diff --git a/sql/catalyst/src/test/scala/org/apache/spark/sql/RandomDataGenerator.scala b/sql/catalyst/src/test/scala/org/apache/spark/sql/RandomDataGenerator.scala
index 6bd7a27ac11f1..9fa27c7df3832 100644
--- a/sql/catalyst/src/test/scala/org/apache/spark/sql/RandomDataGenerator.scala
+++ b/sql/catalyst/src/test/scala/org/apache/spark/sql/RandomDataGenerator.scala
@@ -260,10 +260,10 @@ object RandomDataGenerator {
           new MathContext(precision)).bigDecimal)
       case DoubleType => randomNumeric[Double](
         rand, r => longBitsToDouble(r.nextLong()), Seq(Double.MinValue, Double.MinPositiveValue,
-          Double.MaxValue, Double.PositiveInfinity, Double.NegativeInfinity, Double.NaN, 0.0))
+          Double.MaxValue, Double.PositiveInfinity, Double.NegativeInfinity, Double.NaN, 0.0, -0.0))
       case FloatType => randomNumeric[Float](
         rand, r => intBitsToFloat(r.nextInt()), Seq(Float.MinValue, Float.MinPositiveValue,
-          Float.MaxValue, Float.PositiveInfinity, Float.NegativeInfinity, Float.NaN, 0.0f))
+          Float.MaxValue, Float.PositiveInfinity, Float.NegativeInfinity, Float.NaN, 0.0f, -0.0f))
       case ByteType => randomNumeric[Byte](
         rand, _.nextInt().toByte, Seq(Byte.MinValue, Byte.MaxValue, 0.toByte))
       case IntegerType => randomNumeric[Int](
diff --git a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/LiteralGenerator.scala b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/LiteralGenerator.scala
index d92eb01b69bf0..c8e3b0e157319 100644
--- a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/LiteralGenerator.scala
+++ b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/LiteralGenerator.scala
@@ -68,16 +68,27 @@ object LiteralGenerator {
   lazy val longLiteralGen: Gen[Literal] =
     for { l <- Arbitrary.arbLong.arbitrary } yield Literal.create(l, LongType)
 
+  // The floatLiteralGen and doubleLiteralGen will 50% of the time yield arbitrary values
+  // and 50% of the time will yield some special values that are more likely to reveal
+  // corner cases. This behavior is similar to the integral value generators.
   lazy val floatLiteralGen: Gen[Literal] =
     for {
-      f <- Gen.chooseNum(Float.MinValue / 2, Float.MaxValue / 2,
-        Float.NaN, Float.PositiveInfinity, Float.NegativeInfinity)
+      f <- Gen.oneOf(
+        Gen.oneOf(
+          Float.NaN, Float.PositiveInfinity, Float.NegativeInfinity, Float.MinPositiveValue,
+          Float.MaxValue, -Float.MaxValue, 0.0f, -0.0f, 1.0f, -1.0f),
+        Arbitrary.arbFloat.arbitrary
+      )
     } yield Literal.create(f, FloatType)
 
   lazy val doubleLiteralGen: Gen[Literal] =
     for {
-      f <- Gen.chooseNum(Double.MinValue / 2, Double.MaxValue / 2,
-        Double.NaN, Double.PositiveInfinity, Double.NegativeInfinity)
+      f <- Gen.oneOf(
+        Gen.oneOf(
+          Double.NaN, Double.PositiveInfinity, Double.NegativeInfinity, Double.MinPositiveValue,
+          Double.MaxValue, -Double.MaxValue, 0.0, -0.0, 1.0, -1.0),
+        Arbitrary.arbDouble.arbitrary
+      )
     } yield Literal.create(f, DoubleType)
 
   // TODO cache the generated data