a sample set of
Slack data for posts, channels, and users.

5 files changed, 899 insertions, 12 deletions

diff --git a/api/slackimport.go b/api/slackimport.go
index bf18992f6..b9dab98ba 100644
--- a/api/slackimport.go
+++ b/api/slackimport.go
@@ -75,18 +75,18 @@ func SlackConvertChannelName(channelName string) string {
 	return newName
 }
 
-func SlackParseChannels(data io.Reader) []SlackChannel {
+func SlackParseChannels(data io.Reader) ([]SlackChannel, error) {
 	decoder := json.NewDecoder(data)
 
 	var channels []SlackChannel
 	if err := decoder.Decode(&channels); err != nil {
 		l4g.Warn(utils.T("api.slackimport.slack_parse_channels.error"))
-		return channels
+		return channels, err
 	}
-	return channels
+	return channels, nil
 }
 
-func SlackParseUsers(data io.Reader) []SlackUser {
+func SlackParseUsers(data io.Reader) ([]SlackUser, error) {
 	decoder := json.NewDecoder(data)
 
 	var users []SlackUser
@@ -94,20 +94,20 @@ func SlackParseUsers(data io.Reader) []SlackUser {
 		// This actually returns errors that are ignored.
 		// In this case it is erroring because of a null that Slack
 		// introduced. So we just return the users here.
-		return users
+		return users, err
 	}
-	return users
+	return users, nil
 }
 
-func SlackParsePosts(data io.Reader) []SlackPost {
+func SlackParsePosts(data io.Reader) ([]SlackPost, error) {
 	decoder := json.NewDecoder(data)
 
 	var posts []SlackPost
 	if err := decoder.Decode(&posts); err != nil {
 		l4g.Warn(utils.T("api.slackimport.slack_parse_posts.error"))
-		return posts
+		return posts, err
 	}
-	return posts
+	return posts, nil
 }
 
 func SlackAddUsers(teamId string, slackusers []SlackUser, log *bytes.Buffer) map[string]*model.User {
@@ -401,13 +401,13 @@ func SlackImport(fileData multipart.File, fileSize int64, teamID string) (*model
 			return model.NewLocAppError("SlackImport", "api.slackimport.slack_import.open.app_error", map[string]interface{}{"Filename": file.Name}, err.Error()), log
 		}
 		if file.Name == "channels.json" {
-			channels = SlackParseChannels(reader)
+			channels, _ = SlackParseChannels(reader)
 		} else if file.Name == "users.json" {
-			users = SlackParseUsers(reader)
+			users, _ = SlackParseUsers(reader)
 		} else {
 			spl := strings.Split(file.Name, "/")
 			if len(spl) == 2 && strings.HasSuffix(spl[1], ".json") {
-				newposts := SlackParsePosts(reader)
+				newposts, _ := SlackParsePosts(reader)
 				channel := spl[0]
 				if _, ok := posts[channel]; ok == false {
 					posts[channel] = newposts
diff --git a/api/slackimport_test.go b/api/slackimport_test.go
new file mode 100644
index 000000000..4da1fa54e
--- /dev/null
+++ b/api/slackimport_test.go
@@ -0,0 +1,179 @@
+// Copyright (c) 2016 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package api
+
+import (
+	"os"
+	"testing"
+)
+
+func TestSlackConvertTimeStamp(t *testing.T) {
+
+	testTimeStamp := "1469785419.000033"
+
+	result := SlackConvertTimeStamp(testTimeStamp)
+
+	if result != 1469785419000 {
+		t.Fatalf("Unexpected timestamp value %v returned.", result)
+	}
+}
+
+func TestSlackConvertChannelName(t *testing.T) {
+	var testData = []struct {
+		input  string
+		output string
+	}{
+		{"test-channel", "test-channel"},
+		{"_test_channel_", "test_channel"},
+		{"__test", "test"},
+		{"-t", "slack-channel-t"},
+		{"a", "slack-channel-a"},
+	}
+
+	for _, td := range testData {
+		if td.output != SlackConvertChannelName(td.input) {
+			t.Fatalf("Did not convert channel name correctly: %v", td.input)
+		}
+	}
+}
+
+func TestSlackConvertUserMentions(t *testing.T) {
+	users := []SlackUser{
+		{Id: "U00000A0A", Username: "firstuser"},
+		{Id: "U00000B1B", Username: "seconduser"},
+	}
+
+	posts := map[string][]SlackPost{
+		"test-channel": {
+			{
+				Text: "<!channel>: Hi guys.",
+			},
+			{
+				Text: "Calling <!here|@here>.",
+			},
+			{
+				Text: "Yo <!everyone>.",
+			},
+			{
+				Text: "Regular user test <@U00000B1B|seconduser> and <@U00000A0A>.",
+			},
+		},
+	}
+
+	expectedPosts := map[string][]SlackPost{
+		"test-channel": {
+			{
+				Text: "@channel: Hi guys.",
+			},
+			{
+				Text: "Calling @here.",
+			},
+			{
+				Text: "Yo @all.",
+			},
+			{
+				Text: "Regular user test @seconduser and @firstuser.",
+			},
+		},
+	}
+
+	convertedPosts := SlackConvertUserMentions(users, posts)
+
+	for channelName, channelPosts := range convertedPosts {
+		for postIdx, post := range channelPosts {
+			if post.Text != expectedPosts[channelName][postIdx].Text {
+				t.Fatalf("Converted post text not as expected: %v", post.Text)
+			}
+		}
+	}
+}
+
+func TestSlackConvertChannelMentions(t *testing.T) {
+	channels := []SlackChannel{
+		{Id: "C000AA00A", Name: "one"},
+		{Id: "C000BB11B", Name: "two"},
+	}
+
+	posts := map[string][]SlackPost{
+		"test-channel": {
+			{
+				Text: "Go to <#C000AA00A>.",
+			},
+			{
+				User: "U00000A0A",
+				Text: "Try <#C000BB11B|two> for this.",
+			},
+		},
+	}
+
+	expectedPosts := map[string][]SlackPost{
+		"test-channel": {
+			{
+				Text: "Go to !one.",
