Remove unreachable alignment assertions

src/alignString.ts

@@ -1,6 +1,9 @@
 import isNumber from 'is-number-object';
 import isString from 'is-string';
 import stringWidth from 'string-width';
+import type {
+ ColumnUserConfig,
+} from './types/api';
 
 const alignLeft = (subject: string, width: number): string => {
  return subject + ' '.repeat(width);
@@ -24,17 +27,11 @@ const alignCenter = (subject: string, width: number): string => {
  }
 };
 
-const alignments = [
- 'left',
- 'right',
- 'center',
-];
-
 /**
  * Pads a string to the left and/or right to position the subject
  * text in a desired alignment within a container.
  */
-export default (subject: string, containerWidth: number, alignment: string): string => {
+export default (subject: string, containerWidth: number, alignment: ColumnUserConfig['alignment']): string => {
  if (!isString(subject)) {
  throw new TypeError('Subject parameter value must be a string.');
  }
@@ -49,14 +46,6 @@ export default (subject: string, containerWidth: number, alignment: string): str
  throw new Error('Subject parameter value width cannot be greater than the container width.');
  }
 
- if (!isString(alignment)) {
- throw new TypeError('Alignment parameter value must be a string.');
- }
-
- if (!alignments.includes(alignment)) {
- throw new Error('Alignment parameter value must be a known alignment parameter value (left, right, center).');
- }
-
  if (subjectWidth === 0) {
  return ' '.repeat(containerWidth);
  }

test/alignString.ts

@@ -28,20 +28,7 @@ describe('alignString', () => {
  }).to.throw(Error, 'Subject parameter value width cannot be greater than the container width.');
  });
  });
- context('container alignment parameter value is not a string', () => {
- it('throws an error', () => {
- expect(() => {
- alignString('', 1, 2 as never);
- }).to.throw(Error, 'Alignment parameter value must be a string.');
- });
- });
- context('container alignment parameter value is not a known alignment parameter value', () => {
- it('throws an error', () => {
- expect(() => {
- alignString('', 1, 'foo');
- }).to.throw(Error, 'Alignment parameter value must be a known alignment parameter value (left, right, center).');
- });
- });
+
  context('subject parameter value', () => {
  context('0 width', () => {
  it('produces a string consisting of container width number of whitespace characters', () => {

test/configSamples.ts

@@ -27,6 +27,7 @@ const configSamples: {invalid: unknown[], valid: TableUserConfig[], } = {
  {columns: {1: {unknown: 1}}},
  {columns: {1: {alignment: 1}}},
  {columns: {1: {alignment: '1'}}},
+ {columns: {0: {alignment: 'middle'}}},
  {columns: {1: {width: '5'}}},
  {columns: {1: {wrapWord: 1}}},
  {columns: {1: {truncate: '1'}}},
@@ -36,6 +37,7 @@ const configSamples: {invalid: unknown[], valid: TableUserConfig[], } = {
  {columnDefault: {unknown: 1}},
  {columnDefault: {alignment: 1}},
  {columnDefault: {alignment: '1'}},
+ {columnDefault: {alignment: 'middle'}},
  {columnDefault: {width: '5'}},
  {columnDefault: {wrapWord: 1}},
  {columnDefault: {truncate: '1'}},
@@ -45,6 +47,7 @@ const configSamples: {invalid: unknown[], valid: TableUserConfig[], } = {
  {unknown: 1},
  ],
  valid: [
+ {},
  {
  columns: {
  0: {
@@ -121,6 +124,9 @@ const configSamples: {invalid: unknown[], valid: TableUserConfig[], } = {
  },
  },
  },
+ {columns: {0: {alignment: 'left'}}},
+ {columns: {1: {alignment: 'right'}}},
+ {columns: {2: {alignment: 'center'}}},
  {border: {topBody: '-'}},
  {border: {topJoin: '-'}},
  {border: {topLeft: '-'}},

test/streamConfigSamples.ts

@@ -42,6 +42,11 @@ const streamConfigSamples: {invalid: unknown[], valid: StreamUserConfig[], } = {
  {columnDefault: {paddingLeft: '1'}},
  {columnDefault: {paddingRight: '1'}},
  {unknown: 1},
+ {
+ columnCount: 3,
+ columnDefault: {width: 20},
+ columns: {0: {alignment: 'middle'}},
+ },
 
  // eslint-disable-next-line no-warning-comments
  // TODO: Fix the schema so that the following configs are truly invalid
@@ -74,6 +79,25 @@ const streamConfigSamples: {invalid: unknown[], valid: StreamUserConfig[], } = {
  // {columnDefault: {paddingRight: 1}},
  ],
  valid: [
+ {
+ columnCount: 3,
+ columnDefault: {width: 20},
+ },
+ {
+ columnCount: 3,
+ columnDefault: {width: 20},
+ columns: {0: {alignment: 'left'}},
+ },
+ {
+ columnCount: 3,
+ columnDefault: {width: 20},
+ columns: {1: {alignment: 'right'}},
+ },
+ {
+ columnCount: 3,
+ columnDefault: {width: 20},
+ columns: {2: {alignment: 'center'}},
+ },
  {
  columnCount: 3,
  columnDefault: {