feat: implement rule engine, worker pool, event bus, and readability scraping with enhanced logging and content sanitization.

internal/rules/rules_test.go

@@ -0,0 +1,70 @@
+package rules
+
+import (
+	"testing"
+	"time"
+
+	"git.pengzhan.dev/haopengzhan/rsspipe/internal/models"
+)
+
+func TestRuleEvaluator(t *testing.T) {
+	eval := NewEvaluator()
+
+	entry := models.FeedEntry{
+		ID:        "entry-1",
+		FeedID:    "feed-hn",
+		FeedTitle: "Hacker News",
+		Title:     "Announcing Go 1.24 Release",
+		Author:    "Go Team",
+		Content:   "<p>Go 1.24 brings new features...</p>",
+		Variants: map[string]models.EntryVariant{
+			"keywords": {
+				EntryID:     "entry-1",
+				VariantKey:  "keywords",
+				ContentType: "json",
+				TextValue:   `["go", "compiler", "release"]`,
+			},
+		},
+		PublishedAt: time.Now(),
+	}
+
+	// Test 1: Title contains Go AND FeedID == feed-hn
+	rule1 := models.Rule{
+		ID:        "r1",
+		Name:      "Tech Feeds",
+		MatchMode: "all",
+		Conditions: []models.RuleCondition{
+			{Field: "feed_id", Operator: "eq", Value: "feed-hn"},
+			{Field: "title", Operator: "contains", Value: "Go 1.24"},
+		},
+	}
+	if !eval.Evaluate(rule1, entry) {
+		t.Error("expected rule1 to match entry")
+	}
+
+	// Test 2: Negative condition (author != Python Team)
+	rule2 := models.Rule{
+		ID:        "r2",
+		Name:      "Author check",
+		MatchMode: "all",
+		Conditions: []models.RuleCondition{
+			{Field: "author", Operator: "neq", Value: "Python Team"},
+		},
+	}
+	if !eval.Evaluate(rule2, entry) {
+		t.Error("expected rule2 to match entry")
+	}
+
+	// Test 3: Variant matching (variants.keywords contains compiler)
+	rule3 := models.Rule{
+		ID:        "r3",
+		Name:      "Keywords check",
+		MatchMode: "all",
+		Conditions: []models.RuleCondition{
+			{Field: "variants.keywords", Operator: "contains", Value: "compiler"},
+		},
+	}
+	if !eval.Evaluate(rule3, entry) {
+		t.Error("expected rule3 to match entry variant")
+	}
+}