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13a3d4c198
* setup linting with eslint-config-standard, prettier * [autofix] npm run lint -- --fix with new setup * [manual] fix types/ directory errors * [manual] fix linting errors in test/ directory * [manual] fix single linting error in src/ * revert ts-expect-error comment change * error on .only in mocha tests * fix test description typo * move some short objects to single line * add and gitignore eslintcache * individually suppress ts any * set --max-warnings to 0 * extract matrices to constants * update ts-expect-error comments
48 lines
1.7 KiB
JavaScript
48 lines
1.7 KiB
JavaScript
// test parse
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import assert from 'assert'
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import math from '../../../../src/defaultInstance.js'
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const Node = math.Node
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const ArrayNode = math.ArrayNode
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const ObjectNode = math.ObjectNode
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const FunctionNode = math.FunctionNode
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const OperatorNode = math.OperatorNode
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describe('parse', function () {
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it('should parse an expression', function () {
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const node = math.parse('(5+3)/4')
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assert.ok(node instanceof Node)
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assert.strictEqual(node.compile().evaluate(), 2)
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})
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it('should parse multiple expressions', function () {
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const nodes = math.parse(['2+3', '4+5'])
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assert.ok(Array.isArray(nodes))
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assert.strictEqual(nodes.length, 2)
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assert.ok(nodes[0] instanceof Node)
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assert.ok(nodes[1] instanceof Node)
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assert.strictEqual(nodes[0].compile().evaluate(), 5)
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assert.strictEqual(nodes[1].compile().evaluate(), 9)
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})
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it('should parse expressions with internal newlines', function () {
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assert.ok(math.parse('[1,\n2]') instanceof ArrayNode)
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assert.ok(math.parse('{x:1,\n y:2}') instanceof ObjectNode)
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assert.ok(math.parse('f(x,\n y)') instanceof FunctionNode)
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assert.ok(math.parse('3+\n7') instanceof OperatorNode)
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})
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it('should parse expressions with internal newlines and comments', function () {
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assert.ok(math.parse('[1, # One\n2]') instanceof ArrayNode)
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assert.ok(math.parse('{x:1, # x-coordinate\n y:2}') instanceof ObjectNode)
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assert.ok(math.parse('f(x, # first argument\n y)') instanceof FunctionNode)
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assert.ok(math.parse('3+#ignored terms\n7') instanceof OperatorNode)
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})
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it('should LaTeX parse', function () {
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const expression = math.parse('parse(expr,options)')
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assert.strictEqual(expression.toTex(), '\\mathrm{parse}\\left( expr, options\\right)')
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})
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})
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