lint: apply latest testifylint rules

.golangci.yml

@@ -84,14 +84,5 @@ linters-settings:
     disable:
       - float-compare
       - go-require
-    enable:
-      - bool-compare
-      - compares
-      - empty
-      - error-is-as
-      - error-nil
-      - expected-actual
-      - len
-      - require-error
-      - suite-dont-use-pkg
-      - suite-extra-assert-call
+      - useless-assert
+    enable-all: true

api/v2/api_test.go

@@ -16,7 +16,6 @@ package v2
 import (
 	"bytes"
 	"encoding/json"
-	"fmt"
 	"io"
 	"net/http"
 	"net/http/httptest"
@@ -206,7 +205,7 @@ func TestDeleteSilenceHandler(t *testing.T) {
 		responder.WriteResponse(w, p)
 		body, _ := io.ReadAll(w.Result().Body)
 
-		require.Equal(t, tc.expectedCode, w.Code, fmt.Sprintf("test case: %d, response: %s", i, string(body)))
+		require.Equalf(t, tc.expectedCode, w.Code, "test case: %d, response: %s", i, string(body))
 	}
 }
 
@@ -280,7 +279,7 @@ func TestPostSilencesHandler(t *testing.T) {
 				w := httptest.NewRecorder()
 				postSilences(t, w, api.postSilencesHandler, sil)
 				body, _ := io.ReadAll(w.Result().Body)
-				require.Equal(t, tc.expectedCode, w.Code, fmt.Sprintf("test case: %d, response: %s", i, string(body)))
+				require.Equalf(t, tc.expectedCode, w.Code, "test case: %d, response: %s", i, string(body))
 			})
 		}
 	})

config/config_test.go

@@ -547,7 +547,7 @@ func TestJSONMarshalSecret(t *testing.T) {
 
 	// u003c -> "<"
 	// u003e -> ">"
-	require.Equal(t, "{\"S\":\"\\u003csecret\\u003e\"}", string(c), "Secret not properly elided.")
+	require.JSONEq(t, "{\"S\":\"\\u003csecret\\u003e\"}", string(c), "Secret not properly elided.")
 }
 
 func TestMarshalSecretURL(t *testing.T) {
@@ -1382,8 +1382,7 @@ func TestNilRegexp(t *testing.T) {
 			require.NoError(t, err)
 
 			_, err = LoadFile(tc.file)
-			require.Error(t, err)
-			require.Contains(t, err.Error(), tc.errMsg)
+			require.ErrorContains(t, err, tc.errMsg)
 		})
 	}
 }

notify/discord/discord_test.go

@@ -16,7 +16,6 @@ package discord
 import (
 	"context"
 	"encoding/json"
-	"fmt"
 	"io"
 	"net/http"
 	"net/http/httptest"
@@ -52,7 +51,7 @@ func TestDiscordRetry(t *testing.T) {
 
 	for statusCode, expected := range test.RetryTests(test.DefaultRetryCodes()) {
 		actual, _ := notifier.retrier.Check(statusCode, nil)
-		require.Equal(t, expected, actual, fmt.Sprintf("retry - error on status %d", statusCode))
+		require.Equalf(t, expected, actual, "retry - error on status %d", statusCode)
 	}
 }
 
@@ -122,8 +121,7 @@ func TestDiscordTemplating(t *testing.T) {
 			if tc.errMsg == "" {
 				require.NoError(t, err)
 			} else {
-				require.Error(t, err)
-				require.Contains(t, err.Error(), tc.errMsg)
+				require.ErrorContains(t, err, tc.errMsg)
 			}
 			require.Equal(t, tc.retry, ok)
 		})
@@ -229,5 +227,5 @@ func TestDiscord_Notify(t *testing.T) {
 	require.NoError(t, err)
 	require.False(t, ok)
 
