lint: enable testifylint

.github/workflows/ci-test-go.yml

@@ -75,7 +75,7 @@ jobs:
         uses: golangci/golangci-lint-action@3a919529898de77ec3da873e3063ca4b10e7f5cc # v3
         with:
           # Optional: version of golangci-lint to use in form of v1.2 or v1.2.3 or `latest` to use the latest version
-          version: v1.54.1
+          version: v1.55.2
           # Optional: working directory, useful for monorepos
           working-directory: ${{ inputs.project-directory }}
           # Optional: golangci-lint command line arguments.

.golangci.yml

@@ -6,6 +6,7 @@ linters:
     - gofumpt
     - misspell
     - nonamedreturns
+    - testifylint
 
 linters-settings:
   errorlint:
@@ -23,5 +24,20 @@ linters-settings:
       - standard
       - default
       - prefix(github.com/testcontainers)
+  testifylint:
+    disable:
+      - compares
+      - float-compare
+      - go-require
+    enable:
+      - bool-compare
+      - empty
+      - error-is-as
+      - error-nil
+      - expected-actual
+      - len
+      - require-error
+      - suite-dont-use-pkg
+      - suite-extra-assert-call
 run:
   timeout: 5m

docker_auth_test.go

@@ -29,14 +29,14 @@ func TestGetDockerConfig(t *testing.T) {
 	// Verify that the default docker config file exists before any test in this suite runs.
 	// Then, we can safely run the tests that rely on it.
 	defaultCfg, err := dockercfg.LoadDefaultConfig()
-	require.Nil(t, err)
+	require.NoError(t, err)
 	require.NotEmpty(t, defaultCfg)
 
 	t.Run("without DOCKER_CONFIG env var retrieves default", func(t *testing.T) {
 		t.Setenv("DOCKER_CONFIG", "")
 
 		cfg, err := getDockerConfig()
-		require.Nil(t, err)
+		require.NoError(t, err)
 		require.NotEmpty(t, cfg)
 
 		assert.Equal(t, defaultCfg, cfg)
@@ -46,18 +46,18 @@ func TestGetDockerConfig(t *testing.T) {
 		t.Setenv("DOCKER_CONFIG", filepath.Join(testDockerConfigDirPath, "non-existing"))
 
 		cfg, err := getDockerConfig()
-		require.NotNil(t, err)
+		require.Error(t, err)
 		require.Empty(t, cfg)
 	})
 
 	t.Run("with DOCKER_CONFIG env var", func(t *testing.T) {
 		t.Setenv("DOCKER_CONFIG", testDockerConfigDirPath)
 
 		cfg, err := getDockerConfig()
-		require.Nil(t, err)
+		require.NoError(t, err)
 		require.NotEmpty(t, cfg)
 
-		assert.Equal(t, 3, len(cfg.AuthConfigs))
+		assert.Len(t, cfg.AuthConfigs, 3)
 
 		authCfgs := cfg.AuthConfigs
 
@@ -82,10 +82,10 @@ func TestGetDockerConfig(t *testing.T) {
 		t.Setenv("DOCKER_CONFIG", testDockerConfigDirPath)
 
 		cfg, err := getDockerConfig()
-		require.Nil(t, err)
+		require.NoError(t, err)
 		require.NotEmpty(t, cfg)
 
-		assert.Equal(t, 1, len(cfg.AuthConfigs))
+		assert.Len(t, cfg.AuthConfigs, 1)
 
 		authCfgs := cfg.AuthConfigs
 
@@ -108,7 +108,7 @@ func TestGetDockerConfig(t *testing.T) {
 		}`)
 
 		registry, cfg, err := DockerImageAuth(context.Background(), exampleAuth+"/my/image:latest")
-		require.Nil(t, err)
+		require.NoError(t, err)
 		require.NotEmpty(t, cfg)
 
