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Add utility function for validating slack integrations (#1114)
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| Original file line number | Diff line number | Diff line change |
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@@ -363,6 +363,7 @@ workflows: | |
| - test: | ||
| context: | ||
| - Gruntwork Admin | ||
| - Slack Token For Test | ||
| requires: | ||
| - setup | ||
| filters: | ||
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|
||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,2 @@ | ||
| // Package slack contains routines useful for testing slack integrations. | ||
| package slack |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| package slack | ||
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| import ( | ||
| "fmt" | ||
| "strconv" | ||
| "strings" | ||
| "time" | ||
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| "github.com/gruntwork-io/terratest/modules/testing" | ||
| "github.com/slack-go/slack" | ||
| ) | ||
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| // ValidateExpectedSlackMessage validates whether a message containing the expected text was posted in the given channel | ||
| // ID, looking back historyLimit messages up to the given duration. For example, if you set (15*time.Minute) as the | ||
| // lookBack parameter with historyLimit set to 50, then this will look back the last 50 messages, up to 15 minutes ago. | ||
| // This expects a slack token to be provided. This returns MessageNotFoundErr when there is no match. | ||
| // For the purposes of matching, this only checks the following blocks: | ||
| // - Section block text | ||
| // - Header block text | ||
| // All other blocks are ignored in the validation. | ||
| // NOTE: This only looks for bot posted messages. | ||
| func ValidateExpectedSlackMessageE( | ||
| t testing.TestingT, | ||
| token, | ||
| channelID, | ||
| expectedText string, | ||
| historyLimit int, | ||
| lookBack time.Duration, | ||
| ) error { | ||
| lookBackTime := time.Now().Add(-1 * lookBack) | ||
| slackClt := slack.New(token) | ||
| params := slack.GetConversationHistoryParameters{ | ||
| ChannelID: channelID, | ||
| Limit: historyLimit, | ||
| Oldest: strconv.FormatInt(lookBackTime.Unix(), 10), | ||
| } | ||
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| resp, err := slackClt.GetConversationHistory(¶ms) | ||
| if err != nil { | ||
| return err | ||
| } | ||
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| for _, msg := range resp.Messages { | ||
| if checkMessageContainsText(msg.Msg, expectedText) { | ||
| return nil | ||
| } | ||
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| if msg.SubMessage != nil { | ||
| if checkMessageContainsText(*msg.SubMessage, expectedText) { | ||
| return nil | ||
| } | ||
| } | ||
| } | ||
| return fmt.Errorf("still no message") | ||
| } | ||
|
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| func checkMessageContainsText(msg slack.Msg, expectedText string) bool { | ||
| // If this message is not a bot message, ignore. | ||
| if msg.Type != slack.MsgSubTypeBotMessage && msg.BotID == "" { | ||
| return false | ||
| } | ||
|
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| // Check message text | ||
| if strings.Contains(msg.Text, expectedText) { | ||
| return true | ||
| } | ||
|
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| // Check attachments | ||
| for _, attachment := range msg.Attachments { | ||
| if strings.Contains(attachment.Text, expectedText) { | ||
| return true | ||
| } | ||
| } | ||
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| // Check blocks | ||
| for _, block := range msg.Blocks.BlockSet { | ||
| switch block.BlockType() { | ||
| case slack.MBTSection: | ||
| sectionBlk := block.(*slack.SectionBlock) | ||
| if sectionBlk.Text != nil && strings.Contains(sectionBlk.Text.Text, expectedText) { | ||
| return true | ||
| } | ||
| case slack.MBTHeader: | ||
| headerBlk := block.(*slack.HeaderBlock) | ||
| if headerBlk.Text != nil && strings.Contains(headerBlk.Text.Text, expectedText) { | ||
| return true | ||
| } | ||
| } | ||
| } | ||
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| return false | ||
| } | ||
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| type MessageNotFoundErr struct{} | ||
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| func (err MessageNotFoundErr) Error() string { | ||
| return "Could not find the expected text in any of the messages posted in the given channel." | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| package slack | ||
|
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| import ( | ||
| "fmt" | ||
| "os" | ||
| "testing" | ||
| "time" | ||
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| "github.com/slack-go/slack" | ||
| "github.com/stretchr/testify/require" | ||
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| "github.com/gruntwork-io/terratest/modules/environment" | ||
| "github.com/gruntwork-io/terratest/modules/random" | ||
| "github.com/gruntwork-io/terratest/modules/retry" | ||
| ) | ||
|
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| const ( | ||
| slackTokenEnv = "SLACK_TOKEN_FOR_TEST" | ||
| slackChannelIDEnv = "SLACK_CHANNEL_ID_FOR_TEST" | ||
| ) | ||
|
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| func TestValidateSlackMessage(t *testing.T) { | ||
| t.Parallel() | ||
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| environment.RequireEnvVar(t, slackTokenEnv) | ||
| environment.RequireEnvVar(t, slackChannelIDEnv) | ||
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| token := os.Getenv(slackTokenEnv) | ||
| channelID := os.Getenv(slackChannelIDEnv) | ||
|
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| uniqueID := random.UniqueId() | ||
| msgTxt := fmt.Sprintf("Test message from terratest: %s", uniqueID) | ||
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| slackClt := slack.New(token) | ||
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| _, _, err := slackClt.PostMessage( | ||
| channelID, | ||
| slack.MsgOptionText(msgTxt, false), | ||
| ) | ||
| require.NoError(t, err) | ||
|
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| retry.DoWithRetry( | ||
| t, | ||
| "wait for slack message", | ||
| 6, 10*time.Second, | ||
| func() (string, error) { | ||
| err := ValidateExpectedSlackMessageE(t, token, channelID, msgTxt, 10, 5*time.Minute) | ||
| return "", err | ||
| }, | ||
| ) | ||
| } |