@aws-cdk/core
Version:
AWS Cloud Development Kit Core Library
156 lines • 25.7 kB
JavaScript
"use strict";
const fc = require("fast-check");
const _ = require("lodash");
const nodeunit = require("nodeunit");
const lib_1 = require("../lib");
const intrinsic_1 = require("../lib/private/intrinsic");
function asyncTest(cb) {
return async (test) => {
let error;
try {
await cb(test);
}
catch (e) {
error = e;
}
finally {
test.doesNotThrow(() => {
if (error) {
throw error;
}
});
test.done();
}
};
}
const nonEmptyString = fc.string(1, 16);
const tokenish = fc.array(nonEmptyString, 2, 2).map(arr => ({ [arr[0]]: arr[1] }));
const anyValue = fc.oneof(nonEmptyString, tokenish);
function stringListToken(o) {
return lib_1.Token.asList(new intrinsic_1.Intrinsic(o));
}
function stringToken(o) {
return lib_1.Token.asString(new intrinsic_1.Intrinsic(o));
}
module.exports = nodeunit.testCase({
'eager resolution for non-tokens': {
'Fn.select'(test) {
test.deepEqual(lib_1.Fn.select(2, ['hello', 'you', 'dude']), 'dude');
test.done();
},
'Fn.split'(test) {
test.deepEqual(lib_1.Fn.split(':', 'hello:world:yeah'), ['hello', 'world', 'yeah']);
test.done();
},
},
'FnJoin': {
'rejects empty list of arguments to join'(test) {
test.throws(() => lib_1.Fn.join('.', []));
test.done();
},
'collapse nested FnJoins even if they contain tokens'(test) {
const stack = new lib_1.Stack();
const obj = lib_1.Fn.join('', [
'a',
lib_1.Fn.join('', [lib_1.Fn.getAtt('a', 'bc').toString(), 'c']),
'd',
]);
test.deepEqual(stack.resolve(obj), { 'Fn::Join': ['',
[
'a',
{ 'Fn::GetAtt': ['a', 'bc'] },
'cd',
],
] });
test.done();
},
'resolves to the value if only one value is joined': asyncTest(async () => {
const stack = new lib_1.Stack();
fc.assert(fc.property(fc.string(), anyValue, (delimiter, value) => _.isEqual(stack.resolve(lib_1.Fn.join(delimiter, [value])), value)), { verbose: true });
}),
'pre-concatenates string literals': asyncTest(async () => {
const stack = new lib_1.Stack();
fc.assert(fc.property(fc.string(), fc.array(nonEmptyString, 1, 15), (delimiter, values) => stack.resolve(lib_1.Fn.join(delimiter, values)) === values.join(delimiter)), { verbose: true });
}),
'pre-concatenates around tokens': asyncTest(async () => {
const stack = new lib_1.Stack();
fc.assert(fc.property(fc.string(), fc.array(nonEmptyString, 1, 3), tokenish, fc.array(nonEmptyString, 1, 3), (delimiter, prefix, obj, suffix) => _.isEqual(stack.resolve(lib_1.Fn.join(delimiter, [...prefix, stringToken(obj), ...suffix])), { 'Fn::Join': [delimiter, [prefix.join(delimiter), obj, suffix.join(delimiter)]] })), { verbose: true, seed: 1539874645005, path: '0:0:0:0:0:0:0:0:0' });
}),
'flattens joins nested under joins with same delimiter': asyncTest(async () => {
const stack = new lib_1.Stack();
fc.assert(fc.property(fc.string(), fc.array(anyValue), fc.array(anyValue, 1, 3), fc.array(anyValue), (delimiter, prefix, nested, suffix) =>
// Gonna test
_.isEqual(stack.resolve(lib_1.Fn.join(delimiter, [...prefix, lib_1.Fn.join(delimiter, nested), ...suffix])), stack.resolve(lib_1.Fn.join(delimiter, [...prefix, ...nested, ...suffix])))), { verbose: true });
}),
'does not flatten joins nested under joins with different delimiter': asyncTest(async () => {
const stack = new lib_1.Stack();
fc.assert(fc.property(fc.string(), fc.string(), fc.array(anyValue, 1, 3), fc.array(tokenish, 2, 3), fc.array(anyValue, 3), (delimiter1, delimiter2, prefix, nested, suffix) => {
fc.pre(delimiter1 !== delimiter2);
const join = lib_1.Fn.join(delimiter1, [...prefix, lib_1.Fn.join(delimiter2, stringListToken(nested)), ...suffix]);
const resolved = stack.resolve(join);
return resolved['Fn::Join'][1].find((e) => typeof e === 'object'
&& ('Fn::Join' in e)
&& e['Fn::Join'][0] === delimiter2) != null;
}), { verbose: true });
}),
'Fn::EachMemberIn': asyncTest(async (test) => {
const stack = new lib_1.Stack();
const eachMemberIn = lib_1.Fn.conditionEachMemberIn(lib_1.Fn.valueOfAll('AWS::EC2::Subnet::Id', 'VpcId'), lib_1.Fn.refAll('AWS::EC2::VPC::Id'));
test.deepEqual(stack.resolve(eachMemberIn), {
'Fn::EachMemberIn': [
