1 files changed, 75 insertions, 0 deletions
diff --git a/runners/gradle-plugin/src/test/kotlin/org/jetbrains/dokka/gradle/kotlin/KotlinGradlePluginVersionTest.kt b/runners/gradle-plugin/src/test/kotlin/org/jetbrains/dokka/gradle/kotlin/KotlinGradlePluginVersionTest.kt
new file mode 100644
index 00000000..b24524f1
--- /dev/null
+++ b/runners/gradle-plugin/src/test/kotlin/org/jetbrains/dokka/gradle/kotlin/KotlinGradlePluginVersionTest.kt
@@ -0,0 +1,75 @@
+package org.jetbrains.dokka.gradle.kotlin
+
+import kotlin.test.*
+
+class KotlinGradlePluginVersionTest {
+
+    @Test
+    fun `should parse versions`() {
+        assertParsedVersion(input = "1.7.22", expectedMajor = 1, expectedMinor = 7, expectedPatch = 22)
+        assertParsedVersion(input = "2.0.0", expectedMajor = 2, expectedMinor = 0, expectedPatch = 0)
+        assertParsedVersion(input = "1.8.22-RC2", expectedMajor = 1, expectedMinor = 8, expectedPatch = 22)
+        assertParsedVersion(input = "1.5.22-Beta", expectedMajor = 1, expectedMinor = 5, expectedPatch = 22)
+        assertParsedVersion(input = "2.7.22-mercury-500", expectedMajor = 2, expectedMinor = 7, expectedPatch = 22)
+        assertParsedVersion(input = "1.7.100-dev-800", expectedMajor = 1, expectedMinor = 7, expectedPatch = 100)
+    }
+
+    @Test
+    fun `should return null on non parsable string`() {
+        assertNull(parse("1.7"))
+        assertNull(parse("1"))
+        assertNull(parse("6"))
+        assertNull(parse("17.0"))
+        assertNull(parse("1..7.0"))
+        assertNull(parse("1.7-Beta"))
+        assertNull(parse("1.7.0Beta"))
+    }
+
+    @Test
+    fun `should compare simple versions`() {
+        assertEquals(0, KotlinGradlePluginVersion(1, 7, 0).compareTo(KotlinGradlePluginVersion(1, 7, 0)))
+
+        assertTrue(KotlinGradlePluginVersion(1, 6, 10) >= KotlinGradlePluginVersion(1, 6, 10))
+        assertTrue(KotlinGradlePluginVersion(1, 6, 10) < KotlinGradlePluginVersion(1, 6, 20))
+        assertTrue(KotlinGradlePluginVersion(1, 6, 10) > KotlinGradlePluginVersion(1, 6, 0))
+
+        assertTrue(KotlinGradlePluginVersion(1, 4, 32) <= KotlinGradlePluginVersion(1, 4, 32))
+        assertTrue(KotlinGradlePluginVersion(1, 4, 32) < KotlinGradlePluginVersion(1, 6, 20))
+        assertTrue(KotlinGradlePluginVersion(1, 4, 32) > KotlinGradlePluginVersion(1, 3, 0))
+
+        assertTrue(KotlinGradlePluginVersion(2, 1, 0) > KotlinGradlePluginVersion(1, 8, 0))
+        assertTrue(KotlinGradlePluginVersion(1, 5, 31) < KotlinGradlePluginVersion(1, 7, 0))
+    }
+
+    @Test
+    fun `should compare custom dev versions with trailing strings`() {
+        assertEquals(0, KotlinGradlePluginVersion(1, 7, 0).compareTo(parseNotNull("1.7.0")))
+
+        assertTrue(KotlinGradlePluginVersion(1, 6, 10) >= parseNotNull("1.6.10-Beta"))
+        assertTrue(KotlinGradlePluginVersion(1, 6, 10) < parseNotNull("1.6.20"))
+        assertTrue(KotlinGradlePluginVersion(1, 6, 10) > parseNotNull("1.6.0-RC2"))
+
+        assertTrue(KotlinGradlePluginVersion(1, 4, 32) <= parseNotNull("1.4.32-dev-142"))
+        assertTrue(KotlinGradlePluginVersion(1, 4, 32) < parseNotNull("1.6.20-Beta"))
+        assertTrue(KotlinGradlePluginVersion(1, 4, 32) > parseNotNull("1.3.0-RC"))
+
+        assertTrue(KotlinGradlePluginVersion(2, 1, 0) > parseNotNull("1.8.0-mercury-500"))
+    }
+
+    private fun assertParsedVersion(
+        input: String,
+        expectedMajor: Int,
+        expectedMinor: Int,
+        expectedPatch: Int
+    ) {
+        val kgpVersion = parseNotNull(input)
+        assertEquals(expectedMajor, kgpVersion.major)
+        assertEquals(expectedMinor, kgpVersion.minor)
+        assertEquals(expectedPatch, kgpVersion.patch)
+        assertEquals(KotlinGradlePluginVersion(expectedMajor, expectedMinor, expectedPatch), kgpVersion)
+    }
+
+    private fun parseNotNull(input: String): KotlinGradlePluginVersion = assertNotNull(parse(input))
+
+    private fun parse(input: String): KotlinGradlePluginVersion? = parseKotlinVersion(input)
+}