@aws-cdk/core
Version:
AWS Cloud Development Kit Core Library
193 lines • 26.4 kB
JavaScript
"use strict";
const lib_1 = require("../lib");
const intrinsic_1 = require("../lib/private/intrinsic");
const evaluate_cfn_1 = require("./evaluate-cfn");
/**
* Return two Tokens, one of which evaluates to a Token directly, one which evaluates to it lazily
*/
function tokensThatResolveTo(value) {
return [
new intrinsic_1.Intrinsic(value),
lib_1.Lazy.anyValue({ produce: () => value })
];
}
module.exports = {
'string tokens can be JSONified and JSONification can be reversed'(test) {
const stack = new lib_1.Stack();
for (const token of tokensThatResolveTo('woof woof')) {
// GIVEN
const fido = { name: 'Fido', speaks: token };
// WHEN
const resolved = stack.resolve(stack.toJsonString(fido));
// THEN
test.deepEqual(evaluate_cfn_1.evaluateCFN(resolved), '{"name":"Fido","speaks":"woof woof"}');
}
test.done();
},
'string tokens can be embedded while being JSONified'(test) {
const stack = new lib_1.Stack();
for (const token of tokensThatResolveTo('woof woof')) {
// GIVEN
const fido = { name: 'Fido', speaks: `deep ${token}` };
// WHEN
const resolved = stack.resolve(stack.toJsonString(fido));
// THEN
test.deepEqual(evaluate_cfn_1.evaluateCFN(resolved), '{"name":"Fido","speaks":"deep woof woof"}');
}
test.done();
},
'constant string has correct amount of quotes applied'(test) {
const stack = new lib_1.Stack();
const inputString = 'Hello, "world"';
// WHEN
const resolved = stack.resolve(stack.toJsonString(inputString));
// THEN
test.deepEqual(evaluate_cfn_1.evaluateCFN(resolved), JSON.stringify(inputString));
test.done();
},
'integer Tokens behave correctly in stringification and JSONification'(test) {
// GIVEN
const stack = new lib_1.Stack();
const num = new intrinsic_1.Intrinsic(1);
const embedded = `the number is ${num}`;
// WHEN
test.equal(evaluate_cfn_1.evaluateCFN(stack.resolve(embedded)), "the number is 1");
test.equal(evaluate_cfn_1.evaluateCFN(stack.resolve(stack.toJsonString({ embedded }))), "{\"embedded\":\"the number is 1\"}");
test.equal(evaluate_cfn_1.evaluateCFN(stack.resolve(stack.toJsonString({ num }))), "{\"num\":1}");
test.done();
},
'tokens in strings survive additional TokenJSON.stringification()'(test) {
// GIVEN
const stack = new lib_1.Stack();
for (const token of tokensThatResolveTo('pong!')) {
// WHEN
const stringified = stack.toJsonString(`ping? ${token}`);
// THEN
test.equal(evaluate_cfn_1.evaluateCFN(stack.resolve(stringified)), '"ping? pong!"');
}
test.done();
},
'intrinsic Tokens embed correctly in JSONification'(test) {
// GIVEN
const stack = new lib_1.Stack();
const bucketName = new intrinsic_1.Intrinsic({ Ref: 'MyBucket' });
// WHEN
const resolved = stack.resolve(stack.toJsonString({ theBucket: bucketName }));
// THEN
const context = { MyBucket: 'TheName' };
test.equal(evaluate_cfn_1.evaluateCFN(resolved, context), '{"theBucket":"TheName"}');
test.done();
},
'fake intrinsics are serialized to objects'(test) {
const stack = new lib_1.Stack();
const fakeIntrinsics = new intrinsic_1.Intrinsic({
a: {
'Fn::GetArtifactAtt': {
key: 'val',
},
},
b: {
'Fn::GetParam': [
'val1',
'val2',
],
},
});
const stringified = stack.toJsonString(fakeIntrinsics);
test.equal(evaluate_cfn_1.evaluateCFN(stack.resolve(stringified)), '{"a":{"Fn::GetArtifactAtt":{"key":"val"}},"b":{"Fn::GetParam":["val1","val2"]}}');
test.done();
},