+			},
+			{
+				Text: "Try !two for this.",
+			},
+		},
+	}
+
+	convertedPosts := SlackConvertChannelMentions(channels, posts)
+
+	for channelName, channelPosts := range convertedPosts {
+		for postIdx, post := range channelPosts {
+			if post.Text != expectedPosts[channelName][postIdx].Text {
+				t.Fatalf("Converted post text not as expected: %v", post.Text)
+			}
+		}
+	}
+
+}
+
+func TestSlackParseChannels(t *testing.T) {
+	file, err := os.Open("../tests/slack-import-test-channels.json")
+	if err != nil {
+		t.Fatalf("Failed to open data file: %v", err)
+	}
+
+	channels, err := SlackParseChannels(file)
+	if err != nil {
+		t.Fatalf("Error occurred parsing channels: %v", err)
+	}
+
+	if len(channels) != 6 {
+		t.Fatalf("Unexpected number of channels: %v", len(channels))
+	}
+}
+
+func TestSlackParseUsers(t *testing.T) {
+	file, err := os.Open("../tests/slack-import-test-users.json")
+	if err != nil {
+		t.Fatalf("Failed to open data file: %v", err)
+	}
+
+	users, err := SlackParseUsers(file)
+	if err != nil {
+		t.Fatalf("Error occurred parsing users: %v", err)
+	}
+
+	if len(users) != 11 {
+		t.Fatalf("Unexpected number of users: %v", len(users))
+	}
+}
+
+func TestSlackParsePosts(t *testing.T) {
+	file, err := os.Open("../tests/slack-import-test-posts.json")
+	if err != nil {
+		t.Fatalf("Failed to open data file: %v", err)
+	}
+
+	posts, err := SlackParsePosts(file)
+	if err != nil {
+		t.Fatalf("Error occurred parsing posts: %v", err)
+	}
+
+	if len(posts) != 8 {
+		t.Fatalf("Unexpected number of posts: %v", len(posts))
+	}
+}
diff --git a/tests/slack-import-test-channels.json b/tests/slack-import-test-channels.json
new file mode 100644
index 000000000..c8a2b5ec3
--- /dev/null
+++ b/tests/slack-import-test-channels.json
@@ -0,0 +1,165 @@
+[
+    {
+        "id": "C13CFUSDV",
+        "name": "artwork",
+        "created": "1461575251",
+        "creator": "U07Q4MHCP",
+        "is_archived": false,
+        "is_general": false,
+        "members": [
+            "U07Q4MHCP",
+            "U13C5JZ7W",
+            "U13CLGTKK",
+            "U13CSKE2E"
+        ],
+        "topic": {
+            "value": "",
+            "creator": "",
+            "last_set": "0"
+        },
+        "purpose": {
+            "value": "Discussing art",
+            "creator": "U07Q4MHCP",
+            "last_set": "1461575252"
+        }
+    },
+    {
+        "id": "C13CN0Q0H",
+        "name": "eating-out",
+        "created": "1461575308",
+        "creator": "U07Q4MHCP",
+        "is_archived": false,
+        "is_general": false,
+        "members": [
+            "U07Q4MHCP",
+            "U13C5JZ7W",
+            "U13CLGTKK",
+            "U13CSKE2E"
+        ],
+        "topic": {
+            "value": "",
+            "creator": "",
+            "last_set": "0"
+        },
+        "purpose": {
+            "value": "Restaurants around town",
+            "creator": "U07Q4MHCP",
+            "last_set": "1461575309"
+        }
+    },
+    {
+        "id": "C07Q4SBL3",
+        "name": "general",
+        "created": "1437124885",
+        "creator": "U07Q4MHCP",
+        "is_archived": false,
+        "is_general": true,
+        "members": [
+            "U07Q4MHCP",
+            "U13C5JZ7W",
+            "U13CLGTKK",
+            "U13CSKE2E",
+            "U15F73RL4",
+            "U15F922BY",
+            "U15FHKEKX",
+            "U15FHR92R",
+            "U15FUR1QS",
+            "U1THQPEMV",
+            "U24CG47QU"
+        ],
+        "topic": {
+            "value": "Company-wide announcements and work-based matters",
+            "creator": "",
+            "last_set": "0"
+        },
+        "purpose": {
+            "value": "This channel is for team-wide communication and announcements. All team members are in this channel.",
+            "creator": "",
+            "last_set": "0"
+        }
+    },
+    {
+        "id": "C13B104PM",
+        "name": "movies",
+        "created": "1461575333",
+        "creator": "U07Q4MHCP",
+        "is_archived": false,
+        "is_general": false,
+        "members": [
+            "U07Q4MHCP",
+            "U13C5JZ7W",
+            "U13CLGTKK",
+            "U13CSKE2E"
+        ],
+        "topic": {
+            "value": "",
+            "creator": "",
+            "last_set": "0"
+        },
+        "purpose": {
+            "value": "New movies",
+            "creator": "U07Q4MHCP",
+            "last_set": "1461575334"
+        }
+    },
+    {
+        "id": "C15FGPREU",
+        "name": "outings",
+        "created": "1462216386",
+        "creator": "U15FUR1QS",
+        "is_archived": false,
+        "is_general": false,
+        "members": [
+            "U07Q4MHCP",
+            "U13C5JZ7W",
+            "U13CLGTKK",
+            "U13CSKE2E",
+            "U15F73RL4",
+            "U15F922BY",
+            "U15FHKEKX",
+            "U15FHR92R",
+            "U15FUR1QS"
+        ],
+        "topic": {
+            "value": "",
+            "creator": "",