 		assert.Equal(t, exampleAuth, registry)
@@ -130,7 +130,7 @@ func TestGetDockerConfig(t *testing.T) {
 		}`)
 
 		registry, cfg, err := DockerImageAuth(context.Background(), imageReg+imagePath)
-		require.Nil(t, err)
+		require.NoError(t, err)
 		require.NotEmpty(t, cfg)
 
 		assert.Equal(t, imageReg, registry)
@@ -277,14 +277,14 @@ func TestCreateContainerFromPrivateRegistry(t *testing.T) {
 		ContainerRequest: req,
 		Started:          true,
 	})
-	require.Nil(t, err)
+	require.NoError(t, err)
 	terminateContainerOnEnd(t, ctx, redisContainer)
 }
 
 func prepareLocalRegistryWithAuth(t *testing.T) {
 	ctx := context.Background()
 	wd, err := os.Getwd()
-	assert.NoError(t, err)
+	require.NoError(t, err)
 	// copyDirectoryToContainer {
 	req := ContainerRequest{
 		Image:        "registry:2",
@@ -316,13 +316,13 @@ func prepareLocalRegistryWithAuth(t *testing.T) {
 	}
 
 	registryC, err := GenericContainer(ctx, genContainerReq)
-	assert.NoError(t, err)
+	require.NoError(t, err)
 
 	t.Cleanup(func() {
 		removeImageFromLocalCache(t, "localhost:5001/redis:5.0-alpine")
 	})
 	t.Cleanup(func() {
-		assert.NoError(t, registryC.Terminate(context.Background()))
+		require.NoError(t, registryC.Terminate(context.Background()))
 	})
 
 	_, cancel := context.WithCancel(context.Background())

docker_test.go

@@ -299,7 +299,7 @@ func TestContainerStateAfterTermination(t *testing.T) {
 		}
 
 		state, err := nginx.State(ctx)
-		assert.Error(t, err, "expected error from container inspect.")
+		require.Error(t, err, "expected error from container inspect.")
 
 		assert.Nil(t, state, "expected nil container inspect.")
 	})
@@ -312,7 +312,7 @@ func TestContainerStateAfterTermination(t *testing.T) {
 		}
 
 		state, err := nginx.State(ctx)
-		assert.NoError(t, err, "unexpected error from container inspect before container termination.")
+		require.NoError(t, err, "unexpected error from container inspect before container termination.")
 
 		assert.NotNil(t, state, "unexpected nil container inspect before container termination.")
 
@@ -323,7 +323,7 @@ func TestContainerStateAfterTermination(t *testing.T) {
 		}
 
 		state, err = nginx.State(ctx)
-		assert.Error(t, err, "expected error from container inspect after container termination.")
+		require.Error(t, err, "expected error from container inspect after container termination.")
 
 		assert.NotNil(t, state, "unexpected nil container inspect after container termination.")
 	})
@@ -1261,7 +1261,7 @@ func TestContainerCustomPlatformImage(t *testing.T) {
 
 		terminateContainerOnEnd(t, ctx, c)
 
-		assert.Error(t, err)
+		require.Error(t, err)
 	})
 
 	t.Run("specific platform should be propagated", func(t *testing.T) {
@@ -1285,10 +1285,10 @@ func TestContainerCustomPlatformImage(t *testing.T) {
 		defer dockerCli.Close()
 
 		ctr, err := dockerCli.ContainerInspect(ctx, c.GetContainerID())
-		assert.NoError(t, err)
+		require.NoError(t, err)
 
 		img, _, err := dockerCli.ImageInspectWithRaw(ctx, ctr.Image)
-		assert.NoError(t, err)
+		require.NoError(t, err)
 		assert.Equal(t, "linux", img.Os)
 		assert.Equal(t, "amd64", img.Architecture)
 	})
@@ -1478,7 +1478,7 @@ func TestDockerCreateContainerWithDirs(t *testing.T) {
 	hostDirName := "testdata"
 