'embedded string literals in intrinsics are escaped when calling TokenJSON.stringify()'(test) {
// GIVEN
const stack = new lib_1.Stack();
const token = lib_1.Fn.join('', ['Hello', 'This\nIs', 'Very "cool"']);
// WHEN
const resolved = stack.resolve(stack.toJsonString({
literal: 'I can also "contain" quotes',
token
}));
// THEN
const expected = '{"literal":"I can also \\"contain\\" quotes","token":"HelloThis\\nIsVery \\"cool\\""}';
test.equal(evaluate_cfn_1.evaluateCFN(resolved), expected);
test.done();
},
'Tokens in Tokens are handled correctly'(test) {
// GIVEN
const stack = new lib_1.Stack();
const bucketName = new intrinsic_1.Intrinsic({ Ref: 'MyBucket' });
const combinedName = lib_1.Fn.join('', ['The bucket name is ', bucketName.toString()]);
// WHEN
const resolved = stack.resolve(stack.toJsonString({ theBucket: combinedName }));
// THEN
const context = { MyBucket: 'TheName' };
test.equal(evaluate_cfn_1.evaluateCFN(resolved, context), '{"theBucket":"The bucket name is TheName"}');
test.done();
},
'Doubly nested strings evaluate correctly in JSON context'(test) {
// WHEN
const stack = new lib_1.Stack();
const fidoSays = lib_1.Lazy.stringValue({ produce: () => 'woof' });
// WHEN
const resolved = stack.resolve(stack.toJsonString({
information: `Did you know that Fido says: ${fidoSays}`
}));
// THEN
test.deepEqual(evaluate_cfn_1.evaluateCFN(resolved), '{"information":"Did you know that Fido says: woof"}');
test.done();
},
'Doubly nested intrinsics evaluate correctly in JSON context'(test) {
// GIVEN
const stack = new lib_1.Stack();
const fidoSays = lib_1.Lazy.anyValue({ produce: () => ({ Ref: 'Something' }) });
// WHEN
const resolved = stack.resolve(stack.toJsonString({
information: `Did you know that Fido says: ${fidoSays}`
}));
// THEN
const context = { Something: 'woof woof' };
test.deepEqual(evaluate_cfn_1.evaluateCFN(resolved, context), '{"information":"Did you know that Fido says: woof woof"}');
test.done();
},
'Quoted strings in embedded JSON context are escaped'(test) {
// GIVEN
const stack = new lib_1.Stack();
const fidoSays = lib_1.Lazy.stringValue({ produce: () => '"woof"' });
// WHEN
const resolved = stack.resolve(stack.toJsonString({
information: `Did you know that Fido says: ${fidoSays}`
}));
// THEN
test.deepEqual(evaluate_cfn_1.evaluateCFN(resolved), '{"information":"Did you know that Fido says: \\"woof\\""}');
test.done();
},
'cross-stack references are also properly converted by toJsonString()'(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: stack2.toJsonString({
Stack1Id: stack1.stackId,
Stack2Id: stack2.stackId,
}) });
// THEN
const asm = app.synth();
test.deepEqual(asm.getStackByName('Stack2').template, {
Outputs: {
Stack1Id: {
Value: {
'Fn::Join': ['', [
'{"Stack1Id":"',
{ 'Fn::ImportValue': 'Stack1:ExportsOutputRefAWSStackIdB2DD5BAA' },
'","Stack2Id":"',
{ Ref: 'AWS::StackId' },
'"}'
]]
}
}
}
});
test.done();
},
};