+            "last_set": "0"
+        },
+        "purpose": {
+            "value": "Let's discuss our next monthly outing",
+            "creator": "U15FUR1QS",
+            "last_set": "1462216387"
+        }
+    },
+    {
+        "id": "C07Q4MBTL",
+        "name": "random",
+        "created": "1437124885",
+        "creator": "U07Q4MHCP",
+        "is_archived": false,
+        "is_general": false,
+        "members": [
+            "U07Q4MHCP",
+            "U13C5JZ7W",
+            "U13CLGTKK",
+            "U13CSKE2E",
+            "U15F73RL4",
+            "U15F922BY",
+            "U15FHKEKX",
+            "U15FHR92R",
+            "U15FUR1QS",
+            "U1THQPEMV",
+            "U24CG47QU"
+        ],
+        "topic": {
+            "value": "Non-work banter and water cooler conversation",
+            "creator": "",
+            "last_set": "0"
+        },
+        "purpose": {
+            "value": "A place for non-work-related flimflam, faffing, hodge-podge or jibber-jabber you'd prefer to keep out of more focused work-related channels.",
+            "creator": "",
+            "last_set": "0"
+        }
+    }
+]
\ No newline at end of file
diff --git a/tests/slack-import-test-posts.json b/tests/slack-import-test-posts.json
new file mode 100644
index 000000000..ca0d0a78c
--- /dev/null
+++ b/tests/slack-import-test-posts.json
@@ -0,0 +1,180 @@
+[
+    {
+        "type": "message",
+        "user": "U07Q4MHCP",
+        "text": "<@U24CG47QU>",
+        "ts": "1472932439.000002"
+    },
+    {
+        "user": "U07Q4MHCP",
+        "text": "<@U07Q4MHCP|lindy> has left the channel",
+        "type": "message",
+        "subtype": "channel_leave",
+        "ts": "1469440454.000002"
+    },
+    {
+        "user": "U15FUR1QS",
+        "purpose": "Let's discuss our next monthly outing",
+        "type": "message",
+        "subtype": "channel_purpose",
+        "text": "<@U15FUR1QS|igor> set the channel purpose: Let's discuss our next monthly outing",
+        "ts": "1462216387.000003"
+    },
+    {
+        "type": "message",
+        "subtype": "file_share",
+        "text": "<@U07Q4MHCP|lindy> uploaded a file: <https:\/\/slackexportteam.slack.com\/files\/lindy\/F1WB5FH7W\/pdf.pdf|Pdf.pdf>",
+        "file": {
+            "id": "F1WB5FH7W",
+            "created": 1469782519,
+            "timestamp": 1469782519,
+            "name": "Pdf.pdf",
+            "title": "Pdf.pdf",
+            "mimetype": "application\/pdf",
+            "filetype": "pdf",
+            "pretty_type": "PDF",
+            "user": "U07Q4MHCP",
+            "editable": false,
+            "size": 457717,
+            "mode": "hosted",
+            "is_external": false,
+            "external_type": "",
+            "is_public": true,
+            "public_url_shared": false,
+            "display_as_bot": false,
+            "username": "",
+            "url_private": "https:\/\/files.slack.com\/files-pri\/T07Q4MHC7-F1WB5FH7W\/pdf.pdf?t=xoxe-7820731415-83616398485-83620610359-b95751e3ea",
+            "url_private_download": "https:\/\/files.slack.com\/files-pri\/T07Q4MHC7-F1WB5FH7W\/download\/pdf.pdf?t=xoxe-7820731415-83616398485-83620610359-b95751e3ea",
+            "permalink": "https:\/\/slackexportteam.slack.com\/files\/lindy\/F1WB5FH7W\/pdf.pdf",
+            "permalink_public": "https:\/\/slack-files.com\/T07Q4MHC7-F1WB5FH7W-8560bd68a4",
+            "channels": [
+                "C07Q4MBTL"
+            ],
+            "groups": [
+    
+            ],
+            "ims": [
+    
+            ],
+            "comments_count": 0
+        },
+        "user": "U07Q4MHCP",
+        "upload": true,
+        "display_as_bot": false,
+        "username": "<@U07Q4MHCP|lindy>",
+        "bot_id": null,
+        "ts": "1469782519.000002"
+    },
+    {
+        "user": "U24CG47QU",
+        "text": "<@U24CG47QU|lindy.invite> has joined the channel",
+        "type": "message",
+        "subtype": "channel_join",
+        "ts": "1472028157.000002"
+    },
+    {
+        "bot_id": "B13CH9S5V",
+        "attachments": [
+            {
+                "fallback": "<https:\/\/twitter.com\/m2pls|@m2pls>: M2 informatique PLS et EID2 on vous retrouve sur le <https:\/\/twitter.com\/mattermosthq|@mattermosthq> du master, les invitations partiront lundi (ou demander en MP).",
+                "ts": 1474722287,
+                "author_name": "Master 2 PLS",
+                "author_link": "https:\/\/twitter.com\/m2pls\/status\/779667900600844288",
+                "author_icon": "https:\/\/pbs.twimg.com\/profile_images\/649829889890086912\/ULpVHs9S_normal.jpg",
+                "author_subname": "@m2pls",
+                "pretext": "<https:\/\/twitter.com\/m2pls\/status\/779667900600844288>",
+                "text": "M2 informatique PLS et EID2 on vous retrouve sur le <https:\/\/twitter.com\/mattermosthq|@mattermosthq> du master, les invitations partiront lundi (ou demander en MP).",
+                "service_name": "twitter",
