Start adding tests

pkg/eia/eia_test.go

@@ -0,0 +1,67 @@
+package eia
+
+import (
+	"reflect"
+	"testing"
+)
+
+func TestNewFacets(t *testing.T) {
+	type args struct {
+		facets []*Facet
+	}
+	tests := []struct {
+		name string
+		args args
+		want map[string]interface{}
+	}{
+		{
+			name: "Empty facets",
+			args: args{facets: []*Facet{}},
+			want: map[string]interface{}{},
+		},
+		{
+			name: "Single facet",
+			args: args{
+				facets: []*Facet{
+					{Name: "seriesId", Data: "Region1"},
+				},
+			},
+			want: map[string]interface{}{
+				"facets[seriesId][0]": "Region1",
+			},
+		},
+		{
+			name: "Multiple facets with unique names",
+			args: args{
+				facets: []*Facet{
+					{Name: "seriesId", Data: "Region1"},
+					{Name: "scenario", Data: "low-gdp"},
+				},
+			},
+			want: map[string]interface{}{
+				"facets[seriesId][0]": "Region1",
+				"facets[scenario][0]": "low-gdp",
+			},
+		},
+		{
+			name: "Multiple facets with duplicate names",
+			args: args{
+				facets: []*Facet{
+					{Name: "scenario", Data: "low-gdp"},
+					{Name: "scenario", Data: "high-gdp"},
+				},
+			},
+			want: map[string]interface{}{
+				"facets[scenario][0]": "low-gdp",
+				"facets[scenario][1]": "high-gdp",
+			},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := NewFacets(tt.args.facets...); !reflect.DeepEqual(*got, tt.want) {
+				t.Errorf("NewFacets() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}