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llvm-mirror/utils/lit/tests/selecting.py
Julian Lettner e56242dfcc [lit] Improve naming of test result categories 
Improve consistency when printing test results:
Previously we were using different labels for group names (the header
for the list of, e.g., failing tests) and summary count lines.  For
example, "Failing Tests"/"Unexpected Failures".  This commit changes lit
to label things consistently.

Improve wording of labels:
When talking about individual test results, the first word in
"Unexpected Failures", "Expected Passes", and "Individual Timeouts" is
superfluous.  Some labels contain the word "Tests" and some don't.
Let's simplify the names.

Before:
```
Failing Tests (1):
  ...

Expected Passes    : 3
Unexpected Failures: 1
```

After:
```
Failed Tests (1):
  ...

Passed: 3
Failed: 1
```

Reviewed By: ldionne

Differential Revision: https://reviews.llvm.org/D77708
2020-06-05 08:14:42 -07:00

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# RUN: %{lit} %{inputs}/discovery | FileCheck --check-prefix=CHECK-BASIC %s
# CHECK-BASIC: Testing: 5 tests
# Check that we exit with an error if we do not discover any tests, even with --allow-empty-runs.
#
# RUN: not %{lit} %{inputs}/nonexistent 2>&1 | FileCheck --check-prefix=CHECK-BAD-PATH %s
# RUN: not %{lit} %{inputs}/nonexistent --allow-empty-runs 2>&1 | FileCheck --check-prefix=CHECK-BAD-PATH %s
# CHECK-BAD-PATH: error: did not discover any tests for provided path(s)
# Check that we exit with an error if we filter out all tests, but allow it with --allow-empty-runs.
#
# RUN: not %{lit} --filter 'nonexistent' %{inputs}/discovery 2>&1 | FileCheck --check-prefixes=CHECK-BAD-FILTER,CHECK-BAD-FILTER-ERROR %s
# RUN: %{lit} --filter 'nonexistent' --allow-empty-runs %{inputs}/discovery 2>&1 | FileCheck --check-prefixes=CHECK-BAD-FILTER,CHECK-BAD-FILTER-ALLOW %s
# CHECK-BAD-FILTER: error: filter did not match any tests (of 5 discovered).
# CHECK-BAD-FILTER-ERROR: Use '--allow-empty-runs' to suppress this error.
# CHECK-BAD-FILTER-ALLOW: Suppressing error because '--allow-empty-runs' was specified.
# Check that regex-filtering works, is case-insensitive, and can be configured via env var.
#
# RUN: %{lit} --filter 'o[a-z]e' %{inputs}/discovery | FileCheck --check-prefix=CHECK-FILTER %s
# RUN: %{lit} --filter 'O[A-Z]E' %{inputs}/discovery | FileCheck --check-prefix=CHECK-FILTER %s
# RUN: env LIT_FILTER='o[a-z]e' %{lit} %{inputs}/discovery | FileCheck --check-prefix=CHECK-FILTER %s
# CHECK-FILTER: Testing: 2 of 5 tests
# CHECK-FILTER: Excluded: 3
# Check that maximum counts work
#
# RUN: %{lit} --max-tests 3 %{inputs}/discovery | FileCheck --check-prefix=CHECK-MAX %s
# CHECK-MAX: Testing: 3 of 5 tests
# CHECK-MAX: Excluded: 2
# Check that sharding partitions the testsuite in a way that distributes the
# rounding error nicely (i.e. 5/3 => 2 2 1, not 1 1 3 or whatever)
#
# RUN: %{lit} --num-shards 3 --run-shard 1 %{inputs}/discovery >%t.out 2>%t.err
# RUN: FileCheck --check-prefix=CHECK-SHARD0-ERR < %t.err %s
# RUN: FileCheck --check-prefix=CHECK-SHARD0-OUT < %t.out %s
# CHECK-SHARD0-ERR: note: Selecting shard 1/3 = size 2/5 = tests #(3*k)+1 = [1, 4]
# CHECK-SHARD0-OUT: Testing: 2 of 5 tests
# CHECK-SHARD0-OUT: Excluded: 3
#
# RUN: %{lit} --num-shards 3 --run-shard 2 %{inputs}/discovery >%t.out 2>%t.err
# RUN: FileCheck --check-prefix=CHECK-SHARD1-ERR < %t.err %s
# RUN: FileCheck --check-prefix=CHECK-SHARD1-OUT < %t.out %s
# CHECK-SHARD1-ERR: note: Selecting shard 2/3 = size 2/5 = tests #(3*k)+2 = [2, 5]
# CHECK-SHARD1-OUT: Testing: 2 of 5 tests
#
# RUN: %{lit} --num-shards 3 --run-shard 3 %{inputs}/discovery >%t.out 2>%t.err
# RUN: FileCheck --check-prefix=CHECK-SHARD2-ERR < %t.err %s
# RUN: FileCheck --check-prefix=CHECK-SHARD2-OUT < %t.out %s
# CHECK-SHARD2-ERR: note: Selecting shard 3/3 = size 1/5 = tests #(3*k)+3 = [3]
# CHECK-SHARD2-OUT: Testing: 1 of 5 tests
# Check that sharding via env vars works.
#
# RUN: env LIT_NUM_SHARDS=3 LIT_RUN_SHARD=1 %{lit} %{inputs}/discovery >%t.out 2>%t.err
# RUN: FileCheck --check-prefix=CHECK-SHARD0-ENV-ERR < %t.err %s
# RUN: FileCheck --check-prefix=CHECK-SHARD0-ENV-OUT < %t.out %s
# CHECK-SHARD0-ENV-ERR: note: Selecting shard 1/3 = size 2/5 = tests #(3*k)+1 = [1, 4]
# CHECK-SHARD0-ENV-OUT: Testing: 2 of 5 tests
#
# RUN: env LIT_NUM_SHARDS=3 LIT_RUN_SHARD=2 %{lit} %{inputs}/discovery >%t.out 2>%t.err
# RUN: FileCheck --check-prefix=CHECK-SHARD1-ENV-ERR < %t.err %s
# RUN: FileCheck --check-prefix=CHECK-SHARD1-ENV-OUT < %t.out %s
# CHECK-SHARD1-ENV-ERR: note: Selecting shard 2/3 = size 2/5 = tests #(3*k)+2 = [2, 5]
# CHECK-SHARD1-ENV-OUT: Testing: 2 of 5 tests
#
# RUN: env LIT_NUM_SHARDS=3 LIT_RUN_SHARD=3 %{lit} %{inputs}/discovery >%t.out 2>%t.err
# RUN: FileCheck --check-prefix=CHECK-SHARD2-ENV-ERR < %t.err %s
# RUN: FileCheck --check-prefix=CHECK-SHARD2-ENV-OUT < %t.out %s
# CHECK-SHARD2-ENV-ERR: note: Selecting shard 3/3 = size 1/5 = tests #(3*k)+3 = [3]
# CHECK-SHARD2-ENV-OUT: Testing: 1 of 5 tests
# Check that providing more shards than tests results in 1 test per shard
# until we run out, then 0.
#
# RUN: %{lit} --num-shards 100 --run-shard 2 %{inputs}/discovery >%t.out 2>%t.err
# RUN: FileCheck --check-prefix=CHECK-SHARD-BIG-ERR1 < %t.err %s
# RUN: FileCheck --check-prefix=CHECK-SHARD-BIG-OUT1 < %t.out %s
# CHECK-SHARD-BIG-ERR1: note: Selecting shard 2/100 = size 1/5 = tests #(100*k)+2 = [2]
# CHECK-SHARD-BIG-OUT1: Testing: 1 of 5 tests
#
# RUN: %{lit} --num-shards 100 --run-shard 6 %{inputs}/discovery >%t.out 2>%t.err
# RUN: FileCheck --check-prefix=CHECK-SHARD-BIG-ERR2 < %t.err %s
# CHECK-SHARD-BIG-ERR2: note: Selecting shard 6/100 = size 0/5 = tests #(100*k)+6 = []
# CHECK-SHARD-BIG-ERR2: warning: shard does not contain any tests. Consider decreasing the number of shards.
#
# RUN: %{lit} --num-shards 100 --run-shard 50 %{inputs}/discovery >%t.out 2>%t.err
# RUN: FileCheck --check-prefix=CHECK-SHARD-BIG-ERR3 < %t.err %s
# CHECK-SHARD-BIG-ERR3: note: Selecting shard 50/100 = size 0/5 = tests #(100*k)+50 = []
# CHECK-SHARD-BIG-ERR3: warning: shard does not contain any tests. Consider decreasing the number of shards.
# Check that range constraints are enforced
#
# RUN: not %{lit} --num-shards 0 --run-shard 2 %{inputs}/discovery >%t.out 2>%t.err
# RUN: FileCheck --check-prefix=CHECK-SHARD-ERR < %t.err %s
# CHECK-SHARD-ERR: error: argument --num-shards: requires positive integer, but found '0'
#
# RUN: not %{lit} --num-shards 3 --run-shard 4 %{inputs}/discovery >%t.out 2>%t.err
# RUN: FileCheck --check-prefix=CHECK-SHARD-ERR2 < %t.err %s
# CHECK-SHARD-ERR2: error: --run-shard must be between 1 and --num-shards (inclusive)
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