improve coverage

src/main/world_synth.cc

@@ -91,8 +91,8 @@ void PrintUsage(std::ostream* stream) {
 
 }  // namespace
 
-/*
- * @a world_synth [ @e option ] @e f0file @e spfile @e apfile
+/**
+ * @a world_synth [ @e option ] @e spfile @e apfile [ @e f0file ]
  *
  * - @b -l @e int
  *   - FFT length

test/test_amgcep.bats

@@ -61,8 +61,8 @@ teardown() {
 }
 
 @test "amgcep: compatibility (a = 0, c = 0)" {
-    $sptk3/nrand -l 20 | $sptk3/acep -m 3 -k 0.2 -p 2 > $tmp/1
-    $sptk3/nrand -l 20 | $sptk4/amgcep -m 3 -c 0 -a 0 -s 0.2 -p 2 > $tmp/2
+    $sptk3/nrand -l 20 | $sptk3/acep -m 3 -k 0.2 -t 0.8 -l 0.9 -p 2 > $tmp/1
+    $sptk3/nrand -l 20 | $sptk4/amgcep -m 3 -c 0 -a 0 -s 0.2 -t 0.8 -l 0.9 -p 2 > $tmp/2
     run $sptk4/aeq $tmp/1 $tmp/2
     [ "$status" -eq 0 ]
 }

test/test_dtw.bats

@@ -34,13 +34,19 @@ teardown() {
     for d in $(seq 0 1); do
         for p in $(seq 0 6); do
             $sptk3/dtw -l 2 -p $((p + 1)) -n $((d + 1)) \
-                       $tmp/0_r $tmp/0_q -s $tmp/1_s > $tmp/1
+                       $tmp/0_r $tmp/0_q -s $tmp/1_s -v $tmp/1_v > $tmp/1
             $sptk4/dtw -l 2 -p "$p" -d "$d" \
-                       $tmp/0_r $tmp/0_q -S $tmp/2_s > $tmp/2
+                       $tmp/0_r $tmp/0_q -S $tmp/2_s -P $tmp/2_v > $tmp/2
             run $sptk4/aeq $tmp/1 $tmp/2
             [ "$status" -eq 0 ]
+
             run $sptk4/aeq $tmp/1_s $tmp/2_s
             [ "$status" -eq 0 ]
+
+            $sptk3/x2x +id $tmp/1_v > $tmp/1_p
+            $sptk3/x2x +id $tmp/2_v > $tmp/2_p
+            run $sptk4/aeq $tmp/1_p $tmp/2_p
+            [ "$status" -eq 0 ]
         done
     done
 }

test/test_fbank.bats

@@ -29,9 +29,9 @@ teardown() {
 
 @test "fbank: compatibility" {
     $sptk3/nrand -l 16 |
-        $sptk3/mfcc -a 0 -c 0 -e 1 -l 8 -L 8 -w 1 -n 4 -m 3 > $tmp/1
+        $sptk3/mfcc -a 0 -c 0 -e 1 -l 8 -L 8 -w 1 -n 4 -m 3 -s 8 > $tmp/1
     $sptk3/nrand -l 16 |
-        $sptk4/fbank -l 8 -n 4 -e 1 |
+        $sptk4/fbank -l 8 -n 4 -e 1 -s 8 |
         $sptk3/dct -l 4 |
         $sptk3/bcp -l 4 -s 1 +d > $tmp/2
     run $sptk4/aeq $tmp/1 $tmp/2

test/test_histogram.bats

@@ -36,6 +36,15 @@ teardown() {
     $sptk3/ramp -l 10 | $sptk4/histogram -l 0 -u 9 -b 4 > $tmp/2
     run $sptk4/aeq $tmp/1 $tmp/2
     [ "$status" -eq 0 ]
+
+    cmd="import numpy as np; "
+    cmd+="h, e = np.histogram(np.arange(10), bins=4, range=(0, 9), density=True); "
+    cmd+="h *= np.diff(e); "
+    cmd+="print(' '.join(map(str, h)))"
+    tools/venv/bin/python -c "${cmd}" | $sptk3/x2x +ad > $tmp/3
+    $sptk3/ramp -l 10 | $sptk4/histogram -l 0 -u 9 -b 4 -n > $tmp/4
+    run $sptk4/aeq $tmp/3 $tmp/4
+    [ "$status" -eq 0 ]
 }
 
 @test "histogram: valgrind" {

test/test_mfcc.bats

@@ -32,9 +32,9 @@ teardown() {
     # signal energy before windowing whereas SPTK4 calculates one after
     # windowing.
     $sptk3/nrand -l 16 |
-        $sptk3/mfcc -a 0 -c 10 -e 1 -l 8 -L 8 -w 1 -n 6 -m 3 -E -0 > $tmp/1
+        $sptk3/mfcc -a 0 -c 10 -e 1 -l 8 -L 8 -w 1 -n 6 -m 3 -E -0 -s 8 > $tmp/1
     $sptk3/nrand -l 16 |
-        $sptk4/mfcc -c 10 -e 1 -l 8 -n 6 -m 3 -o 3 > $tmp/2
+        $sptk4/mfcc -c 10 -e 1 -l 8 -n 6 -m 3 -o 3 -s 8 > $tmp/2
     run $sptk4/aeq $tmp/1 $tmp/2
     [ "$status" -eq 0 ]
 }

test/test_nrand.bats

@@ -32,6 +32,11 @@ teardown() {
     $sptk4/nrand -l 256 -u 2 -d 0.1 -s 123 > $tmp/2
     run $sptk4/aeq $tmp/1 $tmp/2
     [ "$status" -eq 0 ]
+
+    $sptk3/nrand -l 256 -m -2 -v 2 -s 234 > $tmp/3
+    $sptk4/nrand -l 256 -u -2 -v 2 -s 234 > $tmp/4
+    run $sptk4/aeq $tmp/3 $tmp/4
+    [ "$status" -eq 0 ]
 }
 
 @test "nrand: valgrind" {

test/test_x2x.bats

@@ -44,6 +44,13 @@ teardown() {
     done
 }
 
+@test "x2x: rounding" {
+    echo -0.5 0.5 | $sptk3/x2x +ai -r > $tmp/1
+    echo -0.5 0.5 | $sptk4/x2x +ai -r > $tmp/2
+    run $sptk4/aeq $tmp/1 $tmp/2
+    [ "$status" -eq 0 ]
+}
+
 @test "x2x: valgrind" {
     $sptk3/nrand -l 20 > $tmp/1
     run valgrind $sptk4/x2x +da $tmp/1