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Update pylex tests

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This commit is contained in:
Jacob Grossman 2021-11-05 15:56:36 -05:00
parent dc1565f4d0
commit a67750c30e
6 changed files with 134 additions and 146 deletions
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4
src/commands.ts
View File

@ -124,8 +124,8 @@ function createContextString(context: pl.LexNode[], line: number): string {
continue;
}
if (node.token!.type != pl.PylexSymbol.EMPTY &&
node.token!.type != pl.PylexSymbol.INDENT) {
if (node.token!.type !== pl.PylexSymbol.EMPTY &&
node.token!.type !== pl.PylexSymbol.INDENT) {
contextString += ' inside ' + node.token!.type.toString();
if (node.token!.attr) {
contextString += ' ' + node.token!.attr.toString();

4
src/pylex/node.ts
View File

@ -48,8 +48,9 @@ export default class LexNode extends vscode.TreeItem {
* Adopt child nodes.
*
* @param `child` Array of nodes to adopt.
* @returns an updated version of itself
*/
adopt(children: LexNode[]): void {
adopt(children: LexNode[]): LexNode {
let parentedChildren = children.map(c => new LexNode(
c.label,
c.collapsibleState,
@ -66,6 +67,7 @@ export default class LexNode extends vscode.TreeItem {
// No....
this._children = parentedChildren;
}
return this;
}
/**

2
src/pylex/parser.ts
View File

@ -120,7 +120,7 @@ export default class Parser {
*/
context(lineNumber: number, root?: LexNode): LexNode[] {
if (!root) {
root = this.root
root = this.root;
}
// is this the target?

101
src/test/suites/pylex/lexer.test.ts
View File

@ -17,13 +17,18 @@ suite('Lexer Test Suite', () => {
});
test('Undefined', () => {
let l: Lexer = new Lexer('');
let l: Lexer = new Lexer(undefined);
assert.deepStrictEqual(l.currToken(), EOFTOKEN);
});
test('Whitespace', () => {
let l: Lexer = new Lexer(' \t\t'.repeat(4).repeat(4));
assert.deepStrictEqual(l.currToken(), EOFTOKEN);
assert.deepStrictEqual(l.currToken(), new LineToken(Symbol.EMPTY, 0, 999999));
});
test('Comment', () => {
let l: Lexer = new Lexer('# ur mom eats toes');
assert.deepStrictEqual(l.currToken(), new LineToken(Symbol.EMPTY, 0, 999999));
});
test('Non-Whitespace with no construct', () => {
@ -120,98 +125,6 @@ suite('Lexer Test Suite', () => {
assert.deepStrictEqual(l.currToken(), new LineToken(Symbol.IF, 0, 0, 'is_old()'));
});
test('next() ignores empty lines', () => {
let lines: string[] = [
'if wurst_available():',
'',
' eat_wurst()'
];
let l: Lexer = new Lexer(lines.join('\n'));
l.next();
assert.deepStrictEqual(l.currToken(), new LineToken(Symbol.INDENT, 2, 1));
});
test('retract() ignores empty lines', () => {
let lines: string[] = [
'if wurst_available():',
'',
' eat_wurst()'
];
let l: Lexer = new Lexer(lines.join('\n'));
l.next();
l.retract();
assert.deepStrictEqual(l.currToken(), new LineToken(Symbol.IF, 0, 0, 'wurst_available()'));
});
test('next() ignores whitespace lines', () => {
let lines: string[] = [
'if wurst_available():',
' \t \t ',
' eat_wurst()'
];
let l: Lexer = new Lexer(lines.join('\n'));
l.next();
assert.deepStrictEqual(l.currToken(), new LineToken(Symbol.INDENT, 2, 1));
});
test('retract() ignores whitespace lines', () => {
let lines: string[] = [
'if wurst_available():',
' \t \t ',
' eat_wurst()'
];
let l: Lexer = new Lexer(lines.join('\n'));
// Advance to end of input
// Eliminates dependence on next()
// skipping whitespace
do {} while (l.next() !== EOFTOKEN);
l.retract(); // retract past EOFTOKEn
l.retract();
assert.deepStrictEqual(l.currToken(), new LineToken(Symbol.IF, 0, 0, 'wurst_available()'));
});
test('next() ignores comment lines', () => {
let lines: string[] = [
'if wurst_available():',
' \t # I hate testing \t',
' eat_wurst()'
];
let l: Lexer = new Lexer(lines.join('\n'));
l.next();
assert.deepStrictEqual(l.currToken(), new LineToken(Symbol.INDENT, 2, 1));
});
test('retract() ignores comment lines', () => {
let lines: string[] = [
'if wurst_available():',
' \t # \t',
' eat_wurst()'
];
let l: Lexer = new Lexer(lines.join('\n'));
// Advance to end of input
// Eliminates dependence on next()
// skipping comment
do {} while (l.next() !== EOFTOKEN);
l.retract(); // retract past EOFTOKEn
l.retract();
assert.deepStrictEqual(l.currToken(), new LineToken(Symbol.IF, 0, 0, 'wurst_available()'));
});
test('next() out of range', () => {
let l: Lexer = new Lexer('foo = zaboomafoo');
l.next();

