New config setting: [report]precision lets you specify the number of digits after the decimal point in coverage percentages. Finishes issue #16.

2 files changed, 25 insertions, 0 deletions

diff --git a/test/test_config.py b/test/test_config.py
index 96b87650..d5290584 100644
--- a/test/test_config.py
+++ b/test/test_config.py
@@ -2,6 +2,7 @@
 
 import os, sys
 import coverage
+from coverage.misc import CoverageException
 
 sys.path.insert(0, os.path.split(__file__)[0]) # Force relative import for Py3k
 from coveragetest import CoverageTest
@@ -88,6 +89,14 @@ class ConfigTest(CoverageTest):
         cov = coverage.coverage(data_file="fromarg.dat")
         self.assertEqual(cov.config.data_file, "fromarg.dat")
 
+    def test_parse_errors(self):
+        # Im-parseable values raise CoverageException
+        self.make_file(".coveragerc", """\
+            [run]
+            timid = maybe?
+            """)
+        self.assertRaises(CoverageException, coverage.coverage)
+
 
 class ConfigFileTest(CoverageTest):
     """Tests of the config file settings in particular."""
@@ -116,6 +125,7 @@ class ConfigFileTest(CoverageTest):
             omit =
                 one, another, some_more,
                     yet_more
+            precision = 3
 
             [html]
 
@@ -141,6 +151,7 @@ class ConfigFileTest(CoverageTest):
         self.assertEqual(cov.config.omit,
             ["one", "another", "some_more", "yet_more"]
             )
+        self.assertEqual(cov.config.precision, 3)
 
         self.assertEqual(cov.config.html_dir, r"c:\tricky\dir.somewhere")
 
diff --git a/test/test_results.py b/test/test_results.py
index 79beb4e9..d6919fa2 100644
--- a/test/test_results.py
+++ b/test/test_results.py
@@ -49,3 +49,17 @@ class NumbersTest(CoverageTest):
         self.assertEqual(n1.pc_covered_str, "99")
         self.assertEqual(n999.pc_covered_str, "1")
         self.assertEqual(n1000.pc_covered_str, "0")
+
+    def test_pc_covered_str_precision(self):
+        assert Numbers._precision == 0
+        Numbers.set_precision(1)
+        n0 = Numbers(n_files=1, n_statements=10000, n_missing=0)
+        n1 = Numbers(n_files=1, n_statements=10000, n_missing=1)
+        n9999 = Numbers(n_files=1, n_statements=10000, n_missing=9999)
+        n10000 = Numbers(n_files=1, n_statements=10000, n_missing=10000)
+        self.assertEqual(n0.pc_covered_str, "100.0")
+        self.assertEqual(n1.pc_covered_str, "99.9")
+        self.assertEqual(n9999.pc_covered_str, "0.1")
+        self.assertEqual(n10000.pc_covered_str, "0.0")
+        Numbers.set_precision(0)
+