 	abs, err := filepath.Abs(filepath.Join(".", hostDirName))
-	assert.Nil(t, err)
+	require.NoError(t, err)
 
 	tests := []struct {
 		name     string
@@ -1998,7 +1998,7 @@ func TestDockerProviderFindContainerByName(t *testing.T) {
 	terminateContainerOnEnd(t, ctx, c2)
 
 	c, err := provider.findContainerByName(ctx, "test")
-	assert.NoError(t, err)
+	require.NoError(t, err)
 	require.NotNil(t, c)
 	assert.Contains(t, c.Names, c1Name)
 }
@@ -2049,9 +2049,9 @@ func TestImageBuiltFromDockerfile_KeepBuiltImage(t *testing.T) {
 			require.NoError(t, err, "terminate container should not fail")
 			_, _, err = cli.ImageInspectWithRaw(ctx, containerImage)
 			if tt.keepBuiltImage {
-				assert.Nil(t, err, "image should still exist")
+				require.NoError(t, err, "image should still exist")
 			} else {
-				assert.NotNil(t, err, "image should not exist anymore")
+				require.Error(t, err, "image should not exist anymore")
 			}
 		})
 	}

file_test.go

@@ -44,9 +44,9 @@ func Test_IsDir(t *testing.T) {
 		t.Run(test.filepath, func(t *testing.T) {
 			result, err := isDir(test.filepath)
 			if test.err != nil {
-				assert.NotNil(t, err, "expected error")
+				require.Error(t, err, "expected error")
 			} else {
-				assert.Nil(t, err, "not expected error")
+				require.NoError(t, err, "not expected error")
 			}
 			assert.Equal(t, test.expected, result)
 		})
@@ -71,7 +71,7 @@ func Test_TarDir(t *testing.T) {
 			src := originalSrc
 			if test.abs {
 				absSrc, err := filepath.Abs(src)
-				require.Nil(t, err)
+				require.NoError(t, err)
 
 				src = absSrc
 			}

from_dockerfile_test.go

@@ -34,11 +34,11 @@ func TestBuildImageFromDockerfile(t *testing.T) {
 		},
 		// }
 	})
-	assert.Nil(t, err)
+	require.NoError(t, err)
 	assert.Equal(t, "test-repo:test-tag", tag)
 
 	_, _, err = cli.ImageInspectWithRaw(ctx, tag)
-	assert.Nil(t, err)
+	require.NoError(t, err)
 
 	t.Cleanup(func() {
 		_, err := cli.ImageRemove(ctx, tag, types.ImageRemoveOptions{
@@ -69,11 +69,11 @@ func TestBuildImageFromDockerfile_NoRepo(t *testing.T) {
 			Repo:       "test-repo",
 		},
 	})
-	assert.Nil(t, err)
+	require.NoError(t, err)
 	assert.True(t, strings.HasPrefix(tag, "test-repo:"))
 
 	_, _, err = cli.ImageInspectWithRaw(ctx, tag)
-	assert.Nil(t, err)
+	require.NoError(t, err)
 
 	t.Cleanup(func() {
 		_, err := cli.ImageRemove(ctx, tag, types.ImageRemoveOptions{
@@ -104,11 +104,11 @@ func TestBuildImageFromDockerfile_NoTag(t *testing.T) {
 			Tag:        "test-tag",
 		},
 	})
-	assert.Nil(t, err)
+	require.NoError(t, err)
 	assert.True(t, strings.HasSuffix(tag, ":test-tag"))
 
 	_, _, err = cli.ImageInspectWithRaw(ctx, tag)
-	assert.Nil(t, err)
+	require.NoError(t, err)
 
 	t.Cleanup(func() {
 		_, err := cli.ImageRemove(ctx, tag, types.ImageRemoveOptions{

internal/core/docker_host_test.go

@@ -146,7 +146,7 @@ func TestExtractDockerHost(t *testing.T) {
 			setupTestcontainersProperties(t, content)
 
 			socket, err := testcontainersHostFromProperties(context.Background())
-			require.Nil(t, err)
+			require.NoError(t, err)
 			assert.Equal(t, testRemoteHost, socket)
 		})
 
