Merge branch 'stringers' of https://github.com/norbs57/go into stringers

docs/TESTS.md

@@ -7,6 +7,15 @@ $ cd exercism/project/directory/go/leap
 $ go test
 ```
 
+# Tests with Data Race Detector
+
+In addition to running `go test`, some exercises should be run with a flag for [data race detector](https://go.dev/doc/articles/race_detector) to check that your solution does not introduce data race bugs. You will find a reminder to run tests with the data race detector flag `-race` in the relevant exercises. Run `go test -race` to check for data race. For example:
+
+```bash
+$ cd exercism/project/directory/go/bank-account
+$ go test -race
+```
+
 ## Running benchmarks
 
 Most exercises contain benchmarks, that you can use to determine how changes to your solution affect its performance. To run the benchmarks for an exercise use the command `go test -v --bench . --benchmem` inside the exercise directory.

exercises/concept/interest-is-interesting/.docs/instructions.md

@@ -4,10 +4,10 @@ In this exercise you'll be working with savings accounts.
 Each year, the balance of your savings account is updated based on its interest rate.
 The interest rate your bank gives you depends on the amount of money in your account (its balance):
 
-- 3.213% for a negative balance (balance gets more negative).
-- 0.5% for a positive balance less than `1000` dollars.
-- 1.621% for a positive balance greater or equal than `1000` dollars and less than `5000` dollars.
-- 2.475% for a positive balance greater or equal than `5000` dollars.
+- 3.213% for a balance less than `0` dollars (balance gets more negative).
+- 0.5% for a balance greater than or equal to `0` dollars, and less than `1000` dollars.
+- 1.621% for a balance greater than or equal to `1000` dollars, and less than `5000` dollars.
+- 2.475% for a balance greater than or equal to `5000` dollars.
 
 You have four tasks, each of which will deal your balance and its interest rate.
 

exercises/practice/bank-account/.docs/instructions.append.md

@@ -14,6 +14,14 @@ For example: multiple goroutines may be depositing and withdrawing money
 simultaneously, two withdrawals occurring concurrently should not be able
 to bring the balance into the negative.
 
+When working locally, you can test that your code handles concurrency properly and does not introduce
+data races, run tests with `-race` flag on.
+
+```bash
+$ cd exercism/project/directory/go/bank-account
+$ go test -race
+```
+
 If you are new to concurrent operations in Go it will be worth looking
 at the sync package, specifically Mutexes: