Simple TypeScript Testing with Chutzpah not Working - unit-testing

Question

I'm trying to run the most basic of TypeScript tests using Jasmine and Chutzpah and I just can't get it to work. Here is the source file:
class Simple {
public easyTest() {
return 5;
}
}
Here is the spec:
/// <reference path="../../../scripts/typings/jasmine/jasmine.d.ts" />
/// <reference path="../../../src/typescript/classSimple.ts" />
describe("Simple Calculations", () => {
it("should return true", () => {
var simpl = new Simple();
expect(simpl.easyTest()).toBe(5);
});
});
Here is my chutzpah.json file:
{
"RootReferencePathMode": "SettingsFileDirectory",
"Framework": "jasmine",
"Compile": {
"Mode": "External",
"Extensions": [ ".ts" ],
"ExtensionsWithNoOutput": [ ".d.ts" ]
},
"References": [
{ "Path": "../../../src/typescript/classSimple.ts" }
],
"Tests": [
{ "Path": "simpleSpec.ts" }
],
"EnableTracing": true
}
Here is the folder structure
TestProject.sln
-src
--typescript
---classSimple.ts
-tests
--jasmine
---typescript
----chutzpah.json
----simpleSpec.ts
This VS.NET project is set to compile TypeScript upon save and I'm physically looking at the transpiled JavaScript output: classSimple.js in the exact same directory next to classSimple.ts. Yet when I run the spec using Chutzpah I get the following:
Message:Chutzpah run started in mode Execution with parallelism set to
4 Message:Building test context for
C:\dev\TestProject\tests\jasmine\typescript\simpleSpec.ts
Message:Building test context for
'C:\dev\TestProject\tests\jasmine\typescript\simpleSpec.ts'
Message:Test file
c:\dev\TestProject\tests\jasmine\typescript\simplespec.ts matched test
file path from settings file Message:Investigating reference file path
'../../../src/typescript/classSimple.ts' Message:Added file
'C:\dev\TestProject\src\typescript\classSimple.ts' to referenced
files. Local: True, IncludeInTestHarness: True Message:Processing
referenced file 'C:\dev\TestProject\src\typescript\classSimple.ts' for
expanded references Message:Added framework dependency
'C:\Users\myself\AppData\Local\Microsoft\VisualStudio\14.0\Extensions\mfv4e3ra.luv\TestFiles\jasmine\v2\jasmine_favicon.png' to referenced files Message:Added framework dependency
'C:\Users\myself\AppData\Local\Microsoft\VisualStudio\14.0\Extensions\mfv4e3ra.luv\TestFiles\jasmine\v2\boot.js'
to referenced files Message:Added framework dependency
'C:\Users\myself\AppData\Local\Microsoft\VisualStudio\14.0\Extensions\mfv4e3ra.luv\TestFiles\jasmine\v2\jasmine-html.js'
to referenced files Message:Added framework dependency
'C:\Users\myself\AppData\Local\Microsoft\VisualStudio\14.0\Extensions\mfv4e3ra.luv\TestFiles\jasmine\v2\jasmine.js'
to referenced files Message:Added framework dependency
'C:\Users\myself\AppData\Local\Microsoft\VisualStudio\14.0\Extensions\mfv4e3ra.luv\TestFiles\jasmine\v2\jasmine.css'
to referenced files Message:Added framework dependency
'C:\Users\myself\AppData\Local\Microsoft\VisualStudio\14.0\Extensions\mfv4e3ra.luv\TestFiles\chutzpah_boot.js'
to referenced files Message:Finished building test context for
C:\dev\TestProject\tests\jasmine\typescript\simpleSpec.ts Error: 0 :
Time:22:47:48.6888513; Thread:23; Message:Can't find location for
generated path on C:\dev\TestProject\src\typescript\classSimple.ts
Warning: 0 : Time:22:47:48.6978503; Thread:23; Message:Chutzpah
determined generated .js files are missing but the compile mode is
External so Chutzpah can't compile them. Test results may be wrong.
Information: 0 : Time:22:47:48.7038522; Thread:23; Message:Found
generated path for
C:\dev\TestProject\tests\jasmine\typescript\simpleSpec.ts at
c:\dev\TestProject\tests\jasmine\typescript\simpleSpec.js Error: 0 :
Time:22:47:48.7088508; Thread:23; Message:Couldn't find generated path
for C:\dev\TestProject\src\typescript\classSimple.ts at
And that's it - it just cuts off on the end and nothing happens. The thing is, I see the .js files exactly in the location stated within the trace above, but Chutzpah is claiming Couldn't find generated path for...
This is as simple as it gets for unit testing. I know the tests work independently of the .ts files because if I run just the .js files the tests pass.
What am I doing incorrectly?

Answer 1

Thanks for posting the very detailed repro. You are hitting an issue I have seen a couple times. Since your chutzpah.json is nested in your test folder you need to specify the folder path mapping that chutzpah should use for determining how to map from source to output folder. To do this just change your chutzpah.json to:
{
"RootReferencePathMode": "SettingsFileDirectory",
"Framework": "jasmine",
"Compile": {
"Mode": "External",
"Extensions": [ ".ts" ],
"ExtensionsWithNoOutput": [ ".d.ts" ],
"Paths": [
{ "SourcePath": "../../../", "OutputPath": "../../../"}
]
},
"References": [
{ "Path": "../../../src/typescript/classSimple.ts" }
],
"Tests": [
{ "Path": "simpleSpec.ts" }
],
"EnableTracing": true,
"TraceFilePath": "trace.txt"
}
The other workaround would be to just place the chutzpah.json at the root of your project.
I need to look into making Chutzpah better to avoid this. I think I will look at letting chutzpah in this situation just assume the file is co-located to avoid this common pitfall.

Answer 2

Google led me here for a similar issue:
Some new tests in my Chutzpah project are written in TypeScript and compiled into a single outfile:
tsconfig.json
"compilerOptions": {
"noImplicitAny": true,
"target": "es5",
"module": "none",
"outFile": "./Tests/mytests-ts.js",
"sourceMap": true
}
Chutzpah couldn't find the *.ts files
Chutzpah Error: System.IO.FileNotFoundException: Couldn't find generated path for D:\Code\ChutzpahProject\Scripts\DateServiceMock.ts
until I used the Paths option:
chutzpah.json
"Compile": {
"Extensions": [ ".ts" ],
"ExtensionsWithNoOutput": [ ".d.ts" ],
"Executable": "build-ts.cmd",
"Paths": [
{ "OutputPath": "Tests/mytests-tests-ts.js" }
]
},
This feels like it could have been a comment to #matthew-manela's answer...I think.