+                "service_url": "https:\/\/twitter.com\/",
+                "from_url": "https:\/\/twitter.com\/m2pls\/status\/779667900600844288",
+                "id": 1,
+                "footer": "Twitter",
+                "footer_icon": "https:\/\/a.slack-edge.com\/6e067\/img\/services\/twitter_pixel_snapped_32.png"
+            }
+        ],
+        "text": null,
+        "type": "message",
+        "subtype": "bot_message",
+        "ts": "1474722288.637240"
+    },
+    {
+        "type": "message",
+        "user": "U07Q4MHCP",
+        "text": "<https:\/\/slackexportteam.slack.com\/archives\/general\/p1469781868000005>",
+        "attachments": [
+            {
+                "from_url": "https:\/\/slackexportteam.slack.com\/archives\/general\/p1469781868000005",
+                "fallback": "[July 29th, 2016 1:44 AM] lindy: permalink?",
+                "ts": "1469781868.000005",
+                "author_subname": "lindy",
+                "channel_id": "C07Q4SBL3",
+                "channel_name": "general",
+                "is_msg_unfurl": true,
+                "text": "permalink?",
+                "author_link": "https:\/\/slackexportteam.slack.com\/team\/lindy",
+                "author_icon": "https:\/\/secure.gravatar.com\/avatar\/822d051544b1f50f1e9f015cd2990edc.jpg?s=48&d=https%3A%2F%2Fa.slack-edge.com%2F0180%2Fimg%2Favatars%2Fava_0001-48.png",
+                "mrkdwn_in": [
+                    "text"
+                ],
+                "id": 1,
+                "footer": "Posted in #general"
+            }
+        ],
+        "ts": "1469781880.000006"
+    },
+    {
+        "type": "message",
+        "subtype": "file_share",
+        "text": "<@U07Q4MHCP|lindy> uploaded a file: <https:\/\/slackexportteam.slack.com\/files\/lindy\/F1WBDJW93\/fb-wow.gif|fb-wow.gif>",
+        "file": {
+            "id": "F1WBDJW93",
+            "created": 1469782076,
+            "timestamp": 1469782076,
+            "name": "fb-wow.gif",
+            "title": "fb-wow.gif",
+            "mimetype": "image\/gif",
+            "filetype": "gif",
+            "pretty_type": "GIF",
+            "user": "U07Q4MHCP",
+            "editable": false,
+            "size": 27235,
+            "mode": "hosted",
+            "is_external": false,
+            "external_type": "",
+            "is_public": true,
+            "public_url_shared": false,
+            "display_as_bot": false,
+            "username": "",
+            "url_private": "https:\/\/files.slack.com\/files-pri\/T07Q4MHC7-F1WBDJW93\/fb-wow.gif?t=xoxe-7820731415-83616398485-83620610359-b95751e3ea",
+            "url_private_download": "https:\/\/files.slack.com\/files-pri\/T07Q4MHC7-F1WBDJW93\/download\/fb-wow.gif?t=xoxe-7820731415-83616398485-83620610359-b95751e3ea",
+            "thumb_64": "https:\/\/files.slack.com\/files-tmb\/T07Q4MHC7-F1WBDJW93-7031b90b93\/fb-wow_64.png?t=xoxe-7820731415-83616398485-83620610359-b95751e3ea",
+            "thumb_80": "https:\/\/files.slack.com\/files-tmb\/T07Q4MHC7-F1WBDJW93-7031b90b93\/fb-wow_80.png?t=xoxe-7820731415-83616398485-83620610359-b95751e3ea",
+            "thumb_360": "https:\/\/files.slack.com\/files-tmb\/T07Q4MHC7-F1WBDJW93-7031b90b93\/fb-wow_360.png?t=xoxe-7820731415-83616398485-83620610359-b95751e3ea",
+            "thumb_360_w": 59,
+            "thumb_360_h": 59,
+            "thumb_160": "https:\/\/files.slack.com\/files-tmb\/T07Q4MHC7-F1WBDJW93-7031b90b93\/fb-wow_160.png?t=xoxe-7820731415-83616398485-83620610359-b95751e3ea",
+            "image_exif_rotation": 1,
+            "original_w": 59,
+            "original_h": 59,
+            "deanimate_gif": "https:\/\/files.slack.com\/files-tmb\/T07Q4MHC7-F1WBDJW93-7031b90b93\/fb-wow_deanimate_gif.png?t=xoxe-7820731415-83616398485-83620610359-b95751e3ea",
+            "permalink": "https:\/\/slackexportteam.slack.com\/files\/lindy\/F1WBDJW93\/fb-wow.gif",
+            "permalink_public": "https:\/\/slack-files.com\/T07Q4MHC7-F1WBDJW93-718081d960",
+            "channels": [
+                "C07Q4SBL3"
+            ],
+            "groups": [
+    
+            ],
+            "ims": [
+    
+            ],
+            "comments_count": 0
+        },
+        "user": "U07Q4MHCP",
+        "upload": true,
+        "display_as_bot": false,
+        "username": "<@U07Q4MHCP|lindy>",
+        "bot_id": null,
+        "ts": "1469782077.000010"
+    }
+]
\ No newline at end of file
diff --git a/tests/slack-import-test-users.json b/tests/slack-import-test-users.json
new file mode 100644
index 000000000..40b53a45b
--- /dev/null
+++ b/tests/slack-import-test-users.json
@@ -0,0 +1,363 @@
+[
+    {
+        "id": "U13CLGTKK",
+        "team_id": "T07Q4MHC7",
+        "name": "alice",
+        "deleted": false,
+        "status": null,
+        "color": "4bbe2e",
+        "real_name": "Alice",
+        "tz": "Africa\/Cairo",
+        "tz_label": "Eastern European Time",
+        "tz_offset": 7200,
+        "profile": {
+            "first_name": "Alice",
+            "last_name": "",
