Add a test that report uses the precision.

1 files changed, 43 insertions, 0 deletions

diff --git a/tests/test_summary.py b/tests/test_summary.py
index 3691336..44defa5 100644
--- a/tests/test_summary.py
+++ b/tests/test_summary.py
@@ -420,6 +420,49 @@ class SummaryTest(UsingModulesMixin, CoverageTest):
         squeezed = self.squeezed_lines(report)
         self.assertEqual(squeezed[2], "No data to report.")
 
+    def test_report_precision(self):
+        self.make_file(".coveragerc", """\
+            [report]
+            precision = 3
+            """)
+        self.make_file("main.py", """
+            import not_covered, covered
+
+            def normal(z):
+                if z:
+                    print("z")
+            normal(True)
+            normal(False)
+        """)
+        self.make_file("not_covered.py", """
+            def not_covered(n):
+                if n:
+                    print("n")
+            not_covered(True)
+        """)
+        self.make_file("covered.py", """
+            def foo():
+                pass
+            foo()
+        """)
+        out = self.run_command("coverage run --branch main.py")
+        self.assertEqual(out, "n\nz\n")
+        report = self.report_from_command("coverage report")
+
+        # Name             Stmts   Miss Branch BrPart      Cover
+        # ------------------------------------------------------
+        # covered.py           3      0      0      0   100.000%
+        # main.py              6      0      2      0   100.000%
+        # not_covered.py       4      0      2      1    83.333%
+        # ------------------------------------------------------
+        # TOTAL               13      0      4      1    94.118%
+
+        self.assertEqual(self.line_count(report), 7, report)
+        squeezed = self.squeezed_lines(report)
+        self.assertEqual(squeezed[2], "covered.py 3 0 0 0 100.000%")
+        self.assertEqual(squeezed[4], "not_covered.py 4 0 2 1 83.333%")
+        self.assertEqual(squeezed[6], "TOTAL 13 0 4 1 94.118%")
+
     def test_dotpy_not_python(self):
         # We run a .py file, and when reporting, we can't parse it as Python.
         # We should get an error message in the report.