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test cases for getTrimLength and translateToString
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@jerch
jerch committed Nov 8, 2018
1 parent 2f9c04c commit a15b866
Showing 1 changed file with 127 additions and 1 deletion.
128 changes: 127 additions & 1 deletion src/BufferLine.test.ts
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Expand Up @@ -5,7 +5,7 @@
import * as chai from 'chai';
import { BufferLine } from './BufferLine';
import { CharData, IBufferLine } from './Types';
import { NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE } from './Buffer';
import { NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE, DEFAULT_ATTR } from './Buffer';


class TestBufferLine extends BufferLine {
Expand Down Expand Up @@ -200,4 +200,130 @@ describe('BufferLine', function(): void {
chai.expect(line.toArray()).eql(Array(7).fill([1, 'a', 0, 'a'.charCodeAt(0)]));
});
});
describe('getTrimLength', function(): void {
it('empty line', function(): void {
const line = new TestBufferLine(10, [DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE], false);
chai.expect(line.getTrimmedLength()).equal(0);
});
it('ASCII', function(): void {
const line = new TestBufferLine(10, [DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE], false);
line.set(0, [1, 'a', 1, 'a'.charCodeAt(0)]);
line.set(2, [1, 'a', 1, 'a'.charCodeAt(0)]);
chai.expect(line.getTrimmedLength()).equal(3);
});
it('surrogate', function(): void {
const line = new TestBufferLine(10, [DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE], false);
line.set(0, [1, 'a', 1, 'a'.charCodeAt(0)]);
line.set(2, [1, '𝄞', 1, '𝄞'.charCodeAt(0)]);
chai.expect(line.getTrimmedLength()).equal(3);
});
it('combining', function(): void {
const line = new TestBufferLine(10, [DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE], false);
line.set(0, [1, 'a', 1, 'a'.charCodeAt(0)]);
line.set(2, [1, 'e\u0301', 1, '\u0301'.charCodeAt(0)]);
chai.expect(line.getTrimmedLength()).equal(3);
});
it('fullwidth', function(): void {
const line = new TestBufferLine(10, [DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE], false);
line.set(0, [1, 'a', 1, 'a'.charCodeAt(0)]);
line.set(2, [1, '１', 2, '１'.charCodeAt(0)]);
line.set(3, [0, '', 0, undefined]);
chai.expect(line.getTrimmedLength()).equal(4); // also counts null cell after fullwidth
});
});
describe('translateToString with and w\'o trimming', function(): void {
it('empty line', function(): void {
const line = new TestBufferLine(10, [DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE], false);
chai.expect(line.translateToString(false)).equal(' ');
chai.expect(line.translateToString(true)).equal('');
});
it('ASCII', function(): void {
const line = new TestBufferLine(10, [DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE], false);
line.set(0, [1, 'a', 1, 'a'.charCodeAt(0)]);
line.set(2, [1, 'a', 1, 'a'.charCodeAt(0)]);
line.set(4, [1, 'a', 1, 'a'.charCodeAt(0)]);
line.set(5, [1, 'a', 1, 'a'.charCodeAt(0)]);
chai.expect(line.translateToString(false)).equal('a a aa ');
chai.expect(line.translateToString(true)).equal('a a aa');
chai.expect(line.translateToString(false, 0, 5)).equal('a a a');
chai.expect(line.translateToString(false, 0, 4)).equal('a a ');
chai.expect(line.translateToString(false, 0, 3)).equal('a a');
chai.expect(line.translateToString(true, 0, 5)).equal('a a a');
chai.expect(line.translateToString(true, 0, 4)).equal('a a ');
chai.expect(line.translateToString(true, 0, 3)).equal('a a');

