When using the JEST matcher toMatchObject, my objective is to ensure that an object contains certain properties with static values, while other values should match specific regular expressions.
The issue I'm facing is that when a static value doesn't match, the output displays mismatches in the regular expression values as well, even though they are correct.
Code:
test("asdf", async () => {
const actual = {
a: "a_value",
b: "b_value",
c: "c_value"
}
expect(actual).toMatchObject({
a: expect.stringMatching("[a-z]_value"),
b: "b_value",
})
expect(actual).toMatchObject({
a: expect.stringMatching("[a-z]_value"),
b: "B_VALUE",
})
})
Output:
Expected value to match object:
{"a": StringMatching /[a-z]_value/, "b": "B_VALUE"}
Received:
{"a": "a_value", "b": "b_value", "c": "c_value"}
Difference:
- Expected
+ Received
Object {
- "a": StringMatching /[a-z]_value/,
- "b": "B_VALUE",
+ "a": "a_value",
+ "b": "b_value",
}
I would like the output to only display mismatched values, ignoring the regular expression since it is correct:
Object {
- "b": "B_VALUE",
+ "b": "b_value",