Replace '.name' with '.toString()' in ColumnKind serialization implementation and tests.

Author: ermolenkodev

core/generated-sources/src/main/kotlin/org/jetbrains/kotlinx/dataframe/io/json.kt

@@ -899,7 +899,7 @@ internal fun KlaxonJson.encodeRowWithMetadata(
         when (col) {
             is ColumnGroup<*> -> obj(
                 DATA to encodeRowWithMetadata(col, index, rowLimit),
-                METADATA to obj(KIND to ColumnKind.Group.name)
+                METADATA to obj(KIND to ColumnKind.Group.toString())
             )
 
             is FrameColumn<*> -> {
@@ -908,7 +908,7 @@ internal fun KlaxonJson.encodeRowWithMetadata(
                 obj(
                     DATA to data,
                     METADATA to obj(
-                        KIND to ColumnKind.Frame.name,
+                        KIND to ColumnKind.Frame.toString(),
                         NCOL to col[index].ncol,
                         NROW to col[index].nrow
                     )

core/generated-sources/src/test/kotlin/org/jetbrains/kotlinx/dataframe/io/json.kt

@@ -1000,7 +1000,7 @@ class JsonTests {
 
         val permissions = row["permissions"] as JsonObject
         val metadata = permissions[METADATA] as JsonObject
-        metadata[KIND] shouldBe ColumnKind.Group.name
+        metadata[KIND] shouldBe ColumnKind.Group.toString()
 
         val decodedData = permissions[DATA] as JsonObject
 
@@ -1020,7 +1020,7 @@ class JsonTests {
         val contributors = row["contributors"] as JsonObject
 
         val metadata = contributors[METADATA] as JsonObject
-        metadata[KIND] shouldBe ColumnKind.Frame.name
+        metadata[KIND] shouldBe ColumnKind.Frame.toString()
         metadata[NCOL] shouldBe 8
         metadata[NROW] shouldBe 29
 
@@ -1041,7 +1041,7 @@ class JsonTests {
         val contributors = row["contributors"] as JsonObject
 
         val metadata = contributors[METADATA] as JsonObject
-        metadata[KIND] shouldBe ColumnKind.Frame.name
+        metadata[KIND] shouldBe ColumnKind.Frame.toString()
         metadata[NCOL] shouldBe 8
         metadata[NROW] shouldBe 29
 

core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/io/json.kt

@@ -899,7 +899,7 @@ internal fun KlaxonJson.encodeRowWithMetadata(
         when (col) {
             is ColumnGroup<*> -> obj(
                 DATA to encodeRowWithMetadata(col, index, rowLimit),
-                METADATA to obj(KIND to ColumnKind.Group.name)
+                METADATA to obj(KIND to ColumnKind.Group.toString())
             )
 
             is FrameColumn<*> -> {
@@ -908,7 +908,7 @@ internal fun KlaxonJson.encodeRowWithMetadata(
                 obj(
                     DATA to data,
                     METADATA to obj(
-                        KIND to ColumnKind.Frame.name,
+                        KIND to ColumnKind.Frame.toString(),
                         NCOL to col[index].ncol,
                         NROW to col[index].nrow
                     )

core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/io/json.kt

@@ -1000,7 +1000,7 @@ class JsonTests {
 
         val permissions = row["permissions"] as JsonObject
         val metadata = permissions[METADATA] as JsonObject
-        metadata[KIND] shouldBe ColumnKind.Group.name
+        metadata[KIND] shouldBe ColumnKind.Group.toString()
 
         val decodedData = permissions[DATA] as JsonObject
 
@@ -1020,7 +1020,7 @@ class JsonTests {
         val contributors = row["contributors"] as JsonObject
 
         val metadata = contributors[METADATA] as JsonObject
-        metadata[KIND] shouldBe ColumnKind.Frame.name
+        metadata[KIND] shouldBe ColumnKind.Frame.toString()
         metadata[NCOL] shouldBe 8
         metadata[NROW] shouldBe 29
 
@@ -1041,7 +1041,7 @@ class JsonTests {
         val contributors = row["contributors"] as JsonObject
 
         val metadata = contributors[METADATA] as JsonObject
-        metadata[KIND] shouldBe ColumnKind.Frame.name
+        metadata[KIND] shouldBe ColumnKind.Frame.toString()
         metadata[NCOL] shouldBe 8
         metadata[NROW] shouldBe 29