@@ -165,10 +165,10 @@ func TestExtractDockerHost(t *testing.T) {
 			tmpSocket := filepath.Join(tmpDir, "docker.sock")
 			t.Setenv("DOCKER_HOST", tmpSocket)
 			err := createTmpDockerSocket(tmpDir)
-			require.Nil(t, err)
+			require.NoError(t, err)
 
 			socket, err := dockerHostFromEnv(context.Background())
-			require.Nil(t, err)
+			require.NoError(t, err)
 			assert.Equal(t, tmpSocket, socket)
 		})
 
@@ -187,10 +187,10 @@ func TestExtractDockerHost(t *testing.T) {
 			tmpSocket := filepath.Join(tmpDir, "docker.sock")
 			t.Setenv("TESTCONTAINERS_DOCKER_SOCKET_OVERRIDE", tmpSocket)
 			err := createTmpDockerSocket(tmpDir)
-			require.Nil(t, err)
+			require.NoError(t, err)
 
 			socket, err := dockerSocketOverridePath(context.Background())
-			require.Nil(t, err)
+			require.NoError(t, err)
 			assert.Equal(t, tmpSocket, socket)
 		})
 
@@ -208,7 +208,7 @@ func TestExtractDockerHost(t *testing.T) {
 			ctx := context.Background()
 
 			socket, err := dockerHostFromContext(context.WithValue(ctx, DockerHostContextKey, DockerSocketSchema+"/this/is/a/sample.sock"))
-			require.Nil(t, err)
+			require.NoError(t, err)
 			assert.Equal(t, "/this/is/a/sample.sock", socket)
 		})
 
@@ -232,7 +232,7 @@ func TestExtractDockerHost(t *testing.T) {
 			tmpSocket := setupDockerSocket(t)
 
 			socket, err := dockerSocketPath(context.Background())
-			require.Nil(t, err)
+			require.NoError(t, err)
 			assert.Equal(t, tmpSocket, socket)
 		})
 
@@ -243,7 +243,7 @@ func TestExtractDockerHost(t *testing.T) {
 			setupTestcontainersProperties(t, content)
 
 			socket, err := dockerHostFromProperties(context.Background())
-			require.Nil(t, err)
+			require.NoError(t, err)
 			assert.Equal(t, tmpSocket, socket)
 		})
 
@@ -426,7 +426,7 @@ func TestInAContainer(t *testing.T) {
 		f := filepath.Join(tmpDir, ".dockerenv-b")
 
 		testFile, err := os.Create(f)
-		assert.NoError(t, err)
+		require.NoError(t, err)
 		defer testFile.Close()
 
 		assert.True(t, inAContainer(f))
@@ -472,7 +472,7 @@ func setupDockerSocket(t *testing.T) string {
 	tmpDir := t.TempDir()
 	tmpSocket := filepath.Join(tmpDir, "docker.sock")
 	err := createTmpDockerSocket(filepath.Dir(tmpSocket))
-	require.Nil(t, err)
+	require.NoError(t, err)
 
 	DockerSocketPath = tmpSocket
 	DockerSocketPathWithSchema = tmpSchema + tmpSocket
@@ -503,7 +503,7 @@ func setupTestcontainersProperties(t *testing.T, content string) {
 	tmpDir := t.TempDir()
 	homeDir := filepath.Join(tmpDir, "home")
 	err := createTmpDir(homeDir)
-	require.Nil(t, err)
+	require.NoError(t, err)
 	t.Setenv("HOME", homeDir)
 	t.Setenv("USERPROFILE", homeDir) // Windows support