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{ Test } from 'nodeunit';\nimport { App, CfnOutput, Fn, Lazy, Stack, Token } from '../lib';\nimport { Intrinsic } from '../lib/private/intrinsic';\nimport { evaluateCFN } from './evaluate-cfn';\n\nexport = {\n  'string tokens can be JSONified and JSONification can be reversed'(test: Test) {\n    const stack = new Stack();\n\n    for (const token of tokensThatResolveTo('woof woof')) {\n      // GIVEN\n      const fido = { name: 'Fido', speaks: token };\n\n      // WHEN\n      const resolved = stack.resolve(stack.toJsonString(fido));\n\n      // THEN\n      test.deepEqual(evaluateCFN(resolved), '{\"name\":\"Fido\",\"speaks\":\"woof woof\"}');\n    }\n\n    test.done();\n  },\n\n  'string tokens can be embedded while being JSONified'(test: Test) {\n    const stack = new Stack();\n\n    for (const token of tokensThatResolveTo('woof woof')) {\n      // GIVEN\n      const fido = { name: 'Fido', speaks: `deep ${token}` };\n\n      // WHEN\n      const resolved = stack.resolve(stack.toJsonString(fido));\n\n      // THEN\n      test.deepEqual(evaluateCFN(resolved), '{\"name\":\"Fido\",\"speaks\":\"deep woof woof\"}');\n    }\n\n    test.done();\n  },\n\n  'constant string has correct amount of quotes applied'(test: Test) {\n    const stack = new Stack();\n\n    const inputString = 'Hello, \"world\"';\n\n    // WHEN\n    const resolved = stack.resolve(stack.toJsonString(inputString));\n\n    // THEN\n    test.deepEqual(evaluateCFN(resolved), JSON.stringify(inputString));\n\n    test.done();\n  },\n\n  'integer Tokens behave correctly in stringification and JSONification'(test: Test) {\n    // GIVEN\n    const stack = new Stack();\n    const num = new Intrinsic(1);\n    const embedded = `the number is ${num}`;\n\n    // WHEN\n    test.equal(evaluateCFN(stack.resolve(embedded)), \"the number is 1\");\n    test.equal(evaluateCFN(stack.resolve(stack.toJsonString({ embedded }))), \"{\\\"embedded\\\":\\\"the number is 1\\\"}\");\n    test.equal(evaluateCFN(stack.resolve(stack.toJsonString({ num }))), \"{\\\"num\\\":1}\");\n\n    test.done();\n  },\n\n  'tokens in strings survive additional TokenJSON.stringification()'(test: Test) {\n    // GIVEN\n    const stack = new Stack();\n    for (const token of tokensThatResolveTo('pong!')) {\n      // WHEN\n      const stringified = stack.toJsonString(`ping? ${token}`);\n\n      // THEN\n      test.equal(evaluateCFN(stack.resolve(stringified)), '\"ping? pong!\"');\n    }\n\n    test.done();\n  },\n\n  'intrinsic Tokens embed correctly in JSONification'(test: Test) {\n    // GIVEN\n    const stack = new Stack();\n    const bucketName = new Intrinsic({ Ref: 'MyBucket' });\n\n    // WHEN\n    const resolved = stack.resolve(stack.toJsonString({ theBucket: bucketName }));\n\n    // THEN\n    const context = {MyBucket: 'TheName'};\n    test.equal(evaluateCFN(resolved, context), '{\"theBucket\":\"TheName\"}');\n\n    test.done();\n  },\n\n  'fake intrinsics are serialized to objects'(test: Test) {\n    const stack = new Stack();\n    const fakeIntrinsics = new Intrinsic({\n      a: {\n        'Fn::GetArtifactAtt': {\n          key: 'val',\n        },\n      },\n      b: {\n        'Fn::GetParam': [\n          'val1',\n          'val2',\n        ],\n      },\n    });\n\n    const stringified = stack.toJsonString(fakeIntrinsics);\n    test.equal(evaluateCFN(stack.resolve(stringified)),\n        '{\"a\":{\"Fn::GetArtifactAtt\":{\"key\":\"val\"}},\"b\":{\"Fn::GetParam\":[\"val1\",\"val2\"]}}');\n\n    test.done();\n  },\n\n  'embedded string literals in intrinsics are escaped when calling TokenJSON.stringify()'(test: Test) {\n    // GIVEN\n    const stack = new Stack();\n    const token = Fn.join('', [ 'Hello', 'This\\nIs', 'Very \"cool\"' ]);\n\n    // WHEN\n    const resolved = stack.resolve(stack.toJsonString({\n      