diff --git a/test/operations/domains/alterDomain.spec.ts b/test/operations/domains/alterDomain.spec.ts
index b38bfcee..c71e11a0 100644
--- a/test/operations/domains/alterDomain.spec.ts
+++ b/test/operations/domains/alterDomain.spec.ts
@@ -3,72 +3,74 @@ import { alterDomain } from '../../../src/operations/domains';
 import { options1 } from '../../utils';
 
 describe('operations', () => {
-  describe('alterDomain', () => {
-    const alterDomainFn = alterDomain(options1);
+  describe('domains', () => {
+    describe('alterDomain', () => {
+      const alterDomainFn = alterDomain(options1);
 
-    it('should return a function', () => {
-      expect(alterDomainFn).toBeTypeOf('function');
-    });
-
-    it('should return sql statement with domainOptions default', () => {
-      const statement = alterDomainFn('zipcode', {
-        default: '12345',
+      it('should return a function', () => {
+        expect(alterDomainFn).toBeTypeOf('function');
       });
 
-      expect(statement).toBeTypeOf('string');
-      expect(statement).toBe(
-        'ALTER DOMAIN "zipcode" SET DEFAULT $pga$12345$pga$;'
-      );
-    });
+      it('should return sql statement with domainOptions default', () => {
+        const statement = alterDomainFn('zipcode', {
+          default: '12345',
+        });
 
-    it('should return sql statement with domainOptions default null', () => {
-      const statement = alterDomainFn('zipcode', {
-        default: null,
+        expect(statement).toBeTypeOf('string');
+        expect(statement).toBe(
+          'ALTER DOMAIN "zipcode" SET DEFAULT $pga$12345$pga$;'
+        );
       });
 
-      expect(statement).toBeTypeOf('string');
-      expect(statement).toBe('ALTER DOMAIN "zipcode" DROP DEFAULT;');
-    });
+      it('should return sql statement with domainOptions default null', () => {
+        const statement = alterDomainFn('zipcode', {
+          default: null,
+        });
 
-    it('should return sql statement with domainOptions notNull', () => {
-      const statement = alterDomainFn('zipcode', {
-        notNull: true,
+        expect(statement).toBeTypeOf('string');
+        expect(statement).toBe('ALTER DOMAIN "zipcode" DROP DEFAULT;');
       });
 
-      expect(statement).toBeTypeOf('string');
-      expect(statement).toBe('ALTER DOMAIN "zipcode" SET NOT NULL;');
-    });
+      it('should return sql statement with domainOptions notNull', () => {
+        const statement = alterDomainFn('zipcode', {
+          notNull: true,
+        });
 
-    it('should return sql statement with domainOptions allowNull', () => {
-      const statement = alterDomainFn('zipcode', {
-        allowNull: true,
+        expect(statement).toBeTypeOf('string');
+        expect(statement).toBe('ALTER DOMAIN "zipcode" SET NOT NULL;');
       });
 
-      expect(statement).toBeTypeOf('string');
-      expect(statement).toBe('ALTER DOMAIN "zipcode" DROP NOT NULL;');
-    });
+      it('should return sql statement with domainOptions allowNull', () => {
+        const statement = alterDomainFn('zipcode', {
+          allowNull: true,
+        });
 
-    it('should return sql statement with domainOptions check', () => {
-      const statement = alterDomainFn('zipcode', {
-        check: 'char_length(VALUE) = 5',
+        expect(statement).toBeTypeOf('string');
+        expect(statement).toBe('ALTER DOMAIN "zipcode" DROP NOT NULL;');
       });
 
-      expect(statement).toBeTypeOf('string');
-      expect(statement).toBe(
-        'ALTER DOMAIN "zipcode" CHECK (char_length(VALUE) = 5);'
-      );
-    });
+      it('should return sql statement with domainOptions check', () => {
+        const statement = alterDomainFn('zipcode', {
+          check: 'char_length(VALUE) = 5',
+        });
 
-    it('should return sql statement with domainOptions check and constraintName', () => {
-      const statement = alterDomainFn('zipcode', {
-        check: 'char_length(VALUE) = 5',
-        constraintName: 'zipchk',
+        expect(statement).toBeTypeOf('string');
+        expect(statement).toBe(
+          'ALTER DOMAIN "zipcode" CHECK (char_length(VALUE) = 5);'
+        );
       });
 