-	require.Equal(t, "{\"content\":\"Test Content\",\"embeds\":[{\"title\":\"Test Title\",\"description\":\"Test Message\",\"color\":10038562}],\"username\":\"Test Username\",\"avatar_url\":\"http://example.com/avatar.png\"}\n", resp)
+	require.JSONEq(t, "{\"content\":\"Test Content\",\"embeds\":[{\"title\":\"Test Title\",\"description\":\"Test Message\",\"color\":10038562}],\"username\":\"Test Username\",\"avatar_url\":\"http://example.com/avatar.png\"}\n", resp)
 }

notify/email/email_test.go

@@ -319,8 +319,7 @@ func TestEmailNotifyWithErrors(t *testing.T) {
 			}
 
 			_, retry, err := notifyEmail(emailCfg, c.Server)
-			require.Error(t, err)
-			require.Contains(t, err.Error(), tc.errMsg)
+			require.ErrorContains(t, err, tc.errMsg)
 			require.False(t, retry)
 
 			e, err := c.Server.getLastEmail()
@@ -359,8 +358,7 @@ func TestEmailNotifyWithDoneContext(t *testing.T) {
 		},
 		c.Server,
 	)
-	require.Error(t, err)
-	require.Contains(t, err.Error(), "establish connection to server")
+	require.ErrorContains(t, err, "establish connection to server")
 }
 
 // TestEmailNotifyWithoutAuthentication sends an email to an instance of
@@ -589,8 +587,7 @@ func TestEmailNotifyWithAuthentication(t *testing.T) {
 
 			e, retry, err := notifyEmail(emailCfg, c.Server)
 			if len(tc.errMsg) > 0 {
-				require.Error(t, err)
-				require.Contains(t, err.Error(), tc.errMsg)
+				require.ErrorContains(t, err, tc.errMsg)
 				require.Equal(t, tc.retry, retry)
 				return
 			}

notify/jira/jira_test.go

@@ -16,7 +16,6 @@ package jira
 import (
 	"context"
 	"encoding/json"
-	"fmt"
 	"io"
 	"net/http"
 	"net/http/httptest"
@@ -58,7 +57,7 @@ func TestJiraRetry(t *testing.T) {
 
 	for statusCode, expected := range test.RetryTests(retryCodes) {
 		actual, _ := notifier.retrier.Check(statusCode, nil)
-		require.Equal(t, expected, actual, fmt.Sprintf("retry - error on status %d", statusCode))
+		require.Equalf(t, expected, actual, "retry - error on status %d", statusCode)
 	}
 }
 
@@ -145,8 +144,7 @@ func TestJiraTemplating(t *testing.T) {
 			if tc.errMsg == "" {
 				require.NoError(t, err)
 			} else {
-				require.Error(t, err)
-				require.Contains(t, err.Error(), tc.errMsg)
+				require.ErrorContains(t, err, tc.errMsg)
 			}
 			require.Equal(t, tc.retry, ok)
 		})

notify/msteams/msteams_test.go

@@ -16,7 +16,6 @@ package msteams
 import (
 	"context"
 	"encoding/json"
-	"fmt"
 	"io"
 	"net/http"
 	"net/http/httptest"
@@ -52,7 +51,7 @@ func TestMSTeamsRetry(t *testing.T) {
 
 	for statusCode, expected := range test.RetryTests(test.DefaultRetryCodes()) {
 		actual, _ := notifier.retrier.Check(statusCode, nil)
-		require.Equal(t, expected, actual, fmt.Sprintf("retry - error on status %d", statusCode))
+		require.Equalf(t, expected, actual, "retry - error on status %d", statusCode)
 	}
 }
 
@@ -132,8 +131,7 @@ func TestMSTeamsTemplating(t *testing.T) {
 			if tc.errMsg == "" {
 				require.NoError(t, err)
 			} else {
-				require.Error(t, err)
-				require.Contains(t, err.Error(), tc.errMsg)
+				require.ErrorContains(t, err, tc.errMsg)
 			}
 			require.Equal(t, tc.retry, ok)
 		})

notify/msteamsv2/msteamsv2_test.go

@@ -16,7 +16,6 @@ package msteamsv2
 import (
 	"context"
 	"encoding/json"
-	"fmt"
 	"io"
 	"net/http"
 	"net/http/httptest"
@@ -52,7 +51,7 @@ func TestMSTeamsV2Retry(t *testing.T) {
 
 	for statusCode, expected := range test.RetryTests(test.DefaultRetryCodes()) {
 		actual, _ := notifier.retrier.Check(statusCode, nil)
-		require.Equal(t, expected, actual, fmt.Sprintf("retry - error on status %d", statusCode))
+		require.Equalf(t, expected, actual, "retry - error on status %d", statusCode)
 	}
 }
 
