add regression test suite

.gitignore

@@ -1,9 +1,10 @@
 paisa.db
-paisa.yaml
+/paisa.yaml
 /paisa
+/sample
 web/static
-example.ledger
-main.ledger
+/example.ledger
+/main.ledger
 .DS_Store
 node_modules
 /build
@@ -18,3 +19,4 @@ vite.config.ts.timestamp-*
 *.test
 docs/lexer/__pycache__/
 bun.lockb
+svg/*

Makefile

@@ -22,8 +22,16 @@ lint:
 	npm run check
 	test -z $$(gofmt -l .)
 
-test:
-	npm run test
+regen:
+	go build
+	REGENERATE=true TZ=UTC bun test tests
+
+jstest:
+	bun test --preload ./src/happydom.ts src
+	go build
+	TZ=UTC bun test tests
+
+test: jstest
 	npm run build
 	go test ./...
 

internal/server/expense.go

@@ -1,6 +1,7 @@
 package server
 
 import (
+	"sort"
 	"strings"
 
 	"github.com/ananthakumaran/paisa/internal/model/posting"
@@ -49,8 +50,8 @@ func GetExpense(db *gorm.DB) gin.H {
 	graph := make(map[string]map[string]Graph)
 	for fy, ps := range utils.GroupByFY(postings) {
 		graph[fy] = make(map[string]Graph)
-		graph[fy]["flat"] = computeGraph(ps)
-		graph[fy]["hierarchy"] = computeHierarchyGraph(ps)
+		graph[fy]["flat"] = sortGraph(computeGraph(ps))
+		graph[fy]["hierarchy"] = sortGraph(computeHierarchyGraph(ps))
 	}
 
 	return gin.H{
@@ -68,6 +69,23 @@ func GetExpense(db *gorm.DB) gin.H {
 		"graph": graph}
 }
 
+func sortGraph(graph Graph) Graph {
+	nodes := graph.Nodes
+	sort.Slice(nodes, func(i, j int) bool {
+		return graph.Nodes[i].Name < graph.Nodes[j].Name
+	})
+
+	links := graph.Links
+	sort.Slice(links, func(i, j int) bool {
+		return graph.Links[i].Source < graph.Links[j].Source || (graph.Links[i].Source == graph.Links[j].Source && graph.Links[i].Target < graph.Links[j].Target)
+	})
+	return Graph{
+		Nodes: nodes,
+		Links: links,
+	}
+
+}
+
 func computeGraph(postings []posting.Posting) Graph {
 	nodes := make(map[string]Node)
 	links := make(map[Pair]decimal.Decimal)