150 lines
4.6 KiB
Python
150 lines
4.6 KiB
Python
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# python -m pytest test-other.py
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import os
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import sys
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import pytest
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from testutils import cppcheck, assert_cppcheck
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@pytest.mark.timeout(10)
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def test_slow_array_many_floats(tmpdir):
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# 11649
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# cppcheck valueflow takes a long time when an array has many floats
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filename = os.path.join(tmpdir, 'hang.c')
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with open(filename, 'wt') as f:
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f.write("const float f[] = {\n")
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for i in range(20000):
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f.write(' 13.6f,\n')
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f.write("};\n")
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cppcheck([filename]) # should not take more than ~1 second
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@pytest.mark.timeout(10)
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def test_slow_array_many_strings(tmpdir):
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# 11901
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# cppcheck valueflow takes a long time when analyzing a file with many strings
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filename = os.path.join(tmpdir, 'hang.c')
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with open(filename, 'wt') as f:
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f.write("const char *strings[] = {\n")
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for i in range(20000):
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f.write(' "abc",\n')
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f.write("};\n")
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cppcheck([filename]) # should not take more than ~1 second
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@pytest.mark.timeout(10)
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def test_slow_long_line(tmpdir):
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# simplecpp #314
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filename = os.path.join(tmpdir, 'hang.c')
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with open(filename, 'wt') as f:
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f.write("#define A() static const int a[] = {\\\n")
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for i in range(5000):
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f.write(" -123, 456, -789,\\\n")
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f.write("};\n")
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cppcheck([filename]) # should not take more than ~1 second
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@pytest.mark.timeout(60)
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def test_slow_large_constant_expression(tmpdir):
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# 12182
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filename = os.path.join(tmpdir, 'hang.c')
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with open(filename, 'wt') as f:
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f.write("""
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#define FLAG1 0
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#define FLAG2 0
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#define FLAG3 0
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#define FLAG4 0
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#define FLAG5 0
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#define FLAG6 0
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#define FLAG7 0
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#define FLAG8 0
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#define FLAG9 0
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#define FLAG10 0
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#define FLAG11 0
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#define FLAG12 0
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#define FLAG13 0
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#define FLAG14 0
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#define FLAG15 0
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#define FLAG16 0
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#define FLAG17 0
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#define FLAG18 0
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#define FLAG19 0
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#define FLAG20 0
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#define FLAG21 0
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#define FLAG22 0
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#define FLAG23 0
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#define FLAG24 0
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#define maxval(x, y) ((x) > (y) ? (x) : (y))
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#define E_SAMPLE_SIZE maxval( FLAG1, \
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maxval( FLAG2, \
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maxval( FLAG3, \
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maxval( FLAG4, \
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maxval( FLAG5, \
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maxval( FLAG6, \
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maxval( FLAG7, \
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maxval( FLAG8, \
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maxval( FLAG9, \
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maxval( FLAG10, \
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maxval( FLAG11, \
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maxval( FLAG12, \
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maxval( FLAG13, \
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maxval( FLAG14, \
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FLAG15 ))))))))))))))
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#define SAMPLE_SIZE maxval( E_SAMPLE_SIZE, \
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maxval( sizeof(st), \
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maxval( FLAG16, \
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maxval( FLAG17, \
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maxval( FLAG18, \
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maxval( FLAG19, \
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maxval( FLAG20, \
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maxval( FLAG21, \
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maxval( FLAG22, \
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maxval( FLAG23, \
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FLAG24 ))))))))))
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typedef struct {
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int n;
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} st;
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x = SAMPLE_SIZE;
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""")
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cppcheck([filename])
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@pytest.mark.timeout(10)
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def test_slow_exprid(tmpdir):
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# 11885
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filename = os.path.join(tmpdir, 'hang.c')
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with open(filename, 'wt') as f:
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f.write("""
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int foo(int a, int b)
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{
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#define A0(a, b) ((a) + (b))
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#define A1(a, b) ((a) > (b)) ? A0((a) - (b), (b)) : A0((b) - (a), (a))
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#define A2(a, b) ((a) > (b)) ? A1((a) - (b), (b)) : A1((b) - (a), (a))
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#define A3(a, b) ((a) > (b)) ? A2((a) - (b), (b)) : A2((b) - (a), (a))
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#define A4(a, b) ((a) > (b)) ? A3((a) - (b), (b)) : A3((b) - (a), (a))
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#define A5(a, b) ((a) > (b)) ? A4((a) - (b), (b)) : A4((b) - (a), (a))
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#define A6(a, b) ((a) > (b)) ? A5((a) - (b), (b)) : A5((b) - (a), (a))
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#define A7(a, b) ((a) > (b)) ? A6((a) - (b), (b)) : A6((b) - (a), (a))
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#define A8(a, b) ((a) > (b)) ? A7((a) - (b), (b)) : A7((b) - (a), (a))
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#define A9(a, b) ((a) > (b)) ? A8((a) - (b), (b)) : A8((b) - (a), (a))
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#define A10(a, b) ((a) > (b)) ? A9((a) - (b), (b)) : A9((b) - (a), (a))
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#define A11(a, b) ((a) > (b)) ? A10((a) - (b), (b)) : A10((b) - (a), (a))
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return A8(a, b);
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}
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""")
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my_env = os.environ.copy()
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my_env["DISABLE_VALUEFLOW"] = "1"
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cppcheck([filename], env=my_env)
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