diff --git a/helpers/__tests__/postwomanTesting.spec.js b/helpers/__tests__/postwomanTesting.spec.js
index e0824ec41..83184b39a 100644
--- a/helpers/__tests__/postwomanTesting.spec.js
+++ b/helpers/__tests__/postwomanTesting.spec.js
@@ -19,6 +19,11 @@ describe("Error handling", () => {
   test("errors array is empty on a successful test", () => {
     expect(getErrors("pw.expect(1).toBe(1)")).toStrictEqual([])
   })
+  test("throws error at a variable which is not declared", () => {
+    expect(() => {
+      runTestScriptWithVariables("someVariable")
+    }).toThrow()
+  })
 })
 
 describe("toBe", () => {
@@ -62,3 +67,133 @@ describe("toHaveProperty", () => {
     ).toEqual(FAIL)
   })
 })
+
+describe("toBeLevel2xx", () => {
+  test("test for numbers", () => {
+    expect(getTestResult("pw.expect(200).toBeLevel2xx()", 0)).toEqual(PASS)
+    expect(getTestResult("pw.expect(200).not.toBeLevel2xx()", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect(300).toBeLevel2xx()", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect(300).not.toBeLevel2xx()", 0)).toEqual(PASS)
+  })
+  test("test for strings", () => {
+    expect(getTestResult("pw.expect('200').toBeLevel2xx()", 0)).toEqual(PASS)
+    expect(getTestResult("pw.expect('200').not.toBeLevel2xx()", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect('300').toBeLevel2xx()", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect('300').not.toBeLevel2xx()", 0)).toEqual(PASS)
+  })
+  test("failed to parse to integer", () => {
+    expect(getTestResult("pw.expect(undefined).toBeLevel2xx()", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect(null).toBeLevel2xx()", 0)).toEqual(FAIL)
+    expect(() => {
+      runTestScriptWithVariables("pw.expect(Symbol('test')).toBeLevel2xx()")
+    }).toThrow()
+  })
+})
+
+describe("toBeLevel3xx()", () => {
+  test("test for numbers", () => {
+    expect(getTestResult("pw.expect(300).toBeLevel3xx()", 0)).toEqual(PASS)
+    expect(getTestResult("pw.expect(300).not.toBeLevel3xx()", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect(400).toBeLevel3xx()", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect(400).not.toBeLevel3xx()", 0)).toEqual(PASS)
+  })
+  test("test for strings", () => {
+    expect(getTestResult("pw.expect('300').toBeLevel3xx()", 0)).toEqual(PASS)
+    expect(getTestResult("pw.expect('300').not.toBeLevel3xx()", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect('400').toBeLevel3xx()", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect('400').not.toBeLevel3xx()", 0)).toEqual(PASS)
+  })
+  test("failed to parse to integer", () => {
+    expect(getTestResult("pw.expect(undefined).toBeLevel3xx()", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect(null).toBeLevel3xx()", 0)).toEqual(FAIL)
+    expect(() => {
+      runTestScriptWithVariables("pw.expect(Symbol('test')).toBeLevel3xx()")
+    }).toThrow()
+  })
+})
+
+describe("toBeLevel4xx()", () => {
+  test("test for numbers", () => {
+    expect(getTestResult("pw.expect(400).toBeLevel4xx()", 0)).toEqual(PASS)
+    expect(getTestResult("pw.expect(400).not.toBeLevel4xx()", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect(500).toBeLevel4xx()", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect(500).not.toBeLevel4xx()", 0)).toEqual(PASS)
+  })
+  test("test for strings", () => {
+    expect(getTestResult("pw.expect('400').toBeLevel4xx()", 0)).toEqual(PASS)
+    expect(getTestResult("pw.expect('400').not.toBeLevel4xx()", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect('500').toBeLevel4xx()", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect('500').not.toBeLevel4xx()", 0)).toEqual(PASS)
+  })
+  test("failed to parse to integer", () => {
+    expect(getTestResult("pw.expect(undefined).toBeLevel4xx()", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect(null).toBeLevel4xx()", 0)).toEqual(FAIL)
+    expect(() => {
+      runTestScriptWithVariables("pw.expect(Symbol('test')).toBeLevel4xx()")
+    }).toThrow()
+  })
+})
+
+describe("toBeLevel5xx()", () => {
+  test("test for numbers", () => {
+    expect(getTestResult("pw.expect(500).toBeLevel5xx()", 0)).toEqual(PASS)
+    expect(getTestResult("pw.expect(500).not.toBeLevel5xx()", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect(200).toBeLevel5xx()", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect(200).not.toBeLevel5xx()", 0)).toEqual(PASS)
+  })
+  test("test for strings", () => {
+    expect(getTestResult("pw.expect('500').toBeLevel5xx()", 0)).toEqual(PASS)
+    expect(getTestResult("pw.expect('500').not.toBeLevel5xx()", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect('200').toBeLevel5xx()", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect('200').not.toBeLevel5xx()", 0)).toEqual(PASS)