+            "avatar_hash": "g2280143ab5d",
+            "real_name": "Alice",
+            "real_name_normalized": "Alice",
+            "email": "lindy+1@example.com",
+            "image_24": "https:\/\/secure.gravatar.com\/avatar\/2280143ab5dd760d0a951b74bd06185a.jpg?s=24&d=https%3A%2F%2Fa.slack-edge.com%2F0180%2Fimg%2Favatars%2Fava_0021-24.png",
+            "image_32": "https:\/\/secure.gravatar.com\/avatar\/2280143ab5dd760d0a951b74bd06185a.jpg?s=32&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0021-32.png",
+            "image_48": "https:\/\/secure.gravatar.com\/avatar\/2280143ab5dd760d0a951b74bd06185a.jpg?s=48&d=https%3A%2F%2Fa.slack-edge.com%2F3654%2Fimg%2Favatars%2Fava_0021-48.png",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/2280143ab5dd760d0a951b74bd06185a.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0021-72.png",
+            "image_192": "https:\/\/secure.gravatar.com\/avatar\/2280143ab5dd760d0a951b74bd06185a.jpg?s=192&d=https%3A%2F%2Fa.slack-edge.com%2F7fa9%2Fimg%2Favatars%2Fava_0021-192.png",
+            "image_512": "https:\/\/secure.gravatar.com\/avatar\/2280143ab5dd760d0a951b74bd06185a.jpg?s=512&d=https%3A%2F%2Fa.slack-edge.com%2F7fa9%2Fimg%2Favatars%2Fava_0021-512.png",
+            "fields": null
+        },
+        "is_admin": true,
+        "is_owner": false,
+        "is_primary_owner": false,
+        "is_restricted": false,
+        "is_ultra_restricted": false,
+        "is_bot": false
+    },
+    {
+        "id": "U15F73RL4",
+        "team_id": "T07Q4MHC7",
+        "name": "brett",
+        "deleted": false,
+        "status": null,
+        "color": "e96699",
+        "real_name": "Brett",
+        "tz": "Africa\/Cairo",
+        "tz_label": "Eastern European Time",
+        "tz_offset": 7200,
+        "profile": {
+            "first_name": "Brett",
+            "last_name": "",
+            "avatar_hash": "g16de52e9c3d",
+            "real_name": "Brett",
+            "real_name_normalized": "Brett",
+            "email": "lindy+13@example.com",
+            "image_24": "https:\/\/secure.gravatar.com\/avatar\/16de52e9c3dd5917b72a327f9b36a7db.jpg?s=24&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0001-24.png",
+            "image_32": "https:\/\/secure.gravatar.com\/avatar\/16de52e9c3dd5917b72a327f9b36a7db.jpg?s=32&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0001-32.png",
+            "image_48": "https:\/\/secure.gravatar.com\/avatar\/16de52e9c3dd5917b72a327f9b36a7db.jpg?s=48&d=https%3A%2F%2Fa.slack-edge.com%2F0180%2Fimg%2Favatars%2Fava_0001-48.png",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/16de52e9c3dd5917b72a327f9b36a7db.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2F3654%2Fimg%2Favatars%2Fava_0001-72.png",
+            "image_192": "https:\/\/secure.gravatar.com\/avatar\/16de52e9c3dd5917b72a327f9b36a7db.jpg?s=192&d=https%3A%2F%2Fa.slack-edge.com%2F7fa9%2Fimg%2Favatars%2Fava_0001-192.png",
+            "image_512": "https:\/\/secure.gravatar.com\/avatar\/16de52e9c3dd5917b72a327f9b36a7db.jpg?s=512&d=https%3A%2F%2Fa.slack-edge.com%2F7fa9%2Fimg%2Favatars%2Fava_0001-512.png",
+            "fields": null
+        },
+        "is_admin": false,
+        "is_owner": false,
+        "is_primary_owner": false,
+        "is_restricted": false,
+        "is_ultra_restricted": false,
+        "is_bot": false
+    },
+    {
+        "id": "U15FUR1QS",
+        "team_id": "T07Q4MHC7",
+        "name": "igor",
+        "deleted": false,
+        "status": null,
+        "color": "5b89d5",
+        "real_name": "Igor",
+        "tz": "Africa\/Cairo",
+        "tz_label": "Eastern European Time",
+        "tz_offset": 7200,
+        "profile": {
+            "first_name": "Igor",
+            "last_name": "",
+            "avatar_hash": "gd2d8b6603c7",
+            "real_name": "Igor",
+            "real_name_normalized": "Igor",
+            "email": "lindy+12@example.com",
+            "image_24": "https:\/\/secure.gravatar.com\/avatar\/d2d8b6603c7e7eb443ccc103f50852c5.jpg?s=24&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0019-24.png",
+            "image_32": "https:\/\/secure.gravatar.com\/avatar\/d2d8b6603c7e7eb443ccc103f50852c5.jpg?s=32&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0019-32.png",
+            "image_48": "https:\/\/secure.gravatar.com\/avatar\/d2d8b6603c7e7eb443ccc103f50852c5.jpg?s=48&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0019-48.png",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/d2d8b6603c7e7eb443ccc103f50852c5.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0019-72.png",
+            "image_192": "https:\/\/secure.gravatar.com\/avatar\/d2d8b6603c7e7eb443ccc103f50852c5.jpg?s=192&d=https%3A%2F%2Fa.slack-edge.com%2F7fa9%2Fimg%2Favatars%2Fava_0019-192.png",
+            "image_512": "https:\/\/secure.gravatar.com\/avatar\/d2d8b6603c7e7eb443ccc103f50852c5.jpg?s=512&d=https%3A%2F%2Fa.slack-edge.com%2F7fa9%2Fimg%2Favatars%2Fava_0019-512.png",
+            "fields": null
+        },
+        "is_admin": false,