});
it('surrogate', function(): void {
const line = new TestBufferLine(10, [DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE], false);
line.set(0, [1, 'a', 1, 'a'.charCodeAt(0)]);
line.set(2, [1, '𝄞', 1, '𝄞'.charCodeAt(0)]);
line.set(4, [1, '𝄞', 1, '𝄞'.charCodeAt(0)]);
line.set(5, [1, '𝄞', 1, '𝄞'.charCodeAt(0)]);
chai.expect(line.translateToString(false)).equal('a 𝄞 𝄞𝄞 ');
chai.expect(line.translateToString(true)).equal('a 𝄞 𝄞𝄞');
chai.expect(line.translateToString(false, 0, 5)).equal('a 𝄞 𝄞');
chai.expect(line.translateToString(false, 0, 4)).equal('a 𝄞 ');
chai.expect(line.translateToString(false, 0, 3)).equal('a 𝄞');
chai.expect(line.translateToString(true, 0, 5)).equal('a 𝄞 𝄞');
chai.expect(line.translateToString(true, 0, 4)).equal('a 𝄞 ');
chai.expect(line.translateToString(true, 0, 3)).equal('a 𝄞');
});
it('combining', function(): void {
const line = new TestBufferLine(10, [DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE], false);
line.set(0, [1, 'a', 1, 'a'.charCodeAt(0)]);
line.set(2, [1, 'e\u0301', 1, '\u0301'.charCodeAt(0)]);
line.set(4, [1, 'e\u0301', 1, '\u0301'.charCodeAt(0)]);
line.set(5, [1, 'e\u0301', 1, '\u0301'.charCodeAt(0)]);
chai.expect(line.translateToString(false)).equal('a e\u0301 e\u0301e\u0301 ');
chai.expect(line.translateToString(true)).equal('a e\u0301 e\u0301e\u0301');
chai.expect(line.translateToString(false, 0, 5)).equal('a e\u0301 e\u0301');
chai.expect(line.translateToString(false, 0, 4)).equal('a e\u0301 ');
chai.expect(line.translateToString(false, 0, 3)).equal('a e\u0301');
chai.expect(line.translateToString(true, 0, 5)).equal('a e\u0301 e\u0301');
chai.expect(line.translateToString(true, 0, 4)).equal('a e\u0301 ');
chai.expect(line.translateToString(true, 0, 3)).equal('a e\u0301');
});
it('fullwidth', function(): void {
const line = new TestBufferLine(10, [DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE], false);
line.set(0, [1, 'a', 1, 'a'.charCodeAt(0)]);
line.set(2, [1, '１', 2, '１'.charCodeAt(0)]);
line.set(3, [0, '', 0, undefined]);
line.set(5, [1, '１', 2, '１'.charCodeAt(0)]);
line.set(6, [0, '', 0, undefined]);
line.set(7, [1, '１', 2, '１'.charCodeAt(0)]);
line.set(8, [0, '', 0, undefined]);
chai.expect(line.translateToString(false)).equal('a １ １１ ');
chai.expect(line.translateToString(true)).equal('a １ １１');
chai.expect(line.translateToString(false, 0, 7)).equal('a １ １');
chai.expect(line.translateToString(false, 0, 6)).equal('a １ １');
chai.expect(line.translateToString(false, 0, 5)).equal('a １ ');
chai.expect(line.translateToString(false, 0, 4)).equal('a １');
chai.expect(line.translateToString(false, 0, 3)).equal('a １');
chai.expect(line.translateToString(false, 0, 2)).equal('a ');
chai.expect(line.translateToString(true, 0, 7)).equal('a １ １');
chai.expect(line.translateToString(true, 0, 6)).equal('a １ １');
chai.expect(line.translateToString(true, 0, 5)).equal('a １ ');
chai.expect(line.translateToString(true, 0, 4)).equal('a １');
chai.expect(line.translateToString(true, 0, 3)).equal('a １');
chai.expect(line.translateToString(true, 0, 2)).equal('a ');
});
it('space at end', function(): void {
const line = new TestBufferLine(10, [DEFAULT_ATTR, NULL_CELL_CHAR, NULL_CELL_WIDTH, NULL_CELL_CODE], false);
line.set(0, [1, 'a', 1, 'a'.charCodeAt(0)]);
line.set(2, [1, 'a', 1, 'a'.charCodeAt(0)]);
line.set(4, [1, 'a', 1, 'a'.charCodeAt(0)]);
line.set(5, [1, 'a', 1, 'a'.charCodeAt(0)]);
line.set(6, [1, ' ', 1, ' '.charCodeAt(0)]);
chai.expect(line.translateToString(false)).equal('a a aa ');
chai.expect(line.translateToString(true)).equal('a a aa ');
});
it('should always return some sane value', function(): void {
// sanity check - broken line with invalid out of bound null width cells
// this can atm happen with deleting/inserting chars in inputhandler by "breaking"
// fullwidth pairs --> needs to be fixed after settling BufferLine impl
const line = new TestBufferLine(10, [DEFAULT_ATTR, NULL_CELL_CHAR, 0, NULL_CELL_CODE], false);
chai.expect(line.translateToString(false)).equal(' ');
chai.expect(line.translateToString(true)).equal('');
});
});
});

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