client/secret: use gotest.tools-style asserts

Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>

client/secret_create_test.go

@@ -60,10 +60,6 @@ func TestSecretCreate(t *testing.T) {
 	}
 
 	r, err := client.SecretCreate(context.Background(), swarm.SecretSpec{})
-	if err != nil {
-		t.Fatal(err)
-	}
-	if r.ID != "test_secret" {
-		t.Fatalf("expected `test_secret`, got %s", r.ID)
-	}
+	assert.NilError(t, err)
+	assert.Check(t, is.Equal(r.ID, "test_secret"))
 }

client/secret_inspect_test.go

@@ -83,10 +83,6 @@ func TestSecretInspect(t *testing.T) {
 	}
 
 	secretInspect, _, err := client.SecretInspectWithRaw(context.Background(), "secret_id")
-	if err != nil {
-		t.Fatal(err)
-	}
-	if secretInspect.ID != "secret_id" {
-		t.Fatalf("expected `secret_id`, got %s", secretInspect.ID)
-	}
+	assert.NilError(t, err)
+	assert.Check(t, is.Equal(secretInspect.ID, "secret_id"))
 }

client/secret_list_test.go

@@ -95,11 +95,7 @@ func TestSecretList(t *testing.T) {
 		}
 
 		secrets, err := client.SecretList(context.Background(), listCase.options)
-		if err != nil {
-			t.Fatal(err)
-		}
-		if len(secrets) != 2 {
-			t.Fatalf("expected 2 secrets, got %v", secrets)
-		}
+		assert.NilError(t, err)
+		assert.Check(t, is.Len(secrets, 2))
 	}
 }

client/secret_remove_test.go

@@ -61,7 +61,5 @@ func TestSecretRemove(t *testing.T) {
 	}
 
 	err := client.SecretRemove(context.Background(), "secret_id")
-	if err != nil {
-		t.Fatal(err)
-	}
+	assert.NilError(t, err)
 }

client/secret_update_test.go

@@ -62,7 +62,5 @@ func TestSecretUpdate(t *testing.T) {
 	}
 
 	err := client.SecretUpdate(context.Background(), "secret_id", swarm.Version{}, swarm.SecretSpec{})
-	if err != nil {
-		t.Fatal(err)
-	}
+	assert.NilError(t, err)
 }