+        "is_owner": false,
+        "is_primary_owner": false,
+        "is_restricted": false,
+        "is_ultra_restricted": false,
+        "is_bot": false
+    },
+    {
+        "id": "U15FHR92R",
+        "team_id": "T07Q4MHC7",
+        "name": "karen",
+        "deleted": false,
+        "status": null,
+        "color": "684b6c",
+        "real_name": "Karen",
+        "tz": "Africa\/Cairo",
+        "tz_label": "Eastern European Time",
+        "tz_offset": 7200,
+        "profile": {
+            "first_name": "Karen",
+            "last_name": "",
+            "avatar_hash": "g6fd11d3e252",
+            "real_name": "Karen",
+            "real_name_normalized": "Karen",
+            "email": "lindy+10@example.com",
+            "image_24": "https:\/\/secure.gravatar.com\/avatar\/6fd11d3e252e571d7371c7a5bbeb54ff.jpg?s=24&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0007-24.png",
+            "image_32": "https:\/\/secure.gravatar.com\/avatar\/6fd11d3e252e571d7371c7a5bbeb54ff.jpg?s=32&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0007-32.png",
+            "image_48": "https:\/\/secure.gravatar.com\/avatar\/6fd11d3e252e571d7371c7a5bbeb54ff.jpg?s=48&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0007-48.png",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/6fd11d3e252e571d7371c7a5bbeb54ff.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0007-72.png",
+            "image_192": "https:\/\/secure.gravatar.com\/avatar\/6fd11d3e252e571d7371c7a5bbeb54ff.jpg?s=192&d=https%3A%2F%2Fa.slack-edge.com%2F7fa9%2Fimg%2Favatars%2Fava_0007-192.png",
+            "image_512": "https:\/\/secure.gravatar.com\/avatar\/6fd11d3e252e571d7371c7a5bbeb54ff.jpg?s=512&d=https%3A%2F%2Fa.slack-edge.com%2F7fa9%2Fimg%2Favatars%2Fava_0007-512.png",
+            "fields": null
+        },
+        "is_admin": false,
+        "is_owner": false,
+        "is_primary_owner": false,
+        "is_restricted": false,
+        "is_ultra_restricted": false,
+        "is_bot": false
+    },
+    {
+        "id": "U1THQPEMV",
+        "team_id": "T07Q4MHC7",
+        "name": "lindsay",
+        "deleted": false,
+        "status": null,
+        "color": "2b6836",
+        "real_name": "Lindsay B",
+        "tz": "America\/New_York",
+        "tz_label": "Eastern Daylight Time",
+        "tz_offset": -14400,
+        "profile": {
+            "first_name": "Lindsay",
+            "last_name": "B",
+            "avatar_hash": "g59bda23e5db",
+            "real_name": "Lindsay B",
+            "real_name_normalized": "Lindsay B",
+            "email": "lindsay@example.com",
+            "image_24": "https:\/\/secure.gravatar.com\/avatar\/59bda23e5dbe5930c3941c7bb90c3e2a.jpg?s=24&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0000-24.png",
+            "image_32": "https:\/\/secure.gravatar.com\/avatar\/59bda23e5dbe5930c3941c7bb90c3e2a.jpg?s=32&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0000-32.png",
+            "image_48": "https:\/\/secure.gravatar.com\/avatar\/59bda23e5dbe5930c3941c7bb90c3e2a.jpg?s=48&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0000-48.png",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/59bda23e5dbe5930c3941c7bb90c3e2a.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0000-72.png",
+            "image_192": "https:\/\/secure.gravatar.com\/avatar\/59bda23e5dbe5930c3941c7bb90c3e2a.jpg?s=192&d=https%3A%2F%2Fa.slack-edge.com%2F7fa9%2Fimg%2Favatars%2Fava_0000-192.png",
+            "image_512": "https:\/\/secure.gravatar.com\/avatar\/59bda23e5dbe5930c3941c7bb90c3e2a.jpg?s=512&d=https%3A%2F%2Fa.slack-edge.com%2F7fa9%2Fimg%2Favatars%2Fava_0000-512.png",
+            "fields": null
+        },
+        "is_admin": false,
+        "is_owner": false,
+        "is_primary_owner": false,
+        "is_restricted": false,
+        "is_ultra_restricted": false,
+        "is_bot": false
+    },
+    {
+        "id": "U07Q4MHCP",
+        "team_id": "T07Q4MHC7",
+        "name": "lindy",
+        "deleted": false,
+        "status": null,
+        "color": "9f69e7",
+        "real_name": "",
+        "tz": "Africa\/Cairo",
+        "tz_label": "Eastern European Time",
+        "tz_offset": 7200,
+        "profile": {
+            "avatar_hash": "g822d051544b",
+            "real_name": "",
+            "real_name_normalized": "",
+            "email": "lindy@example.com",
+            "image_24": "https:\/\/secure.gravatar.com\/avatar\/822d051544b1f50f1e9f015cd2990edc.jpg?s=24&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0001-24.png",
+            "image_32": "https:\/\/secure.gravatar.com\/avatar\/822d051544b1f50f1e9f015cd2990edc.jpg?s=32&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0001-32.png",
+            "image_48": "https:\/\/secure.gravatar.com\/avatar\/822d051544b1f50f1e9f015cd2990edc.jpg?s=48&d=https%3A%2F%2Fa.slack-edge.com%2F0180%2Fimg%2Favatars%2Fava_0001-48.png",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/822d051544b1f50f1e9f015cd2990edc.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2F3654%2Fimg%2Favatars%2Fava_0001-72.png",
