Move internal packages to an internal folder

For reference: https://go.dev/doc/go1.4#internalpackages

internal/model/feed_test.go

@@ -0,0 +1,154 @@
+// SPDX-FileCopyrightText: Copyright The Miniflux Authors. All rights reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+package model // import "miniflux.app/v2/internal/model"
+
+import (
+	"fmt"
+	"os"
+	"testing"
+	"time"
+
+	"miniflux.app/v2/internal/config"
+	"miniflux.app/v2/internal/http/client"
+)
+
+func TestFeedWithResponse(t *testing.T) {
+	response := &client.Response{ETag: "Some etag", LastModified: "Some date", EffectiveURL: "Some URL"}
+
+	feed := &Feed{}
+	feed.WithClientResponse(response)
+
+	if feed.EtagHeader != "Some etag" {
+		t.Fatal(`The ETag header should be set`)
+	}
+
+	if feed.LastModifiedHeader != "Some date" {
+		t.Fatal(`The LastModified header should be set`)
+	}
+
+	if feed.FeedURL != "Some URL" {
+		t.Fatal(`The Feed URL should be set`)
+	}
+}
+
+func TestFeedCategorySetter(t *testing.T) {
+	feed := &Feed{}
+	feed.WithCategoryID(int64(123))
+
+	if feed.Category == nil {
+		t.Fatal(`The category field should not be null`)
+	}
+
+	if feed.Category.ID != int64(123) {
+		t.Error(`The category ID must be set`)
+	}
+}
+
+func TestFeedErrorCounter(t *testing.T) {
+	feed := &Feed{}
+	feed.WithError("Some Error")
+
+	if feed.ParsingErrorMsg != "Some Error" {
+		t.Error(`The error message must be set`)
+	}
+
+	if feed.ParsingErrorCount != 1 {
+		t.Error(`The error counter must be set to 1`)
+	}
+
+	feed.ResetErrorCounter()
+
+	if feed.ParsingErrorMsg != "" {
+		t.Error(`The error message must be removed`)
+	}
+
+	if feed.ParsingErrorCount != 0 {
+		t.Error(`The error counter must be set to 0`)
+	}
+}
+
+func TestFeedCheckedNow(t *testing.T) {
+	feed := &Feed{}
+	feed.FeedURL = "https://example.org/feed"
+	feed.CheckedNow()
+
+	if feed.SiteURL != feed.FeedURL {
+		t.Error(`The site URL must not be empty`)
+	}
+
+	if feed.CheckedAt.IsZero() {
+		t.Error(`The checked date must be set`)
+	}
+}
+
+func TestFeedScheduleNextCheckDefault(t *testing.T) {
+	var err error
+	parser := config.NewParser()
+	config.Opts, err = parser.ParseEnvironmentVariables()
+	if err != nil {
+		t.Fatalf(`Parsing failure: %v`, err)
+	}
+
+	feed := &Feed{}
+	weeklyCount := 10
+	feed.ScheduleNextCheck(weeklyCount)
+
+	if feed.NextCheckAt.IsZero() {
+		t.Error(`The next_check_at must be set`)
+	}
+}
+
+func TestFeedScheduleNextCheckEntryCountBasedMaxInterval(t *testing.T) {
+	maxInterval := 5
+	minInterval := 1
+	os.Clearenv()
+	os.Setenv("POLLING_SCHEDULER", "entry_frequency")
+	os.Setenv("SCHEDULER_ENTRY_FREQUENCY_MAX_INTERVAL", fmt.Sprintf("%d", maxInterval))
+	os.Setenv("SCHEDULER_ENTRY_FREQUENCY_MIN_INTERVAL", fmt.Sprintf("%d", minInterval))
+
+	var err error
+	parser := config.NewParser()
+	config.Opts, err = parser.ParseEnvironmentVariables()
+	if err != nil {
+		t.Fatalf(`Parsing failure: %v`, err)
+	}
+	feed := &Feed{}
+	weeklyCount := maxInterval * 100
+	feed.ScheduleNextCheck(weeklyCount)
+
+	if feed.NextCheckAt.IsZero() {
+		t.Error(`The next_check_at must be set`)
+	}
+
+	if feed.NextCheckAt.After(time.Now().Add(time.Minute * time.Duration(maxInterval))) {
+		t.Error(`The next_check_at should not be after the now + max interval`)
+	}
+}
+
+func TestFeedScheduleNextCheckEntryCountBasedMinInterval(t *testing.T) {
+	maxInterval := 500
+	minInterval := 100
+	os.Clearenv()
+	os.Setenv("POLLING_SCHEDULER", "entry_frequency")
+	os.Setenv("SCHEDULER_ENTRY_FREQUENCY_MAX_INTERVAL", fmt.Sprintf("%d", maxInterval))
+	os.Setenv("SCHEDULER_ENTRY_FREQUENCY_MIN_INTERVAL", fmt.Sprintf("%d", minInterval))
+
+	var err error
+	parser := config.NewParser()
+	config.Opts, err = parser.ParseEnvironmentVariables()
+	if err != nil {
+		t.Fatalf(`Parsing failure: %v`, err)
+	}
+	feed := &Feed{}
+	weeklyCount := minInterval / 2
+	feed.ScheduleNextCheck(weeklyCount)
+
+	if feed.NextCheckAt.IsZero() {
+		t.Error(`The next_check_at must be set`)
+	}
+
+	if feed.NextCheckAt.Before(time.Now().Add(time.Minute * time.Duration(minInterval))) {
+		t.Error(`The next_check_at should not be before the now + min interval`)
+	}
+}