package com.google.common.collect.testing;

import static com.google.common.base.Preconditions.checkNotNull;
import static java.lang.Math.max;
import static java.util.Arrays.asList;
import static java.util.Collections.singletonMap;
import static java.util.Collections.sort;
import static junit.framework.Assert.assertEquals;
import static junit.framework.Assert.assertFalse;
import static junit.framework.Assert.assertTrue;

import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.collect.Maps.newTreeMap;
import static java.util.Collections.singletonMap;
import static java.util.Collections.unmodifiableSortedMap;

import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.util.Comparator;
import java.util.Iterator;
import java.util.Map;

import static java.util.Arrays.asList;
import static java.util.Collections.emptyMap;
import static java.util.Collections.emptySet;
import static java.util.Collections.singleton;
import static java.util.Collections.singletonMap;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.J2ktIncompatible;
import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;

/**
 * GWT emulation of {@link com.google.common.collect.ImmutableMap}. For non sorted maps, it is a
 * thin wrapper around {@link java.util.Collections#emptyMap()}, {@link
 * Collections#singletonMap(Object, Object)} and {@link java.util.LinkedHashMap} for empty,
 * singleton and regular maps respectively. For sorted maps, it's a thin wrapper around {@link
 * java.util.TreeMap}.
 *
 * @see ImmutableSortedMap

        final String k = "q";
        assertEquals("", getAsQuery(Collections.singletonMap(k, new String[] { "" })));
        assertEquals("aaa", getAsQuery(Collections.singletonMap(k, new String[] { "aaa" })));
        assertEquals("aaa bbb", getAsQuery(Collections.singletonMap(k, new String[] { "aaa bbb" })));
        assertEquals("aaa bbb ccc", getAsQuery(Collections.singletonMap(k, new String[] { "aaa bbb", "ccc" })));

            .addValue(Arrays.asList("C"))
            .addValue(Arrays.asList())
            .add(SHORT_NAME, Collections.singletonMap("k1", "v1"))
            .add(LONG_NAME, Collections.singletonMap("k2", "v2"))
            .addValue(Collections.singletonMap("k3", "v3"))
            .addValue(Collections.emptyMap())
            .addValue(null)
            .add(SHORT_NAME, java.util.Optional.of("1"))

        Settings settings;

        try {
            Map<String, ?> options = Collections.singletonMap(SettingsReader.IS_STRICT, Boolean.TRUE);

            try {
                settings = settingsReader.read(settingsSource.getInputStream(), options);
            } catch (SettingsParseException e) {
                options = Collections.singletonMap(SettingsReader.IS_STRICT, Boolean.FALSE);

            .addValue(Arrays.asList("C"))
            .addValue(Arrays.asList())
            .add(SHORT_NAME, Collections.singletonMap("k1", "v1"))
            .add(LONG_NAME, Collections.singletonMap("k2", "v2"))
            .addValue(Collections.singletonMap("k3", "v3"))
            .addValue(Collections.emptyMap())
            .addValue(null)
            .add(SHORT_NAME, Optional.of("1"))

        ToolchainModel model = new ToolchainModel();
        model.setType("TYPE");
        DefaultToolchain toolchain = newDefaultToolchain(model);

        assertFalse(toolchain.matchesRequirements(Collections.singletonMap("name", "John Doe")));
        verify(logger).debug("Toolchain {} is missing required property: {}", toolchain, "name");
    }

    @Test
    void testNonMatchingRequirementProperty() {

        try {
            Map<String, ?> options = Collections.singletonMap(ToolchainsReader.IS_STRICT, Boolean.TRUE);

            try {
                toolchains = toolchainsReader.read(toolchainsSource.getInputStream(), options);
            } catch (ToolchainsParseException e) {
                options = Collections.singletonMap(ToolchainsReader.IS_STRICT, Boolean.FALSE);