+            "image_192": "https:\/\/secure.gravatar.com\/avatar\/822d051544b1f50f1e9f015cd2990edc.jpg?s=192&d=https%3A%2F%2Fa.slack-edge.com%2F7fa9%2Fimg%2Favatars%2Fava_0001-192.png",
+            "image_512": "https:\/\/secure.gravatar.com\/avatar\/822d051544b1f50f1e9f015cd2990edc.jpg?s=512&d=https%3A%2F%2Fa.slack-edge.com%2F7fa9%2Fimg%2Favatars%2Fava_0001-512.png",
+            "fields": null
+        },
+        "is_admin": true,
+        "is_owner": true,
+        "is_primary_owner": true,
+        "is_restricted": false,
+        "is_ultra_restricted": false,
+        "is_bot": false
+    },
+    {
+        "id": "U24CG47QU",
+        "team_id": "T07Q4MHC7",
+        "name": "lindy.invite",
+        "deleted": false,
+        "status": null,
+        "color": "99a949",
+        "real_name": "lindy invite",
+        "tz": "Africa\/Cairo",
+        "tz_label": "Eastern European Time",
+        "tz_offset": 7200,
+        "profile": {
+            "first_name": "lindy",
+            "last_name": "invite",
+            "avatar_hash": "g1c46f51413d",
+            "real_name": "lindy invite",
+            "real_name_normalized": "lindy invite",
+            "email": "lindy+invite@example.com",
+            "image_24": "https:\/\/secure.gravatar.com\/avatar\/1c46f51413d2af8048dfaadcf43f5a03.jpg?s=24&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0015-24.png",
+            "image_32": "https:\/\/secure.gravatar.com\/avatar\/1c46f51413d2af8048dfaadcf43f5a03.jpg?s=32&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0015-32.png",
+            "image_48": "https:\/\/secure.gravatar.com\/avatar\/1c46f51413d2af8048dfaadcf43f5a03.jpg?s=48&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0015-48.png",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/1c46f51413d2af8048dfaadcf43f5a03.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0015-72.png",
+            "image_192": "https:\/\/secure.gravatar.com\/avatar\/1c46f51413d2af8048dfaadcf43f5a03.jpg?s=192&d=https%3A%2F%2Fa.slack-edge.com%2F7fa9%2Fimg%2Favatars%2Fava_0015-192.png",
+            "image_512": "https:\/\/secure.gravatar.com\/avatar\/1c46f51413d2af8048dfaadcf43f5a03.jpg?s=512&d=https%3A%2F%2Fa.slack-edge.com%2F7fa9%2Fimg%2Favatars%2Fava_0015-512.png",
+            "fields": null
+        },
+        "is_admin": false,
+        "is_owner": false,
+        "is_primary_owner": false,
+        "is_restricted": false,
+        "is_ultra_restricted": false,
+        "is_bot": false
+    },
+    {
+        "id": "U15FHKEKX",
+        "team_id": "T07Q4MHC7",
+        "name": "peter",
+        "deleted": false,
+        "status": null,
+        "color": "e0a729",
+        "real_name": "Peter",
+        "tz": "Africa\/Cairo",
+        "tz_label": "Eastern European Time",
+        "tz_offset": 7200,
+        "profile": {
+            "first_name": "Peter",
+            "last_name": "",
+            "avatar_hash": "g5f5c8dacc18",
+            "real_name": "Peter",
+            "real_name_normalized": "Peter",
+            "email": "lindy+14@example.com",
+            "image_24": "https:\/\/secure.gravatar.com\/avatar\/5f5c8dacc18f616a0dcdec904fdd5cea.jpg?s=24&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0014-24.png",
+            "image_32": "https:\/\/secure.gravatar.com\/avatar\/5f5c8dacc18f616a0dcdec904fdd5cea.jpg?s=32&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0014-32.png",
+            "image_48": "https:\/\/secure.gravatar.com\/avatar\/5f5c8dacc18f616a0dcdec904fdd5cea.jpg?s=48&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0014-48.png",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/5f5c8dacc18f616a0dcdec904fdd5cea.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0014-72.png",
+            "image_192": "https:\/\/secure.gravatar.com\/avatar\/5f5c8dacc18f616a0dcdec904fdd5cea.jpg?s=192&d=https%3A%2F%2Fa.slack-edge.com%2F7fa9%2Fimg%2Favatars%2Fava_0014-192.png",
+            "image_512": "https:\/\/secure.gravatar.com\/avatar\/5f5c8dacc18f616a0dcdec904fdd5cea.jpg?s=512&d=https%3A%2F%2Fa.slack-edge.com%2F7fa9%2Fimg%2Favatars%2Fava_0014-512.png",
+            "fields": null
+        },
+        "is_admin": false,
+        "is_owner": false,
+        "is_primary_owner": false,
+        "is_restricted": false,
+        "is_ultra_restricted": false,
+        "is_bot": false
+    },
+    {
+        "id": "U15F922BY",
+        "team_id": "T07Q4MHC7",
+        "name": "sam",
+        "deleted": false,
+        "status": null,
+        "color": "674b1b",
+        "real_name": "Sam",
+        "tz": "Africa\/Cairo",
+        "tz_label": "Eastern European Time",
+        "tz_offset": 7200,
+        "profile": {
+            "first_name": "Sam",
+            "last_name": "",
+            "avatar_hash": "gef41b9b8176",
+            "real_name": "Sam",
+            "real_name_normalized": "Sam",
+            "email": "lindy+11@example.com",