-      expect(statement).toBeTypeOf('string');
-      expect(statement).toBe(
-        'ALTER DOMAIN "zipcode" CONSTRAINT "zipchk" CHECK (char_length(VALUE) = 5);'
-      );
+      it('should return sql statement with domainOptions check and constraintName', () => {
+        const statement = alterDomainFn('zipcode', {
+          check: 'char_length(VALUE) = 5',
+          constraintName: 'zipchk',
+        });
+
+        expect(statement).toBeTypeOf('string');
+        expect(statement).toBe(
+          'ALTER DOMAIN "zipcode" CONSTRAINT "zipchk" CHECK (char_length(VALUE) = 5);'
+        );
+      });
     });
   });
 });
diff --git a/test/operations/domains/createDomain.spec.ts b/test/operations/domains/createDomain.spec.ts
index eb387453..475c10f4 100644
--- a/test/operations/domains/createDomain.spec.ts
+++ b/test/operations/domains/createDomain.spec.ts
@@ -4,95 +4,97 @@ import { createDomain } from '../../../src/operations/domains';
 import { options1 } from '../../utils';
 
 describe('operations', () => {
-  describe('createDomain', () => {
-    const createDomainFn = createDomain(options1);
+  describe('domains', () => {
+    describe('createDomain', () => {
+      const createDomainFn = createDomain(options1);
 
-    it('should return a function', () => {
-      expect(createDomainFn).toBeTypeOf('function');
-    });
-
-    it('should return sql statement with string', () => {
-      const statement = createDomainFn('us_postal_code', 'TEXT');
+      it('should return a function', () => {
+        expect(createDomainFn).toBeTypeOf('function');
+      });
 
-      expect(statement).toBeTypeOf('string');
-      expect(statement).toBe('CREATE DOMAIN "us_postal_code" AS TEXT;');
-    });
+      it('should return sql statement with string', () => {
+        const statement = createDomainFn('us_postal_code', 'TEXT');
 
-    it('should return sql statement with PgType', () => {
-      const statement = createDomainFn('us_postal_code', PgType.TEXT);
+        expect(statement).toBeTypeOf('string');
+        expect(statement).toBe('CREATE DOMAIN "us_postal_code" AS TEXT;');
+      });
 
-      expect(statement).toBeTypeOf('string');
-      expect(statement).toBe('CREATE DOMAIN "us_postal_code" AS text;');
-    });
+      it('should return sql statement with PgType', () => {
+        const statement = createDomainFn('us_postal_code', PgType.TEXT);
 
-    it('should return sql statement with schema', () => {
-      const statement = createDomainFn(
-        { schema: 'myschema', name: 'us_postal_code' },
-        'TEXT'
-      );
+        expect(statement).toBeTypeOf('string');
+        expect(statement).toBe('CREATE DOMAIN "us_postal_code" AS text;');
+      });
 
-      expect(statement).toBeTypeOf('string');
-      expect(statement).toBe(
-        'CREATE DOMAIN "myschema"."us_postal_code" AS TEXT;'
-      );
-    });
+      it('should return sql statement with schema', () => {
+        const statement = createDomainFn(
+          { schema: 'myschema', name: 'us_postal_code' },
+          'TEXT'
+        );
 
-    it('should return sql statement with domainOptions collation and default', () => {
-      const statement = createDomainFn('us_postal_code', 'TEXT', {
-        collation: 'en_US',
-        default: '12345',
+        expect(statement).toBeTypeOf('string');
+        expect(statement).toBe(
+          'CREATE DOMAIN "myschema"."us_postal_code" AS TEXT;'
+        );
       });
 
-      expect(statement).toBeTypeOf('string');
-      expect(statement).toBe(
-        'CREATE DOMAIN "us_postal_code" AS TEXT COLLATE en_US DEFAULT $pga$12345$pga$;'
-      );
-    });
+      it('should return sql statement with domainOptions collation and default', () => {
+        const statement = createDomainFn('us_postal_code', 'TEXT', {
+          collation: 'en_US',
+          default: '12345',
+        });
 
