1 files changed, 79 insertions, 0 deletions
diff --git a/formats/json-tests/commonTest/src/kotlinx/serialization/json/JsonExponentTest.kt b/formats/json-tests/commonTest/src/kotlinx/serialization/json/JsonExponentTest.kt
new file mode 100644
index 00000000..0f31ac50
--- /dev/null
+++ b/formats/json-tests/commonTest/src/kotlinx/serialization/json/JsonExponentTest.kt
@@ -0,0 +1,79 @@
+package kotlinx.serialization.json
+
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.test.*
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+class JsonExponentTest : JsonTestBase() {
+    @Serializable
+    data class SomeData(val count: Long)
+    @Serializable
+    data class SomeDataDouble(val count: Double)
+
+    @Test
+    fun testExponentDecodingPositive() = parametrizedTest {
+        val decoded =  Json.decodeFromString<SomeData>("""{ "count": 23e11 }""", it)
+        assertEquals(2300000000000, decoded.count)
+    }
+
+    @Test
+    fun testExponentDecodingNegative() = parametrizedTest {
+        val decoded = Json.decodeFromString<SomeData>("""{ "count": -10E1 }""", it)
+        assertEquals(-100, decoded.count)
+    }
+
+    @Test
+    fun testExponentDecodingPositiveDouble() = parametrizedTest {
+        val decoded = Json.decodeFromString<SomeDataDouble>("""{ "count": 1.5E1 }""", it)
+        assertEquals(15.0, decoded.count)
+    }
+
+    @Test
+    fun testExponentDecodingNegativeDouble() = parametrizedTest {
+        val decoded = Json.decodeFromString<SomeDataDouble>("""{ "count": -1e-1 }""", it)
+        assertEquals(-0.1, decoded.count)
+    }
+
+    @Test
+    fun testExponentDecodingErrorTruncatedDecimal() = parametrizedTest {
+        assertFailsWithSerial("JsonDecodingException")
+        { Json.decodeFromString<SomeData>("""{ "count": -1E-1 }""", it) }
+    }
+
+    @Test
+    fun testExponentDecodingErrorExponent() = parametrizedTest {
+        assertFailsWithSerial("JsonDecodingException")
+        { Json.decodeFromString<SomeData>("""{ "count": 1e-1e-1 }""", it) }
+    }
+
+    @Test
+    fun testExponentDecodingErrorExponentDouble() = parametrizedTest {
+        assertFailsWithSerial("JsonDecodingException")
+        { Json.decodeFromString<SomeDataDouble>("""{ "count": 1e-1e-1 }""", it) }
+    }
+
+    @Test
+    fun testExponentOverflowDouble() = parametrizedTest {
+        assertFailsWithSerial("JsonDecodingException")
+        { Json.decodeFromString<SomeDataDouble>("""{ "count": 10000e10000 }""", it) }
+    }
+
+    @Test
+    fun testExponentUnderflowDouble() = parametrizedTest {
+        assertFailsWithSerial("JsonDecodingException")
+        { Json.decodeFromString<SomeDataDouble>("""{ "count": -100e2222 }""", it) }
+    }
+
+    @Test
+    fun testExponentOverflow() = parametrizedTest {
+        assertFailsWithSerial("JsonDecodingException")
+        { Json.decodeFromString<SomeData>("""{ "count": 10000e10000 }""", it) }
+    }
+
+    @Test
+    fun testExponentUnderflow() = parametrizedTest {
+        assertFailsWithSerial("JsonDecodingException")
+        { Json.decodeFromString<SomeData>("""{ "count": -10000e10000 }""", it) }
+    }
+}
+\ No newline at end of file