+  })
+  test("failed to parse to integer", () => {
+    expect(getTestResult("pw.expect(undefined).toBeLevel5xx()", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect(null).toBeLevel5xx()", 0)).toEqual(FAIL)
+    expect(() => {
+      runTestScriptWithVariables("pw.expect(Symbol('test')).toBeLevel5xx()")
+    }).toThrow()
+  })
+})
+
+describe("toHaveLength()", () => {
+  test("test for strings", () => {
+    expect(getTestResult("pw.expect('word').toHaveLength(4)", 0)).toEqual(PASS)
+    expect(getTestResult("pw.expect('word').toHaveLength(5)", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect('word').not.toHaveLength(4)", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect('word').not.toHaveLength(5)", 0)).toEqual(PASS)
+  })
+  test("test for arrays", () => {
+    const fruits = "['apples', 'bananas', 'oranges', 'grapes', 'strawberries', 'cherries']"
+    expect(getTestResult(`pw.expect(${fruits}).toHaveLength(6)`, 0)).toEqual(PASS)
+    expect(getTestResult(`pw.expect(${fruits}).toHaveLength(7)`, 0)).toEqual(FAIL)
+    expect(getTestResult(`pw.expect(${fruits}).not.toHaveLength(6)`, 0)).toEqual(FAIL)
+    expect(getTestResult(`pw.expect(${fruits}).not.toHaveLength(7)`, 0)).toEqual(PASS)
+  })
+})
+
+describe("toBeType()", () => {
+  test("test for positive assertion", () => {
+    expect(getTestResult("pw.expect('random').toBeType('string')", 0)).toEqual(PASS)
+    expect(getTestResult("pw.expect(true).toBeType('boolean')", 0)).toEqual(PASS)
+    expect(getTestResult("pw.expect(5).toBeType('number')", 0)).toEqual(PASS)
+    expect(getTestResult("pw.expect(new Date()).toBeType('object')", 0)).toEqual(PASS)
+    expect(getTestResult("pw.expect(undefined).toBeType('undefined')", 0)).toEqual(PASS)
+    expect(getTestResult("pw.expect(BigInt(123)).toBeType('bigint')", 0)).toEqual(PASS)
+    expect(getTestResult("pw.expect(Symbol('test')).toBeType('symbol')", 0)).toEqual(PASS)
+    expect(getTestResult("pw.expect(function() {}).toBeType('function')", 0)).toEqual(PASS)
+  })
+  test("test for negative assertion", () => {
+    expect(getTestResult("pw.expect('random').not.toBeType('string')", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect(true).not.toBeType('boolean')", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect(5).not.toBeType('number')", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect(new Date()).not.toBeType('object')", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect(undefined).not.toBeType('undefined')", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect(BigInt(123)).not.toBeType('bigint')", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect(Symbol('test')).not.toBeType('symbol')", 0)).toEqual(FAIL)
+    expect(getTestResult("pw.expect(function() {}).not.toBeType('function')", 0)).toEqual(FAIL)
+  })
+  test("unexpected type", () => {
+    expect(getTestResult("pw.expect('random').toBeType('unknown')", 0)).toEqual(FAIL)
+  })
+})
diff --git a/helpers/postwomanTesting.js b/helpers/postwomanTesting.js
index 1de644e94..3bf8fcf49 100644
--- a/helpers/postwomanTesting.js
+++ b/helpers/postwomanTesting.js
@@ -109,7 +109,7 @@ class Expectation {
         )
   }
   toBeLevel2xx() {
-    const code = parseInt(this.expectValue)
+    const code = parseInt(this.expectValue, 10)
     if (Number.isNaN(code)) {
       return this._fail(`Expected 200-level status but could not parse value ${this.expectValue}`)
     }
@@ -118,7 +118,7 @@ class Expectation {
       : this._fail(this._fmtNot(`Expected ${this.expectValue} to (not)be 200-level status`))
   }
   toBeLevel3xx() {
-    const code = parseInt(this.expectValue)
+    const code = parseInt(this.expectValue, 10)
     if (Number.isNaN(code)) {
       return this._fail(`Expected 300-level status but could not parse value ${this.expectValue}`)
     }
@@ -127,7 +127,7 @@ class Expectation {
       : this._fail(this._fmtNot(`Expected ${this.expectValue} to (not)be 300-level status`))
   }
   toBeLevel4xx() {
-    const code = parseInt(this.expectValue)
+    const code = parseInt(this.expectValue, 10)
     if (Number.isNaN(code)) {
       return this._fail(`Expected 400-level status but could not parse value ${this.expectValue}`)
     }
@@ -136,7 +136,7 @@ class Expectation {
       : this._fail(this._fmtNot(`Expected ${this.expectValue} to (not)be 400-level status`))
   }
   toBeLevel5xx() {
-    const code = parseInt(this.expectValue)
+    const code = parseInt(this.expectValue, 10)
     if (Number.isNaN(code)) {
       return this._fail(`Expected 500-level status but could not parse value ${this.expectValue}`)
     }