-    it('should return sql statement with domainOptions check', () => {
-      const statement = createDomainFn('us_postal_code', 'TEXT', {
-        check: "VALUE ~ '^d{5}$'",
+        expect(statement).toBeTypeOf('string');
+        expect(statement).toBe(
+          'CREATE DOMAIN "us_postal_code" AS TEXT COLLATE en_US DEFAULT $pga$12345$pga$;'
+        );
       });
 
-      expect(statement).toBeTypeOf('string');
-      expect(statement).toBe(
-        'CREATE DOMAIN "us_postal_code" AS TEXT CHECK (VALUE ~ \'^d{5}$\');'
-      );
-    });
+      it('should return sql statement with domainOptions check', () => {
+        const statement = createDomainFn('us_postal_code', 'TEXT', {
+          check: "VALUE ~ '^d{5}$'",
+        });
 
-    it('should return sql statement with domainOptions constraintName and notNull', () => {
-      const statement = createDomainFn('us_postal_code', 'TEXT', {
-        constraintName: 'us_postal_code_check',
-        notNull: true,
+        expect(statement).toBeTypeOf('string');
+        expect(statement).toBe(
+          'CREATE DOMAIN "us_postal_code" AS TEXT CHECK (VALUE ~ \'^d{5}$\');'
+        );
       });
 
-      expect(statement).toBeTypeOf('string');
-      expect(statement).toBe(
-        'CREATE DOMAIN "us_postal_code" AS TEXT CONSTRAINT "us_postal_code_check" NOT NULL;'
-      );
-    });
-
-    it('should throw when notNull and check are passed', () => {
-      expect(() =>
-        createDomainFn('us_postal_code', 'TEXT', {
-          check: "VALUE ~ '^d{5}$'",
+      it('should return sql statement with domainOptions constraintName and notNull', () => {
+        const statement = createDomainFn('us_postal_code', 'TEXT', {
+          constraintName: 'us_postal_code_check',
           notNull: true,
-        })
-      ).toThrow(
-        new Error('"notNull" and "check" can\'t be specified together')
-      );
-    });
+        });
+
+        expect(statement).toBeTypeOf('string');
+        expect(statement).toBe(
+          'CREATE DOMAIN "us_postal_code" AS TEXT CONSTRAINT "us_postal_code_check" NOT NULL;'
+        );
+      });
 
-    describe('reverse', () => {
-      it('should contain a reverse function', () => {
-        expect(createDomainFn.reverse).toBeTypeOf('function');
+      it('should throw when notNull and check are passed', () => {
+        expect(() =>
+          createDomainFn('us_postal_code', 'TEXT', {
+            check: "VALUE ~ '^d{5}$'",
+            notNull: true,
+          })
+        ).toThrow(
+          new Error('"notNull" and "check" can\'t be specified together')
+        );
       });
 
-      it('should return sql statement', () => {
-        const statement = createDomainFn.reverse('us_postal_code', 'TEXT');
+      describe('reverse', () => {
+        it('should contain a reverse function', () => {
+          expect(createDomainFn.reverse).toBeTypeOf('function');
+        });
 
-        expect(statement).toBeTypeOf('string');
-        expect(statement).toBe('DROP DOMAIN "us_postal_code";');
+        it('should return sql statement', () => {
+          const statement = createDomainFn.reverse('us_postal_code', 'TEXT');
+
+          expect(statement).toBeTypeOf('string');
+          expect(statement).toBe('DROP DOMAIN "us_postal_code";');
+        });
       });
     });
   });
diff --git a/test/operations/domains/dropDomain.spec.ts b/test/operations/domains/dropDomain.spec.ts
index 3d5a0e75..a86ad972 100644
--- a/test/operations/domains/dropDomain.spec.ts
+++ b/test/operations/domains/dropDomain.spec.ts
@@ -3,38 +3,42 @@ import { dropDomain } from '../../../src/operations/domains';
 import { options1 } from '../../utils';
 
 describe('operations', () => {
-  describe('dropDomain', () => {
-    const dropDomainFn = dropDomain(options1);
+  describe('domains', () => {
+    describe('dropDomain', () => {
+      const dropDomainFn = dropDomain(options1);
 
-    it('should return a function', () => {
-      expect(dropDomainFn).toBeTypeOf('function');
-    });
-
-    it('should return sql statement', () => {
-      const statement = dropDomainFn('us_postal_code');
+      it('should return a function', () => {
+        expect(dropDomainFn).toBeTypeOf('function');
+      });
 
