8000 feat: add throwing errors for bad shadows by BeksOmega · Pull Request #5330 · google/blockly · GitHub
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feat: add throwing errors for bad shadows #5330

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Merged
merged 2 commits into from
Aug 23, 2021
Merged

feat: add throwing errors for bad shadows #5330

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f7c1384
fix: add throwing errors for bad shadows
BeksOmega Aug 9, 2021
7e4a68f
tests: add tests for setShadowDom
BeksOmega Aug 20, 2021
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21 changes: 16 additions & 5 deletions core/connection.js
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Original file line number Diff line number Diff line change
Expand Up @@ -781,12 +781,23 @@ Blockly.Connection.prototype.createShadowBlock_ = function(attemptToConnect) {
if (shadowDom) {
blockShadow = Blockly.Xml.domToBlock(shadowDom, parentBlock.workspace);
if (attemptToConnect) {
if (blockShadow.outputConnection) {
this.connect(blockShadow.outputConnection);
} else if (blockShadow.previousConnection) {
this.connect(blockShadow.previousConnection);
if (this.type == Blockly.connectionTypes.INPUT_VALUE) {
if (!blockShadow.outputConnection) {
throw new Error('Shadow block is missing an output connection');
}
if (!this.connect(blockShadow.outputConnection)) {
throw new Error('Could not connect shadow block to connection');
}
} else if (this.type == Blockly.connectionTypes.NEXT_STATEMENT) {
if (!blockShadow.previousConnection) {
throw new Error('Shadow block is missing previous connection');
}
if (!this.connect(blockShadow.previousConnection)) {
throw new Error('Could not connect shadow block to connection');
}
} else {
throw Error('Shadow block does not have output or previous statement.');
throw new Error(
'Cannot connect a shadow block to a previous/output connection');
}
}
return blockShadow;
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97 changes: 97 additions & 0 deletions tests/mocha/connection_test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -1292,6 +1292,56 @@ suite('Connection', function() {
assertNextNotHasBlock(parent);
});
});

suite('Invalid', function() {
test('Attach to output', function() {
const block = this.workspace.newBlock('row_block');
chai.assert.throws(() =>
block.outputConnection.setShadowDom(Blockly.Xml.textToDom(
'<block type="row_block">')));
});

test('Attach to previous', function() {
const block = this.workspace.newBlock('stack_block');
chai.assert.throws(() =>
block.previousConnection.setShadowDom(Blockly.Xml.textToDom(
'<block type="stack_block">')));
});

test('Missing output', function() {
const block = this.workspace.newBlock('row_block');
chai.assert.throws(() =>
block.outputConnection.setShadowDom(Blockly.Xml.textToDom(
'<block type="stack_block">')));
});

test('Missing previous', function() {
const block = this.workspace.newBlock('stack_block');
chai.assert.throws(() =>
block.previousConnection.setShadowDom(Blockly.Xml.textToDom(
'<block type="row_block">')));
});

test('Invalid connection checks, output', function() {
const block = this.workspace.newBlock('logic_operation');
chai.assert.throws(() =>
block.getInput('A').connection.setShadowDom(
Blockly.Xml.textToDom('<block type="stack_block">')));
});

test('Invalid connection checks, previous', function() {
Blockly.defineBlocksWithJsonArray([{
"type": "stack_checks_block",
"message0": "",
"previousStatement": "check 1",
"nextStatement": "check 2"
}]);
const block = this.workspace.newBlock('stack_checks_block');
chai.assert.throws(() =>
block.nextConnection.setShadowDom(Blockly.Xml.textToDom(
'<block type="stack_checks_block">')));
});
});
});

suite('setShadowState', function() {
Expand Down Expand Up @@ -2512,6 +2562,53 @@ suite('Connection', function() {
assertNextNotHasBlock(parent);
});
});

suite('Invalid', function() {
test('Attach to output', function() {
const block = this.workspace.newBlock('row_block');
chai.assert.throws(() =>
block.outputConnection.setShadowState({'type': 'row_block'}));
});

test('Attach to previous', function() {
const block = this.workspace.newBlock('stack_block');
chai.assert.throws(() =>
block.previousConnection.setShadowState(
{'type': 'stack_block'}));
});

test('Missing output', function() {
const block = this.workspace.newBlock('row_block');
chai.assert.throws(() =>
block.outputConnection.setShadowState({'type': 'stack_block'}));
});

test('Missing previous', function() {
const block = this.workspace.newBlock('stack_block');
chai.assert.throws(() =>
block.previousConnection.setShadowState({'type': 'row_block'}));
});

test('Invalid connection checks, output', function() {
const block = this.workspace.newBlock('logic_operation');
chai.assert.throws(() =>
block.getInput('A').connection.setShadowState(
{'type': 'math_number'}));
});

test('Invalid connection checks, previous', function() {
Blockly.defineBlocksWithJsonArray([{
"type": "stack_checks_block",
"message0": "",
"previousStatement": "check 1",
"nextStatement": "check 2"
}]);
const block = this.workspace.newBlock('stack_checks_block');
chai.assert.throws(() =>
block.nextConnection.setShadowState(
{'type': 'stack_checks_block'}));
});
});
});
});
});
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