{ 'Fn::ValueOfAll': ['AWS::EC2::Subnet::Id', 'VpcId'] },
{ 'Fn::RefAll': 'AWS::EC2::VPC::Id' },
],
});
}),
'cross-stack FnJoin elements are properly resolved': asyncTest(async (test) => {
// GIVEN
const app = new lib_1.App();
const stack1 = new lib_1.Stack(app, 'Stack1');
const stack2 = new lib_1.Stack(app, 'Stack2');
// WHEN
new lib_1.CfnOutput(stack2, 'Stack1Id', {
value: lib_1.Fn.join(' = ', ['Stack1Id', stack1.stackId]),
});
// THEN
const template = app.synth().getStackByName('Stack2').template;
test.deepEqual(template, {
Outputs: {
Stack1Id: {
Value: {
'Fn::Join': [' = ', [
'Stack1Id',
{ 'Fn::ImportValue': 'Stack1:ExportsOutputRefAWSStackIdB2DD5BAA' },
]],
},
},
},
});
}),
},
'Ref': {
'returns a reference given a logical name'(test) {
const stack = new lib_1.Stack();
test.deepEqual(stack.resolve(lib_1.Fn.ref('hello')), {
Ref: 'hello',
});
test.done();
},
},
'nested Fn::Join with list token'(test) {
const stack = new lib_1.Stack();
const inner = lib_1.Fn.join(',', lib_1.Token.asList({ NotReallyList: true }));
const outer = lib_1.Fn.join(',', [inner, 'Foo']);
test.deepEqual(stack.resolve(outer), {
'Fn::Join': [
',',
[
{ 'Fn::Join': [',', { NotReallyList: true }] },
'Foo',
],
],
});
test.done();
},
});
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* as fc from 'fast-check';\nimport * as _ from 'lodash';\nimport * as nodeunit from 'nodeunit';\nimport { App, CfnOutput, Fn, Stack, Token } from '../lib';\nimport { Intrinsic } from '../lib/private/intrinsic';\n\nfunction asyncTest(cb: (test: nodeunit.Test) => Promise<void>): (test: nodeunit.Test) => void {\n  return async (test: nodeunit.Test) => {\n    let error: Error;\n    try {\n      await cb(test);\n    } catch (e) {\n      error = e;\n    } finally {\n      test.doesNotThrow(() => {\n        if (error) { throw error; }\n      });\n      test.done();\n    }\n  };\n}\n\nconst nonEmptyString = fc.string(1, 16);\nconst tokenish = fc.array(nonEmptyString, 2, 2).map(arr => ({ [arr[0]]: arr[1] }));\nconst anyValue = fc.oneof<any>(nonEmptyString, tokenish);\n\nexport = nodeunit.testCase({\n  'eager resolution for non-tokens': {\n    'Fn.select'(test: nodeunit.Test) {\n      test.deepEqual(Fn.select(2, [ 'hello', 'you', 'dude' ]), 'dude');\n      test.done();\n    },\n    'Fn.split'(test: nodeunit.Test) {\n      test.deepEqual(Fn.split(':', 'hello:world:yeah'), [ 'hello', 'world', 'yeah' ]);\n      test.done();\n    },\n  },\n  'FnJoin': {\n    'rejects empty list of arguments to join'(test: nodeunit.Test) {\n      test.throws(() => Fn.join('.', []));\n      test.done();\n    },\n    'collapse nested FnJoins even if they contain tokens'(test: nodeunit.Test) {\n      const stack = new Stack();\n\n      const obj = Fn.join('', [\n        'a',\n        Fn.join('', [Fn.getAtt('a', 'bc').toString(), 'c']),\n        'd',\n      ]);\n\n      test.deepEqual(stack.resolve(obj), { 'Fn::Join': [ '',\n        [\n          'a',\n          { 'Fn::GetAtt': ['a', 'bc'] },\n          'cd',\n        ],\n      ]});\n\n      test.done();\n    },\n    'resolves to the value if only one value is joined': asyncTest(async () => {\n      const stack = new Stack();\n      fc.assert(\n        fc.property(\n          fc.string(), anyValue,\n          (delimiter, value) => _.isEqual(stack.resolve(Fn.join(delimiter, [value as string])), value),\n        ),\n        { verbose: true },\n      );\n    }),\n    'pre-concatenates string literals': asyncTest(async () => {\n      const stack = new Stack();\n      fc.assert(\n        fc.property(\n          fc.string(), fc.array(nonEmptyString, 1, 15),\n          (delimiter, values) => stack.resolve(Fn.join(delimiter, values)) === values.join(delimiter),\n        ),\n        { verbose: true },\n      );\n    }),\n    'pre-concatenates around tokens': asyncTest(async () => {\n      const stack = new Stack();\n      fc.assert(\n        fc.property(\n          fc.string(), fc.array(nonEmptyString, 1, 3), tokenish, fc.array(nonEmptyString, 1, 3),\n          (delimiter, prefix, obj, suffix) =>\n            _.isEqual(stack.resolve(Fn.join(delimiter, [...prefix, stringToken(obj), ...suffix])),\n              { 'Fn::Join': [delimiter, [prefix.join(delimiter), obj, suffix.join(delimiter)]] }),\n        ),\n        { verbose: true, seed: 1539874645005, path: '0:0:0:0:0:0:0:0:0' },\n      );\n    }),\n    'flattens joins nested under joins with same delimiter': asyncTest(async () => {\n      const stack = new Stack();\n      fc.assert(\n        fc.property(\n          fc.string(), fc.array(anyValue),\n          fc.array(anyValue, 1, 3),\n          fc.array(anyValue),\n          (delimiter, prefix, nested, suffix) =>\n            // Gonna test\n            _.isEqual(stack.resolve(Fn.join(delimiter, [...prefix as string[], Fn.join(delimiter, nested as string[]), ...suffix as string[]])),\n              stack.resolve(Fn.join(delimiter, [...prefix as string[], ...nested as string[], ...suffix as string[]]))),\n        ),\n        { verbose: true },\n      );\n    }),\n    'does not flatten joins nested under joins with different delimiter': asyncTest(async () => {\n      const stack = new Stack();\n      fc.assert(\n        fc.property(\n          fc.string(), fc.string(),\n          fc.array(anyValue, 1, 3),\n          fc.array(tokenish, 2, 3),\n          fc.array(anyValue, 3),\n          (delimiter1, delimiter2, prefix,  nested, suffix) => {\n            fc.pre(delimiter1 !== delimiter2);\n            const join = Fn.join(delimiter1, [...prefix as string[], Fn.join(delimiter2, stringListToken(nested)), ...suffix as string[]]);\n            const resolved = stack.resolve(join);\n            return resolved['Fn::Join'][1].find((e: any) => typeof e === 'object'\n                                                        && ('Fn::Join' in e)\n                                                        && e['Fn::Join'][0] === delimiter2) != null;\n          },\n        ),\n        { verbose: true },\n      );\n    }),\n    'Fn::EachMemberIn': asyncTest(async (test) => {\n      const stack = new Stack();\n      const eachMemberIn = Fn.conditionEachMemberIn(\n        Fn.valueOfAll('AWS::EC2::Subnet::Id', 'VpcId'),\n        Fn.refAll('AWS::EC2::VPC::Id'),\n      );\n      test.deepEqual(stack.resolve(eachMemberIn), {\n        'Fn::EachMemberIn': [\n          { 'Fn::ValueOfAll': ['AWS::EC2::Subnet::Id', 'VpcId'] },\n          { 'Fn::RefAll': 'AWS::EC2::VPC::Id'},\n        ],\n      });\n    }),\n\n    'cross-stack FnJoin elements are properly resolved': asyncTest(async (test) => {\n      // GIVEN\n      const app = new App();\n      const stack1 = new Stack(app, 'Stack1');\n      const stack2 = new Stack(app, 'Stack2');\n\n      // WHEN\n      new CfnOutput(stack2, 'Stack1Id', {\n        value: Fn.join(' = ', [ 'Stack1Id', stack1.stackId ]),\n      });\n\n      // THEN\n      const template = app.synth().getStackByName('Stack2').template;\n\n      test.deepEqual(template, {\n        Outputs: {\n          Stack1Id: {\n            Value: {\n              'Fn::Join': [' = ', [\n                'Stack1Id',\n                { 'Fn::ImportValue': 'Stack1:ExportsOutputRefAWSStackIdB2DD5BAA' },\n              ]],\n            },\n          },\n        },\n      });\n    }),\n  },\n  'Ref': {\n    'returns a reference given a logical name'(test: nodeunit.Test) {\n      const stack = new Stack();\n      test.deepEqual(stack.resolve(Fn.ref('hello')), {\n        Ref: 'hello',\n      });\n      test.done();\n    },\n  },\n  'nested Fn::Join with list token'(test: nodeunit.Test) {\n    const stack = new Stack();\n    const inner = Fn.join(',', Token.asList({ NotReallyList: true }));\n    const outer = Fn.join(',', [ inner, 'Foo' ]);\n    test.deepEqual(stack.resolve(outer), {\n      'Fn::Join': [\n        ',',\n        [\n          { 'Fn::Join': [ ',', { NotReallyList: true } ] },\n          'Foo',\n        ],\n      ],\n    });\n    test.done();\n  },\n});\n\nfunction stringListToken(o: any): string[] {\n  return Token.asList(new Intrinsic(o));\n}\nfunction stringToken(o: any): string {\n  return Token.asString(new Intrinsic(o));\n}\n"]}