add tests and dbc for frame decoding

src/canmatrix/tests/test_frame_decoding.dbc

@@ -0,0 +1,45 @@
+VERSION "created by canmatrix"
+
+
+NS_ :
+
+BS_:
+
+BU_: 
+
+
+BO_ 1 testFrame1: 8 TEST_ECU
+ SG_ sig0 : 1|2@0+ (1.0,0.0) [0|0] "" CCL_TEST 
+ SG_ sig1 : 7|6@0+ (1.0,0.0) [0|0] "" CCL_TEST 
+ SG_ sig2 : 15|11@0+ (1.0,0.0) [0|0] "" CCL_TEST 
+ SG_ sig3 : 20|12@0+ (1.0,0.0) [0|0] "" CCL_TEST 
+ SG_ sig4 : 24|9@0+ (1.0,0.0) [0|0] "" CCL_TEST 
+ SG_ sig5 : 50|3@0+ (1.0,0.0) [0|0] "" CCL_TEST 
+ SG_ sig6 : 53|3@0+ (1.0,0.0) [0|0] "" CCL_TEST 
+ SG_ sig7 : 47|10@0+ (1.0,0.0) [0|0] "" CCL_TEST 
+ SG_ sig8 : 58|3@0+ (1.0,0.0) [0|0] "" CCL_TEST 
+ SG_ sig9 : 61|3@0+ (1.0,0.0) [0|0] "" CCL_TEST 
+ SG_ sig10 : 63|2@0+ (1.0,0.0) [0|0] "" CCL_TEST 
+
+BO_ 2 testFrame2: 8 TEST_ECU 
+ SG_ secSig1 : 60|2@1+ (1.0,0.0) [0|0] "" CCL_TEST 
+ SG_ secSig2 : 55|1@1+ (1.0,0.0) [0|0] "" CCL_TEST 
+ SG_ secSig3 : 20|4@1+ (1.0,0.0) [0|0] "" CCL_TEST 
+ SG_ secSig4 : 62|2@1+ (1.0,0.0) [0|0] "" CCL_TEST 
+ SG_ secSig5 : 34|3@1+ (1.0,0.0) [0|0] "" CCL_TEST 
+ SG_ secSig6 : 37|3@1+ (1.0,0.0) [0|0] "" CCL_TEST 
+ SG_ secSig7 : 59|1@1- (1.0,0.0) [0|0] "" CCL_TEST 
+ SG_ secSig8 : 56|3@1+ (1.0,0.0) [0|0] "" CCL_TEST 
+ SG_ secSig9 : 52|3@1+ (1.0,0.0) [0|0] "" CCL_TEST 
+ SG_ secSig10 : 8|12@1+ (1.0,0.0) [0|0] "" CCL_TEST 
+ SG_ secSig11 : 24|10@1- (1.0,0.0) [0|0] "" CCL_TEST 
+ SG_ secSig12 : 0|8@1+ (1.0,0.0) [0|0] "" CCL_TEST 
+
+
+
+
+
+
+
+
+

src/canmatrix/tests/test_frame_decoding.py

@@ -0,0 +1,40 @@
+import pytest
+import canmatrix.formats
+
+
+def test_decode_from_dbc():
+    cm = canmatrix.formats.loadp("test_frame_decoding.dbc", flatImport = True)
+    # 001#8d00100100820100
+    frameData1 = bytes([141, 0, 16, 1, 0, 130, 1, 0])
+
+    # 002#0C00057003CD1F83
+    frameData2 = bytes([12, 0, 5, 112, 3, 205, 31, 131])
+
+    frame1 = cm.frameById(1)
+    decoded1 = frame1.decode(frameData1)
+    assert decoded1["sig0"] == 1
+    assert decoded1["sig1"] == 35
+    assert decoded1["sig2"] == 0
+    assert decoded1["sig3"] == 2048
+    assert decoded1["sig4"] == 256
+    assert decoded1["sig5"] == 1
+    assert decoded1["sig6"] == 0
+    assert decoded1["sig7"] == 520
+    assert decoded1["sig8"] == 0
+    assert decoded1["sig9"] == 0
+    assert decoded1["sig10"] == 0
+
+    frame2 = cm.frameById(2)
+    decoded2 = frame2.decode(frameData2)
+    assert decoded2["secSig1"] == 0
+    assert decoded2["secSig2"] == 0
+    assert decoded2["secSig3"] == 0
+    assert decoded2["secSig4"] == 2
+    assert decoded2["secSig5"] == 0
+    assert decoded2["secSig6"] == 0
+    assert decoded2["secSig7"] == 0
+    assert decoded2["secSig8"] == 3
+    assert decoded2["secSig9"] == 1
+    assert decoded2["secSig10"] == 1280
+    assert decoded2["secSig11"] == -144
+    assert decoded2["secSig12"] == 12