Merge pull request #3880 from jeffreyrack/3829-progress_display_mode

#3829 -- Add the ability to show test progress as number of tests completed instead of a percent.

changelog/3829.feature.rst

@@ -0,0 +1 @@
+Added the ``count`` option to ``console_output_style`` to enable displaying the progress as a count instead of a percentage.

doc/en/reference.rst

@@ -940,6 +940,7 @@ passed multiple times. The expected format is ``name=value``. For example::
 
    * ``classic``: classic pytest output.
    * ``progress``: like classic pytest output, but with a progress indicator.
+   * ``count``: like progress, but shows progress as the number of tests completed instead of a percent.
 
    The default is ``progress``, but you can fallback to ``classic`` if you prefer or
    the new mode is causing unexpected problems:

src/_pytest/terminal.py

@@ -254,7 +254,7 @@ class TerminalReporter(object):
         # do not show progress if we are showing fixture setup/teardown
         if self.config.getoption("setupshow"):
             return False
-        return self.config.getini("console_output_style") == "progress"
+        return self.config.getini("console_output_style") in ("progress", "count")
 
     def hasopt(self, char):
         char = {"xfailed": "x", "skipped": "s"}.get(char, char)
@@ -404,6 +404,12 @@ class TerminalReporter(object):
                 self.currentfspath = -2
 
     def pytest_runtest_logfinish(self, nodeid):
+        if self.config.getini("console_output_style") == "count":
+            num_tests = self._session.testscollected
+            progress_length = len(" [{}/{}]".format(str(num_tests), str(num_tests)))
+        else:
+            progress_length = len(" [100%]")
+
         if self.verbosity <= 0 and self._show_progress_info:
             self._progress_nodeids_reported.add(nodeid)
             last_item = (
@@ -413,23 +419,29 @@ class TerminalReporter(object):
                 self._write_progress_information_filling_space()
             else:
                 past_edge = (
-                    self._tw.chars_on_current_line + self._PROGRESS_LENGTH + 1
+                    self._tw.chars_on_current_line + progress_length + 1
                     >= self._screen_width
                 )
                 if past_edge:
                     msg = self._get_progress_information_message()
                     self._tw.write(msg + "\n", cyan=True)
 
-    _PROGRESS_LENGTH = len(" [100%]")
-
     def _get_progress_information_message(self):
         if self.config.getoption("capture") == "no":
             return ""
         collected = self._session.testscollected
-        if collected:
-            progress = len(self._progress_nodeids_reported) * 100 // collected
-            return " [{:3d}%]".format(progress)
-        return " [100%]"
+        if self.config.getini("console_output_style") == "count":
+            if collected:
+                progress = self._progress_nodeids_reported
+                counter_format = "{{:{}d}}".format(len(str(collected)))
+                format_string = " [{}/{{}}]".format(counter_format)
+                return format_string.format(len(progress), collected)
+            return " [ {} / {} ]".format(collected, collected)
+        else:
+            if collected:
+                progress = len(self._progress_nodeids_reported) * 100 // collected
+                return " [{:3d}%]".format(progress)
+            return " [100%]"
 
     def _write_progress_information_filling_space(self):
         msg = self._get_progress_information_message()

testing/test_terminal.py

@@ -1183,6 +1183,22 @@ class TestProgress(object):
             ]
         )
 
+    def test_count(self, many_tests_files, testdir):
+        testdir.makeini(
+            """
+            [pytest]
+            console_output_style = count
+        """
+        )
+        output = testdir.runpytest()
+        output.stdout.re_match_lines(
+            [
+                r"test_bar.py \.{10} \s+ \[10/20\]",
+                r"test_foo.py \.{5} \s+ \[15/20\]",
+                r"test_foobar.py \.{5} \s+ \[20/20\]",
+            ]
+        )
+
     def test_verbose(self, many_tests_files, testdir):
         output = testdir.runpytest("-v")
         output.stdout.re_match_lines(
@@ -1193,11 +1209,38 @@ class TestProgress(object):
             ]
         )
 
+    def test_verbose_count(self, many_tests_files, testdir):
+        testdir.makeini(
+            """
+            [pytest]
+            console_output_style = count
+        """
+        )
+        output = testdir.runpytest("-v")
+        output.stdout.re_match_lines(
+            [
+                r"test_bar.py::test_bar\[0\] PASSED \s+ \[ 1/20\]",
+                r"test_foo.py::test_foo\[4\] PASSED \s+ \[15/20\]",
+                r"test_foobar.py::test_foobar\[4\] PASSED \s+ \[20/20\]",
+            ]
+        )
+
     def test_xdist_normal(self, many_tests_files, testdir):
         pytest.importorskip("xdist")
         output = testdir.runpytest("-n2")
         output.stdout.re_match_lines([r"\.{20} \s+ \[100%\]"])
 
+    def test_xdist_normal_count(self, many_tests_files, testdir):
+        pytest.importorskip("xdist")
+        testdir.makeini(
+            """
+            [pytest]
+            console_output_style = count
+        """
+        )
+        output = testdir.runpytest("-n2")
+        output.stdout.re_match_lines([r"\.{20} \s+ \[20/20\]"])
+
     def test_xdist_verbose(self, many_tests_files, testdir):
         pytest.importorskip("xdist")
         output = testdir.runpytest("-n2", "-v")