Merge Codec integration tests

Codec integration tests were distributed previously into multiple
test classes with duplicating the fixtures. Now all fixtures are
defined in AbstractCodecIntegrationTests.

[#186]

Author: mp911de

src/test/java/io/r2dbc/postgresql/AbstractCodecIntegrationTests.java

@@ -198,6 +198,11 @@ void intPrimitive() {
         testCodec(Integer.class, 100, "FLOAT8");
     }
 
+    @Test
+    void intTwoDimensionalArray() {
+        testCodec(Integer[][].class, new Integer[][]{{100, 200}, {300, null}}, "INT4[][]");
+    }
+
     @Test
     void json() {
         testCodec(String.class, "{\"hello\": \"world\"}", "JSON", "$1::json");
@@ -289,6 +294,11 @@ void longPrimitive() {
         testCodec(Long.class, 100L, "FLOAT8");
     }
 
+    @Test
+    void longTwoDimensionalArray() {
+        testCodec(Long[][].class, new Long[][]{{100L, 200L}, {300L, null}}, "INT8[][]");
+    }
+
     @Test
     void offsetDateTime() {
         testCodec(OffsetDateTime.class, OffsetDateTime.now(), (actual, expected) -> assertThat(actual.isEqual(expected)).isTrue(), "TIMESTAMP WITH TIME ZONE");
@@ -304,6 +314,11 @@ void shortPrimitive() {
         testCodec(Short.class, (short) 100, "INT2");
     }
 
+    @Test
+    void shortTwoDimensionalArray() {
+        testCodec(Short[][].class, new Short[][]{{100, 200}, {300, null}}, "INT2[][]");
+    }
+
     @Test
     void string() {
         testCodec(String.class, "test-value", (actual, expected) -> assertThat(actual).isEqualToIgnoringWhitespace(expected), "BPCHAR(32)");
@@ -318,6 +333,18 @@ void stringArray() {
         testCodec(String[].class, new String[]{"NULL", "", "test value3", "hello\\world"}, "TEXT[]");
     }
 
+    @Test
+    void stringArrayValueEscaping() {
+        testCodec(String[].class, new String[]{"NULL", null, "R \"2\" DBC", "АБ"}, "BPCHAR[]");
+        testCodec(String[].class, new String[]{"NULL", null, "R \"2\" DBC", "АБ"}, "VARCHAR[]");
+    }
+
+    @Test
+    void stringTwoDimensionalArray() {
+        testCodec(String[][].class, new String[][]{{"test-value1"}, {"test-value2"}}, "BPCHAR[]");
+        testCodec(String[][].class, new String[][]{{"test-value1"}, {"test-value2"}}, "VARCHAR[]");
+    }
+
     @Test
     void uri() {
         testCodec(URI.class, URI.create("https://localhost"), "BPCHAR(128)");