literal: 'I can also \"contain\" quotes',\n      token\n    }));\n\n    // THEN\n    const expected = '{\"literal\":\"I can also \\\\\"contain\\\\\" quotes\",\"token\":\"HelloThis\\\\nIsVery \\\\\"cool\\\\\"\"}';\n    test.equal(evaluateCFN(resolved), expected);\n\n    test.done();\n  },\n\n  'Tokens in Tokens are handled correctly'(test: Test) {\n    // GIVEN\n    const stack = new Stack();\n    const bucketName = new Intrinsic({ Ref: 'MyBucket' });\n    const combinedName = Fn.join('', [ 'The bucket name is ', bucketName.toString() ]);\n\n    // WHEN\n    const resolved = stack.resolve(stack.toJsonString({ theBucket: combinedName }));\n\n    // THEN\n    const context = {MyBucket: 'TheName'};\n    test.equal(evaluateCFN(resolved, context), '{\"theBucket\":\"The bucket name is TheName\"}');\n\n    test.done();\n  },\n\n  'Doubly nested strings evaluate correctly in JSON context'(test: Test) {\n    // WHEN\n    const stack = new Stack();\n    const fidoSays = Lazy.stringValue({ produce: () => 'woof' });\n\n    // WHEN\n    const resolved = stack.resolve(stack.toJsonString({\n      information: `Did you know that Fido says: ${fidoSays}`\n    }));\n\n    // THEN\n    test.deepEqual(evaluateCFN(resolved), '{\"information\":\"Did you know that Fido says: woof\"}');\n\n    test.done();\n  },\n\n  'Doubly nested intrinsics evaluate correctly in JSON context'(test: Test) {\n    // GIVEN\n    const stack = new Stack();\n    const fidoSays = Lazy.anyValue({ produce: () => ({ Ref: 'Something' }) });\n\n    // WHEN\n    const resolved = stack.resolve(stack.toJsonString({\n      information: `Did you know that Fido says: ${fidoSays}`\n    }));\n\n    // THEN\n    const context = {Something: 'woof woof'};\n    test.deepEqual(evaluateCFN(resolved, context), '{\"information\":\"Did you know that Fido says: woof woof\"}');\n\n    test.done();\n  },\n\n  'Quoted strings in embedded JSON context are escaped'(test: Test) {\n    // GIVEN\n    const stack = new Stack();\n    const fidoSays = Lazy.stringValue({ produce: () => '\"woof\"' });\n\n    // WHEN\n    const resolved = stack.resolve(stack.toJsonString({\n      information: `Did you know that Fido says: ${fidoSays}`\n    }));\n\n    // THEN\n    test.deepEqual(evaluateCFN(resolved), '{\"information\":\"Did you know that Fido says: \\\\\"woof\\\\\"\"}');\n\n    test.done();\n  },\n\n  'cross-stack references are also properly converted by toJsonString()'(test: 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', { value: stack2.toJsonString({\n      Stack1Id: stack1.stackId,\n      Stack2Id: stack2.stackId,\n    })});\n\n    // THEN\n    const asm = app.synth();\n    test.deepEqual(asm.getStackByName('Stack2').template, {\n      Outputs: {\n        Stack1Id: {\n          Value: {\n            'Fn::Join': [ '', [\n              '{\"Stack1Id\":\"',\n              { 'Fn::ImportValue': 'Stack1:ExportsOutputRefAWSStackIdB2DD5BAA' },\n              '\",\"Stack2Id\":\"',\n              { Ref: 'AWS::StackId' },\n              '\"}'\n            ] ]\n          }\n        }\n      }\n    });\n\n    test.done();\n  },\n};\n\n/**\n * Return two Tokens, one of which evaluates to a Token directly, one which evaluates to it lazily\n */\nfunction tokensThatResolveTo(value: any): Token[] {\n  return [\n    new Intrinsic(value),\n    Lazy.anyValue({ produce: () => value })\n  ];\n}\n"]}