More tests.

vfs_test.go

@@ -0,0 +1,135 @@
+package sqlite3
+
+import (
+	"bytes"
+	"context"
+	"math/rand"
+	"testing"
+	"time"
+
+	"github.com/ncruces/julianday"
+)
+
+func Test_vfsLocaltime(t *testing.T) {
+	memory := make(MockMemory, 128)
+	module := &MockModule{&memory}
+
+	memory.Write(0, []byte("zero"))
+
+	rc := vfsLocaltime(context.TODO(), module, 0, 4)
+	if rc != 0 {
+		t.Fatal("returned", rc)
+	}
+
+	epoch := time.Unix(0, 0)
+	if z, _ := memory.Read(0, 4); !bytes.Equal(z, []byte("zero")) {
+		t.Fatal("overwrote zero address")
+	}
+	if s, _ := memory.ReadUint32Le(4 + 0*4); int(s) != epoch.Second() {
+		t.Fatal("wrong second")
+	}
+	if m, _ := memory.ReadUint32Le(4 + 1*4); int(m) != epoch.Minute() {
+		t.Fatal("wrong minute")
+	}
+	if h, _ := memory.ReadUint32Le(4 + 2*4); int(h) != epoch.Hour() {
+		t.Fatal("wrong hour")
+	}
+	if d, _ := memory.ReadUint32Le(4 + 3*4); int(d) != epoch.Day() {
+		t.Fatal("wrong day")
+	}
+	if m, _ := memory.ReadUint32Le(4 + 4*4); time.Month(1+m) != epoch.Month() {
+		t.Fatal("wrong month")
+	}
+	if y, _ := memory.ReadUint32Le(4 + 5*4); 1900+int(y) != epoch.Year() {
+		t.Fatal("wrong year")
+	}
+	if w, _ := memory.ReadUint32Le(4 + 6*4); time.Weekday(w) != epoch.Weekday() {
+		t.Fatal("wrong weekday")
+	}
+	if d, _ := memory.ReadUint32Le(4 + 7*4); int(d) != epoch.YearDay()-1 {
+		t.Fatal("wrong yearday")
+	}
+}
+
+func Test_vfsRandomness(t *testing.T) {
+	memory := make(MockMemory, 128)
+	module := &MockModule{&memory}
+
+	memory.Write(0, []byte("zero"))
+
+	rand.Seed(0)
+	rc := vfsRandomness(context.TODO(), module, 0, 16, 4)
+	if rc != 16 {
+		t.Fatal("returned", rc)
+	}
+
+	if z, _ := memory.Read(0, 4); !bytes.Equal(z, []byte("zero")) {
+		t.Fatal("overwrote zero address")
+	}
+
+	var want [16]byte
+	rand.Seed(0)
+	rand.Read(want[:])
+
+	if got, _ := memory.Read(4, 16); !bytes.Equal(got, want[:]) {
+		t.Fatalf("got %q, want %q", got, want)
+	}
+}
+
+func Test_vfsSleep(t *testing.T) {
+	start := time.Now()
+
+	rc := vfsSleep(context.TODO(), 0, 123456)
+	if rc != 0 {
+		t.Fatal("returned", rc)
+	}
+
+	want := 123456 * time.Microsecond
+	if got := time.Since(start); got < want {
+		t.Fatalf("got %v, want %v", got, want)
+	}
+}
+
+func Test_vfsCurrentTime(t *testing.T) {
+	memory := make(MockMemory, 128)
+	module := &MockModule{&memory}
+
+	memory.Write(0, []byte("zero"))
+
+	now := time.Now()
+	rc := vfsCurrentTime(context.TODO(), module, 0, 4)
+	if rc != 0 {
+		t.Fatal("returned", rc)
+	}
+
+	if z, _ := memory.Read(0, 4); !bytes.Equal(z, []byte("zero")) {
+		t.Fatal("overwrote zero address")
+	}
+	want := julianday.Float(now)
+	if got, _ := memory.ReadFloat64Le(4); float32(got) != float32(want) {
+		t.Fatalf("got %v, want %v", got, want)
+	}
+}
+
+func Test_vfsCurrentTime64(t *testing.T) {
+	memory := make(MockMemory, 128)
+	module := &MockModule{&memory}
+
+	memory.Write(0, []byte("zero"))
+
+	now := time.Now()
+	time.Sleep(time.Millisecond)
+	rc := vfsCurrentTime64(context.TODO(), module, 0, 4)
+	if rc != 0 {
+		t.Fatal("returned", rc)
+	}
+
+	if z, _ := memory.Read(0, 4); !bytes.Equal(z, []byte("zero")) {
+		t.Fatal("overwrote zero address")
+	}
+	day, nsec := julianday.Date(now)
+	want := day*86_400_000 + nsec/1_000_000
+	if got, _ := memory.ReadUint64Le(4); int64(got)-want > 100 {
+		t.Fatalf("got %v, want %v", got, want)
+	}
+}