+            "image_24": "https:\/\/secure.gravatar.com\/avatar\/ef41b9b8176fba6eaffdfe04415df8be.jpg?s=24&d=https%3A%2F%2Fa.slack-edge.com%2F0180%2Fimg%2Favatars%2Fava_0017-24.png",
+            "image_32": "https:\/\/secure.gravatar.com\/avatar\/ef41b9b8176fba6eaffdfe04415df8be.jpg?s=32&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0017-32.png",
+            "image_48": "https:\/\/secure.gravatar.com\/avatar\/ef41b9b8176fba6eaffdfe04415df8be.jpg?s=48&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0017-48.png",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/ef41b9b8176fba6eaffdfe04415df8be.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0017-72.png",
+            "image_192": "https:\/\/secure.gravatar.com\/avatar\/ef41b9b8176fba6eaffdfe04415df8be.jpg?s=192&d=https%3A%2F%2Fa.slack-edge.com%2F7fa9%2Fimg%2Favatars%2Fava_0017-192.png",
+            "image_512": "https:\/\/secure.gravatar.com\/avatar\/ef41b9b8176fba6eaffdfe04415df8be.jpg?s=512&d=https%3A%2F%2Fa.slack-edge.com%2F7fa9%2Fimg%2Favatars%2Fava_0017-512.png",
+            "fields": null
+        },
+        "is_admin": false,
+        "is_owner": false,
+        "is_primary_owner": false,
+        "is_restricted": false,
+        "is_ultra_restricted": false,
+        "is_bot": false
+    },
+    {
+        "id": "U13CSKE2E",
+        "team_id": "T07Q4MHC7",
+        "name": "sandy",
+        "deleted": false,
+        "status": null,
+        "color": "3c989f",
+        "real_name": "Sandy",
+        "tz": "Africa\/Cairo",
+        "tz_label": "Eastern European Time",
+        "tz_offset": 7200,
+        "profile": {
+            "first_name": "Sandy",
+            "last_name": "",
+            "avatar_hash": "g7bb3eebada3",
+            "real_name": "Sandy",
+            "real_name_normalized": "Sandy",
+            "email": "lindy+3@example.com",
+            "image_24": "https:\/\/secure.gravatar.com\/avatar\/7bb3eebada3d8ee1251980df86904ec9.jpg?s=24&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0013-24.png",
+            "image_32": "https:\/\/secure.gravatar.com\/avatar\/7bb3eebada3d8ee1251980df86904ec9.jpg?s=32&d=https%3A%2F%2Fa.slack-edge.com%2F0180%2Fimg%2Favatars%2Fava_0013-32.png",
+            "image_48": "https:\/\/secure.gravatar.com\/avatar\/7bb3eebada3d8ee1251980df86904ec9.jpg?s=48&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0013-48.png",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/7bb3eebada3d8ee1251980df86904ec9.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0013-72.png",
+            "image_192": "https:\/\/secure.gravatar.com\/avatar\/7bb3eebada3d8ee1251980df86904ec9.jpg?s=192&d=https%3A%2F%2Fa.slack-edge.com%2F7fa9%2Fimg%2Favatars%2Fava_0013-192.png",
+            "image_512": "https:\/\/secure.gravatar.com\/avatar\/7bb3eebada3d8ee1251980df86904ec9.jpg?s=512&d=https%3A%2F%2Fa.slack-edge.com%2F7fa9%2Fimg%2Favatars%2Fava_0013-512.png",
+            "fields": null
+        },
+        "is_admin": false,
+        "is_owner": false,
+        "is_primary_owner": false,
+        "is_restricted": false,
+        "is_ultra_restricted": false,
+        "is_bot": false
+    },
+    {
+        "id": "U13C5JZ7W",
+        "team_id": "T07Q4MHC7",
+        "name": "ted",
+        "deleted": false,
+        "status": null,
+        "color": "e7392d",
+        "real_name": "Ted",
+        "tz": "Africa\/Cairo",
+        "tz_label": "Eastern European Time",
+        "tz_offset": 7200,
+        "profile": {
+            "first_name": "Ted",
+            "last_name": "",
+            "avatar_hash": "g5b31933276f",
+            "real_name": "Ted",
+            "real_name_normalized": "Ted",
+            "email": "lindy+2@example.com",
+            "image_24": "https:\/\/secure.gravatar.com\/avatar\/5b31933276f699aa8ff55a8fe4a2e7cb.jpg?s=24&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0022-24.png",
+            "image_32": "https:\/\/secure.gravatar.com\/avatar\/5b31933276f699aa8ff55a8fe4a2e7cb.jpg?s=32&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0022-32.png",
+            "image_48": "https:\/\/secure.gravatar.com\/avatar\/5b31933276f699aa8ff55a8fe4a2e7cb.jpg?s=48&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0022-48.png",
+            "image_72": "https:\/\/secure.gravatar.com\/avatar\/5b31933276f699aa8ff55a8fe4a2e7cb.jpg?s=72&d=https%3A%2F%2Fa.slack-edge.com%2F66f9%2Fimg%2Favatars%2Fava_0022-72.png",
+            "image_192": "https:\/\/secure.gravatar.com\/avatar\/5b31933276f699aa8ff55a8fe4a2e7cb.jpg?s=192&d=https%3A%2F%2Fa.slack-edge.com%2F7fa9%2Fimg%2Favatars%2Fava_0022-192.png",
+            "image_512": "https:\/\/secure.gravatar.com\/avatar\/5b31933276f699aa8ff55a8fe4a2e7cb.jpg?s=512&d=https%3A%2F%2Fa.slack-edge.com%2F7fa9%2Fimg%2Favatars%2Fava_0022-512.png",
+            "fields": null
+        },
+        "is_admin": true,
+        "is_owner": false,
+        "is_primary_owner": false,
+        "is_restricted": false,
+        "is_ultra_restricted": false,
+        "is_bot": false
+    }
+]
\ No newline at end of file