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Jest parameterized tests doesn't run correctly  #2399

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Description

Expected Behavior

Test Explorer should list down parameterized tests independently and run them correctly

Actual Behavior

Test explorer only shows and runs the first test and it also breaks when you try to include parameters in the test name.

  • NTVS Version: 1.5.40404.3
  • Visual Studio Version: 2022
  • Node.js Version: 16.15.1
Steps to Reproduce
  1. Create a new project using docs : https://docs.microsoft.com/en-us/visualstudio/javascript/tutorial-create-react-app?view=vs-2022
  2. In app.test.js, added a parameterized jest test.
test.each([
    [true, true],
    [false, false]
])('dummy test', (a, b) => {
    expect(a).toBe(b);
});
  1. When I build the project and open test explorer, it was expected to show two tests, but shows a single one
    image

  2. If I change the test to something which is expected to fail, like

test.each([
    [true, true],
    [false, true]
])('dummy test', (a, b) => {
    expect(a).toBe(b);
});

The test explorer shows that the test still passes, which is because it seems to only run the first test

  1. If I change the test name to be something parameterized,
test.each([
    [true, true],
    [false, false]
])('expect %p to be %p', (a, b) => {
    expect(a).toBe(b);
});

then the test fails in test explorer and test explorer doesn't show it correctly
image

Activity

  1. changed the title [-]Jest parameterized doesn't run correctly [/-] [+]Jest parameterized tests doesn't run correctly [/+] on Jun 21, 2022
  2. mjabl commented on Dec 21, 2023

    @mjabl

    Same issue here.

  3. jedgit commented on Nov 28, 2024

    @jedgit

    Having the exact same issue. Are there any plans to look at this? Seems like quite a large limitation to running jest tests in Visual Studio.

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