feat(cli): Add dot test reporter (#19804)

This commit adds a "dot" reporter to "deno test" subcommand,
that can be activated using "--dot" flag.

It provides a concise output using:
- "." for passing test
- "," for ignored test
- "!" for failing test

User output is silenced and not printed to the console.

In non-TTY environments each result is printed on a separate line.

1 files changed, 18 insertions, 0 deletions

diff --git a/cli/tests/integration/test_tests.rs b/cli/tests/integration/test_tests.rs
index cbaea36bd..ec334aa6a 100644
--- a/cli/tests/integration/test_tests.rs
+++ b/cli/tests/integration/test_tests.rs
@@ -333,6 +333,24 @@ itest!(steps_ignored_steps {
   output: "test/steps/ignored_steps.out",
 });
 
+itest!(steps_dot_passing_steps {
+  args: "test --dot test/steps/passing_steps.ts",
+  exit_code: 0,
+  output: "test/steps/passing_steps.dot.out",
+});
+
+itest!(steps_dot_failing_steps {
+  args: "test --dot test/steps/failing_steps.ts",
+  exit_code: 1,
+  output: "test/steps/failing_steps.dot.out",
+});
+
+itest!(steps_dot_ignored_steps {
+  args: "test --dot test/steps/ignored_steps.ts",
+  exit_code: 0,
+  output: "test/steps/ignored_steps.dot.out",
+});
+
 itest!(steps_invalid_usage {
   args: "test test/steps/invalid_usage.ts",
   exit_code: 1,