[lit] Add an --output option, for writing results in a machine readable form.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190738 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 27 insertions, 2 deletions

diff --git a/utils/lit/tests/Inputs/test-data/metrics.ini b/utils/lit/tests/Inputs/test-data/metrics.ini
index 267e516803..01b09c5c77 100644
--- a/utils/lit/tests/Inputs/test-data/metrics.ini
+++ b/utils/lit/tests/Inputs/test-data/metrics.ini
@@ -1,6 +1,6 @@
 [global]
 result_code = PASS
-result_output = 'Test passed.'
+result_output = Test passed.
 
 [results]
 value0 = 1
diff --git a/utils/lit/tests/lit.cfg b/utils/lit/tests/lit.cfg
index a8d259136e..2111b72748 100644
--- a/utils/lit/tests/lit.cfg
+++ b/utils/lit/tests/lit.cfg
@@ -23,7 +23,7 @@ config.excludes = ['Inputs']
 config.test_source_root = os.path.dirname(__file__)
 config.test_exec_root = config.test_source_root
 
-config.target_triple = None
+config.target_triple = '(unused)'
 
 src_root = os.path.join(config.test_source_root, '..')
 config.environment['PYTHONPATH'] = src_root
@@ -39,3 +39,7 @@ config.substitutions.append(('%{python}', sys.executable))
 if lit_config.params.get('check-coverage', None):
     config.environment['COVERAGE_PROCESS_START'] = os.path.join(
         os.path.dirname(__file__), ".coveragerc")
+
+# Add a feature to detect the Python version.
+config.available_features.add("python%d.%d" % (sys.version_info[0],
+                                                  sys.version_info[1]))
diff --git a/utils/lit/tests/test-output.py b/utils/lit/tests/test-output.py
new file mode 100644
index 0000000000..adfbcd88f2
--- /dev/null
+++ b/utils/lit/tests/test-output.py
@@ -0,0 +1,21 @@
+# XFAIL: python2.5
+
+# RUN: %{lit} -j 1 -v %{inputs}/test-data --output %t.results.out > %t.out
+# RUN: FileCheck < %t.results.out %s
+
+# CHECK: {
+# CHECK: "__version__"
+# CHECK: "elapsed"
+# CHECK-NEXT: "tests": [
+# CHECK-NEXT:   {
+# CHECK-NEXT:     "code": "PASS",
+# CHECK-NEXT:     "elapsed": {{[0-9.]+}},
+# CHECK-NEXT:     "metrics": {
+# CHECK-NEXT:       "value0": 1,
+# CHECK-NEXT:       "value1": 2.3456
+# CHECK-NEXT:     }
+# CHECK-NEXT:     "name": "test-data :: metrics.ini",
+# CHECK-NEXT:     "output": "Test passed."
+# CHECK-NEXT:   }
+# CHECK-NEXT: ]
+# CHECK-NEXT: }