Press n or j to go to the next uncovered block, b, p or k for the previous block.
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PRIVATE SECTION.
METHODS create1 FOR TESTING RAISING cx_static_check.
METHODS create2 FOR TESTING RAISING cx_static_check.
METHODS create3 FOR TESTING RAISING cx_static_check.
METHODS create4 FOR TESTING RAISING cx_static_check.
METHODS create_with_zeros FOR TESTING RAISING cx_static_check.
METHODS get_count_boundaries FOR TESTING RAISING cx_static_check.
ENDCLASS.
CLASS ltcl_test IMPLEMENTATION.
METHOD create1.
DATA lo_huffman TYPE REF TO zcl_abapgit_zlib_huffman.
DATA lt_lengths TYPE zcl_abapgit_zlib_huffman=>ty_lengths.
DO 10 TIMES.
APPEND 8 TO lt_lengths.
ENDDO.
CREATE OBJECT lo_huffman
EXPORTING
it_lengths = lt_lengths.
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_count( 1 )
exp = 0 ).
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_count( 8 )
exp = 10 ).
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_symbol( 1 )
exp = 0 ).
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_symbol( 10 )
exp = 9 ).
ENDMETHOD.
METHOD create2.
DATA lo_huffman TYPE REF TO zcl_abapgit_zlib_huffman.
DATA lt_lengths TYPE zcl_abapgit_zlib_huffman=>ty_lengths.
DO 144 TIMES.
APPEND 8 TO lt_lengths.
ENDDO.
DO 112 TIMES.
APPEND 9 TO lt_lengths.
ENDDO.
DO 24 TIMES.
APPEND 7 TO lt_lengths.
ENDDO.
DO 8 TIMES.
APPEND 8 TO lt_lengths.
ENDDO.
CREATE OBJECT lo_huffman
EXPORTING
it_lengths = lt_lengths.
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_count( 8 )
exp = 152 ).
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_count( 15 )
exp = 0 ).
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_symbol( 1 )
exp = 256 ).
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_symbol( 288 )
exp = 255 ).
ENDMETHOD.
METHOD create3.
" Minimal tree: two symbols both at length 1
DATA lo_huffman TYPE REF TO zcl_abapgit_zlib_huffman.
DATA lt_lengths TYPE zcl_abapgit_zlib_huffman=>ty_lengths.
APPEND 1 TO lt_lengths.
APPEND 1 TO lt_lengths.
CREATE OBJECT lo_huffman
EXPORTING
it_lengths = lt_lengths.
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_count( 1 )
exp = 2 ).
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_count( 2 )
exp = 0 ).
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_symbol( 1 )
exp = 0 ).
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_symbol( 2 )
exp = 1 ).
ENDMETHOD.
METHOD create4.
" Mixed lengths [1, 2, 3, 3]: one symbol at each of bits 1 and 2, two at bit 3
DATA lo_huffman TYPE REF TO zcl_abapgit_zlib_huffman.
DATA lt_lengths TYPE zcl_abapgit_zlib_huffman=>ty_lengths.
APPEND 1 TO lt_lengths.
APPEND 2 TO lt_lengths.
APPEND 3 TO lt_lengths.
APPEND 3 TO lt_lengths.
CREATE OBJECT lo_huffman
EXPORTING
it_lengths = lt_lengths.
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_count( 1 )
exp = 1 ).
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_count( 2 )
exp = 1 ).
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_count( 3 )
exp = 2 ).
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_count( 4 )
exp = 0 ).
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_symbol( 1 )
exp = 0 ).
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_symbol( 2 )
exp = 1 ).
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_symbol( 3 )
exp = 2 ).
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_symbol( 4 )
exp = 3 ).
ENDMETHOD.
METHOD create_with_zeros.
" Symbols with length 0 are excluded; only symbols 1 and 3 are coded
DATA lo_huffman TYPE REF TO zcl_abapgit_zlib_huffman.
DATA lt_lengths TYPE zcl_abapgit_zlib_huffman=>ty_lengths.
APPEND 0 TO lt_lengths.
APPEND 1 TO lt_lengths.
APPEND 0 TO lt_lengths.
APPEND 1 TO lt_lengths.
CREATE OBJECT lo_huffman
EXPORTING
it_lengths = lt_lengths.
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_count( 1 )
exp = 2 ).
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_symbol( 1 )
exp = 1 ).
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_symbol( 2 )
exp = 3 ).
ENDMETHOD.
METHOD get_count_boundaries.
" Indices outside 1..15 should return 0 via the OTHERS branch
DATA lo_huffman TYPE REF TO zcl_abapgit_zlib_huffman.
DATA lt_lengths TYPE zcl_abapgit_zlib_huffman=>ty_lengths.
APPEND 8 TO lt_lengths.
CREATE OBJECT lo_huffman
EXPORTING
it_lengths = lt_lengths.
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_count( 0 )
exp = 0 ).
cl_abap_unit_assert=>assert_equals(
act = lo_huffman->get_count( 16 )
exp = 0 ).
ENDMETHOD.
ENDCLASS.
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