Code cleanup; Implement persistant storage; Use maps for storage

parsers/nosql/select_test.go

@@ -0,0 +1,104 @@
+package nosql_test
+
+import (
+	"testing"
+
+	"github.com/pikami/cosmium/parsers"
+)
+
+func Test_Parse_Select(t *testing.T) {
+
+	t.Run("Should parse simple SELECT", func(t *testing.T) {
+		testQueryParse(
+			t,
+			`SELECT c.id, c["pk"] FROM c`,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{Path: []string{"c", "id"}},
+					{Path: []string{"c", "pk"}},
+				},
+				Table: parsers.Table{Value: "c"},
+			},
+		)
+	})
+
+	t.Run("Should parse SELECT TOP", func(t *testing.T) {
+		testQueryParse(
+			t,
+			`SELECT TOP 1 c.id FROM c`,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{Path: []string{"c", "id"}},
+				},
+				Table: parsers.Table{Value: "c"},
+				Count: 1,
+			},
+		)
+	})
+
+	t.Run("Should parse SELECT VALUE", func(t *testing.T) {
+		testQueryParse(
+			t,
+			`SELECT VALUE c.id FROM c`,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{Path: []string{"c", "id"}, IsTopLevel: true},
+				},
+				Table: parsers.Table{Value: "c"},
+			},
+		)
+	})
+
+	t.Run("Should parse SELECT *", func(t *testing.T) {
+		testQueryParse(
+			t,
+			`SELECT * FROM c`,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{Path: []string{"c"}, IsTopLevel: true},
+				},
+				Table: parsers.Table{Value: "c"},
+			},
+		)
+	})
+
+	t.Run("Should parse SELECT array", func(t *testing.T) {
+		testQueryParse(
+			t,
+			`SELECT [c.id, c.pk] as arr FROM c`,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{
+						Alias: "arr",
+						Type:  parsers.SelectItemTypeArray,
+						SelectItems: []parsers.SelectItem{
+							{Path: []string{"c", "id"}},
+							{Path: []string{"c", "pk"}},
+						},
+					},
+				},
+				Table: parsers.Table{Value: "c"},
+			},
+		)
+	})
+
+	t.Run("Should parse SELECT object", func(t *testing.T) {
+		testQueryParse(
+			t,
+			`SELECT { id: c.id, _pk: c.pk } AS obj FROM c`,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{
+						Alias: "obj",
+						Type:  parsers.SelectItemTypeObject,
+						SelectItems: []parsers.SelectItem{
+							{Alias: "id", Path: []string{"c", "id"}},
+							{Alias: "_pk", Path: []string{"c", "pk"}},
+						},
+					},
+				},
+				Table: parsers.Table{Value: "c"},
+			},
+		)
+	})
+}