@@ -176,8 +175,7 @@ func TestMSTeamsV2Templating(t *testing.T) {
 			if tc.errMsg == "" {
 				require.NoError(t, err)
 			} else {
-				require.Error(t, err)
-				require.Contains(t, err.Error(), tc.errMsg)
+				require.ErrorContains(t, err, tc.errMsg)
 			}
 			require.Equal(t, tc.retry, ok)
 		})

notify/notify_test.go

@@ -268,7 +268,7 @@ func TestDedupStage(t *testing.T) {
 		},
 	}
 	ctx, _, err = s.Exec(ctx, promslog.NewNopLogger(), alerts...)
-	require.Contains(t, err.Error(), "result size")
+	require.ErrorContains(t, err, "result size")
 
 	// Must return no error and no alerts no need to update.
 	i = 0

notify/opsgenie/opsgenie_test.go

@@ -47,7 +47,7 @@ func TestOpsGenieRetry(t *testing.T) {
 	retryCodes := append(test.DefaultRetryCodes(), http.StatusTooManyRequests)
 	for statusCode, expected := range test.RetryTests(retryCodes) {
 		actual, _ := notifier.retrier.Check(statusCode, nil)
-		require.Equal(t, expected, actual, fmt.Sprintf("error on status %d", statusCode))
+		require.Equalf(t, expected, actual, "error on status %d", statusCode)
 	}
 }
 
@@ -314,10 +314,10 @@ func TestOpsGenieWithUpdate(t *testing.T) {
 	require.NotEmpty(t, body0)
 
 	require.Equal(t, requests[1].URL.String(), fmt.Sprintf("https://test-opsgenie-url/v2/alerts/%s/message?identifierType=alias", alias))
-	require.Equal(t, `{"message":"new message"}
+	require.JSONEq(t, `{"message":"new message"}
 `, body1)
 	require.Equal(t, requests[2].URL.String(), fmt.Sprintf("https://test-opsgenie-url/v2/alerts/%s/description?identifierType=alias", alias))
-	require.Equal(t, `{"description":"new description"}
+	require.JSONEq(t, `{"description":"new description"}
 `, body2)
 }
 

notify/pagerduty/pagerduty_test.go

@@ -17,7 +17,6 @@ import (
 	"bytes"
 	"context"
 	"encoding/json"
-	"fmt"
 	"io"
 	"net/http"
 	"net/http/httptest"
@@ -52,7 +51,7 @@ func TestPagerDutyRetryV1(t *testing.T) {
 	retryCodes := append(test.DefaultRetryCodes(), http.StatusForbidden)
 	for statusCode, expected := range test.RetryTests(retryCodes) {
 		actual, _ := notifier.retrier.Check(statusCode, nil)
-		require.Equal(t, expected, actual, fmt.Sprintf("retryv1 - error on status %d", statusCode))
+		require.Equalf(t, expected, actual, "retryv1 - error on status %d", statusCode)
 	}
 }
 
@@ -70,7 +69,7 @@ func TestPagerDutyRetryV2(t *testing.T) {
 	retryCodes := append(test.DefaultRetryCodes(), http.StatusTooManyRequests)
 	for statusCode, expected := range test.RetryTests(retryCodes) {
 		actual, _ := notifier.retrier.Check(statusCode, nil)
-		require.Equal(t, expected, actual, fmt.Sprintf("retryv2 - error on status %d", statusCode))
+		require.Equalf(t, expected, actual, "retryv2 - error on status %d", statusCode)
 	}
 }
 
@@ -274,8 +273,7 @@ func TestPagerDutyTemplating(t *testing.T) {
 			if tc.errMsg == "" {
 				require.NoError(t, err)
 			} else {
-				require.Error(t, err)
-				require.Contains(t, err.Error(), tc.errMsg)
+				require.ErrorContains(t, err, tc.errMsg)
 			}
 			require.Equal(t, tc.retry, ok)
 		})

notify/pushover/pushover_test.go

@@ -14,7 +14,6 @@
 package pushover
 
 import (
-	"fmt"
 	"os"
 	"testing"
 
