Test code cleanup, and starting SCORM 2004 CMI tests

test/helpers.js

@@ -0,0 +1,162 @@
+import {describe, it} from 'mocha';
+import {expect} from 'chai';
+
+export const checkFieldConstraintSize = (
+    {
+      cmi,
+      fieldName,
+      limit,
+      expectedValue = '',
+      expectedError,
+    }) => {
+  describe(`Field: ${fieldName}`, () => {
+    it(`Should be able to read from ${fieldName}`, () => {
+      expect(eval(`${fieldName}`)).to.equal(expectedValue);
+    });
+
+    it(`Should be able to write upto ${limit} characters to ${fieldName}`,
+        () => {
+          expect(() => eval(`${fieldName} = 'x'.repeat(${limit})`)).
+              to.not.throw();
+        });
+
+    it(`Should fail to write more than ${limit} characters to ${fieldName}`,
+        () => {
+          expect(() => eval(`${fieldName} = 'x'.repeat(${limit + 1})`)).
+              to.throw(expectedError + '');
+        });
+  });
+};
+
+export const checkInvalidSet = (
+    {
+      cmi,
+      fieldName,
+      expectedValue = '',
+      expectedError,
+    }) => {
+  describe(`Field: ${fieldName}`, () => {
+    it(`Should be able to read from ${fieldName}`, () => {
+      expect(eval(`${fieldName}`)).to.equal(expectedValue);
+    });
+
+    it(`Should fail to write to ${fieldName}`, () => {
+      expect(() => eval(`${fieldName} = 'xxx'`)).
+          to.throw(expectedError + '');
+    });
+  });
+};
+
+export const checkReadOnly = (
+    {
+      cmi,
+      fieldName,
+      expectedValue = '',
+      expectedError,
+    }) => {
+  describe(`Field: ${fieldName}`, () => {
+    it(`Should be able to read from ${fieldName}`, () => {
+      expect(eval(`${fieldName}`)).to.equal(expectedValue);
+    });
+
+    it(`Should fail to write to ${fieldName}`, () => {
+      expect(() => eval(`${fieldName} = 'xxx'`)).
+          to.throw(expectedError + '');
+    });
+  });
+};
+
+export const checkRead = (
+    {
+      cmi,
+      fieldName,
+      expectedValue = '',
+    }) => {
+  describe(`Field: ${fieldName}`, () => {
+    it(`Should be able to read from ${fieldName}`, () => {
+      expect(eval(`${fieldName}`)).to.equal(expectedValue);
+    });
+  });
+};
+
+export const checkReadAndWrite = (
+    {
+      cmi,
+      fieldName,
+      expectedValue = '',
+      valueToTest = 'xxx',
+    }) => {
+  describe(`Field: ${fieldName}`, () => {
+    it(`Should be able to read from ${fieldName}`, () => {
+      expect(eval(`${fieldName}`)).to.equal(expectedValue);
+    });
+
+    it(`Should successfully write to ${fieldName}`, () => {
+      expect(() => eval(`${fieldName} = '${valueToTest}'`)).
+          to.not.throw();
+    });
+  });
+};
+
+export const checkWriteOnly = (
+    {
+      cmi,
+      fieldName,
+      valueToTest = 'xxx',
+      expectedError,
+    }) => {
+  describe(`Field: ${fieldName}`, () => {
+    it(`Should fail to read from ${fieldName}`, () => {
+      expect(() => eval(`${fieldName}`)).
+          to.throw(expectedError + '');
+    });
+
+    it(`Should successfully write to ${fieldName}`, () => {
+      expect(() => eval(`${fieldName} = '${valueToTest}'`)).to.not.throw();
+    });
+  });
+};
+
+export const checkWrite = (
+    {
+      cmi,
+      fieldName,
+      valueToTest = 'xxx',
+    }) => {
+  describe(`Field: ${fieldName}`, () => {
+    it(`Should successfully write to ${fieldName}`, () => {
+      expect(() => eval(`${fieldName} = '${valueToTest}'`)).to.not.throw();
+    });
+  });
+};
+
+export const checkValidValues = (
+    {
+      cmi,
+      fieldName,
+      expectedError,
+      validValues,
+      invalidValues,
+    }) => {
+  describe(`Field: ${fieldName}`, () => {
+    for (const idx in validValues) {
+      if ({}.hasOwnProperty.call(validValues, idx)) {
+        it(`Should successfully write '${validValues[idx]}' to ${fieldName}`,
+            () => {
+              expect(() => eval(`${fieldName} = '${validValues[idx]}'`)).
+                  to.not.throw();
+            });
+      }
+    }
+
+    for (const idx in invalidValues) {
+      if ({}.hasOwnProperty.call(invalidValues, idx)) {
+        it(`Should fail to write '${invalidValues[idx]}' to ${fieldName}`,
+            () => {
+              expect(() => eval(`${fieldName} = '${invalidValues[idx]}'`)).
+                  to.throw(expectedError + '');
+            });
+      }
+    }
+  });
+};