154
src/test/suites/pylex/parser.test.ts
View File

@ -1,51 +1,61 @@
import * as assert from 'assert';
import * as vscode from 'vscode';
import { after } from 'mocha';
import { deparent, root } from '../../util';
import Parser from '../../../pylex/parser';
import LexNode from '../../../pylex/node';
import LineToken from '../../../pylex/token';
import { Symbol } from '../../../pylex/token';
import { root,indent,empty } from '../../util';
/**
* Test Descriptor
*/
type ParserTest = {
name: string,
input: string[],
output: LexNode,
name: string, // short name for the test
input: string[], // input lines for the test
output: LexNode // expected output. outputs are compared for token equality *only*
};
const tests: ParserTest[] = [
{ name: 'No Input', input: [], output: root(null) },
{ name: 'Single Empty Line', input: [''], output: root(null) },
{
name: 'No Input',
input: [ ],
output: root(null),
},
{
name: 'Single line without construct',
input: [ 'foo = "Yellow M&Ms make me angry >:(' ],
output: root(null),
},
{
name: 'Single line with construct',
input: [ 'for x of y:' ],
name: 'Single Whitespace Only Line',
input: [' '],
output: root([
new LexNode(
'for x of y',
vscode.TreeItemCollapsibleState.None,
new LineToken(Symbol.FOR, 0, 0, 'x of y')
)
]),
empty(0)
])
},
{
name: 'Single Comment Only Line',
input: ['# ur mom likes peas'],
output: root([
empty(0)
])
},
{
name: 'Single Non-Control Line',
input: ['my_age = 42'],
output: root([
indent(0, 0)
])
},
{
name: 'Single Control Line',
input: ['while True:'],
output: root([
new LexNode('', 0, new LineToken(Symbol.WHILE, 0, 0, 'True'))
])
},
{
name: 'Sequential lines, without construct',
input: [
'bar = "Blue M&Ms make me happy <:)"',
'reba = "A hard working gal"'
],
output: root(null),
output: root([indent(0,0), indent(1,0)]),
},
{
@ -58,7 +68,9 @@ const tests: ParserTest[] = [
output: root([
new LexNode('if radioshack',
vscode.TreeItemCollapsibleState.None,
new LineToken(Symbol.IF, 0, 0, 'radioshack'))
new LineToken(Symbol.IF, 0, 0, 'radioshack'),
[indent(1, 1)]),
indent(2, 0)
])
},
@ -70,9 +82,11 @@ const tests: ParserTest[] = [
' print radioshack.hours'
],
output: root([
indent(0, 0),
new LexNode('if radioshack',
vscode.TreeItemCollapsibleState.None,
new LineToken(Symbol.IF, 1, 0, 'radioshack'))
new LineToken(Symbol.IF, 1, 0, 'radioshack'),
[indent(2, 1)])
])
},
@ -89,13 +103,13 @@ const tests: ParserTest[] = [
output: root([
new LexNode('if yummy',
vscode.TreeItemCollapsibleState.None,
new LineToken(Symbol.IF, 0, 0, 'yummy')),
new LineToken(Symbol.IF, 0, 0, 'yummy'), [indent(1, 1)]),
new LexNode('elif just_ok',
vscode.TreeItemCollapsibleState.None,
new LineToken(Symbol.ELIF, 2, 0, 'just_ok')),
new LineToken(Symbol.ELIF, 2, 0, 'just_ok'), [indent(3, 1)]),
new LexNode('else',
vscode.TreeItemCollapsibleState.None,
new LineToken(Symbol.ELSE, 4, 0)),
new LineToken(Symbol.ELSE, 4, 0), [indent(5,1)]),
])
},
@ -113,8 +127,9 @@ const tests: ParserTest[] = [
[
new LexNode('if in_my_tummy',
vscode.TreeItemCollapsibleState.None,
new LineToken(Symbol.IF, 1, 1, 'in_my_tummy'))
]
new LineToken(Symbol.IF, 1, 1, 'in_my_tummy'),
[indent(2, 2)])
],
)
])
},
@ -135,12 +150,14 @@ const tests: ParserTest[] = [
[
new LexNode('if in_my_tummy',
vscode.TreeItemCollapsibleState.None,
new LineToken(Symbol.IF, 1, 1, 'in_my_tummy'))
new LineToken(Symbol.IF, 1, 1, 'in_my_tummy'),
[indent(2, 2)])
]
),
new LexNode('else',
new LexNode('else',
vscode.TreeItemCollapsibleState.None,
new LineToken(Symbol.ELSE, 3, 0),
[indent(4, 1)]
)
])
},
@ -166,7 +183,8 @@ const tests: ParserTest[] = [
[
new LexNode('if looks_like_a_mummy',
vscode.TreeItemCollapsibleState.None,
new LineToken(Symbol.IF, 2, 2, 'looks_like_a_mummy'))
new LineToken(Symbol.IF, 2, 2, 'looks_like_a_mummy'),
[indent(3, 3)])
]
)
]
@ -174,12 +192,13 @@ const tests: ParserTest[] = [
new LexNode('else',
vscode.TreeItemCollapsibleState.None,
new LineToken(Symbol.ELSE, 4, 0),
[indent(5, 1)]
)
])
},
{
name: 'Doubly Nested Block, with multiple indent resets',
name: 'Doubly Nested Block, with multiple indent resets > 1',
input: [
'if yummy:',
' if in_my_tummy:',
@ -188,7 +207,7 @@ const tests: ParserTest[] = [
' else:',
' print("eek! a zombie!)',
' elif in_my_mouth:',
' print("ill be in my tummy soon!"',
' print("itll be in my tummy soon!"',
'else:',
' print("Food is food...")'
],
@ -203,25 +222,70 @@ const tests: ParserTest[] = [
[
new LexNode('if looks_like_a_mummy',
vscode.TreeItemCollapsibleState.None,
new LineToken(Symbol.IF, 2, 2, 'looks_like_a_mummy')),
new LineToken(Symbol.IF, 2, 2, 'looks_like_a_mummy'),
[indent(3, 3)]),
new LexNode('else',
vscode.TreeItemCollapsibleState.None,
new LineToken(Symbol.ELSE, 4, 2))
new LineToken(Symbol.ELSE, 4, 2),
[indent(5, 3)])
]
),
new LexNode('elif in_my_mouth',
vscode.TreeItemCollapsibleState.None,
new LineToken(Symbol.ELIF, 6, 1, 'in_my_mouth'))
new LineToken(Symbol.ELIF, 6, 1, 'in_my_mouth'),
[indent(7, 2)]
)
]
),
new LexNode('else',
vscode.TreeItemCollapsibleState.None,
new LineToken(Symbol.ELSE, 8, 0)
new LineToken(Symbol.ELSE, 8, 0),
[indent(9, 1)]
)
])
},
{
name: 'Multiline Block',
input: [
'if yummy:',
' print("you have a spot on your tummy"',
' print("eek! a zombie!)',
' print("itll be in my tummy soon!"',
'else:',
' print("Food is food...")'
],
output: root([
new LexNode('if yummy', 0, new LineToken(Symbol.IF, 0, 0, 'yummy'),
[
indent(1, 1),
indent(2, 1),
indent(3, 1),
]
),
new LexNode('else', 0, new LineToken(Symbol.ELSE, 4, 0), [indent(5, 1)])
])
}
];
/* Checks for strict equality between the tokens of a lex node tree */
const checkEq = (reference: LexNode, subject: LexNode) => {
if (!reference.children()) {
// subject should also have no children
assert.deepStrictEqual(subject.children(), null);
return;
}
assert.notStrictEqual(subject.children(), null);
assert.deepStrictEqual(reference.children()!.length, subject.children()!.length);
for (let i = 0; i < subject.children()!.length; i++) {
// compare top level nodes
assert.deepStrictEqual(reference.children()![i].token, subject.children()![i].token);
// compare all children
checkEq(reference.children()![i], subject.children()![i]);
}
};
suite('Parser Test Suite', () => {
after(() => {
vscode.window.showInformationMessage('All tests passed!');
@ -230,10 +294,8 @@ suite('Parser Test Suite', () => {
for (var t of tests) {
let currTest = t; // without this, all test calls get the last test
test(currTest.name, () => {
let result: LexNode = deparent(new Parser(currTest.input.join('\n')).parse());
process.stdout.write(Object.entries(result).toString());
assert.deepStrictEqual(result, currTest.output);
let result = new Parser(currTest.input.join('\n')).parse();
checkEq(currTest.output, result);
});
}
});

15
src/test/util.ts
View File

@ -1,6 +1,5 @@
import * as vscode from 'vscode';
import LexNode from '../pylex/node';
import { LineToken, PylexSymbol, LexNode} from '../pylex';
/**
* TODO: Eliminate need for me.
@ -50,8 +49,20 @@ function root(nodes: LexNode[] | null): LexNode {
);
}
/* short hand for returning an indentation token for a certain line and indentation */
function indent(linenr: number, indentLevel: number): LexNode {
return new LexNode('INDENT', 0, new LineToken(PylexSymbol.INDENT, linenr, indentLevel));
}
/* short hand for returning an empty token for a certain line*/
function empty(linenr: number): LexNode {
return new LexNode('EMPTY', 0, new LineToken(PylexSymbol.EMPTY, linenr, 999999));
}
export {
deparent,
root,
indent,
empty
};