@@ -37,7 +36,7 @@ func TestPushoverRetry(t *testing.T) {
 	require.NoError(t, err)
 	for statusCode, expected := range test.RetryTests(test.DefaultRetryCodes()) {
 		actual, _ := notifier.retrier.Check(statusCode, nil)
-		require.Equal(t, expected, actual, fmt.Sprintf("error on status %d", statusCode))
+		require.Equalf(t, expected, actual, "error on status %d", statusCode)
 	}
 }
 

notify/rocketchat/rocketchat_test.go

@@ -14,7 +14,6 @@
 package rocketchat
 
 import (
-	"fmt"
 	"net/url"
 	"os"
 	"testing"
@@ -42,7 +41,7 @@ func TestRocketchatRetry(t *testing.T) {
 
 	for statusCode, expected := range test.RetryTests(test.DefaultRetryCodes()) {
 		actual, _ := notifier.retrier.Check(statusCode, nil)
-		require.Equal(t, expected, actual, fmt.Sprintf("error on status %d", statusCode))
+		require.Equalf(t, expected, actual, "error on status %d", statusCode)
 	}
 }
 

notify/slack/slack_test.go

@@ -15,7 +15,6 @@ package slack
 
 import (
 	"context"
-	"fmt"
 	"io"
 	"net/http"
 	"net/http/httptest"
@@ -48,7 +47,7 @@ func TestSlackRetry(t *testing.T) {
 
 	for statusCode, expected := range test.RetryTests(test.DefaultRetryCodes()) {
 		actual, _ := notifier.retrier.Check(statusCode, nil)
-		require.Equal(t, expected, actual, fmt.Sprintf("error on status %d", statusCode))
+		require.Equalf(t, expected, actual, "error on status %d", statusCode)
 	}
 }
 
@@ -229,8 +228,8 @@ func TestNotifier_Notify_WithReason(t *testing.T) {
 				var reasonError *notify.ErrorWithReason
 				require.ErrorAs(t, err, &reasonError)
 				require.Equal(t, tt.expectedReason, reasonError.Reason)
-				require.Contains(t, err.Error(), tt.expectedErr)
-				require.Contains(t, err.Error(), "channelname")
+				require.ErrorContains(t, err, tt.expectedErr)
+				require.ErrorContains(t, err, "channelname")
 			}
 		})
 	}

notify/sns/sns_test.go

@@ -16,7 +16,6 @@ package sns
 import (
 	"context"
 	"net/url"
-	"strings"
 	"testing"
 
 	commoncfg "github.com/prometheus/common/config"
@@ -134,9 +133,8 @@ func TestNotifyWithInvalidTemplate(t *testing.T) {
 			require.NoError(t, err)
 			var alerts []*types.Alert
 			_, err = notifier.Notify(context.Background(), alerts...)
-			require.Error(t, err)
-			require.True(t, strings.Contains(err.Error(), "template \"unknown_template\" not defined"))
-			require.True(t, strings.Contains(err.Error(), tc.errMsg))
+			require.ErrorContains(t, err, "template \"unknown_template\" not defined")
+			require.ErrorContains(t, err, tc.errMsg)
 		})
 	}
 }

notify/telegram/telegram_test.go

@@ -16,7 +16,6 @@ package telegram
 import (
 	"context"
 	"encoding/json"
-	"fmt"
 	"io"
 	"net/http"
 	"net/http/httptest"
@@ -82,7 +81,7 @@ func TestTelegramRetry(t *testing.T) {
 
 	for statusCode, expected := range test.RetryTests(test.DefaultRetryCodes()) {
 		actual, _ := notifier.retrier.Check(statusCode, nil)
-		require.Equal(t, expected, actual, fmt.Sprintf("error on status %d", statusCode))
+		require.Equalf(t, expected, actual, "error on status %d", statusCode)
 	}
 }
 

notify/test/test.go

@@ -154,8 +154,7 @@ func AssertNotifyLeaksNoSecret(ctx context.Context, t *testing.T, n notify.Notif
 		},
 	}...)
 
-	require.Error(t, err)
-	require.Contains(t, err.Error(), context.Canceled.Error())
+	require.ErrorContains(t, err, context.Canceled.Error())
 	for _, s := range secret {
 		require.NotContains(t, err.Error(), s)
 	}