-      expect(statement).toBeTypeOf('string');
-      expect(statement).toBe('DROP DOMAIN "us_postal_code";');
-    });
+      it('should return sql statement', () => {
+        const statement = dropDomainFn('us_postal_code');
 
-    it('should return sql statement with dropOptions', () => {
-      const statement = dropDomainFn('us_postal_code', {
-        ifExists: true,
-        cascade: true,
+        expect(statement).toBeTypeOf('string');
+        expect(statement).toBe('DROP DOMAIN "us_postal_code";');
       });
 
-      expect(statement).toBeTypeOf('string');
-      expect(statement).toBe('DROP DOMAIN IF EXISTS "us_postal_code" CASCADE;');
-    });
+      it('should return sql statement with dropOptions', () => {
+        const statement = dropDomainFn('us_postal_code', {
+          ifExists: true,
+          cascade: true,
+        });
 
-    it('should return sql statement with schema', () => {
-      const statement = dropDomainFn({
-        schema: 'myschema',
-        name: 'us_postal_code',
+        expect(statement).toBeTypeOf('string');
+        expect(statement).toBe(
+          'DROP DOMAIN IF EXISTS "us_postal_code" CASCADE;'
+        );
       });
 
-      expect(statement).toBeTypeOf('string');
-      expect(statement).toBe('DROP DOMAIN "myschema"."us_postal_code";');
+      it('should return sql statement with schema', () => {
+        const statement = dropDomainFn({
+          schema: 'myschema',
+          name: 'us_postal_code',
+        });
+
+        expect(statement).toBeTypeOf('string');
+        expect(statement).toBe('DROP DOMAIN "myschema"."us_postal_code";');
+      });
     });
   });
 });
diff --git a/test/operations/domains/renameDomain.spec.ts b/test/operations/domains/renameDomain.spec.ts
index 7b8509c6..9296edd3 100644
--- a/test/operations/domains/renameDomain.spec.ts
+++ b/test/operations/domains/renameDomain.spec.ts
@@ -3,30 +3,34 @@ import { renameDomain } from '../../../src/operations/domains';
 import { options1 } from '../../utils';
 
 describe('operations', () => {
-  describe('renameDomain', () => {
-    const renameDomainFn = renameDomain(options1);
+  describe('domains', () => {
+    describe('renameDomain', () => {
+      const renameDomainFn = renameDomain(options1);
 
-    it('should return a function', () => {
-      expect(renameDomainFn).toBeTypeOf('function');
-    });
-
-    it('should return sql statement with domainOptions default', () => {
-      const statement = renameDomainFn('zipcode', 'zip_code');
+      it('should return a function', () => {
+        expect(renameDomainFn).toBeTypeOf('function');
+      });
 
-      expect(statement).toBeTypeOf('string');
-      expect(statement).toBe('ALTER DOMAIN "zipcode" RENAME TO "zip_code";');
-    });
+      it('should return sql statement with domainOptions default', () => {
+        const statement = renameDomainFn('zipcode', 'zip_code');
 
-    describe('reverse', () => {
-      it('should contain a reverse function', () => {
-        expect(renameDomainFn.reverse).toBeTypeOf('function');
+        expect(statement).toBeTypeOf('string');
+        expect(statement).toBe('ALTER DOMAIN "zipcode" RENAME TO "zip_code";');
       });
 
-      it('should return sql statement', () => {
-        const statement = renameDomainFn.reverse('zipcode', 'zip_code');
+      describe('reverse', () => {
+        it('should contain a reverse function', () => {
+          expect(renameDomainFn.reverse).toBeTypeOf('function');
+        });
 
-        expect(statement).toBeTypeOf('string');
-        expect(statement).toBe('ALTER DOMAIN "zip_code" RENAME TO "zipcode";');
+        it('should return sql statement', () => {
+          const statement = renameDomainFn.reverse('zipcode', 'zip_code');
+
+          expect(statement).toBeTypeOf('string');
+          expect(statement).toBe(
+            'ALTER DOMAIN "zip_code" RENAME TO "zipcode";'
+          );
+        });
       });
     });
   });